Seipfjellet
Reconstruction uncertainty 30 Projection accuracy 3 Reprojection error 0,3 Dense Cloud Confidence 2-255 Filter Component Size: 99%
16 March 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)
617 images
| Value | Error | F | Cx | Cy | B1 | B2 | K1 | K2 | K3 | K4 | P1 | P2 | |
| F | 4350.84 | 0.041 | 1.00 | 0.01 | -0.01 | -0.41 | -0.13 | -0.17 | 0.20 | -0.19 | 0.18 | 0.04 | -0.10 |
| Cx | 8.85275 | 0.081 | 1.00 | -0.23 | 0.01 | 0.33 | 0.01 | 0.02 | -0.02 | 0.01 | 0.95 | -0.27 | |
| Cy | -53.9881 | 0.07 | 1.00 | -0.44 | -0.29 | -0.04 | 0.02 | -0.02 | 0.02 | -0.20 | 0.84 | ||
| B1 | 0.811267 | 0.039 | 1.00 | 0.21 | -0.02 | 0.01 | -0.00 | -0.00 | -0.07 | -0.23 | |||
| B2 | 2.74682 | 0.031 | 1.00 | 0.00 | 0.00 | -0.00 | -0.00 | 0.29 | -0.27 | ||||
| K1 | 0.00447725 | 4.9e-05 | 1.00 | -0.96 | 0.91 | -0.86 | 0.01 | -0.08 | |||||
| K2 | 0.0506476 | 0.00032 | 1.00 | -0.99 | 0.95 | 0.02 | 0.02 | ||||||
| K3 | -0.0880476 | 0.00085 | 1.00 | -0.99 | -0.02 | -0.02 | |||||||
| K4 | 0.0510142 | 0.00076 | 1.00 | 0.01 | 0.02 | ||||||||
| P1 | -0.000118907 | 5.5e-06 | 1.00 | -0.26 | |||||||||
| P2 | -0.00382401 | 4e-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) |
| 0.840012 | 1.12812 | 4.0469 | 1.40651 | 4.28435 |
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 | 618 |
| Aligned cameras | 617 |
| Coordinate system | WGS 84 (EPSG::4326) |
| Rotation angles | Yaw, Pitch, Roll |
| Point Cloud | |
| Points | 11,987 of 99,967 |
| RMS reprojection error | 0.132351 (0.246964 pix) |
| Max reprojection error | 0.299993 (1.60664 pix) |
| Mean key point size | 1.90628 pix |
| Point colors | 3 bands, uint8 |
| Key points | No |
| Average tie point multiplicity | 33.5076 |
| 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 6 seconds |
| Matching memory usage | 687.60 MB |
| Alignment time | 15 minutes 32 seconds |
| Alignment memory usage | 716.13 MB |
| Optimization parameters | |
| Parameters | f, b1, b2, cx, cy, k1-k4, p1, p2 |
| Adaptive camera model fitting | No |
| Optimization time | 10 seconds |
| Software version | 1.7.3.12473 |
| File size | 52.92 MB |
| Depth Maps | |
| Count | 503 |
| Depth maps generation parameters | |
| Quality | Medium |
| Filtering mode | Mild |
| Processing time | 10 minutes 55 seconds |
| Memory usage | 1.45 GB |
| Software version | 1.7.2.12040 |
| File size | 785.60 MB |
| Dense Point Cloud | |
| Points | 8,054,555 |
| Point colors | 3 bands, uint8 |
| Depth maps generation parameters | |
| Quality | Medium |
| Filtering mode | Mild |
| Processing time | 10 minutes 55 seconds |
| Memory usage | 1.45 GB |
| Dense cloud generation parameters | |
| Processing time | 39 minutes 9 seconds |
| Memory usage | 9.08 GB |
| Software version | 1.7.2.12040 |
| File size | 169.11 MB |
| Model | |
| Faces | 521,338 |
| Vertices | 264,182 |
| 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 | 10 minutes 55 seconds |
| Memory usage | 1.45 GB |
| Reconstruction parameters | |
| Surface type | Arbitrary |
| Source data | Dense cloud |
| Interpolation | Enabled |
| Strict volumetric masks | No |
| Processing time | 2 minutes 56 seconds |
| Memory usage | 4.12 GB |
| 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 26 seconds |
| UV mapping memory usage | 3.35 GB |
| Blending time | 5 minutes 10 seconds |
| Blending memory usage | 5.78 GB |
| Software version | 1.7.2.12040 |
| File size | 186.90 MB |
| Tiled Model | |
| Texture | 3 bands, uint8 |
| Depth maps generation parameters | |
| Quality | Medium |
| Filtering mode | Mild |
| Processing time | 10 minutes 55 seconds |
| Memory usage | 1.45 GB |
| Reconstruction parameters | |
| Source data | Dense cloud |
| Tile size | 256 |
| Face count | Medium |
| Enable ghosting filter | No |
| Processing time | 31 minutes 31 seconds |
| Memory usage | 2.90 GB |
| Software version | 1.7.2.12040 |
| File size | 181.38 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 |