Redefining Airborne LiDAR Introduction to RIEGL LMS in Airborne LiDAR

Transcription

1 Redefining Airborne LiDAR Introduction to RIEGL LMS in Airborne LiDAR Andres Vargas Integration Systems Engineer LAGF Mexico City, Mexico September 23th, Airborne Laser Scanning

2 History and Evolution of LiDAR First Laser created May 1960 by Theodore Maiman First Laser-Distance Meter designed by RIEGL 1978 First RIEGL Commercial Airborne system 1996 with the LMS-Q140 First RIEGL Full Waveform Airborne LiDAR 2004 LMS-Q560 First RIEGL Online Waveform Airborne LiDAR 2008 VQ-480 RIEGL Completely Integrated system: LMS-Q1560 RIEGL UAS LiDAR Sensor: VUX-1 2 Airborne Laser Scanning

3 Full Waveform Analysis 3 Airborne Laser Scanning

4 Full Waveform Data Acquisition: Q Series Scanners LMS Q780 LMS Q Airborne Laser Scanning

5 Online Waveform Acquisition: VQ Series Scanners VQ-380i VQ-480i VQ-580 VQ-820-G 5 Airborne Laser Scanning

6 Online Waveform Acquisition: VUX-1 6 Airborne Laser Scanning

7 Dual Channel Laser Scanner System : LMS-Q1560 Extremely fast 800kHz Pulse Repetition Rate Peak Unique dual channel design High point density and best point spacing Forward/backward scanning capabilities Acquisition from widely varying altitudes Flight Altitude up to 15500ft AGL Complete DSS solution integration 7 Airborne Laser Scanning

8 Single Platform Fully Integrated system IMU mounted internally and calibrated to system from factory Long term stable system calibration Compact form factor Multichannel LiDAR integrated with two high resolution cameras tightly packaged for use of single camera port. Simple and Quick installation Mounting Wire rope isolated plate Within stabilized gimbal mount 8 Airborne Laser Scanning

9 Dual Channel Design Rotating polygon Single channel RIEGL LMS-Q780 Rotating polygon Dual channel RIEGL LMS-Q1560 Oscillating mirror Dual laser output Competitive scanners Parallel scan lines Matrix scan Tilted straight scan lines Optimum interleaving independent of acquisition parameters Interleaving zigzagging scans Prone to unfavorable phase conditions 9 Airborne Laser Scanning

10 Scan Pattern Rotating Polygon with two laser sources, innovative forward, backward, and nadir looking capability Tilted straight scan lines Greater coverage at two different scan angles Coverage of both faces of a structure on one pass 60 deg Field of View (FOV) = equals wider swaths 10 Airborne Laser Scanning

11 UAS Sensor System : VUX - 1 Very compact (225 x 180 x 125 mm) Very lightweight (approx. 3.6 kg) High-accuracy ranging based on echo digitization and online waveform processing High laser pulse repetition rate up to 550kHz for fast data acquisition Fast scan speed up to 200 scans / sec. Survey-grade measurement, accuracy / precision 10 / 5 mm Operating flight altitude up to more than 1,000 ft Field of view up to 330 enabling data acquisition in narrow, complex environments Easily mountable to professional UAS/RPAS Internal data storage capability (240 GB SSD) for several hours of data acquisition Low Power consumption, 60W (while scanning) 11 Airborne Laser Scanning

12 VUX-1, UAV Integration Easily mountable to professional UAS Remote control and autonomous operation using RIEGL s RiACQUIRE-Embedded 12 Airborne Laser Scanning

13 VUX-1 Field of View FoV, valleys FoV, urban canyons 13 Airborne Laser Scanning

14 UAS Sensor System : VUX - 1 Example: planned integration of RIEGL VUX-1 with NEA helicopter 14 Airborne Laser Scanning

15 Riegl Software Suite RIEGL Acquisition and Processing Workflow 15 Airborne Laser Scanning

16 RiANALYZE: Original Functionality CPU processing RiANALYZE per CPU thread RiProcess instantiation Typically 8 threads per hyper-threaded quad core CPU Limited by SSD speed not fully utilized Pipeline processing issues CPU thread bottleneck 16

17 RiANALYZE: New GPU Functionality RiANALYZE now takes advantage of GPU parallel processing Parallel processing results in substantial processing time savings 17

18 RiANALYZE: CPU vs GPU Processing 18

19 Conclusions RIEGL has been at the forefront of Airborne LiDAR Technology with Full Waveform, Time of Flight based technology The complete line of scanners meets the needs of diverse range of applications. LMS-Q1560 and VUX-1 continue to push the boundaries of Airborne LiDAR Scanning Who knows what exciting technology will be in store for the future! Thank You for Your Time! 19 Airborne Laser Scanning