Lundgrenfjellet
Filter Component Size: 99% Decimated at 5000000 points
24 February 2022
Survey Data
Fig. 1. Camera locations and image overlap.
Camera Model | Resolution | Focal Length | Pixel Size | Precalibrated |
NIKON D800 (50mm) | 4924 x 7374 | 50 mm | 4.88 x 4.88 μm | No |
Table 1. Cameras.
Camera Calibration
Fig. 2. Image residuals for NIKON D800 (50mm).
NIKON D800 (50mm)
100 images
Value | Error | F | B1 | B2 | K1 | K2 | K3 | P1 | P2 | |
F | 10562.2 | 0.33 | 1.00 | -0.90 | -0.17 | 0.01 | 0.06 | -0.04 | -0.19 | 0.02 |
B1 | 4.45536 | 0.29 | 1.00 | 0.13 | -0.01 | -0.04 | 0.02 | 0.20 | 0.06 | |
B2 | -17.9857 | 0.23 | 1.00 | -0.01 | 0.01 | -0.02 | -0.50 | 0.19 | ||
K1 | -0.110067 | 5.1e-05 | 1.00 | -0.95 | 0.89 | 0.01 | -0.02 | |||
K2 | 0.0840239 | 0.00068 | 1.00 | -0.98 | -0.00 | -0.00 | ||||
K3 | 0.156584 | 0.0027 | 1.00 | 0.00 | -0.01 | |||||
P1 | 0.000166092 | 2.8e-06 | 1.00 | -0.09 | ||||||
P2 | 0.000362246 | 3.9e-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) |
12.9971 | 13.3106 | 25.8273 | 18.6037 | 31.83 |
Table 3. Average camera location error.
X - Easting, Y - Northing, Z - Altitude.
Digital Elevation Model
Fig. 4. Reconstructed digital elevation model.
Processing Parameters
General | |
Cameras | 100 |
Aligned cameras | 100 |
Coordinate system | WGS 84 / UTM zone 33N (EPSG::32633) |
Rotation angles | Yaw, Pitch, Roll |
Point Cloud | |
Points | 187,341 of 212,384 |
RMS reprojection error | 0.128259 (0.337492 pix) |
Max reprojection error | 0.390009 (19.9952 pix) |
Mean key point size | 2.50991 pix |
Point colors | 3 bands, uint8 |
Key points | No |
Average tie point multiplicity | 4.00172 |
Alignment parameters | |
Accuracy | High |
Generic preselection | Yes |
Reference preselection | Source |
Key point limit | 80,000 |
Tie point limit | 8,000 |
Guided image matching | No |
Adaptive camera model fitting | Yes |
Matching time | 1 minutes 27 seconds |
Matching memory usage | 2.06 GB |
Alignment time | 22 seconds |
Alignment memory usage | 175.01 MB |
Software version | 1.6.4.10928 |
File size | 17.88 MB |
Depth Maps | |
Count | 100 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Aggressive |
Processing time | 13 minutes 7 seconds |
Memory usage | 6.43 GB |
Software version | 1.6.4.10928 |
File size | 737.95 MB |
Dense Point Cloud | |
Points | 137,381,469 |
Point colors | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Aggressive |
Processing time | 13 minutes 7 seconds |
Memory usage | 6.43 GB |
Dense cloud generation parameters | |
Processing time | 10 minutes 13 seconds |
Memory usage | 12.38 GB |
Software version | 1.6.4.10928 |
File size | 3.39 GB |
Model | |
Faces | 4,999,999 |
Vertices | 2,503,519 |
Vertex colors | 3 bands, uint8 |
Texture | 4,096 x 4,096 x 10, 4 bands, uint8 |
Texturing parameters | |
Mapping mode | Generic |
Blending mode | Mosaic |
Texture size | 4,096 |
Enable hole filling | Yes |
Enable ghosting filter | Yes |
UV mapping time | 2 minutes 3 seconds |
UV mapping memory usage | 3.89 GB |
Blending time | 1 minutes 39 seconds |
Blending memory usage | 5.84 GB |
File size | 417.24 MB |
Tiled Model | |
Texture | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Aggressive |
Processing time | 13 minutes 7 seconds |
Memory usage | 6.43 GB |
Reconstruction parameters | |
Source data | Dense cloud |
Tile size | 256 |
Face count | Medium |
Enable ghosting filter | No |
Processing time | 1 hours 27 minutes |
Memory usage | 4.66 GB |
Software version | 1.7.2.12040 |
File size | 805.71 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) i9-10900 CPU @ 2.80GHz |
GPU(s) | NVIDIA GeForce RTX 2080 SUPER |