Agisoft PhotoScanProcessing Report17 November 2016

Survey Data

100 m

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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