Quality Report Generated with version

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1 Quality Report Generated with version Important: Click on the different icons for: Help to analyze the results in the Quality Report Additional information about the feature Click here for additional tips to analyze the Quality Report Summary Project Processed Camera Model Name Average Ground Sampling Distance (GSD) mining_quarry 2015-Jan-28 16:45:59 CanonIXUS220HS_4.3_4000x3000 (RGB) 8.67 cm / 3.41 in Area Covered km2 / ha / sq. mi. / acres WGS84 WGS84 WGS84 / UTM zone 32N full Aerial nadir 1 optimize externals and all internals 17m:49s Image Coordinate System Ground Control Point (GCP) Coordinate System Output Coordinate System Processing Type Feature Extraction Image Scale Camera Model Parameter Optimization Time for Initial Processing (without report) Quality Check Images median of keypoints per image Dataset 127 out of 127 images calibrated (100%), all images enabled Camera Optimization 0.44% relative difference between initial and final focal length Matching median of matches per calibrated image Georeferencing 7 GCPs (7 3D), mean error = m Preview Figure 1: Orthomosaic and the corresponding sparse Digital Surface Model (DSM) before densification. Calibration Details Number of Calibrated Images Number of Geolocated Images 127 out of out of 127

2 Initial Image Positions Figure 2: Top view of the initial image position. The green line follows the position of the images in time starting from the large blue dot. Computed Image/GCPs/Manual Tie Points Positions Figure 3: Offset between initial (blue dots) and computed (green dots) image positions as well as the offset between the GCPs initial positions (blue crosses) and their computed positions (green crosses) in the top-view (XY plane), front-view (XZ plane), and side-view (YZ plane). Overlap

3 Number of overlapping images: Figure 4: Number of overlapping images computed for each pixel of the orthomosaic. Red and yellow areas indicate low overlap for which poor results may be generated. Green areas indicate an overlap of over 5 images for every pixel. Good quality results will be generated as long as the number of keypoint matches is also sufficient for these areas (see Figure 5 for keypoint matches). Bundle Block Adjustment Details Number of 2D Keypoint Observations for Bundle Block Adjustment Number of 3D Points for Bundle Block Adjustment Mean Reprojection Error [pixels] Internal Camera Parameters CanonIXUS220HS_4.3_4000x3000 (RGB). Sensor Dimensions: 6.2 [mm] x 4.65 [mm] EXIF ID: CanonIXUS220HS_4.3_4000x3000 Focal Length Principal Point x Principal Point y R1 R2 R3 T1 T2 Initial Values [pixel] [mm] [pixel] [mm] [pixel] [mm] Optimized Values [pixel] [mm] [pixel] [mm] [pixel] [mm] D Keypoints Table Number of 2D Keypoints per Image Number of Matched 2D Keypoints per Image Median Min Max Mean D Points from 2D Keypoint Matches Number of 3D Points Observed In 2 Images In 3 Images In 4 Images In 5 Images In 6 Images In 7 Images 7209 In 8 Images 5076 In 9 Images 3655 In 10 Images 2610 In 11 Images 2009 In 12 Images 1566

4 In 13 Images 1156 In 14 Images 881 In 15 Images 820 In 16 Images 609 In 17 Images 490 In 18 Images 457 In 19 Images 388 In 20 Images 332 In 21 Images 286 In 22 Images 255 In 23 Images 198 In 24 Images 156 In 25 Images 158 In 26 Images 155 In 27 Images 139 In 28 Images 113 In 29 Images 80 In 30 Images 79 In 31 Images 62 In 32 Images 36 In 33 Images 33 In 34 Images 37 In 35 Images 22 In 36 Images 12 In 37 Images 12 In 38 Images 10 In 39 Images 11 In 40 Images 2 In 41 Images 1 In 42 Images 1 In 43 Images 1 In 46 Images 1 3D Points from 2D Keypoint Matches Number of matches Figure 5: Top view of the image computed positions with a link between matching images. The darkness of the links indicates the number of matched 2D keypoints between the images. Bright links indicate weak links and require manual tie points or more images. Geolocation Details Ground Control Points GCP Name Accuracy XY/Z [m] Error X [m] Error Y [m] Error Z [m] Projection Error [pixel] Verified/Marked 9011 (3D) 0.020/ / 9

5 9001 (3D) 0.020/ / (3D) 0.020/ / (3D) 0.020/ / (3D) 0.020/ / (3D) 0.020/ / (3D) 0.020/ / 10 Mean Sigma RMS Error Localisation accuracy per GCP and mean errors in the three coordinate directions. The last column counts the number of images where the GCP has been automatically verified vs. manually marked. Absolute Geolocation Variance 0 out of 127 geolocated and calibrated images have been labeled as inaccurate. Min Error [m] Max Error [m] Geolocation Error X [%] Geolocation Error Y [%] Geolocation Error Z [%] Mean Sigma RMS Error Min Error and Max Error represent geolocation error intervals between -1.5 and 1.5 times the maximum accuracy of all the images. Columns X, Y, Z show the percentage of images with geolocation errors within the predefined error intervals. The geolocation error is the difference between the intial and computed image positions. Note that the image geolocation errors do not correspond to the accuracy of the observed 3D points. Relative Geolocation Variance Accuracy [%] Images X [%] Images Y [%] Images Z [%] Mean Accuracy Sigma Accuracy Images X, Y, Z represent the percentage of images with a geolocation error in X, Y, Z smaller than the given percentage of their corresponding accuracy.

6 Georeference Verification GCP Name: 9011 ( , , ) IMG_1146.JPG IMG_1167.JPG IMG_1168.JPG IMG_1169.JPG IMG_1170.JPG IMG_1194.JPG IMG_1195.JPG IMG_1196.JPG IMG_1197.JPG GCP 9011 was not marked in the following images IMG_1147.JPG IMG_1166.JPG IMG_1192.JPG IMG_1193.JPG IMG_1198.JPG IMG_1221.JPG GCP Name: 9001 ( , , ) IMG_1154.JPG IMG_1155.JPG IMG_1158.JPG IMG_1159.JPG IMG_1160.JPG IMG_1178.JPG IMG_1179.JPG GCP 9001 was not marked in the following images IMG_1177.JPG IMG_1183.JPG IMG_1184.JPG

7 GCP Name: 9002 ( , , ) IMG_1154.JPG IMG_1155.JPG IMG_1156.JPG IMG_1157.JPG GCP 9002 was not marked in the following images IMG_1183.JPG GCP Name: 9004 ( , , ) IMG_1182.JPG IMG_1208.JPG IMG_1209.JPG IMG_1210.JPG IMG_1211.JPG IMG_1235.JPG IMG_1236.JPG IMG_1237.JPG IMG_1238.JPG GCP 9004 was not marked in the following images IMG_1180.JPG IMG_1181.JPG GCP Name: 9017 ( , , ) IMG_1221.JPG IMG_1222.JPG IMG_1223.JPG IMG_1224.JPG IMG_1225.JPG IMG_1226.JPG IMG_1248.JPG IMG_1249.JPG IMG_1250.JPG IMG_1251.JPG

8 GCP 9017 was not marked in the following images IMG_1165.JPG IMG_1191.JPG IMG_1192.JPG IMG_1193.JPG IMG_1194.JPG IMG_1195.JPG GCP Name: 9012 ( , , ) IMG_1221.JPG IMG_1222.JPG IMG_1225.JPG IMG_1226.JPG IMG_1227.JPG IMG_1247.JPG IMG_1248.JPG IMG_1249.JPG IMG_1250.JPG IMG_1251.JPG IMG_1252.JPG IMG_1267.JPG IMG_1268.JPG IMG_1269.JPG GCP 9012 was not marked in the following images IMG_1190.JPG IMG_1191.JPG IMG_1192.JPG IMG_1193.JPG IMG_1194.JPG IMG_1198.JPG

9 GCP Name: 9016 ( , , ) IMG_1228.JPG IMG_1245.JPG IMG_1246.JPG IMG_1253.JPG IMG_1254.JPG IMG_1265.JPG IMG_1266.JPG IMG_1267.JPG IMG_1271.JPG IMG_1272.JPG GCP 9016 was not marked in the following images IMG_1216.JPG IMG_1217.JPG IMG_1218.JPG IMG_1219.JPG IMG_1220.JPG IMG_1227.JPG Figure 7: Images in which GCPs have been marked (yellow circle) and in which their computed 3D points have been projected (green circle). A green circle outside of the yellow circle indicates either an accuracy issue or a GCP issue. Point Cloud Densification details Summary Processing Type aerial nadir Image Scale 1/2 (half image size, default) Point Density optimal Minimum Number of Matches 2 Use Densification Area yes Use Annotations yes Time for Densification (without report and 3D textured mesh) 18m:51s Results Number of 3D Densified Points Average Density (per m 3 ) 6.12