Grønfjordbreane
Filtering: Dense cloud: 5-255 Connected mesh: 99%
19 February 2022
Survey Data
Fig. 1. Camera locations and image overlap.
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
Fig. 2. Image residuals for Test_Pro (10.26mm).
Test_Pro (10.26mm)
428 images
Value | Error | F | Cx | Cy | B1 | B2 | K1 | K2 | K3 | P1 | P2 | |
F | 4348.92 | 0.029 | 1.00 | 0.09 | -0.10 | -0.59 | -0.00 | -0.08 | 0.16 | -0.14 | 0.06 | -0.16 |
Cx | 6.67387 | 0.054 | 1.00 | -0.21 | -0.17 | 0.13 | 0.01 | 0.03 | -0.03 | 0.95 | -0.20 | |
Cy | -51.4341 | 0.049 | 1.00 | -0.11 | -0.16 | -0.07 | 0.03 | -0.02 | -0.19 | 0.91 | ||
B1 | 3.19852 | 0.024 | 1.00 | -0.03 | -0.05 | 0.04 | -0.04 | -0.15 | 0.02 | |||
B2 | 3.64771 | 0.022 | 1.00 | 0.03 | -0.01 | -0.00 | 0.03 | -0.10 | ||||
K1 | 0.00595936 | 2.3e-05 | 1.00 | -0.95 | 0.89 | 0.00 | -0.09 | |||||
K2 | 0.0405716 | 9.7e-05 | 1.00 | -0.98 | 0.02 | 0.04 | ||||||
K3 | -0.045073 | 0.00013 | 1.00 | -0.02 | -0.03 | |||||||
P1 | -0.0002071 | 3.7e-06 | 1.00 | -0.19 | ||||||||
P2 | -0.00375004 | 3.1e-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) |
0.440366 | 0.821582 | 1.90036 | 0.932158 | 2.11667 |
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 | 428 |
Aligned cameras | 428 |
Coordinate system | WGS 84 (EPSG::4326) |
Rotation angles | Yaw, Pitch, Roll |
Point Cloud | |
Points | 116,516 of 160,651 |
RMS reprojection error | 0.261584 (0.672694 pix) |
Max reprojection error | 1.08363 (24.1755 pix) |
Mean key point size | 2.44018 pix |
Point colors | 3 bands, uint8 |
Key points | No |
Average tie point multiplicity | 12.3084 |
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 | 5 minutes 39 seconds |
Matching memory usage | 650.49 MB |
Alignment time | 3 minutes 50 seconds |
Alignment memory usage | 464.55 MB |
Optimization parameters | |
Parameters | f, cx, cy, k1-k3, p1, p2 |
Adaptive camera model fitting | Yes |
Optimization time | 10 seconds |
Software version | 1.7.3.12473 |
File size | 33.35 MB |
Depth Maps | |
Count | 428 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 39 minutes 46 seconds |
Memory usage | 12.24 GB |
Software version | 1.7.3.12473 |
File size | 2.51 GB |
Dense Point Cloud | |
Points | 23,319,214 |
Point colors | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 39 minutes 46 seconds |
Memory usage | 12.24 GB |
Dense cloud generation parameters | |
Processing time | 2 hours 32 minutes |
Memory usage | 26.40 GB |
Software version | 1.7.3.12473 |
File size | 510.91 MB |
Model | |
Faces | 1,456,183 |
Vertices | 735,181 |
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 | 39 minutes 46 seconds |
Memory usage | 12.24 GB |
Reconstruction parameters | |
Surface type | Arbitrary |
Source data | Dense cloud |
Interpolation | Enabled |
Strict volumetric masks | No |
Processing time | 8 minutes 43 seconds |
Memory usage | 11.90 GB |
Texturing parameters | |
Mapping mode | Generic |
Blending mode | Mosaic |
Texture size | 4,096 |
Enable hole filling | Yes |
Enable ghosting filter | Yes |
UV mapping time | 4 minutes 4 seconds |
UV mapping memory usage | 3.10 GB |
Blending time | 3 minutes 39 seconds |
Blending memory usage | 5.03 GB |
Software version | 1.7.2.12040 |
File size | 269.45 MB |
Tiled Model | |
Texture | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 100 |
Processing time | 39 minutes 46 seconds |
Memory usage | 12.24 GB |
Reconstruction parameters | |
Source data | Dense cloud |
Tile size | 256 |
Face count | Medium |
Enable ghosting filter | No |
Processing time | 28 minutes 5 seconds |
Memory usage | 2.61 GB |
Software version | 1.7.2.12040 |
File size | 129.59 MB |
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 |