Generated with Pix4Dmapper Discovery version 1.4.46 Quality Report 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 beyondtoxics Processed 2016-Sep-03 21:33:52 Camera Model Name FC300X_3.6_4000x3000 (RGB) Average Ground Sampling Distance (GSD) 8.11 cm / 3.19 in Area Covered 1.5418 km 2 / 154.18 ha / 0.5956 sq. mi. / 381.183 acres Image Coordinate System WGS84 Output Coordinate System WGS84 / UTM zone 10N Processing Type full Aerial nadir Feature Extraction Image Scale 1 Camera Model Parameter Optimization optimize externals and all internals Time for Initial Processing (without report) 02h:01m:55s Quality Check Images median of 48753 keypoints per image Dataset 449 out of 449 images calibrated (100%), all images enabled Camera Optimization 5.62% relative difference between initial and final focal length Matching median of 33265 matches per calibrated image Georeferencing no 3D GCP Preview Figure 1: Orthomosaic and the corresponding sparse Digital Surface Model (DSM) before densification.
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Generated with Pix4Dmapper Discovery version 1.4.46
Quality Report
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 beyondtoxicsProcessed 2016-Sep-03 21:33:52Camera Model Name FC300X_3.6_4000x3000 (RGB)Average Ground Sampling Distance (GSD) 8.11 cm / 3.19 in
Area Covered 1.5418 km2 / 154.18 ha / 0.5956 sq. mi. / 381.183 acresImage Coordinate System WGS84Output Coordinate System WGS84 / UTM zone 10NProcessing Type full Aerial nadirFeature Extraction Image Scale 1Camera Model Parameter Optimization optimize externals and all internalsTime for Initial Processing (without report) 02h:01m:55s
Quality Check
Images median of 48753 keypoints per image
Dataset 449 out of 449 images calibrated (100%), all images enabled
Camera Optimization 5.62% relative difference between initial and final focal length
Matching median of 33265 matches per calibrated image
Georeferencing no 3D GCP
Preview
Figure 1: Orthomosaic and the corresponding sparse Digital Surface Model (DSM) before densification.
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) andtheir computed positions (green crosses) in the top-view (XY plane), front-view (XZ plane), and side-view (YZ plane).
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 14339237Number of 3D Points for Bundle Block Adjustment 2871195Mean Reprojection Error [pixels] 0.24575
Internal Camera Parameters
FC300X_3.6_4000x3000 (RGB). Sensor Dimensions: 6.317 [mm] x 4.738 [mm]
Number of matches25 222 444 666 888 1111 1333 1555 1777 2000
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 keypointsbetween the images. Bright links indicate weak links and require manual tie points or more images.
Geolocation Details
Absolute Geolocation Variance
0 out of 449 geolocated and calibrated images have been labeled as inaccurate.
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 thepercentage 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
Relative Geolocation Error Images X [%] Images Y [%] Images Z [%][-1.00, 1.00] 86.41 66.82 100.00[-2.00, 2.00] 99.78 96.21 100.00[-3.00, 3.00] 100.00 100.00 100.00Mean of Geolocation Accuracy 5.000000 5.000000 10.000000Sigma of Geolocation Accuracy 0.000000 0.000000 0.000000
Images X, Y, Z represent the percentage of images with a relative geolocation error in X, Y, Z.
Point Cloud Densification details
Summary
Processing Type aerial nadirImage Scale multiscale, 1/4 (quarter image size, fast)Point Density optimalMinimum Number of Matches 3Use Densification Area yesUse Annotations yesTime for Densification (without report and 3D textured mesh) 01h:21m:22s