puri delta Processing Report 13 March 2021 Survey Data >9 9 8 7 6 5 4 3 2 1 200 m Fig. 1. Camera locations and image overlap. Number of images: 111 Camera stations: 111 Flying altitude: 254 m Tie points: 100,937 Ground resolution: 13.6 cm/pix Projections: 324,748 Coverage area: 1.08 km² Reprojection error: 0.778 pix Camera Model Resolution Focal Length Pixel Size Precalibrated FC6310 (8.8mm) 2736 x 1824 8.8 mm 4.82 x 4.82 μm No FC6310 (8.8mm) 2736 x 1824 8.8 mm 4.82 x 4.82 μm No Table 1. Cameras. Page 2 Camera Calibration 1 pix Fig. 2. Image residuals for FC6310 (8.8mm). FC6310 (8.8mm) 39 images Type Frame Resolution 2736 x 1824 Focal Length 8.8 mm Pixel Size 4.82 x 4.82 μm Value Error F Cx Cy K1 K2 K3 P1 P2 F 1514.56 45 1.00 0.68 -0.98 0.27 -0.87 0.95 0.92 -0.79 Cx 0.753106 0.4 1.00 -0.66 0.15 -0.59 0.65 0.67 -0.53 Cy 18.233 1.1 1.00 -0.27 0.85 -0.93 -0.90 0.80 K1 0.00151673 0.00054 1.00 -0.35 0.34 0.35 -0.55 K2 -0.00341936 0.00047 1.00 -0.98 -0.80 0.69 K3 0.00243733 0.00046 1.00 0.88 -0.76 P1 0.000911053 3e-005 1.00 -0.78 P2 -0.000472265 1.9e-005 1.00 Table 2. Calibration coefficients and correlation matrix. Page 3 Camera Calibration 1 pix Fig. 3. Image residuals for FC6310 (8.8mm). FC6310 (8.8mm) 72 images Type Frame Resolution 2736 x 1824 Focal Length 8.8 mm Pixel Size 4.82 x 4.82 μm Value Error F Cx Cy K1 K2 K3 P1 P2 F 1753.25 33 1.00 0.82 -0.97 0.37 -0.77 0.90 0.88 -0.66 Cx 3.28859 0.49 1.00 -0.79 0.31 -0.64 0.74 0.77 -0.53 Cy 11.1213 0.85 1.00 -0.35 0.75 -0.87 -0.85 0.66 K1 0.00444883 0.00052 1.00 -0.47 0.46 0.48 -0.62 K2 -0.00630155 0.00061 1.00 -0.97 -0.69 0.51 K3 0.00578003 0.00072 1.00 0.80 -0.60 P1 0.00113162 2.5e-005 1.00 -0.65 P2 -0.000489363 1.5e-005 1.00 Table 3. Calibration coefficients and correlation matrix. Page 4 Camera Locations 40 m 32 m 24 m 16 m 8m 0m -8 m -16 m -24 m -32 m -40 m x5 200 m Fig. 4. Camera locations and error estimates. Z error is represented by ellipse color. X,Y errors are represented by ellipse shape. Estimated camera locations are marked with a black dot. X error (m) Y error (m) Z error (m) XY error (m) Total error (m) 1.23685 4.44725 26.868 4.61604 Table 4. Average camera location error. X - Longitude, Y - Latitude, Z - Altitude. Page 5 27.2616 Digital Elevation Model 98 m 54 m 200 m Fig. 5. Reconstructed digital elevation model. Resolution: 54.5 cm/pix Point density: 3.37 points/m² Page 6 Processing Parameters General Cameras Aligned cameras Coordinate system Rotation angles Point Cloud Points RMS reprojection error Max reprojection error Mean key point size Point colors Key points Average tie point multiplicity Depth Maps Count Depth maps generation parameters Quality Filtering mode Processing time Software version Dense Point Cloud Points Point colors Depth maps generation parameters Quality Filtering mode Model Faces Vertices Vertex colors Texture Depth maps generation parameters Quality Filtering mode Processing time Reconstruction parameters Surface type Source data Interpolation Strict volumetric masks Processing time Texturing parameters Mapping mode Blending mode Texture size Enable hole filling Enable ghosting filter UV mapping time Blending time Software version 111 111 W GS 84 (EPSG::4326) Yaw, Pitch, Roll 100,937 of 108,344 0.09648 (0.778237 pix) 0.30675 (16.4298 pix) 7.45905 pix 3 bands, uint8 No 3.37573 111 Medium Mild 16 minutes 55 seconds 1.5.5.9097 5,468,345 3 bands, uint8 Medium Mild 168,737 84,568 3 bands, uint8 4,096 x 4,096, 4 bands, uint8 Medium Mild 16 minutes 55 seconds Arbitrary Depth maps Enabled No 25 minutes 19 seconds Generic Mosaic 4,096 Yes Yes 35 seconds 5 minutes 28 seconds 1.5.5.9097 Page 7 General Tiled Model Texture Depth maps generation parameters Quality Filtering mode Reconstruction parameters Source data Tile size Face count Enable ghosting filter Processing time Software version DEM Size Coordinate system Reconstruction parameters Source data Interpolation Processing time Software version Orthomosaic Size Coordinate system Colors Reconstruction parameters Blending mode Surface Enable hole filling Processing time Software version Software Version Platform 3 bands, uint8 Medium Mild Dense cloud 256 Medium No 14 minutes 20 seconds 1.5.5.9097 2,744 x 2,489 W GS 84 (EPSG::4326) Dense cloud Enabled 10 seconds 1.5.5.9097 8,612 x 7,896 W GS 84 (EPSG::4326) 3 bands, uint8 Mosaic DEM Yes 1 minutes 59 seconds 1.5.5.9097 1.5.5 build 9097 W indows 64 Page 8