Processing Report
Filtering: --Reconstruction_uncertainty: 12 --Projection_accuracy: 3 --Reprojection_error: 0.3 --Dense_cloud_confidence: 10-255 --mesh_connected_component_size: 99%
14 April 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)
442 images
| Value | Error | F | Cx | Cy | K1 | K2 | K3 | P1 | P2 | |
| F | 4349.92 | 0.058 | 1.00 | 0.03 | -0.73 | 0.02 | 0.06 | -0.06 | 0.03 | -0.26 |
| Cx | 4.23711 | 0.054 | 1.00 | 0.02 | -0.00 | 0.01 | -0.01 | 0.88 | 0.12 | |
| Cy | -63.4744 | 0.086 | 1.00 | -0.09 | 0.03 | -0.02 | 0.02 | 0.52 | ||
| K1 | 0.0056793 | 2.3e-05 | 1.00 | -0.94 | 0.88 | -0.01 | -0.16 | |||
| K2 | 0.0288703 | 9.9e-05 | 1.00 | -0.98 | 0.02 | 0.05 | ||||
| K3 | -0.0288338 | 0.00013 | 1.00 | -0.02 | -0.04 | |||||
| P1 | -0.00023401 | 3.9e-06 | 1.00 | 0.11 | ||||||
| P2 | -0.00301601 | 2.9e-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) |
| 2.55527 | 2.02525 | 4.32192 | 3.26053 | 5.41387 |
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 | 442 |
| Aligned cameras | 442 |
| Coordinate system | WGS 84 (EPSG::4326) |
| Rotation angles | Yaw, Pitch, Roll |
| Point Cloud | |
| Points | 494,629 of 2,388,623 |
| RMS reprojection error | 0.127002 (0.207635 pix) |
| Max reprojection error | 1.06073 (2.34776 pix) |
| Mean key point size | 1.5605 pix |
| Point colors | 3 bands, uint8 |
| Key points | No |
| Average tie point multiplicity | 3.46679 |
| 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 | 3 minutes 21 seconds |
| Matching memory usage | 2.53 GB |
| Alignment time | 2 minutes 20 seconds |
| Alignment memory usage | 981.91 MB |
| Optimization parameters | |
| Parameters | f, cx, cy, k1-k3, p1, p2 |
| Adaptive camera model fitting | No |
| Optimization time | 12 seconds |
| Software version | 1.7.2.12040 |
| File size | 144.57 MB |
| Depth Maps | |
| Count | 425 |
| Depth maps generation parameters | |
| Quality | High |
| Filtering mode | Mild |
| Processing time | 0 seconds |
| Memory usage | 3.75 GB |
| Software version | 1.7.2.12040 |
| File size | 3.19 GB |
| Dense Point Cloud | |
| Points | 37,966,371 |
| Point colors | 3 bands, uint8 |
| Depth maps generation parameters | |
| Quality | High |
| Filtering mode | Mild |
| Processing time | 0 seconds |
| Memory usage | 3.75 GB |
| Dense cloud generation parameters | |
| Processing time | 1 minutes 18 seconds |
| Memory usage | 20.27 GB |
| Software version | 1.7.2.12040 |
| File size | 2.49 GB |
| Model | |
| Faces | 7,576,107 |
| Vertices | 3,797,857 |
| 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 |
| Processing time | 0 seconds |
| Memory usage | 3.75 GB |
| Reconstruction parameters | |
| Surface type | Arbitrary |
| Source data | Dense cloud |
| Interpolation | Enabled |
| Strict volumetric masks | No |
| Processing time | 26 minutes 37 seconds |
| Memory usage | 23.17 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 16 seconds |
| UV mapping memory usage | 4.26 GB |
| Blending time | 6 minutes 6 seconds |
| Blending memory usage | 6.88 GB |
| Software version | 1.7.2.12040 |
| File size | 515.72 MB |
| Tiled Model | |
| Texture | 3 bands, uint8 |
| Depth maps generation parameters | |
| Quality | High |
| Filtering mode | Mild |
| Processing time | 0 seconds |
| Memory usage | 3.75 GB |
| Reconstruction parameters | |
| Source data | Dense cloud |
| Tile size | 256 |
| Face count | High |
| Enable ghosting filter | No |
| Processing time | 41 seconds |
| Memory usage | 4.56 GB |
| Software version | 1.7.2.12040 |
| File size | 1.03 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 |