The number of points that are generated during step 2. Point Cloud and Mesh depends on several factors such as the image size, image content, image overlap, and processing options. Therefore, it is not possible to precisely estimate the number of points generated during step 2. However, some statistics about the number of points of the point cloud could be made and are shown below.
Estimated number of points observed in projects with 14 MP images
The used options for step 2. Point Cloud and Mesh:
- Image Scale is 1/2 (Half image size).
- Point Density is Optimal.
- Minimum number of Matches: 3
|Number of images||Number of points||LAS file size|
|250||20 - 50 million||0.3 - 1.0 GB|
|500||40 - 60 million||1.2 - 1.9 GB|
|1000||80 - 120 million||2.5 - 3.8 GB|
Estimated impact of processing options on the number of points generated
There are 2 processing options for step 2. Point Cloud and Mesh that have an impact on the number of points generated:
- Image Scale
- Point Density
For more information about the processing options: Menu Process > Processing Options... > 2. Point Cloud and Mesh > Point Cloud.
The following table summarizes by which factor the number of points obtained with the default options changes when changing the Image Scale and Point Density.
|Image Scale \ Point Density||1 (Original image
|1/2 (Half image
|1/4 (Quarter image
|1/8 (Eighth image
|High (Slow)||x16||x4||Same as default||÷4|
|Low (Fast)||Same as default||÷4||÷16||÷64|