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Agisoft PhotoScanProcessing Report17 November 2016
Survey Data
100 m
123456789> 9
Fig. 1. Camera locations and image overlap.
Number of images: 190Flying altitude: 165 mGround resolution: 3.82 cm/pixCoverage area: 2.92e+05 sq m
Camera stations: 190Tie points: 1,589,598Projections: 5,048,207Reprojection error: 0.841 pix
Camera Model Resolution Focal Length Pixel Size PrecalibratedCanon PowerShot G9 X (10.2 mm) 5472 x 3648 10.2 mm 2.4 x 2.4 um No
Table 1. Cameras.
Camera Calibration
1 pixFig. 2. Image residuals for Canon PowerShot G9 X (10.2 mm).
Canon PowerShot G9 X (10.2 mm)190 images
Resolution Focal Length Pixel Size Precalibrated5472 x 3648 10.2 mm 2.4 x 2.4 um No
Type: F:Cx: B1:Cy: B2:K1: P1:K2: P2:K3: P3:K4: P4:
Frame-35.3666-30.72610.00184508-0.05406150.165134-0.165504
4308.10.3669860.27238-0.00431622-0.00372800
Camera Locations
100 m
-8.5 m-6.8 m-5.1 m-3.4 m-1.7 m0 m1.7 m3.4 m5.1 m6.8 m8.5 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) XY error (m) Z error (m) Total error (m)1.05459 0.809431 1.32941 4.20869 4.41366
Table 2. Average camera location error.
Ground Control Points
100 m
GCP1
GCP10
GCP11
GCP12
GCP2
GCP3
GCP4GCP5
GCP6
GCP7
GCP8GCP9
CH1CH18
CH4
CH5
CH6
CH8
CH9
CH19
CH27
CH3
CH7
CH15
Fig. 4. GCP locations.
Label XY error (m) Z error (m) Error (m) Projections Error (pix)GCP10 0.0166546 0.0189493 0.025228 9 0.374
GCP11 0.00727876 -0.034235 0.0350002 3 0.264
GCP4 0.0148231 0.0235268 0.0278071 12 0.387
GCP6 0.0178765 -0.024137 0.0300361 4 0.236
Total 0.0147449 0.0258225 0.0297358 0.353Table 3. Control points.
Label XY error (m) Z error (m) Error (m) Projections Error (pix)GCP1 0.019496 -0.00261758 0.0196709 12 0.612
Label XY error (m) Z error (m) Error (m) Projections Error (pix)GCP12 0.067539 -0.166552 0.179725 5 0.531
GCP2 0.0180561 -0.095827 0.0975132 13 0.410
GCP3 0.00473583 -0.0277921 0.0281927 12 0.399
GCP5 0.0279393 -0.111243 0.114698 7 0.374
GCP7 0.0135951 -0.0676991 0.0690506 13 0.711
GCP8 0.0194254 -0.113034 0.114691 14 0.529
GCP9 0.0174814 -0.0343399 0.0385334 11 0.244
CH1 0.021002 0.0239776 0.0318749 12 0.284
CH18 0.0136431 -0.0724981 0.0737706 11 0.570
CH4 0.00733804 -0.0577683 0.0582325 13 0.387
CH5 0.0142751 0.0338114 0.0367013 10 0.265
CH6 0.0110487 -0.101224 0.101826 8 0.376
CH8 0.0171988 -0.0406088 0.0441007 7 0.370
CH9 0.0152866 -0.0568987 0.0589164 2 0.019
CH19 0.00836408 -0.107184 0.107509 13 0.440
CH27 0.0431198 -0.13464 0.141376 7 0.224
CH3 0.0269638 -0.0639331 0.0693865 12 0.255
CH7 0.0112338 -0.0596444 0.0606931 16 0.349
CH15 0.0136189 -0.104343 0.105228 8 0.170
Total 0.0239195 0.0843234 0.0876503 0.425Table 4. Check points.
Digital Elevation Model
100 m
-2300 m
2100 m
Fig. 5. Reconstructed digital elevation model.
Resolution: unknownPoint density: unknown
Processing Parameters
GeneralCameras 190Aligned cameras 190Markers 24Coordinate system WGS 84 / UTM zone 39N (EPSG::32639)
Point CloudPoints 1,589,598 of 1,673,615RMS reprojection error 0.165326 (0.841311 pix)Max reprojection error 0.666082 (44.4922 pix)Mean key point size 4.27711 pixEffective overlap 3.32111Alignment parameters
Accuracy HighPair preselection ReferenceKey point limit 400,000Tie point limit 40,000Constrain features by mask NoMatching time 3 hours 15 minutesAlignment time 23 minutes 12 seconds
Optimization parametersParameters f, b1, b2, cx, cy, k1-k4, p1, p2Optimization time 54 seconds