Full text
Diabasodden Align Camera Optimization Reconstruction uncertainty: 30 Camera Optimization Projection accuracy: 3 Camera Optimization Reprojection error: 0.3 Camera Optimization Disable Unaligned Images Dense Cloud Confidence: >3 Connected component size 99% 08 December 2025
Page 2
Survey Data 1 2 3 4 5 6 7 8 9 > 9 500 m Fig. 1. Camera locations and image overlap. Number of images: 931 Flying altitude: 85.3 m Ground resolution: 3.64 cm/pix Coverage area: 2.59 km² Camera stations: 931 Tie points: 2,307,749 Projections: 6,164,423 Reprojection error: 0.308 pix Camera Model Resolution Focal Length Pixel Size Precalibrated M3M (12.29mm) 5280 x 3956 12.29 mm 3.36 x 3.36 μm Yes Table 1. Cameras. Page 3
Camera Calibration 1 pix Fig. 2. Image residuals for M3M (12.29mm). M3M (12.29mm) 931 images, precalibrated Type Resolution Focal Length Pixel Size Frame 5280 x 3956 12.29 mm 3.36 x 3.36 μm Value Error F Cx Cy K1 K2 K3 P1 P2 F 3713.93 0.018 1.00 -0.04 -0.53 -0.16 0.10 -0.11 0.02 0.31 Cx 25.4513 0.018 1.00 0.05 -0.03 0.03 -0.03 0.41 -0.05 Cy -28.9535 0.022 1.00 0.03 0.04 -0.05 -0.03 -0.28 K1 -0.102662 8.1e-06 1.00 -0.95 0.89 -0.03 -0.11 K2 -0.0162673 2.3e-05 1.00 -0.98 0.03 0.03 K3 -0.0012141 1.9e-05 1.00 -0.03 -0.04 P1 -0.000322681 6.3e-07 1.00 0.03 P2 -0.000369624 6.6e-07 1.00 Table 2. Calibration coefficients and correlation matrix. Page 4
Camera Locations 500 m -5.00 m -4.00 m -3.00 m -2.00 m -1.00 m 0 m 1.00 m 2.00 m 3.00 m 4.00 m 5.00 m x 20 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) 3.36568 1.08079 1.15129 3.53495 3.71771 Table 3. Average camera location error. X - Longitude, Y - Latitude, Z - Altitude. Page 5
Digital Elevation Model 10.0 m 240 m 500 m Fig. 4. Reconstructed digital elevation model. Resolution: 14.5 cm/pix Point density: 47.3 points/m² Page 6
Processing Parameters General Images 931 Aligned images 931 Coordinate system WGS 84 (EPSG::4326) Rotation angles Yaw, Pitch, Roll Tie Points Points 2,307,749 of 5,526,151 RMS reprojection error 0.132468 (0.308363 pix) Max reprojection error 0.3 (2.22941 pix) Mean key point size 2.28446 pix Point colors 3 bands, uint8 Key points No Average tie point multiplicity 3.50597 Alignment parameters Accuracy High Generic preselection Yes Reference preselection Source Key point limit 60,000 Key point limit per Mpx 1,000 Tie point limit 0 Exclude stationary tie points Yes Guided image matching No Adaptive camera model fitting No Matching time 5 minutes 24 seconds Matching memory usage 10.08 GB Alignment time 29 minutes 30 seconds Alignment memory usage 4.17 GB Optimization parameters Parameters f, cx, cy, k1-k3, p1, p2 Adaptive camera model fitting No Optimization time 16 seconds Date created 2025:08:22 21:36:18 Software version 2.0.4.17434 File size 364.38 MB Depth Maps Count 930 Depth maps generation parameters Quality Medium Filtering mode Mild Max neighbors 16 Processing time 8 minutes 41 seconds Memory usage 1.76 GB Date created 2025:08:22 22:21:50 Software version 2.0.4.17434 File size 1.72 GB Point Cloud Points 70,581,971 Point attributes Color 3 bands, uint8 Normal Page 7
Confidence 4 - 67 Point classes Created (never classified) 70,581,971 Depth maps generation parameters Quality Medium Filtering mode Mild Max neighbors 16 Processing time 8 minutes 41 seconds Memory usage 1.76 GB Point cloud generation parameters Source data Depth maps Processing time 29 minutes 23 seconds Memory usage 10.28 GB Date created 2025:08:22 22:51:14 Software version 2.0.4.17434 File size 1.91 GB Model Faces 9,037,023 Vertices 4,483,052 Vertex colors 3 bands, uint8 Texture 4,096 x 4,096 x 10, 3 bands, uint8 Depth maps generation parameters Quality Medium Filtering mode Mild Max neighbors 16 Processing time 8 minutes 41 seconds Memory usage 1.76 GB Point cloud generation parameters Source data Depth maps Processing time 29 minutes 23 seconds Memory usage 10.28 GB Reconstruction parameters Surface type Arbitrary Source data Point cloud Interpolation Enabled Strict volumetric masks No Processing time 11 minutes 7 seconds Memory usage 10.43 GB Texturing parameters Mapping mode Generic Blending mode Mosaic Texture size 4,096 Page count 10 Enable hole filling No Enable ghosting filter Yes UV mapping time 3 minutes 35 seconds UV mapping memory usage 3.19 GB Blending time 7 minutes 34 seconds Blending memory usage 7.10 GB Blending GPU memory usage 4.69 GB Date created 2025:08:23 08:39:17 Software version 2.0.4.17434 File size 681.51 MB System Software name Agisoft Metashape Professional Software version 2.2.1 build 20641 Page 8
OS Windows 64 bit RAM 127.78 GB CPU Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz GPU(s) GeForce RTX 2080 Intel(R) UHD Graphics 630 Page 9
