Piz Laviner - Err Detachment System
Processing Report Reconstruction uncertainty: 15 Projection Accuracy: 3 Reprojection Error: 0.3 Dense Cloud Confidence: 5-255 Mesh connected component size: 99%
23 December 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) |
1082 images |
Type | Resolution | Focal Length | Pixel Size |
Frame | 5472 x 3648 | 10.26 mm | 2.41 x 2.41 μm |
Value | Error | F | Cx | Cy | K1 | K2 | K3 | P1 | P2 | |
F | 4326.07 | 0.022 | 1.00 | 0.03 | -0.30 | -0.31 | 0.30 | -0.26 | 0.04 | -0.15 |
Cx | -17.2039 | 0.049 | 1.00 | -0.01 | -0.01 | 0.01 | -0.01 | 0.95 | -0.02 | |
Cy | -28.4554 | 0.037 | 1.00 | 0.00 | -0.01 | 0.01 | -0.02 | 0.65 | ||
K1 | -0.00957282 | 2.9e-05 | 1.00 | -0.96 | 0.89 | -0.01 | -0.06 | |||
K2 | 0.0469915 | 0.00012 | 1.00 | -0.98 | 0.01 | 0.02 | ||||
K3 | -0.0534011 | 0.00015 | 1.00 | -0.01 | -0.02 | |||||
P1 | 0.000455691 | 3.9e-06 | 1.00 | -0.03 | ||||||
P2 | -0.00256516 | 2e-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 (cm) | Y error (cm) | Z error (cm) | XY error (cm) | Total error (cm) |
17.7225 | 14.4288 | 8.77425 | 22.8534 | 24.4799 |
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 | 1082 |
Aligned cameras | 1082 |
Coordinate system | CH1903+ / LV95 (EPSG::2056) |
Rotation angles | Yaw, Pitch, Roll |
Point Cloud | |
Points | 927,732 of 7,529,570 |
RMS reprojection error | 0.188805 (0.307594 pix) |
Max reprojection error | 5.69039 (7.19352 pix) |
Mean key point size | 1.56737 pix |
Point colors | 3 bands, uint8 |
Key points | No |
Average tie point multiplicity | 3.65418 |
Alignment parameters | |
Accuracy | Highest |
Generic preselection | Yes |
Reference preselection | Source |
Key point limit | 60,000 |
Key point limit per Mpx | 1,000 |
Tie point limit | 0 |
Filter points by mask | Yes |
Mask tie points | No |
Exclude stationary tie points | Yes |
Guided image matching | No |
Adaptive camera model fitting | No |
Matching time | 1 hours 15 minutes |
Matching memory usage | 2.58 GB |
Alignment time | 44 minutes 36 seconds |
Alignment memory usage | 2.68 GB |
Optimization parameters | |
Parameters | f, cx, cy, k1-k3, p1, p2 |
Adaptive camera model fitting | No |
Optimization time | 1 minutes 30 seconds |
Date created | 2022:09:24 10:51:13 |
Software version | 1.8.4.14856 |
File size | 462.75 MB |
Depth Maps | |
Count | 1070 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 16 |
Processing time | 1 hours 46 minutes |
Memory usage | 4.07 GB |
Date created | 2022:09:24 12:48:34 |
Software version | 1.8.4.14856 |
File size | 7.23 GB |
Dense Point Cloud | |
Points | 168,743,451 |
Point colors | 3 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 16 |
Processing time | 1 hours 46 minutes |
Memory usage | 4.07 GB |
Dense cloud generation parameters | |
Processing time | 21 hours 38 minutes |
Memory usage | 26.41 GB |
Date created | 2022:09:24 18:17:54 |
Software version | 1.8.4.14856 |
File size | 8.67 GB |
Model | |
Faces | 35,201,783 |
Vertices | 17,618,347 |
Vertex colors | 3 bands, uint8 |
Texture | 4,096 x 4,096 x 40, 4 bands, uint8 |
Depth maps generation parameters | |
Quality | High |
Filtering mode | Mild |
Max neighbors | 16 |
Processing time | 1 hours 46 minutes |
Memory usage | 4.07 GB |
Reconstruction parameters | |
Surface type | Arbitrary |
Source data | Dense cloud |
Interpolation | Disabled |
Strict volumetric masks | No |
Processing time | 1 hours 37 minutes |
Memory usage | 13.30 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 24 seconds |
UV mapping memory usage | 6.50 GB |
Blending time | 1 hours 37 minutes |
Blending memory usage | 54.74 GB |
Date created | 2022:09:25 10:21:11 |
Software version | 1.8.4.14856 |
File size | 2.36 GB |
Tiled Model | |
Texture | 3 bands, uint8 |
Reconstruction parameters | |
Source data | Mesh |
Tile size | 256 |
Face count | High |
Enable ghosting filter | No |
Processing time | 5 hours 4 minutes |
Memory usage | 14.72 GB |
Date created | 2022:09:30 22:20:40 |
Software version | 1.8.4.14856 |
File size | 1.81 GB |
Orthomosaic | |
Size | 40,860 x 7,444 |
Coordinate system | WGS 84 (EPSG::4978) |
Colors | 3 bands, uint8 |
Reconstruction parameters | |
Blending mode | Mosaic |
Surface | Mesh |
Enable hole filling | Yes |
Enable ghosting filter | No |
Processing time | 2 hours 20 minutes |
Memory usage | 3.95 GB |
Date created | 2022:11:16 19:27:41 |
Software version | 1.8.4.14856 |
File size | 8.11 GB |
System | |
Software name | Agisoft Metashape Professional |
Software version | 1.8.4 build 14856 |
OS | Windows 64 bit |
RAM | 127.71 GB |
CPU | Intel(R) Xeon(R) Gold 5122 CPU @ 3.60GHz |
GPU(s) | Quadro P5000 |