Skansen
Processing Report
28 January 2022
Survey Data
Fig. 1. Camera locations and image overlap.
Camera Model | Resolution | Focal Length | Pixel Size | Precalibrated |
NIKON D90 (50mm) | 4288 x 2848 | 50 mm | 5.6 x 5.6 μm | No |
Table 1. Cameras.
Camera Calibration
Fig. 2. Image residuals for NIKON D90 (50mm).
NIKON D90 (50mm)
464 images
Value | Error | F | Cx | Cy | K1 | K2 | K3 | P1 | P2 | |
F | 9027.4 | 0.054 | 1.00 | 0.03 | -0.16 | 0.09 | 0.03 | -0.03 | 0.02 | -0.18 |
Cx | -39.3627 | 0.05 | 1.00 | -0.06 | -0.00 | 0.01 | -0.01 | 0.95 | -0.00 | |
Cy | -19.2511 | 0.043 | 1.00 | -0.05 | 0.01 | -0.01 | -0.05 | 0.91 | ||
K1 | -0.00123352 | 3.2e-05 | 1.00 | -0.96 | 0.91 | 0.00 | -0.06 | |||
K2 | 0.0369789 | 0.00092 | 1.00 | -0.98 | 0.00 | 0.02 | ||||
K3 | 0.0817932 | 0.0081 | 1.00 | -0.00 | -0.01 | |||||
P1 | -0.00117973 | 1.9e-06 | 1.00 | 0.01 | ||||||
P2 | -0.000240186 | 1.6e-06 | 1.00 |
Table 2. Calibration coefficients and correlation matrix.
Camera Locations
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) |
1.46789 | 1.86561 | 4.89725 | 2.37386 | 5.44227 |
Table 3. Average camera location error.
X - Longitude, Y - Latitude, Z - Altitude.
Digital Elevation Model
Fig. 4. Reconstructed digital elevation model.
Processing Parameters
General | |
Cameras | 464 |
Aligned cameras | 391 |
Coordinate system | WGS 84 (EPSG::4326) |
Rotation angles | Yaw, Pitch, Roll |
Point Cloud | |
Points | 954,475 of 1,898,975 |
RMS reprojection error | 0.120739 (0.169025 pix) |
Max reprojection error | 0.3 (1.1949 pix) |
Mean key point size | 1.4233 pix |
Point colors | 3 bands, uint8 |
Key points | No |
Average tie point multiplicity | 5.39656 |
Alignment parameters | |
Accuracy | Highest |
Generic preselection | Yes |
Reference preselection | No |
Key point limit | 60,000 |
Tie point limit | 0 |
Exclude stationary tie points | Yes |
Guided image matching | No |
Adaptive camera model fitting | No |
Matching time | 30 minutes 2 seconds |
Matching memory usage | 879.07 MB |
Alignment time | 14 minutes 7 seconds |
Alignment memory usage | 735.30 MB |
Optimization parameters | |
Parameters | f, cx, cy, k1-k3, p1, p2 |
Adaptive camera model fitting | No |
Optimization time | 34 seconds |
Software version | 1.7.2.12040 |
File size | 279.27 MB |
Depth Maps | |
Count | 384 |
Depth maps generation parameters | |
Quality | Medium |
Filtering mode | Mild |
Processing time | 12 minutes 23 seconds |
Memory usage | 761.80 MB |
Software version | 1.7.2.12040 |
File size | 357.90 MB |
Dense Point Cloud | |
Points | 29,475,556 |
Point colors | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | Medium |
Filtering mode | Mild |
Processing time | 12 minutes 23 seconds |
Memory usage | 761.80 MB |
Dense cloud generation parameters | |
Processing time | 21 minutes 35 seconds |
Memory usage | 5.12 GB |
Software version | 1.7.2.12040 |
File size | 549.93 MB |
Model | |
Faces | 1,883,628 |
Vertices | 951,099 |
Vertex colors | 3 bands, uint8 |
Texture | 4,096 x 4,096 x 10, 4 bands, uint8 |
Depth maps generation parameters | |
Quality | Medium |
Filtering mode | Mild |
Processing time | 12 minutes 23 seconds |
Memory usage | 761.80 MB |
Reconstruction parameters | |
Surface type | Arbitrary |
Source data | Dense cloud |
Interpolation | Enabled |
Strict volumetric masks | No |
Processing time | 12 minutes 30 seconds |
Memory usage | 15.21 GB |
Texturing parameters | |
Mapping mode | Generic |
Blending mode | Mosaic |
Texture size | 4,096 |
Enable hole filling | Yes |
Enable ghosting filter | Yes |
UV mapping time | 5 minutes 10 seconds |
UV mapping memory usage | 3.15 GB |
Blending time | 20 minutes 29 seconds |
Blending memory usage | 4.82 GB |
Software version | 1.7.2.12040 |
File size | 283.16 MB |
Tiled Model | |
Texture | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | Medium |
Filtering mode | Mild |
Processing time | 12 minutes 23 seconds |
Memory usage | 761.80 MB |
Reconstruction parameters | |
Source data | Dense cloud |
Tile size | 256 |
Face count | Medium |
Enable ghosting filter | No |
Processing time | 2 hours 50 minutes |
Memory usage | 3.27 GB |
Software version | 1.7.2.12040 |
File size | 658.91 MB |
System | |
Software name | Agisoft Metashape Professional |
Software version | 1.7.2 build 12040 |
OS | Windows 64 bit |
RAM | 127.78 GB |
CPU | Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz |
GPU(s) | GeForce RTX 2080 |