ABSTRACT 1. INTRODUCTION

Size: px
Start display at page:

Download "ABSTRACT 1. INTRODUCTION"

Transcription

1 Published in SPIE Proceedings, Vol.3084, 1997, p Computer 3-d site model generation based on aerial images Sergei Y. Zheltov, Yuri B. Blokhinov, Alexander A. Stepanov, Sergei V. Skryabin, Alexander V. Sibiryakov State Research Institute of Aviation Systems (GosNIIAS) 7, Victorenko str., Moscow, , Russia tel. 7 (095) , fax. 7 (095) zhl@fenix.niias.msk.su ABSTRACT The technology for three-dimensional model design of real world scenes and its photorealistic rendering are current topic of investigation. Development of such technology is very attractive to implement in vast variety of applications: military mission planning, crew training, civil engineering, architecture, virtual reality entertainments- just a few was mentioned. 3D photorealistic models of urban areas are often discussed now as upgrade from existing two-dimensional geographic information systems. Possibility of site model generation with small details depends on two main factors: available source dataset and computer power resources. In this paper PC based technology is presented, so the scenes of middle resolution (scale of 1:1000) be constructed. Types of datasets are the gray level aerial stereo pairs of photographs (scale of 1:14000) and true color on ground photographs of buildings (scale ca.1:1000). True color terrestrial photographs are also necessary for photorealistic rendering, that in high extent improves human perception of the scene. Keywords: digital photogrammetry, 3D computer graphics, site modeling, orthoimage, digital terrain model, feature extraction, texture mapping 1. INTRODUCTION Photorealistic visualization of the terrain and features by means of 3D computer graphics is very attractive to use in various applications such as civil engineering, mission rehearsal, mission planning, urban architecture, animation movie etc. All the problems mentioned above require considerable computer resources so the best choice to solve them are the powerful graphical workstations 1,2. Such instrumentation, excellent though from the point of view of high data processing speed and huge disk memory, is not available to every user or organization who really needs it because of extremely high price. On the other hand, modern personal computers with their fast processors and large volume external devices are capable of supporting most of image based applications: extract data from the imagery, analyze data, create products, create ruster and vector databases. The process of 3D realistic scenes generation on PC, however, implies specific features: all basic computational algorithms should be extremely effective and computer resources optimized. To achieve high accuracy in geometric and radiometric modeling a considerable amount of processing time is required; analogous is the case of very detailed rendering all over the picture field. Every time some reasonable simplification are necessary according to the main goal the programming product should achieve. If photorealistic visualization in real time is of primary importance it can be achieved using precalculated views 3.

2 The paper outlines a typical system product workflow for programming application Pisoft-3DL realized on PC with Pentium-133, 16Mb of RAM and 1Gb of disk space. It contains a short description of the principal steps in obtaining data from stereo image pair, methods of PC based digital photogrammetry and machine vision algorithms and software for scene object extraction. We present algorithms and software for automatic and semi-automatic extraction and geometric reconstruction of digital terrain model, buildings, one-dimensional object structures (roads, rivers, lake coasts etc.). Special attention is given to the original functional features of the system under consideration. Some problems of phototextures patches mapping onto not exactly suitable geometric constructions are solved. Two examples of real site modeling are examined. One of them is the village Litvinovo near Moscow, another- mountainous region in Caucasus. The results in the manner of wireframe site model and orthophoto as it required on input of virtual reality system are represented. 2. INPUT/OUTPUT DATA Pisoft-3DL uses digital stereo image pairs as input for photogrammetric workflow. Both geometry and textures of terrain and features can be taken from here. As alternative means of input the system can take scene elements (terrain, roads, woods, lakes and houses) in vector format. It gives to operator the opportunity to break the process of feature extraction with saving data already obtained in file and to begin next session with broken point. Such opportunity exists even in automatic terrain extraction mode: if the user breaks the procedure, intermediate results are saved in file and later he may continue the process. The size of images the Pisoft-3DL is able to process depends on available disk space only and achieved up to 2 300Mb for stereo pair. Examples presented in the current paper for stereo pair of village Litvinovo near Moscow occupy 2 9Mb and mountainous region in Caucasus 2 2Mb. Each image should have some sort of fiducial marks to relate digitized frame image to its original film coordinates. Another parts of input data are film digitizing precision, camera calibration parameters and distortions. These can be taken either from files or in dialog mode. Output is also subdivided in raster (orthophoto) and vector (Digital Terrain Model (DTM), roads, woods, lakes and houses). Raster format used is BMP and vector data can be exported either in DXF or internal Pisoft-3DL format. 3. BASIC FUNCTIONS The main possible data source for systems similar to Pisoft-3DL are aerial photographs, so usual photogrammetric procedures can give both geometry and texture of extracted objects 3. Data acquisition must be done separately for each graphical layer. Automatic and semi-automatic data capturing with methods of machine vision and digital photogrammetry is increasingly practicable for this purpose. In this chapter the basic items of digital site modeling technology are presented in brief. A typical system product flow is represented in fig.1. Internal Orientation requires on input digitized frame images with fiducials. It allows to compute the transformation relating image pixels of digitized film imagery to the original photo coordinate system. This transformation provides an accurate mapping from ground space to image space for geo-positioning.

3 Relative Orientation connects the left photo coordinate system to right one. Further it gives opportunity to fulfill exterior orientation when the number of ground points is not sufficient. Exterior Orientation is used to fix geoposition of left and right images. Coordinate systems supported are Gauss and Local Space Rectangular (LSR). Absolute orientation to ground or relative orientation capabilities are provided. Input Imagery Vector Format Data Internal Orientation Relative Orientation External Orientation Automatic Terrain Extraction DTM Correction Interactive DTM Editing DTM Feature Extraction Features Lists Ortophoto Generation Ortophoto Textures fig.1

4 Both Relative and Exterior Orientations are performed in user-friendly semi-automatic interactive modes. Automatic Terrain Extraction is a primary function of the system under consideration. Digital Terrain Model (DTM) is automatically generated over the intersection area using Hierarchical Subpixel Correlation, which is fully automatic. First, the image pyramid is created. At each pyramid level the usual cross-correlation matching is performed. The special original Signal Absence Criterion is used to accelerate the correlator processing. To correct outliers a robust filtering is performed every time after pyramid level matching. The matched points are used as initial approximation for the next level. At the last iteration over the full resolution image the original fast converged Subpixel Cross-Correlation Algorithm is performed to find locations of the conjugate points at right image with subpixel accuracy. DTM Correction. After automatic DTM generation, the operator can review the terrain obtained either in stereo or by means of 2-D viewer with 256 levels of gray to represent total elevation range. Although DTM postprocessing including interpolation and filtering is made automatically the operator has the opportunity to accept it after review, or elect some of predefined filters to correct it once more. Correction is considered here as automatic procedure. Interactive Terrain Editing tools are provided to correct the results of the automatic DTM generation process. The DTM coloring is used to visualize points with low value of Figure of Merit. These interactive tools allow efficient editing of single points and groups of points and include 1. Point-by-point static editing 2. Peaks and cavities cutting 3. Area smoothing 4. Constant/lake filling. Feature Extraction is the process of delineating and defining features located on the surface of the earth, such as buildings, roads, rivers, woods and lakes. Each feature belongs to a definite group of the scene objects called class or layer. When delineating a feature in stereo mode, the operator controls all three dimensions using mouse and special keys on keyboard. The delineations consist of individually sampled points which constitute frames of houses or curves of linear objects (roads, woods). Features can be smoothed by fitting splines. Extraction of all linear objects is semi-automatic, based on snake algorithm. Extraction of houses starts from automatical procedure, efficiency of the algorithms underlay depends on the input imagery quality in great extent. After the procedure is finished, operator can visualize outlines of the houses found successfully on the stereo pair images. The remaining part of true buildings extraction is fulfilled manually. Both DTM and features can be saved in file in vector Pisoft-3DL format or exported in DXF. Orthophoto Generation is one of the primary functions of the digital photogrammetric system and orthorectified image itself is a final output product. The standard input to the orthorectification process is a DTM file, the original digital image input, the exterior orientation parameters of the photo, and the desired pixel size of the output image. The output is an orthorectified image in BMP format. 4. SITE MODELING

5 Primary production of digital photogrammetric system such as Digital Terrain Model (DTM), Digital Model of Scene Objects (DMSO), and orthorectified image can be used as input for a system of virtual reality. fig.2

6 fig.3

7 fig.4

8 fig.5 First step in this way is a Site Model (SM) generation. Site Model comprises DTM and DMSO accurately fitted to DTM. A wireframe representation is commonly used to visualize site model. Two examples of real site modeling are presented here. First of them is the village Litvinovo near Moscow (fig.2), and the second is mountainous region in Caucasus (fig.3). The corresponding orthophotos are presented in fig.4 and fig.5. For 3D scene objects whose vertical sides are usually invisible in the aerial photographs the additional terrain photographs are required as a source of textures for rendering. In rural areas these are buildings, woods, hedges and trees. Digital imaged are received by scanning the photographs. The PC-based stereo visualization tools for virtual reality product generation are discussed in more details in the current volume 4.

9 5. CONCLUSION The system offering all the major photogrammetric functions is developed for PC-based implementation of site modeling process. The software includes both automatic and semi-automatic modules. The size of the input imagery is limited only by disk space of computer. According to peculiarity of realization such complicated system on PC all basic computational algorithms are constructed as extremely effective and computer resources optimized. Special attention was paid to automatic DTM extraction and feature extraction. All the original features of Pisoft-3DL are considered in brief. REFERENCES 1. A. Gruen, Digital photogrammetric stations revisited, International Archives of Photogrammetry and Remote Sensing, Volume XXXI, part B2, com. II, pp , A. S. Walker, and G. Petrie, Digital photogrammetric workstations , International Archives of Photogrammetry and Remote Sensing, Volume XXXI, part B2, com. II, pp , R. Würländer, M. Gruber, and H. Mayer, Photorealistic terrain visualisation using methods of 3-D computer graphics and digital Photogrammetry, International Archives of Photogrammetry and Remote Sensing, Volume XXXI, part B4, com. IV, pp , A. A. Stepanov, S. Y. Zheltov, K. R. Kiryakov, A. I. Invalev, and A. V. Boltunov, PC-based stereo visualization tools for aviation virtual reality projects, in current Volume.

APPROACH TO ACCURATE PHOTOREALISTIC MODEL GENERATION FOR COMPLEX 3D OBJECTS

APPROACH TO ACCURATE PHOTOREALISTIC MODEL GENERATION FOR COMPLEX 3D OBJECTS Knyaz, Vladimir APPROACH TO ACCURATE PHOTOREALISTIC MODEL GENERATION FOR COMPLEX 3D OBJECTS Vladimir A. Knyaz, Sergey Yu. Zheltov State Research Institute of Aviation System (GosNIIAS), Victorenko str.,

More information

AUTOMATIC PHOTO ORIENTATION VIA MATCHING WITH CONTROL PATCHES

AUTOMATIC PHOTO ORIENTATION VIA MATCHING WITH CONTROL PATCHES AUTOMATIC PHOTO ORIENTATION VIA MATCHING WITH CONTROL PATCHES J. J. Jaw a *, Y. S. Wu b Dept. of Civil Engineering, National Taiwan University, Taipei,10617, Taiwan, ROC a jejaw@ce.ntu.edu.tw b r90521128@ms90.ntu.edu.tw

More information

GALILEO SISCAM APPROACH TO DIGITAL PHOTOGRAMMETRY. F. Flamigni A. Viti Galileo Siscam S.p.A.

GALILEO SISCAM APPROACH TO DIGITAL PHOTOGRAMMETRY. F. Flamigni A. Viti Galileo Siscam S.p.A. GALILEO SISCAM APPROACH TO DIGITAL PHOTOGRAMMETRY F. Flamigni A. Viti Galileo Siscam S.p.A. ABSTRACT: The application of the least squares matching procedure to an analytical stereoplotter is described.

More information

A NEW TOOL FOR ARCHITECTURAL PHOTOGRAMMETRY: THE 3D NAVIGATOR S. Dequal, A. Lingua, F. Rinaudo - Politecnico di Torino - ITALY

A NEW TOOL FOR ARCHITECTURAL PHOTOGRAMMETRY: THE 3D NAVIGATOR S. Dequal, A. Lingua, F. Rinaudo - Politecnico di Torino - ITALY A NEW TOOL FOR ARCHITECTURAL PHOTOGRAMMETRY: THE 3D NAVIGATOR S. Dequal, A. Lingua, F. Rinaudo - Politecnico di Torino - ITALY KEY WORDS: 3D navigation, Digital Images, LIS, Archiving, ABSTRACT People

More information

AUTOMATIC IMAGE ORIENTATION BY USING GIS DATA

AUTOMATIC IMAGE ORIENTATION BY USING GIS DATA AUTOMATIC IMAGE ORIENTATION BY USING GIS DATA Jeffrey J. SHAN Geomatics Engineering, School of Civil Engineering Purdue University IN 47907-1284, West Lafayette, U.S.A. jshan@ecn.purdue.edu Working Group

More information

PHOTOGRAMMETRIC TECHNIQUE FOR TEETH OCCLUSION ANALYSIS IN DENTISTRY

PHOTOGRAMMETRIC TECHNIQUE FOR TEETH OCCLUSION ANALYSIS IN DENTISTRY PHOTOGRAMMETRIC TECHNIQUE FOR TEETH OCCLUSION ANALYSIS IN DENTISTRY V. A. Knyaz a, *, S. Yu. Zheltov a, a State Research Institute of Aviation System (GosNIIAS), 539 Moscow, Russia (knyaz,zhl)@gosniias.ru

More information

AUTOMATED CALIBRATION TECHNIQUE FOR PHOTOGRAMMETRIC SYSTEM BASED ON A MULTI-MEDIA PROJECTOR AND A CCD CAMERA

AUTOMATED CALIBRATION TECHNIQUE FOR PHOTOGRAMMETRIC SYSTEM BASED ON A MULTI-MEDIA PROJECTOR AND A CCD CAMERA AUTOMATED CALIBRATION TECHNIQUE FOR PHOTOGRAMMETRIC SYSTEM BASED ON A MULTI-MEDIA PROJECTOR AND A CCD CAMERA V. A. Knyaz * GosNIIAS, State Research Institute of Aviation System, 539 Moscow, Russia knyaz@gosniias.ru

More information

DTM GENERATION FROM RUSSIAN TK-350 SPACE IMAGERY IN THE PC-BASED PHOTOGRAMMETRIC SYSTEM Z-SPACE

DTM GENERATION FROM RUSSIAN TK-350 SPACE IMAGERY IN THE PC-BASED PHOTOGRAMMETRIC SYSTEM Z-SPACE DTM GENERATION FROM RUSSIAN TK-350 SPACE IMAGERY IN THE PC-BASED PHOTOGRAMMETRIC SYSTEM Z-SPACE Alexander SIBIRYAKOV State Research Institute of Aviation Systems (GosNIIAS), Moscow, Russia sibiryakov@mtu-net.ru

More information

AN APPROACH OF SEMIAUTOMATED ROAD EXTRACTION FROM AERIAL IMAGE BASED ON TEMPLATE MATCHING AND NEURAL NETWORK

AN APPROACH OF SEMIAUTOMATED ROAD EXTRACTION FROM AERIAL IMAGE BASED ON TEMPLATE MATCHING AND NEURAL NETWORK AN APPROACH OF SEMIAUTOMATED ROAD EXTRACTION FROM AERIAL IMAGE BASED ON TEMPLATE MATCHING AND NEURAL NETWORK Xiangyun HU, Zuxun ZHANG, Jianqing ZHANG Wuhan Technique University of Surveying and Mapping,

More information

PHODIS Innovations. CHRISTOPH DÖRSTEL, Aalen 1. INTRODUCTION

PHODIS Innovations. CHRISTOPH DÖRSTEL, Aalen 1. INTRODUCTION Dörstel 5 PHODIS Innovations CHRISTOPH DÖRSTEL, Aalen ABSTRACT The contents of this paper are the new applications and functions in the digital photogrammetric image processing system PHODIS. The report

More information

COMPARATIVE CHARACTERISTICS OF DEM OBTAINED FROM SATELLITE IMAGES SPOT-5 AND TK-350

COMPARATIVE CHARACTERISTICS OF DEM OBTAINED FROM SATELLITE IMAGES SPOT-5 AND TK-350 COMPARATIVE CHARACTERISTICS OF DEM OBTAINED FROM SATELLITE IMAGES SPOT-5 AND TK-350 Dr. V. F. Chekalin a*, M. M. Fomtchenko a* a Sovinformsputnik, 47, Leningradsky Pr., 125167 Moscow, Russia common@sovinformsputnik.com

More information

POSITIONING A PIXEL IN A COORDINATE SYSTEM

POSITIONING A PIXEL IN A COORDINATE SYSTEM GEOREFERENCING AND GEOCODING EARTH OBSERVATION IMAGES GABRIEL PARODI STUDY MATERIAL: PRINCIPLES OF REMOTE SENSING AN INTRODUCTORY TEXTBOOK CHAPTER 6 POSITIONING A PIXEL IN A COORDINATE SYSTEM The essential

More information

Extracting Elevation from Air Photos

Extracting Elevation from Air Photos Extracting Elevation from Air Photos TUTORIAL A digital elevation model (DEM) is a digital raster surface representing the elevations of a terrain for all spatial ground positions in the image. Traditionally

More information

Surface Contents Author Index

Surface Contents Author Index Surface Contents Author Index Xiangyun HU & C.Vincent Tao AUTOMATIC MAIN ROAD EXTRACTION FROM HIGH RESOLUTION SATELLITE IMAGERY Xiangyun HU, C.Vincent Tao Geospatial Information and Communication (Geo-ICT)

More information

TERRESTRIAL AND NUMERICAL PHOTOGRAMMETRY 1. MID -TERM EXAM Question 4

TERRESTRIAL AND NUMERICAL PHOTOGRAMMETRY 1. MID -TERM EXAM Question 4 TERRESTRIAL AND NUMERICAL PHOTOGRAMMETRY 1. MID -TERM EXAM Question 4 23 November 2001 Two-camera stations are located at the ends of a base, which are 191.46m long, measured horizontally. Photographs

More information

Files Used in this Tutorial

Files Used in this Tutorial Generate Point Clouds and DSM Tutorial This tutorial shows how to generate point clouds and a digital surface model (DSM) from IKONOS satellite stereo imagery. You will view the resulting point clouds

More information

FAST PRODUCTION OF VIRTUAL REALITY CITY MODELS

FAST PRODUCTION OF VIRTUAL REALITY CITY MODELS FAST PRODUCTION OF VIRTUAL REALITY CITY MODELS Claus Brenner and Norbert Haala Institute for Photogrammetry (ifp) University of Stuttgart Geschwister-Scholl-Straße 24, 70174 Stuttgart, Germany Ph.: +49-711-121-4097,

More information

Programmable Graphics Processing Units for Urban Landscape Visualization

Programmable Graphics Processing Units for Urban Landscape Visualization Programmable Graphics Processing Units for Urban Landscape Visualization M. Kada, T. Balz, N. Haala, D. Fritsch Institute for Photogrammetry, Universität Stuttgart, Germany ABSTRACT: The availability of

More information

A NEW APPROACH FOR GENERATING A MEASURABLE SEAMLESS STEREO MODEL BASED ON MOSAIC ORTHOIMAGE AND STEREOMATE

A NEW APPROACH FOR GENERATING A MEASURABLE SEAMLESS STEREO MODEL BASED ON MOSAIC ORTHOIMAGE AND STEREOMATE A NEW APPROACH FOR GENERATING A MEASURABLE SEAMLESS STEREO MODEL BASED ON MOSAIC ORTHOIMAGE AND STEREOMATE Mi Wang State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing

More information

Photogrammetry and 3D city modelling

Photogrammetry and 3D city modelling Digital Architecture and Construction 209 Photogrammetry and 3D city modelling Y. Kobayashi School of Architecture and Landscape Architecture, Arizona State University, USA Abstract 3D city modelling and

More information

Multiview Photogrammetry 3D Virtual Geology for everyone

Multiview Photogrammetry 3D Virtual Geology for everyone Multiview Photogrammetry 3D Virtual Geology for everyone A short course Marko Vrabec University of Ljubljana, Department of Geology FIRST: some background info Precarious structural measurements of fractures

More information

TrueOrtho with 3D Feature Extraction

TrueOrtho with 3D Feature Extraction TrueOrtho with 3D Feature Extraction PCI Geomatics has entered into a partnership with IAVO to distribute its 3D Feature Extraction (3DFE) software. This software package compliments the TrueOrtho workflow

More information

Automatic updating of urban vector maps

Automatic updating of urban vector maps Automatic updating of urban vector maps S. Ceresola, A. Fusiello, M. Bicego, A. Belussi, and V. Murino Dipartimento di Informatica, Università di Verona Strada Le Grazie 15, 37134 Verona, Italy Abstract.

More information

PART A Three-Dimensional Measurement with iwitness

PART A Three-Dimensional Measurement with iwitness PART A Three-Dimensional Measurement with iwitness A1. The Basic Process The iwitness software system enables a user to convert two-dimensional (2D) coordinate (x,y) information of feature points on an

More information

EPIPOLAR IMAGES FOR CLOSE RANGE APPLICATIONS

EPIPOLAR IMAGES FOR CLOSE RANGE APPLICATIONS EPIPOLAR IMAGES FOR CLOSE RANGE APPLICATIONS Vassilios TSIOUKAS, Efstratios STYLIANIDIS, Petros PATIAS The Aristotle University of Thessaloniki, Department of Cadastre Photogrammetry and Cartography Univ.

More information

Implementation of Flight Simulator using 3-Dimensional Terrain Modeling

Implementation of Flight Simulator using 3-Dimensional Terrain Modeling Implementation of Flight Simulator using 3-Dimensional Terrain Modeling 1 1, First Author School of Computer Engineering, Hanshin University, Osan City, S. Korea, stryoo@hs.ac.kr Abstract During the last

More information

3D-OBJECT DETECTION METHOD BASED ON THE STEREO IMAGE TRANSFORMATION TO THE COMMON OBSERVATION POINT

3D-OBJECT DETECTION METHOD BASED ON THE STEREO IMAGE TRANSFORMATION TO THE COMMON OBSERVATION POINT 3D-OBJECT DETECTION METHOD BASED ON THE STEREO IMAGE TRANSFORMATION TO THE COMMON OBSERVATION POINT V. M. Lisitsyn *, S. V. Tikhonova ** State Research Institute of Aviation Systems, Moscow, Russia * lvm@gosniias.msk.ru

More information

1. Introduction. A CASE STUDY Dense Image Matching Using Oblique Imagery Towards All-in- One Photogrammetry

1. Introduction. A CASE STUDY Dense Image Matching Using Oblique Imagery Towards All-in- One Photogrammetry Submitted to GIM International FEATURE A CASE STUDY Dense Image Matching Using Oblique Imagery Towards All-in- One Photogrammetry Dieter Fritsch 1, Jens Kremer 2, Albrecht Grimm 2, Mathias Rothermel 1

More information

MATLAB and photogrammetric applications

MATLAB and photogrammetric applications MALAB and photogrammetric applications Markéta Potůčková Department of applied geoinformatics and cartography Faculty of cience, Charles University in Prague Abstract Many automated processes in digital

More information

CO-REGISTERING AND NORMALIZING STEREO-BASED ELEVATION DATA TO SUPPORT BUILDING DETECTION IN VHR IMAGES

CO-REGISTERING AND NORMALIZING STEREO-BASED ELEVATION DATA TO SUPPORT BUILDING DETECTION IN VHR IMAGES CO-REGISTERING AND NORMALIZING STEREO-BASED ELEVATION DATA TO SUPPORT BUILDING DETECTION IN VHR IMAGES Alaeldin Suliman, Yun Zhang, Raid Al-Tahir Department of Geodesy and Geomatics Engineering, University

More information

Construction of Complex City Landscape with the Support of CAD Model

Construction of Complex City Landscape with the Support of CAD Model Construction of Complex City Landscape with the Support of CAD Model MinSun 1 JunChen 2 AinaiMa 1 1.Institute of RS & GIS, Peking University, Beijing, China, 100871 2.National Geomatics Center of China,

More information

Cultural Heritage. Geometric Recording of Cultural Monuments. Basic Principles of Geometric Recording. Specific requirements

Cultural Heritage. Geometric Recording of Cultural Monuments. Basic Principles of Geometric Recording. Specific requirements LOW COST DIGITAL PHOTOGRAMMETRIC TECHNIQUES FOR THE DOCUMENTATION OF CULTURAL HERITAGE Ch. Ioannidis, S. Soile, C. Potsiou Lab. of Photogrammetry School of Rural & Surveying Eng. National Technical University

More information

Model-Based Stereo. Chapter Motivation. The modeling system described in Chapter 5 allows the user to create a basic model of a

Model-Based Stereo. Chapter Motivation. The modeling system described in Chapter 5 allows the user to create a basic model of a 96 Chapter 7 Model-Based Stereo 7.1 Motivation The modeling system described in Chapter 5 allows the user to create a basic model of a scene, but in general the scene will have additional geometric detail

More information

Engineering, Korea Advanced Institute of Science and Technology (hytoiy wpark tjkim Working Group

Engineering, Korea Advanced Institute of Science and Technology (hytoiy wpark tjkim Working Group THE DEVELOPMENT OF AN ACCURATE DEM EXTRACTION STRATEGY FOR SATELLITE IMAGE PAIRS USING EPIPOLARITY OF LINEAR PUSHBROOM SENSORS AND INTELLIGENT INTERPOLATION SCHEME Hae-Yeoun Lee *, Wonkyu Park **, Taejung

More information

DEVELOPMENT OF ORIENTATION AND DEM/ORTHOIMAGE GENERATION PROGRAM FOR ALOS PRISM

DEVELOPMENT OF ORIENTATION AND DEM/ORTHOIMAGE GENERATION PROGRAM FOR ALOS PRISM DEVELOPMENT OF ORIENTATION AND DEM/ORTHOIMAGE GENERATION PROGRAM FOR ALOS PRISM Izumi KAMIYA Geographical Survey Institute 1, Kitasato, Tsukuba 305-0811 Japan Tel: (81)-29-864-5944 Fax: (81)-29-864-2655

More information

PhotoMesh v7.0. What s New in PhotoMesh v7.0

PhotoMesh v7.0. What s New in PhotoMesh v7.0 PhotoMesh v7.0 PhotoMesh v7.0 fully automates the generation of high-resolution, textured, 3D mesh models from standard 2D photographs. Combining any number of photographs, in a wide range of formats and

More information

Prof. Jose L. Flores, MS, PS Dept. of Civil Engineering & Surveying

Prof. Jose L. Flores, MS, PS Dept. of Civil Engineering & Surveying Prof. Jose L. Flores, MS, PS Dept. of Civil Engineering & Surveying Problem One of the challenges for any Geographic Information System (GIS) application is to keep the spatial data up to date and accurate.

More information

DATA FUSION FOR MULTI-SCALE COLOUR 3D SATELLITE IMAGE GENERATION AND GLOBAL 3D VISUALIZATION

DATA FUSION FOR MULTI-SCALE COLOUR 3D SATELLITE IMAGE GENERATION AND GLOBAL 3D VISUALIZATION DATA FUSION FOR MULTI-SCALE COLOUR 3D SATELLITE IMAGE GENERATION AND GLOBAL 3D VISUALIZATION ABSTRACT: Yun Zhang, Pingping Xie, and Hui Li Department of Geodesy and Geomatics Engineering, University of

More information

GRAPHICS TOOLS FOR THE GENERATION OF LARGE SCALE URBAN SCENES

GRAPHICS TOOLS FOR THE GENERATION OF LARGE SCALE URBAN SCENES GRAPHICS TOOLS FOR THE GENERATION OF LARGE SCALE URBAN SCENES Norbert Haala, Martin Kada, Susanne Becker, Jan Böhm, Yahya Alshawabkeh University of Stuttgart, Institute for Photogrammetry, Germany Forename.Lastname@ifp.uni-stuttgart.de

More information

MONO-IMAGE INTERSECTION FOR ORTHOIMAGE REVISION

MONO-IMAGE INTERSECTION FOR ORTHOIMAGE REVISION MONO-IMAGE INTERSECTION FOR ORTHOIMAGE REVISION Mohamed Ibrahim Zahran Associate Professor of Surveying and Photogrammetry Faculty of Engineering at Shoubra, Benha University ABSTRACT This research addresses

More information

ENVI Automated Image Registration Solutions

ENVI Automated Image Registration Solutions ENVI Automated Image Registration Solutions Xiaoying Jin Harris Corporation Table of Contents Introduction... 3 Overview... 4 Image Registration Engine... 6 Image Registration Workflow... 8 Technical Guide...

More information

BUILDING RECONSTRUCTION BASED ON THREE-DIMENSIONAL PHOTO-MODELS AND TOPOLOGIC APPROACHES

BUILDING RECONSTRUCTION BASED ON THREE-DIMENSIONAL PHOTO-MODELS AND TOPOLOGIC APPROACHES BUILDING RECONSTRUCTION BASED ON THREE-DIMENSIONAL PHOTO-MODELS AND TOPOLOGIC APPROACHES Mohamed Nour El Din, O. Al Khalil, Pierre Grussenmeyer, Mathieu Koehl To cite this version: Mohamed Nour El Din,

More information

Automatic DEM Extraction

Automatic DEM Extraction Technical Specifications Automatic DEM Extraction The Automatic DEM Extraction module allows you to create Digital Elevation Models (DEMs) from stereo airphotos, stereo images and RADAR data. Image correlation

More information

Producing Ortho Imagery In ArcGIS. Hong Xu, Mingzhen Chen, Ringu Nalankal

Producing Ortho Imagery In ArcGIS. Hong Xu, Mingzhen Chen, Ringu Nalankal Producing Ortho Imagery In ArcGIS Hong Xu, Mingzhen Chen, Ringu Nalankal Agenda Ortho imagery in GIS ArcGIS ortho mapping solution Workflows - Satellite imagery - Digital aerial imagery - Scanned imagery

More information

GIS Data Collection. This chapter reviews the main methods of GIS data capture and transfer and introduces key practical management issues.

GIS Data Collection. This chapter reviews the main methods of GIS data capture and transfer and introduces key practical management issues. 9 GIS Data Collection OVERVIEW This chapter reviews the main methods of GIS data capture and transfer and introduces key practical management issues. It distinguishes between primary (direct measurement)

More information

MATCH-AT: Recent Developments and Performance

MATCH-AT: Recent Developments and Performance 'Photogrammetric Week 01' D. Fritsch & R. Spiller, Eds. Wichmann Verlag, Heidelberg 2001. Sigle, Heuchel 189 MATCH-AT: Recent Developments and Performance MANFRED SIGLE, TOBIAS HEUCHEL, Stuttgart ABSTRACT

More information

New Requirements for the Relief in the Topographic Databases of the Institut Cartogràfic de Catalunya

New Requirements for the Relief in the Topographic Databases of the Institut Cartogràfic de Catalunya New Requirements for the Relief in the Topographic Databases of the Institut Cartogràfic de Catalunya Blanca Baella, Maria Pla Institut Cartogràfic de Catalunya, Barcelona, Spain Abstract Since 1983 the

More information

ACCURACY ANALYSIS AND SURFACE MAPPING USING SPOT 5 STEREO DATA

ACCURACY ANALYSIS AND SURFACE MAPPING USING SPOT 5 STEREO DATA ACCURACY ANALYSIS AND SURFACE MAPPING USING SPOT 5 STEREO DATA Hannes Raggam Joanneum Research, Institute of Digital Image Processing Wastiangasse 6, A-8010 Graz, Austria hannes.raggam@joanneum.at Commission

More information

Characterizing Strategies of Fixing Full Scale Models in Construction Photogrammetric Surveying. Ryan Hough and Fei Dai

Characterizing Strategies of Fixing Full Scale Models in Construction Photogrammetric Surveying. Ryan Hough and Fei Dai 697 Characterizing Strategies of Fixing Full Scale Models in Construction Photogrammetric Surveying Ryan Hough and Fei Dai West Virginia University, Department of Civil and Environmental Engineering, P.O.

More information

Training i Course Remote Sensing Basic Theory & Image Processing Methods September 2011

Training i Course Remote Sensing Basic Theory & Image Processing Methods September 2011 Training i Course Remote Sensing Basic Theory & Image Processing Methods 19 23 September 2011 Geometric Operations Michiel Damen (September 2011) damen@itc.nl ITC FACULTY OF GEO-INFORMATION SCIENCE AND

More information

DATA FUSION AND INTEGRATION FOR MULTI-RESOLUTION ONLINE 3D ENVIRONMENTAL MONITORING

DATA FUSION AND INTEGRATION FOR MULTI-RESOLUTION ONLINE 3D ENVIRONMENTAL MONITORING DATA FUSION AND INTEGRATION FOR MULTI-RESOLUTION ONLINE 3D ENVIRONMENTAL MONITORING Yun Zhang, Pingping Xie, Hui Li Department of Geodesy and Geomatics Engineering, University of New Brunswick Fredericton,

More information

Generation of Spatial Information by Digital Photogrammetry Technique Using Objects Constraints

Generation of Spatial Information by Digital Photogrammetry Technique Using Objects Constraints Generation of Spatial nformation by Digital Photogrammetry Technique Using bjects onstraints Author: Borislav D. Marinov UAEG Sofia BULGARA FG Working Week 2015 1 ABSTRAT (1) The aim of the research is

More information

Creating, balancing and mosaicing Orthophotos

Creating, balancing and mosaicing Orthophotos Creating, balancing and mosaicing Orthophotos Wizards Map production 3D presentations Annotation Orthophoto Surface gridding Contouring Image mosaicing Data compression Geocoding Spatial analysis Raster

More information

REGISTRATION OF AIRBORNE LASER DATA TO SURFACES GENERATED BY PHOTOGRAMMETRIC MEANS. Y. Postolov, A. Krupnik, K. McIntosh

REGISTRATION OF AIRBORNE LASER DATA TO SURFACES GENERATED BY PHOTOGRAMMETRIC MEANS. Y. Postolov, A. Krupnik, K. McIntosh REGISTRATION OF AIRBORNE LASER DATA TO SURFACES GENERATED BY PHOTOGRAMMETRIC MEANS Y. Postolov, A. Krupnik, K. McIntosh Department of Civil Engineering, Technion Israel Institute of Technology, Haifa,

More information

Camera Calibration for a Robust Omni-directional Photogrammetry System

Camera Calibration for a Robust Omni-directional Photogrammetry System Camera Calibration for a Robust Omni-directional Photogrammetry System Fuad Khan 1, Michael Chapman 2, Jonathan Li 3 1 Immersive Media Corporation Calgary, Alberta, Canada 2 Ryerson University Toronto,

More information

UP TO DATE DSM GENERATION USING HIGH RESOLUTION SATELLITE IMAGE DATA

UP TO DATE DSM GENERATION USING HIGH RESOLUTION SATELLITE IMAGE DATA UP TO DATE DSM GENERATION USING HIGH RESOLUTION SATELLITE IMAGE DATA K. Wolff*, A. Gruen Institute of Geodesy and Photogrammetry, ETH Zurich Wolfgang-Pauli-Str. 15, CH-8093 Zurich, Switzerland (wolff,

More information

LPS Project Manager User s Guide. November 2009

LPS Project Manager User s Guide. November 2009 LPS Project Manager User s Guide November 2009 Copyright 2009 ERDAS, Inc. All rights reserved. Printed in the United States of America. The information contained in this document is the exclusive property

More information

APPLICATION OF DIGITAL PHOTOGRAMMETRY AND AUTOCAD TO SUPPORT OF HISTORICAL BUILDINGS

APPLICATION OF DIGITAL PHOTOGRAMMETRY AND AUTOCAD TO SUPPORT OF HISTORICAL BUILDINGS APPLICATION OF DIGITAL PHOTOGRAMMETRY AND AUTOCAD TO SUPPORT OF HISTORICAL BUILDINGS SEYED YOUSEF SADJADI Department of Geography and Geomatics Centre for Geosciences University of Glasgow University Avenue,

More information

IMAGINE EXPANSION PACK Extend the Power of ERDAS IMAGINE

IMAGINE EXPANSION PACK Extend the Power of ERDAS IMAGINE IMAGINE EXPANSION PACK Extend the Power of ERDAS IMAGINE IMAGINE EXPANSION PACK IMAGINE Expansion Pack is a collection of functionality to extend the utility of ERDAS IMAGINE. It includes 3D visualization

More information

EVALUATION OF WORLDVIEW-1 STEREO SCENES AND RELATED 3D PRODUCTS

EVALUATION OF WORLDVIEW-1 STEREO SCENES AND RELATED 3D PRODUCTS EVALUATION OF WORLDVIEW-1 STEREO SCENES AND RELATED 3D PRODUCTS Daniela POLI, Kirsten WOLFF, Armin GRUEN Swiss Federal Institute of Technology Institute of Geodesy and Photogrammetry Wolfgang-Pauli-Strasse

More information

Merging LiDAR Data with Softcopy Photogrammetry Data

Merging LiDAR Data with Softcopy Photogrammetry Data Merging LiDAR Data with Softcopy Photogrammetry Data Cindy McCallum WisDOT\Bureau of Technical Services Surveying & Mapping Section Photogrammetry Unit Overview Terms and processes Why use data from LiDAR

More information

Enhancing photogrammetric 3d city models with procedural modeling techniques for urban planning support

Enhancing photogrammetric 3d city models with procedural modeling techniques for urban planning support IOP Conference Series: Earth and Environmental Science OPEN ACCESS Enhancing photogrammetric 3d city models with procedural modeling techniques for urban planning support To cite this article: S Schubiger-Banz

More information

CREATING CUSTOMIZED SPATIAL MODELS WITH POINT CLOUDS USING SPATIAL MODELER OPERATORS TO PROCESS POINT CLOUDS IN IMAGINE 2014

CREATING CUSTOMIZED SPATIAL MODELS WITH POINT CLOUDS USING SPATIAL MODELER OPERATORS TO PROCESS POINT CLOUDS IN IMAGINE 2014 CREATING CUSTOMIZED SPATIAL MODELS WITH POINT CLOUDS USING SPATIAL MODELER OPERATORS TO PROCESS POINT CLOUDS IN IMAGINE 2014 White Paper December 22, 2016 Contents 1. Introduction... 3 2. ERDAS IMAGINE

More information

Presented at the FIG Congress 2018, May 6-11, 2018 in Istanbul, Turkey

Presented at the FIG Congress 2018, May 6-11, 2018 in Istanbul, Turkey Presented at the FIG Congress 2018, May 6-11, 2018 in Istanbul, Turkey Evangelos MALTEZOS, Charalabos IOANNIDIS, Anastasios DOULAMIS and Nikolaos DOULAMIS Laboratory of Photogrammetry, School of Rural

More information

3D GIS MODELING APPLICATION FOR DEVELOPING THE BUTUAN CITY 3D MODEL

3D GIS MODELING APPLICATION FOR DEVELOPING THE BUTUAN CITY 3D MODEL 3D GIS MODELING APPLICATION FOR DEVELOPING THE BUTUAN CITY 3D MODEL Alexander T. Demetillo, Michelle V. Japitana and Peter John A. Galamiton CLAIMS-GIS Project, College of Engineering and Information Technology,

More information

INTEGRATING PHOTOGRAMMETRIC TECHNOLOGIES AND GEODETIC METHODS FOR 3D MODELING

INTEGRATING PHOTOGRAMMETRIC TECHNOLOGIES AND GEODETIC METHODS FOR 3D MODELING INTEGRATING PHOTOGRAMMETRIC TECHNOLOGIES AND GEODETIC METHODS FOR 3D MODELING Georgeta Pop Faculty of Geodesy, Geodesy and Photogrammetry Department, Technical University of Civil Engineering Bucharest,

More information

TERRESTRIAL LASER SCANNER DATA PROCESSING

TERRESTRIAL LASER SCANNER DATA PROCESSING TERRESTRIAL LASER SCANNER DATA PROCESSING L. Bornaz (*), F. Rinaudo (*) (*) Politecnico di Torino - Dipartimento di Georisorse e Territorio C.so Duca degli Abruzzi, 24 10129 Torino Tel. +39.011.564.7687

More information

PREPARATIONS FOR THE ON-ORBIT GEOMETRIC CALIBRATION OF THE ORBVIEW 3 AND 4 SATELLITES

PREPARATIONS FOR THE ON-ORBIT GEOMETRIC CALIBRATION OF THE ORBVIEW 3 AND 4 SATELLITES PREPARATIONS FOR THE ON-ORBIT GEOMETRIC CALIBRATION OF THE ORBVIEW 3 AND 4 SATELLITES David Mulawa, Ph.D. ORBIMAGE mulawa.david@orbimage.com KEY WORDS: Geometric, Camera, Calibration, and Satellite ABSTRACT

More information

3D Visualization through Planar Pattern Based Augmented Reality

3D Visualization through Planar Pattern Based Augmented Reality NATIONAL TECHNICAL UNIVERSITY OF ATHENS SCHOOL OF RURAL AND SURVEYING ENGINEERS DEPARTMENT OF TOPOGRAPHY LABORATORY OF PHOTOGRAMMETRY 3D Visualization through Planar Pattern Based Augmented Reality Dr.

More information

High Definition Modeling of Calw, Badstrasse and its Google Earth Integration

High Definition Modeling of Calw, Badstrasse and its Google Earth Integration Master Thesis Yuanting LI High Definition Modeling of Calw, Badstrasse and its Google Earth Integration Duration of the Thesis: 6 months Completion: July, 2014 Supervisors: Prof.Dr.-Ing.Dieter Fritsch

More information

Video Georegistration: Key Challenges. Steve Blask Harris Corporation GCSD Melbourne, FL 32934

Video Georegistration: Key Challenges. Steve Blask Harris Corporation GCSD Melbourne, FL 32934 Video Georegistration: Key Challenges Steve Blask sblask@harris.com Harris Corporation GCSD Melbourne, FL 32934 Definitions Registration: image to image alignment Find pixel-to-pixel correspondences between

More information

Exterior Orientation Parameters

Exterior Orientation Parameters Exterior Orientation Parameters PERS 12/2001 pp 1321-1332 Karsten Jacobsen, Institute for Photogrammetry and GeoInformation, University of Hannover, Germany The georeference of any photogrammetric product

More information

Leica Photogrammetry Suite Automatic Terrain Extraction

Leica Photogrammetry Suite Automatic Terrain Extraction Leica Photogrammetry Suite Automatic Terrain Extraction Copyright 2006 Leica Geosystems Geospatial Imaging, LLC All rights reserved. Printed in the United States of America. The information contained in

More information

Photogrammetry: DTM Extraction & Editing

Photogrammetry: DTM Extraction & Editing Photogrammetry: DTM Extraction & Editing Review of terms Vertical aerial photograph Perspective center Exposure station Fiducial marks Principle point Air base (Exposure Station) Digital Photogrammetry:

More information

TRAINING MATERIAL HOW TO OPTIMIZE ACCURACY WITH CORRELATOR3D

TRAINING MATERIAL HOW TO OPTIMIZE ACCURACY WITH CORRELATOR3D TRAINING MATERIAL WITH CORRELATOR3D Page2 Contents 1. UNDERSTANDING INPUT DATA REQUIREMENTS... 4 1.1 What is Aerial Triangulation?... 4 1.2 Recommended Flight Configuration... 4 1.3 Data Requirements for

More information

3D CITY MODELLING WITH CYBERCITY-MODELER

3D CITY MODELLING WITH CYBERCITY-MODELER 1 3D CITY MODELLING WITH CYBERCITY-MODELER Kilian Ulm 1 and Daniela Poli 1 1. CyberCity AG, Zurich, Switzerland, (kilian.ulm, daniela.poli)@cybercity.tv ABSTRACT 3D city models using stereo aerial-/satellite

More information

EVOLUTION OF POINT CLOUD

EVOLUTION OF POINT CLOUD Figure 1: Left and right images of a stereo pair and the disparity map (right) showing the differences of each pixel in the right and left image. (source: https://stackoverflow.com/questions/17607312/difference-between-disparity-map-and-disparity-image-in-stereo-matching)

More information

Texturing Techniques in 3D City Modeling

Texturing Techniques in 3D City Modeling Texturing Techniques in 3D City Modeling 1 İdris Kahraman, 2 İsmail Rakıp Karaş, Faculty of Engineering, Department of Computer Engineering, Karabuk University, Turkey 1 idriskahraman@karabuk.edu.tr, 2

More information

3D BUILDINGS MODELLING BASED ON A COMBINATION OF TECHNIQUES AND METHODOLOGIES

3D BUILDINGS MODELLING BASED ON A COMBINATION OF TECHNIQUES AND METHODOLOGIES 3D BUILDINGS MODELLING BASED ON A COMBINATION OF TECHNIQUES AND METHODOLOGIES Georgeta Pop (Manea), Alexander Bucksch, Ben Gorte Delft Technical University, Department of Earth Observation and Space Systems,

More information

DEVELOPMENT OF AN EDUCATIONAL SOFTWARE SYSTEM FOR THE DIGITAL MONOPLOTTING

DEVELOPMENT OF AN EDUCATIONAL SOFTWARE SYSTEM FOR THE DIGITAL MONOPLOTTING DEVELOPMENT OF AN EDUCATIONAL SOFTWARE SYSTEM FOR THE DIGITAL MONOPLOTTING Matthias Fluehler a, Jana Niederoest b, Devrim Akca b, * a Trigonet AG, Spannortstrasse 5, 6003 Luzern, Switzerland m.fluehler@bluewin.ch

More information

3D Building Generalisation and Visualisation

3D Building Generalisation and Visualisation Photogrammetric Week '03 Dieter Fritsch (Ed.) Wichmann Verlag, Heidelberg, 2003 Kada 29 3D Building Generalisation and Visualisation MARTIN KADA, Institute for Photogrammetry (ifp), University of Stuttgart

More information

OPERATION MANUAL FOR DTM & ORTHOPHOTO

OPERATION MANUAL FOR DTM & ORTHOPHOTO BANGLADESH DIGITAL MAPPING ASSISTANCE PROJECT (BDMAP) OPERATION MANUAL FOR DTM & ORTHOPHOTO AUGUST 2011 VERSION 1 Introduction 1. General This Operation Manual is prepared by officers of Survey of Bangladesh

More information

Dynamic 3D representation of information using low cost Cloud ready Technologies

Dynamic 3D representation of information using low cost Cloud ready Technologies National Technical University Of Athens School of Rural and Surveying Engineering Laboratory of Photogrammetry Dynamic 3D representation of information using low cost Cloud ready Technologies George MOURAFETIS,

More information

Trimble VISION Positions from Pictures

Trimble VISION Positions from Pictures Trimble VISION Positions from Pictures This session will cover What Is Trimble VISION? Trimble VISION Portfolio What Do you Need? How Does It Work & How Accurate Is It? Applications Resources Trimble VISION

More information

CONSISTENT COLOR RESAMPLE IN DIGITAL ORTHOPHOTO PRODUCTION INTRODUCTION

CONSISTENT COLOR RESAMPLE IN DIGITAL ORTHOPHOTO PRODUCTION INTRODUCTION CONSISTENT COLOR RESAMPLE IN DIGITAL ORTHOPHOTO PRODUCTION Yaron Katzil 1, Yerach Doytsher 2 Mapping and Geo-Information Engineering Faculty of Civil and Environmental Engineering Technion - Israel Institute

More information

Thomas Labe. University ofbonn. A program for the automatic exterior orientation called AMOR was developed by Wolfgang

Thomas Labe. University ofbonn. A program for the automatic exterior orientation called AMOR was developed by Wolfgang Contributions to the OEEPE-Test on Automatic Orientation of Aerial Images, Task A - Experiences with AMOR Thomas Labe Institute of Photogrammetry University ofbonn laebe@ipb.uni-bonn.de (in: OEEPE Publication

More information

BUILDING MODEL RECONSTRUCTION FROM DATA INTEGRATION INTRODUCTION

BUILDING MODEL RECONSTRUCTION FROM DATA INTEGRATION INTRODUCTION BUILDING MODEL RECONSTRUCTION FROM DATA INTEGRATION Ruijin Ma Department Of Civil Engineering Technology SUNY-Alfred Alfred, NY 14802 mar@alfredstate.edu ABSTRACT Building model reconstruction has been

More information

Automated Extraction of Buildings from Aerial LiDAR Point Cloud and Digital Imaging Datasets for 3D Cadastre - Preliminary Results

Automated Extraction of Buildings from Aerial LiDAR Point Cloud and Digital Imaging Datasets for 3D Cadastre - Preliminary Results Automated Extraction of Buildings from Aerial LiDAR Point Cloud and Digital Imaging Datasets for 3D Pankaj Kumar 1*, Alias Abdul Rahman 1 and Gurcan Buyuksalih 2 ¹Department of Geoinformation Universiti

More information

AUTOMATIC EXTRACTION OF BUILDING ROOFS FROM PICTOMETRY S ORTHOGONAL AND OBLIQUE IMAGES

AUTOMATIC EXTRACTION OF BUILDING ROOFS FROM PICTOMETRY S ORTHOGONAL AND OBLIQUE IMAGES AUTOMATIC EXTRACTION OF BUILDING ROOFS FROM PICTOMETRY S ORTHOGONAL AND OBLIQUE IMAGES Yandong Wang Pictometry International Corp. Suite A, 100 Town Centre Dr., Rochester, NY14623, the United States yandong.wang@pictometry.com

More information

A SYSTEM OF THE SHADOW DETECTION AND SHADOW REMOVAL FOR HIGH RESOLUTION CITY AERIAL PHOTO

A SYSTEM OF THE SHADOW DETECTION AND SHADOW REMOVAL FOR HIGH RESOLUTION CITY AERIAL PHOTO A SYSTEM OF THE SHADOW DETECTION AND SHADOW REMOVAL FOR HIGH RESOLUTION CITY AERIAL PHOTO Yan Li a, Tadashi Sasagawa b, Peng Gong a,c a International Institute for Earth System Science, Nanjing University,

More information

The Accuracy of Determining the Volumes Using Close Range Photogrammetry

The Accuracy of Determining the Volumes Using Close Range Photogrammetry IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 2 Ver. VII (Mar - Apr. 2015), PP 10-15 www.iosrjournals.org The Accuracy of Determining

More information

Selective 4D modelling framework for spatialtemporal Land Information Management System

Selective 4D modelling framework for spatialtemporal Land Information Management System Selective 4D modelling framework for spatialtemporal Land Information Management System A. Doulamis, S. Soile, N. Doulamis, C. Chrisouli, N. Grammalidis, K. Dimitropoulos C. Manesis, C. Potsiou, C. Ioannidis

More information

IMAGE MATCHING TOWARDS MATURITY

IMAGE MATCHING TOWARDS MATURITY IMAGE MATCHING TOWARDS MATURITY Dimitris P. SKARLATOS Department of Surveying, National Technical University, GR-1578 Athens, Greece dskarlat@survey.ntua.gr Working Group III/2 KEY WORDS: Image Matching,

More information

AUTOMATIC GENERATION OF DIGITAL BUILDING MODELS FOR COMPLEX STRUCTURES FROM LIDAR DATA

AUTOMATIC GENERATION OF DIGITAL BUILDING MODELS FOR COMPLEX STRUCTURES FROM LIDAR DATA AUTOMATIC GENERATION OF DIGITAL BUILDING MODELS FOR COMPLEX STRUCTURES FROM LIDAR DATA Changjae Kim a, Ayman Habib a, *, Yu-Chuan Chang a a Geomatics Engineering, University of Calgary, Canada - habib@geomatics.ucalgary.ca,

More information

DIGITAL PHOTOGRAMMETRY, DEVELOPMENTS AT ORDNANCE SURVEY

DIGITAL PHOTOGRAMMETRY, DEVELOPMENTS AT ORDNANCE SURVEY DIGITAL PHOTOGRAMMETRY, DEVELOPMENTS AT ORDNANCE SURVEY Lynne ALLAN *, David HOLLAND ** Ordnance Survey, Southampton, GB * lallan@ordsvy.gov.uk ** dholland@ordsvy.gov.uk KEY WORDS: Photogrammetry, Digital,

More information

GeoShow3D. Product Features. Product Information Number: Persona de contacto:

GeoShow3D. Product Features. Product Information Number: Persona de contacto: Product Information Number: 0001 2.7.2004 Persona de contacto: info@geovirtual.com GeoShow3D Rambla de Cataluña 35, principal. E-08007 Barcelona Tel. +34 934 872 144 Fax +34 934 875 809 Spain. www.geovirtual.com

More information

BUILDING DETECTION AND STRUCTURE LINE EXTRACTION FROM AIRBORNE LIDAR DATA

BUILDING DETECTION AND STRUCTURE LINE EXTRACTION FROM AIRBORNE LIDAR DATA BUILDING DETECTION AND STRUCTURE LINE EXTRACTION FROM AIRBORNE LIDAR DATA C. K. Wang a,, P.H. Hsu a, * a Dept. of Geomatics, National Cheng Kung University, No.1, University Road, Tainan 701, Taiwan. China-

More information

A NEW STRATEGY FOR DSM GENERATION FROM HIGH RESOLUTION STEREO SATELLITE IMAGES BASED ON CONTROL NETWORK INTEREST POINT MATCHING

A NEW STRATEGY FOR DSM GENERATION FROM HIGH RESOLUTION STEREO SATELLITE IMAGES BASED ON CONTROL NETWORK INTEREST POINT MATCHING A NEW STRATEGY FOR DSM GENERATION FROM HIGH RESOLUTION STEREO SATELLITE IMAGES BASED ON CONTROL NETWORK INTEREST POINT MATCHING Z. Xiong a, Y. Zhang a a Department of Geodesy & Geomatics Engineering, University

More information

Experiments on Generation of 3D Virtual Geographic Environment Based on Laser Scanning Technique

Experiments on Generation of 3D Virtual Geographic Environment Based on Laser Scanning Technique Experiments on Generation of 3D Virtual Geographic Environment Based on Laser Scanning Technique Jie Du 1, Fumio Yamazaki 2 Xiaoyong Chen 3 Apisit Eiumnoh 4, Michiro Kusanagi 3, R.P. Shrestha 4 1 School

More information

USING THE VIRTUAL REALITY SYSTEM IN THE DEVELOPMENT OF AIRCRAFT ENGINE

USING THE VIRTUAL REALITY SYSTEM IN THE DEVELOPMENT OF AIRCRAFT ENGINE IN THE DEVELOPMENT OF AIRCRAFT ENGINE I. Svadkovskiy, L. Zhemuranova Central Institute of Aviation Motors, Russia igor@ciam.ru, lzhemuranova@ciam.ru Keywords: VR, jet engines development, virtual prototype

More information