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See Quality Report Help for detailed explanations. Generated with version 0.9.33
Quality ReportSummary
Project: mining_quarry_switzerlandProcessed: 2013-Dec-23 13:57:41Camera name: CanonIXUS220HS_4.3_4000x3000Average Ground Sampling Distance (GSD): 9.11 cm
Area covered: 0.5151 km2 / 51.5105 ha / 0.199 sq. mi.Image coordinate system: WGS84Ground Control Point (GCP) coordinate system: WGS84Output coordinate system: WGS84 / UTM zone 32NProcessing type: full (scale 1) aerialTime for Initial Processing (without report): 22m:06s
Quality Check
Images: median of 31313 keypoints per image
Dataset: 127 out of 127 images calibrated (100%), all images enabled
Camera optimization quality: 0.41% relative difference between initial and final focal length
Matching quality: median of 12203 matches per calibrated image
Georeferencing: 7 GCPs, 0.109 m
Preview
Figure 1: Ortho mosaic and the corresponding sparse digital surface model (DSM) before densification.
Calibration detailsNumber of calibrated images: 127 out of 127Number of geotagged images: 127 out of 127
Geotag position
Figure 2: Top view of the geotags. The green line follows the geotags of the images in time starting from the large blue dot.
Optimized camera position
Figure 3: Offset between image geotags (blue dots) and optimized positions (green dots) as well as the offset between the GCPs positions (blue crosses) and theiroptimized positions (green crosses) in the top-view (XY plane), front-view (XZ plane) and side-view (YZ plane).
Overlap
Number of overlapping images: 1 2 3 4 5+
Figure 4: Overlapping score computed for each pixel of the orthomosaic. Red indicates areas where the overlap between the images is too low and could lead to poor results. For good quality results, the overlap should be over 5
images (green) for every pixel of the mosaic.
Bundle Block Adjustment detailsnumber total keypoint observations (automatic tie points) for bundle block adjustment 1519636number total 3D points for bundle block adjustment 445495mean reprojection error 0.165335 [pixels]
Internal Camera Parameters CanonIXUS220HS_4.3_4000x3000. Sensor dimensions: 6.2 [mm] x 4.65 [mm]
EXIF ID: CanonIXUS220HS_4.3_4000x3000
Focallength
Principalpoint x
Principalpoint y R1 R2 R3 T1 T2
initialvalues
2839.640 [pix]4.400 [mm]
2019.760 [pix]3.129 [mm]
1547.000 [pix]2.397 [mm] -0.043 0.026 -0.006 0.001 0.002
optimizedvalues
2827.993 [pix]4.382 [mm]
2001.663 [pix]3.101 [mm]
1504.098 [pix]2.330 [mm] -0.039 0.022 -0.007 0.000 0.000
2D Keypoints Table
Number of 2D keypoints per image Number of matched 2D keypoints per imageMedian 31313 12203Min 21891 1257Max 51071 20549Mean 33202 11966
3D points from 2D keypoints matches
Number of 3D points observedIn 2 images 277185In 3 images 70063In 4 images 30751In 5 images 16840In 6 images 10910In 7 images 7910In 8 images 5790In 9 images 4492In 10 images 3448In 11 images 2752In 12 images 2226In 13 images 1770In 14 images 1516In 15 images 1324In 16 images 1114In 17 images 947In 18 images 896In 19 images 721In 20 images 675In 21 images 570In 22 images 529In 23 images 443In 24 images 398In 25 images 375In 26 images 325In 27 images 289In 28 images 244In 29 images 201In 30 images 170In 31 images 148In 32 images 128In 33 images 98In 34 images 86In 35 images 66In 36 images 36In 37 images 14In 38 images 15In 39 images 16In 40 images 5In 41 images 2In 42 images 2In 44 images 3In 45 images 1In 46 images 1
GCP name: 9001(311470.8554,5169936.0317,573.3250)
GCP name: 9002(311412.9954,5169998.7061,568.7260)
In 46 images 1
2D Keypoints Graph
Number of matches
25 222 444 666 888 1111 1333 1555 1777 2000
Figure 5: Top view of the geotags with a link between matching images. The darkness of the links indicates the number of matched 2D keypoints between theimages. Bright links indicate low confidence and would require more overlap between the images or better quality images.
Most visible 2D keypoints
Figure 6: Cropped area of 1 3D points arising from 46 2D keypoints. Each cropped area should represent the same 3D object.
Geo-location and Ground Control PointsGCP name tolerance [m] error X [m] error Y [m] error Z [m] projection error [pixel] verified/ measured3D GCP: 9001 0.020 -0.014 -0.124 0.227 0.859 7 / 73D GCP: 9002 0.020 0.032 -0.102 0.290 0.748 4 / 43D GCP: 9004 0.020 -0.035 -0.022 -0.146 1.097 9 / 93D GCP: 9011 0.020 0.026 -0.104 0.136 1.134 9 / 93D GCP: 9016 0.020 -0.041 0.046 -0.397 1.072 10 / 103D GCP: 9017 0.020 -0.006 0.002 -0.261 0.984 10 / 103D GCP: 9012 0.020 0.021 0.016 0.047 1.021 14 / 14Mean -0.002411 -0.040931 -0.015074Sigma 0.027374 0.062947 0.239566
Localisation accuracy of the individual GCP, their mean error distance and the mean errors in the three coordinate directions.The last column counts the number ofimages where the GCP has been measured (clicked on the images) and on how many of them have been automatically verified.
0 out of 0 GCPs have been labeled as inaccurate (see Figure below).
Geotag variance
Geotag localisation variance sigma mLongitude direction (x) 2.3519Latitude direction (y) 1.1777Altitude direction (z) 48.2533
Geotag variance: The difference between the image geotags and the optimized camera positions. Please note that these images geotag errors do not correspond tothe accuracy on the observed 3D points.
Ground control points
IMG_1154.JPGIMG_1155.JPGIMG_1158.JPGIMG_1159.JPGIMG_1160.JPGIMG_1178.JPGIMG_1179.JPG
GCP 9001 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.IMG_1177.JPGIMG_1183.JPGIMG_1184.JPG
IMG_1154.JPGIMG_1155.JPGIMG_1156.JPGIMG_1157.JPG
GCP 9002 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.
IMG_1183.JPG
GCP name: 9004(311255.0442,5169764.0761,565.6990)
IMG_1182.JPGIMG_1208.JPGIMG_1209.JPGIMG_1210.JPGIMG_1211.JPGIMG_1235.JPGIMG_1236.JPGIMG_1237.JPGIMG_1238.JPG
GCP 9004 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.IMG_1180.JPGIMG_1181.JPG
GCP name: 9011(312064.3876,5169799.3607,473.3290)
IMG_1146.JPGIMG_1167.JPGIMG_1168.JPGIMG_1169.JPGIMG_1170.JPGIMG_1194.JPGIMG_1195.JPGIMG_1196.JPGIMG_1197.JPG
GCP 9011 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.
GCP name: 9016(311750.1153,5169550.3215,455.2660)
IMG_1228.JPGIMG_1245.JPGIMG_1246.JPGIMG_1253.JPGIMG_1254.JPGIMG_1265.JPGIMG_1266.JPGIMG_1267.JPGIMG_1271.JPGIMG_1272.JPG
GCP 9016 was not measured in the following images.If the circle is too far away from the real GCP position,
IMG_1147.JPGIMG_1166.JPGIMG_1192.JPGIMG_1193.JPGIMG_1198.JPGIMG_1221.JPGIMG_1222.JPGIMG_1223.JPGIMG_1224.JPGIMG_1225.JPG
If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.
IMG_1216.JPGIMG_1217.JPGIMG_1218.JPGIMG_1219.JPGIMG_1220.JPGIMG_1227.JPGIMG_1229.JPGIMG_1230.JPGIMG_1243.JPGIMG_1244.JPGIMG_1247.JPGIMG_1251.JPGIMG_1252.JPGIMG_1255.JPGIMG_1264.JPGIMG_1269.JPGIMG_1270.JPG
GCP name: 9017(311974.1539,5169609.1667,465.0260)
IMG_1221.JPGIMG_1222.JPGIMG_1223.JPGIMG_1224.JPGIMG_1225.JPGIMG_1226.JPGIMG_1248.JPGIMG_1249.JPGIMG_1250.JPGIMG_1251.JPG
GCP 9017 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.
IMG_1165.JPGIMG_1191.JPG
GCP name: 9012(311914.7223,5169567.5531,460.8960)
IMG_1221.JPGIMG_1222.JPGIMG_1225.JPGIMG_1226.JPGIMG_1227.JPGIMG_1247.JPGIMG_1248.JPGIMG_1249.JPGIMG_1250.JPGIMG_1251.JPGIMG_1252.JPGIMG_1267.JPGIMG_1268.JPGIMG_1269.JPG
GCP 9012 was not measured in the following images.If the circle is too far away from the real GCP position,this indicates that the GCP should be also measured
(clicked) in this image to improve the accuracy.
IMG_1191.JPGIMG_1192.JPGIMG_1193.JPGIMG_1194.JPGIMG_1195.JPGIMG_1196.JPGIMG_1197.JPGIMG_1198.JPGIMG_1199.JPGIMG_1220.JPGIMG_1227.JPGIMG_1247.JPGIMG_1267.JPGIMG_1268.JPGIMG_1269.JPG
IMG_1190.JPGIMG_1191.JPGIMG_1192.JPGIMG_1193.JPGIMG_1194.JPGIMG_1198.JPGIMG_1219.JPGIMG_1220.JPGIMG_1224.JPGIMG_1228.JPGIMG_1246.JPGIMG_1266.JPGIMG_1270.JPG
Figure 7: Images in which GCPs have been measured (yellow circle) and in which the 3D point have been projected (green circle). A green circle outside of theyellow circle indicates either an accuracy issue or a GCP issue.