Agisoft Metashape
Processing Report
27 September 2020
Survey Data
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100 m
Fig. 1. Camera locations and image overlap.
Number of images: 154 Camera stations: 154
Flying altitude: 129 m Tie points: 61,056
Ground resolution: 15.8 cm/pix Projections: 269,781
Coverage area: 0.183 km² Reprojection error: 0.576 pix
Camera Model Resolution Focal Length Pixel Size Precalibrated
FC220 (4.73mm) 1000 x 750 4.73 mm 6.3 x 6.3 μm No
Table 1. Cameras.
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Camera Calibration
1 pix
Fig. 2. Image residuals for FC220 (4.73mm).
FC220 (4.73mm)
154 images
Type Resolution Focal Length Pixel Size
Frame 1000 x 750 4.73 mm 6.3 x 6.3 μm
Value Error F Cx Cy K1 K2 K3 P1 P2
F 750.239 1.1 1.00 -0.95 -0.72 0.44 -0.68 0.78 -0.27 -0.15
Cx 4.69516 0.15 1.00 0.69 -0.42 0.66 -0.75 0.31 0.13
Cy -0.631837 0.056 1.00 -0.32 0.50 -0.57 0.19 0.29
K1 0.0409067 0.0005 1.00 -0.71 0.70 -0.80 -0.54
K2 -0.123468 0.0011 1.00 -0.98 0.29 0.17
K3 0.124878 0.0015 1.00 -0.33 -0.19
P1 -0.000448438 2.9e-005 1.00 0.58
P2 0.000220829 1.2e-005 1.00
Table 2. Calibration coefficients and correlation matrix.
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Camera Locations
1.5 m
1.2 m
0.9 m
0.6 m
0.3 m
0m
-0.3 m
-0.6 m
-0.9 m
-1.2 m
-1.5 m
x 10
100 m
Fig. 3. 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)
0.559198 0.68776 0.57045 0.886406 1.0541
Table 3. Average camera location error.
X - Longitude, Y - Latitude, Z - Altitude.
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Digital Elevation Model
21 m
-11 m
100 m
Fig. 4. Reconstructed digital elevation model.
Resolution: 63.1 cm/pix
Point density: 2.51 points/m²
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Processing Parameters
General
Cameras 154
Aligned cameras 154
Coordinate system W GS 84 (EPSG::4326)
Rotation angles Yaw, Pitch, Roll
Point Cloud
Points 61,056 of 65,966
RMS reprojection error 0.14836 (0.575758 pix)
Max reprojection error 0.446531 (11.2623 pix)
Mean key point size 3.58504 pix
Point colors 3 bands, uint8
Key points No
Average tie point multiplicity 4.75478
Alignment parameters
Accuracy High
Generic preselection Yes
Reference preselection Yes
Key point limit 40,000
Tie point limit 4,000
Adaptive camera model fitting No
Matching time 4 minutes 53 seconds
Alignment time 4 minutes 15 seconds
Software version 1.5.5.9097
Depth Maps
Count 154
Depth maps generation parameters
Quality Medium
Filtering mode Mild
Processing time 10 minutes 5 seconds
Dense Point Cloud
Points 540,732
Point colors 3 bands, uint8
Depth maps generation parameters
Quality Medium
Filtering mode Mild
Processing time 10 minutes 5 seconds
Dense cloud generation parameters
Processing time 1 minutes 13 seconds
Software version 1.5.5.9097
Model
Faces 60,000
Vertices 30,357
Vertex colors 3 bands, uint8
Texture 4,096 x 4,096, 4 bands, uint8
Depth maps generation parameters
Quality Medium
Filtering mode Mild
Processing time 10 minutes 5 seconds
Reconstruction parameters
Surface type Arbitrary
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General
Source data Dense cloud
Interpolation Enabled
Strict volumetric masks No
Processing time 52 seconds
Texturing parameters
Mapping mode Generic
Blending mode Mosaic
Texture size 4,096
Enable hole filling Yes
Enable ghosting filter Yes
UV mapping time 30 seconds
Blending time 2 minutes 9 seconds
Software version 1.5.5.9097
DEM
Size 895 x 841
Coordinate system W GS 84 (EPSG::4326)
Reconstruction parameters
Source data Dense cloud
Interpolation Enabled
Processing time 5 seconds
Software version 1.5.5.9097
Orthomosaic
Size 2,896 x 2,672
Coordinate system W GS 84 (EPSG::4326)
Colors 3 bands, uint8
Reconstruction parameters
Blending mode Mosaic
Surface DEM
Enable hole filling Yes
Processing time 45 seconds
Software version 1.5.5.9097
Software
Version 1.5.5 build 9097
Platform W indows 64
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