Berzeliuseggene

Reconstruction uncertainty 25 Projection accuracy 3 Reprojection error 0.3 Point Cloud Confidence 5-255

13 July 2023

Survey Data

1 2 3 4 5 6 7 8 9 > 9 200 m

Fig. 1. Camera locations and image overlap.

Number of images: 1,230 Flying altitude: 96.3 m Ground resolution: 2.85 cm/pix Coverage area: 0.165 km² Camera stations: 1,205 Tie points: 986,260 Projections: 5,278,882 Reprojection error: 0.299 pix
Camera Model Resolution Focal Length Pixel Size Precalibrated
Test_Pro (10.26mm) 5472 x 3648 10.26 mm 2.41 x 2.41 μm No

Table 1. Cameras.

Camera Calibration

1 pix

Fig. 2. Image residuals for Test_Pro (10.26mm).

Test_Pro (10.26mm)
1230 images
Type Resolution Focal Length Pixel Size
Frame 5472 x 3648 10.26 mm 2.41 x 2.41 μm
Value Error F Cx Cy K1 K2 K3 P1 P2
F 4336.99 0.021 1.00 -0.01 -0.50 0.05 0.10 -0.10 0.01 -0.19
Cx 25.5073 0.039 1.00 -0.12 0.00 -0.01 0.02 0.96 -0.17
Cy -46.137 0.034 1.00 -0.09 0.03 -0.03 -0.16 0.76
K1 -0.00155638 1e-05 1.00 -0.93 0.87 0.00 -0.13
K2 0.0168979 4e-05 1.00 -0.98 -0.01 0.04
K3 -0.0213212 4.9e-05 1.00 0.02 -0.04
P1 0.00183839 2.5e-06 1.00 -0.20
P2 -0.00262192 1.5e-06 1.00

Table 2. Calibration coefficients and correlation matrix.

Camera Locations

200 m -4 m -3.2 m -2.4 m -1.6 m -0.8 m 0 m 0.8 m 1.6 m 2.4 m 3.2 m 4 m x 30

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)
0.49374 0.694025 1.10507 0.851733 1.39522

Table 3. Average camera location error.

X - Longitude, Y - Latitude, Z - Altitude.

Digital Elevation Model

410 m 690 m 200 m

Fig. 4. Reconstructed digital elevation model.

Resolution: 5.7 cm/pix Point density: 308 points/m²

Processing Parameters

General
Cameras 1230
Aligned cameras 1205
Coordinate system WGS 84 (EPSG::4326)
Rotation angles Yaw, Pitch, Roll
Tie Points
Points 986,260 of 6,306,658
RMS reprojection error 0.130899 (0.299215 pix)
Max reprojection error 0.576468 (2.8641 pix)
Mean key point size 2.25867 pix
Point colors 3 bands, uint8
Key points No
Average tie point multiplicity 6.08765
Alignment parameters
Accuracy High
Generic preselection Yes
Reference preselection No
Key point limit 60,000
Key point limit per Mpx 1,000
Tie point limit 0
Exclude stationary tie points Yes
Guided image matching No
Adaptive camera model fitting No
Matching time 2 hours 18 minutes
Matching memory usage 2.73 GB
Alignment time 2 hours 20 minutes
Alignment memory usage 3.27 GB
Optimization parameters
Parameters f, cx, cy, k1-k3, p1, p2
Adaptive camera model fitting No
Optimization time 28 seconds
Date created 2022:10:31 11:54:57
Software version 1.8.4.14856
File size 626.61 MB
Depth Maps
Count 1205
Depth maps generation parameters
Quality High
Filtering mode Mild
Max neighbors 16
Processing time 2 hours 17 minutes
Memory usage 6.60 GB
Date created 2022:10:31 18:49:27
Software version 1.8.4.14856
File size 8.30 GB
Point Cloud
Points 95,167,322
Point attributes
Color 3 bands, uint8
Normal
Confidence 5 - 238
Point classes
Created (never classified) 95,167,322
Depth maps generation parameters
Quality High
Filtering mode Mild
Max neighbors 16
Processing time 2 hours 17 minutes
Memory usage 6.60 GB
Point cloud generation parameters
Processing time 11 hours 10 minutes
Memory usage 28.52 GB
Date created 2022:11:01 01:56:16
Software version 1.8.4.14856
File size 1.64 GB
Model
Faces 9,779,006
Vertices 4,880,844
Vertex colors 3 bands, uint8
Texture 4,096 x 4,096 x 10, 4 bands, uint8
Depth maps generation parameters
Quality High
Filtering mode Mild
Max neighbors 16
Processing time 2 hours 17 minutes
Memory usage 6.60 GB
Point cloud generation parameters
Processing time 11 hours 10 minutes
Memory usage 28.52 GB
Reconstruction parameters
Surface type Arbitrary
Source data Point cloud
Interpolation Disabled
Strict volumetric masks No
Processing time 39 minutes 44 seconds
Memory usage 10.15 GB
Texturing parameters
Mapping mode Generic
Blending mode Mosaic
Texture size 4,096
Enable hole filling Yes
Enable ghosting filter Yes
UV mapping time 9 minutes 29 seconds
UV mapping memory usage 3.48 GB
Blending time 12 minutes 34 seconds
Blending memory usage 6.20 GB
Blending GPU memory usage 4.69 GB
Date created 2023:07:12 14:19:07
Software version 2.0.2.16334
File size 683.17 MB
Tiled Model
Texture 3 bands, uint8
Depth maps generation parameters
Quality High
Filtering mode Mild
Max neighbors 16
Processing time 2 hours 17 minutes
Memory usage 6.60 GB
Reconstruction parameters
Source data Point cloud
Tile size 256
Face count High
Enable ghosting filter No
Processing time 1 minutes 33 seconds
Memory usage 8.32 GB
Date created 2022:11:07 17:28:35
Software version 1.8.4.14856
File size 571.05 MB
System
Software name Agisoft Metashape Professional
Software version 2.0.2 build 16334
OS Windows 64 bit
RAM 127.71 GB
CPU Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
GPU(s) Quadro RTX 5000