Meyerfjellet
Filtering: Dense cloud: 4-255 Connected mesh: 99%
19 February 2022
Survey Data
Fig. 1. Camera locations and image overlap.
Camera Model | Resolution | Focal Length | Pixel Size | Precalibrated |
L1D-20c (10.26mm) | 5472 x 3648 | 10.26 mm | 2.41 x 2.41 μm | No |
Table 1. Cameras.
Camera Calibration
Fig. 2. Image residuals for L1D-20c (10.26mm).
L1D-20c (10.26mm)
222 images
Value | Error | F | Cx | Cy | B1 | B2 | K1 | K2 | K3 | P1 | P2 | |
F | 4309.26 | 0.18 | 1.00 | 0.02 | 0.63 | -0.95 | -0.28 | 0.01 | 0.06 | -0.07 | 0.10 | -0.00 |
Cx | 25.322 | 0.11 | 1.00 | -0.07 | 0.01 | 0.25 | 0.03 | -0.02 | 0.04 | 0.90 | -0.08 | |
Cy | -63.0586 | 0.14 | 1.00 | -0.75 | -0.22 | -0.12 | 0.08 | -0.08 | -0.01 | 0.65 | ||
B1 | 25.1079 | 0.19 | 1.00 | 0.25 | 0.07 | -0.05 | 0.06 | -0.05 | -0.11 | |||
B2 | 18.7051 | 0.11 | 1.00 | 0.00 | -0.02 | 0.03 | -0.15 | -0.06 | ||||
K1 | 1.08572e-05 | 2.8e-05 | 1.00 | -0.91 | 0.83 | 0.05 | -0.20 | |||||
K2 | 0.0171566 | 0.00011 | 1.00 | -0.98 | -0.01 | 0.10 | ||||||
K3 | -0.0252956 | 0.00013 | 1.00 | 0.02 | -0.09 | |||||||
P1 | 0.00138907 | 7.6e-06 | 1.00 | -0.08 | ||||||||
P2 | -0.00281732 | 4.9e-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) |
1.07296 | 1.631 | 0.424633 | 1.95229 | 1.99793 |
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 | 222 |
Aligned cameras | 222 |
Shapes | |
LineString | 10 |
Coordinate system | WGS 84 (EPSG::4326) |
Rotation angles | Yaw, Pitch, Roll |
Point Cloud | |
Points | 91,703 of 122,387 |
RMS reprojection error | 0.214784 (0.479626 pix) |
Max reprojection error | 1.05213 (24.3428 pix) |
Mean key point size | 2.02797 pix |
Point colors | 3 bands, uint8 |
Key points | No |
Average tie point multiplicity | 7.58288 |
Alignment parameters | |
Accuracy | Highest |
Generic preselection | Yes |
Reference preselection | Source |
Key point limit | 40,000 |
Tie point limit | 4,000 |
Exclude stationary tie points | Yes |
Guided image matching | No |
Adaptive camera model fitting | Yes |
Matching time | 2 minutes 11 seconds |
Matching memory usage | 299.00 MB |
Alignment time | 2 minutes 23 seconds |
Alignment memory usage | 204.94 MB |
Optimization parameters | |
Parameters | f, cx, cy, k1-k3, p1, p2 |
Adaptive camera model fitting | Yes |
Optimization time | 5 seconds |
Software version | 1.7.1.11797 |
File size | 16.64 MB |
Depth Maps | |
Count | 222 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 16 minutes 27 seconds |
Memory usage | 8.10 GB |
Software version | 1.7.1.11797 |
File size | 858.48 MB |
Dense Point Cloud | |
Points | 25,993,122 |
Point colors | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 16 minutes 27 seconds |
Memory usage | 8.10 GB |
Dense cloud generation parameters | |
Processing time | 30 minutes 57 seconds |
Memory usage | 10.33 GB |
Software version | 1.7.1.11797 |
File size | 792.14 MB |
Model | |
Faces | 5,030,456 |
Vertices | 2,534,346 |
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 | 100 |
Processing time | 16 minutes 27 seconds |
Memory usage | 8.10 GB |
Reconstruction parameters | |
Surface type | Arbitrary |
Source data | Dense cloud |
Interpolation | Enabled |
Strict volumetric masks | No |
Processing time | 10 minutes 17 seconds |
Memory usage | 14.74 GB |
Texturing parameters | |
Mapping mode | Generic |
Blending mode | Mosaic |
Texture size | 4,096 |
Enable hole filling | Yes |
Enable ghosting filter | Yes |
UV mapping time | 3 minutes 39 seconds |
UV mapping memory usage | 3.96 GB |
Blending time | 1 minutes 53 seconds |
Blending memory usage | 5.67 GB |
Software version | 1.7.1.11797 |
File size | 411.72 MB |
Tiled Model | |
Texture | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 16 minutes 27 seconds |
Memory usage | 8.10 GB |
Reconstruction parameters | |
Source data | Dense cloud |
Tile size | 128 |
Face count | Low |
Enable ghosting filter | No |
Processing time | 13 hours 12 minutes |
Memory usage | 15.32 GB |
Software version | 1.7.1.11797 |
File size | 11.50 GB |
System | |
Software name | Agisoft Metashape Professional |
Software version | 1.7.2 build 12040 |
OS | Windows 64 bit |
RAM | 127.71 GB |
CPU | Intel(R) Xeon(R) Gold 5122 CPU @ 3.60GHz |
GPU(s) | Quadro P5000 |