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Kocevje 6 WGS84 Ellipsoidal

The Agisoft Processing Report details the processing of aerial survey data collected on March 6, 2018, including 4,110 images and 4,030 camera stations at a flying altitude of 180 m. Key metrics include a coverage area of 2.48 km², a total of 2,570,306 tie points, and a reprojection error of 1.28 pixels. The report also outlines camera calibration, ground control points, and the generation of a digital elevation model with a resolution of 9.06 cm/pix.

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Hoang Son (ILTech Co., Ltd)
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15 views8 pages

Kocevje 6 WGS84 Ellipsoidal

The Agisoft Processing Report details the processing of aerial survey data collected on March 6, 2018, including 4,110 images and 4,030 camera stations at a flying altitude of 180 m. Key metrics include a coverage area of 2.48 km², a total of 2,570,306 tie points, and a reprojection error of 1.28 pixels. The report also outlines camera calibration, ground control points, and the generation of a digital elevation model with a resolution of 9.06 cm/pix.

Uploaded by

Hoang Son (ILTech Co., Ltd)
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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AGISOFT

Processing Report
06 March 2018
Survey Data

>9
9
8
7
6
5
4
3
2
1

500 m
Fig. 1. Camera locations and image overlap.

Number of images: 4,110 Camera stations: 4,030


Flying altitude: 180 m Tie points: 2,570,306
Ground resolution: 2.34 cm/pix Projections: 7,392,666
Coverage area: 2.48 km² Reprojection error: 1.28 pix

Camera Model Resolution Focal Length Pixel Size Precalibrated


ILCE-6000 6000 x 4000 30 mm 3.9 x 3.9 μm No
Table 1. Cameras.
Camera Calibration

1 pix
Fig. 2. Image residuals for ILCE-6000.

ILCE-6000
4110 images

Resolution Focal Length Pixel Size Precalibrated


6000 x 4000 30 mm 3.9 x 3.9 μm No

Type: Frame F: 7699.57


Cx: -3.01994 B1: -3.93376
Cy: -28.2276 B2: 1.34991
K1: -0.144583 P1: 0.0002632
K2: 0.317231 P2: -0.000404636
K3: 0.045623 P3: 3.83608
K4: -0.0959915 P4: -2.63214
Camera Locations

40 cm
32 cm
24 cm
16 cm
8 cm
0 cm
-8 cm
-16 cm
-24 cm
-32 cm
-40 cm

x 1000

500 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 (cm) Y error (cm) Z error (cm) XY error (cm) Total error (cm)
5.03449 3.80009 4.21846 6.30768 7.58829
Table 2. Average camera location error.
Ground Control Points

3
4

Control points Check points 500 m


Fig. 4. GCP locations.

Count X error (cm) Y error (cm) Z error (cm) XY error (cm) Total (cm) Image (pix)
3 3.21793 7.24022 13.4931 7.92312 15.6474 0.476
Table 3. Check points RMSE.
Label X error (cm) Y error (cm) Z error (cm) Total (cm) Image (pix)
1 -1.11155 7.33151 -8.12961 11.0035 0.612 (28)
3 -4.26088 -8.09945 -15.5146 18.0128 0.416 (20)
4 -3.4168 -6.15711 -15.4725 16.9995 0.321 (25)
Total 3.21793 7.24022 13.4931 15.6474 0.476
Table 4. Check points.
Digital Elevation Model

630 m

500 m

500 m
Fig. 5. Reconstructed digital elevation model.

Resolution: 9.06 cm/pix


Point density: 122 points/m²
Processing Parameters
General
Cameras 4110
Aligned cameras 4030
Markers 3
Coordinate system WGS 84 (EPSG::4326)
Point Cloud
Points 2,570,306 of 2,923,369
RMS reprojection error 0.225104 (1.2789 pix)
Max reprojection error 2.76569 (37.8292 pix)
Mean key point size 5.06262 pix
Effective overlap 3.27283
Alignment parameters
Accuracy Highest
Pair preselection Reference
Key point limit 20,000
Tie point limit 8,000
Constrain features by mask No
Adaptive camera model fitting Yes
Matching time 12 hours 1 minutes
Alignment time 22 minutes 23 seconds
Optimization parameters
Parameters f, b1, b2, cx, cy, k1-k4, p1-p4
Optimization time 27 seconds
DEM
Size 42,398 x 15,482
Coordinate system WGS 84 (EPSG::4326)
Reconstruction parameters
Source data Dense cloud
Interpolation Enabled
Processing time 10 minutes 52 seconds
Orthomosaic
Size 150,982 x 54,825
Coordinate system WGS 84 (EPSG::4326)
Channels 3, uint8
Blending mode Mosaic
Reconstruction parameters
Surface DEM
Enable color correction No
Processing time 2 hours 36 minutes
Software
Version 1.2.6 build 2834
Platform Windows 64 bit

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