Tool Mesh Denoise
Mesh denoising for grids, using the algorithm of Sun et al. (2007).
References:
Cardiff University: Filtering and Processing of Irregular Meshes with Uncertainties. online.
Stevenson, J.A., Sun, X., Mitchell, N.C. (2010): Despeckling SRTM and other topographic data with a denoising algorithm, Geomorphology, Vol.114, No.3, pp.238-252.
Sun, X., Rosin, P.L., Martin, R.R., Langbein, F.C. (2007): Fast and effective feature-preserving mesh denoising. IEEE Transactions on Visualization and Computer Graphics, Vol.13, No.5, pp.925-938.
- Author: O.Conrad (c) 2012
- Menu: Grid|Filter
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Grid | Grid, input | INPUT | - | - |
Output | Denoised Grid | Grid, output | OUTPUT | - | - |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
Threshold | Floating point | SIGMA | - | Minimum: 0.000000 Maximum: 1.000000 Default: 0.900000 |
Number of Iterations for Normal Updating | Integer | ITER | - | Minimum: 1 Default: 5 |
Number of Iterations for Vertex Updating | Integer | VITER | - | Minimum: 1 Default: 50 |
Common Edge Type of Face Neighbourhood | Choice | NB_CV | - | Available Choices: [0] Common Vertex [1] Common Edge Default: 0 |
Only Z-Direction Position is Updated | Boolean | ZONLY | - | Default: 0 |
Command-line
Usage: saga_cmd grid_filter 10 [-INPUT <str>] [-OUTPUT <str>] [-SIGMA <double>] [-ITER <num>] [-VITER <num>] [-NB_CV <str>] [-ZONLY <str>]
-INPUT:<str> Grid
Grid, input
-OUTPUT:<str> Denoised Grid
Grid, output
-SIGMA:<double> Threshold
Floating point
Minimum: 0.000000
Maximum: 1.000000
Default: 0.900000
-ITER:<num> Number of Iterations for Normal Updating
Integer
Minimum: 1
Default: 5
-VITER:<num> Number of Iterations for Vertex Updating
Integer
Minimum: 1
Default: 50
-NB_CV:<str> Common Edge Type of Face Neighbourhood
Choice
Available Choices:
[0] Common Vertex
[1] Common Edge
Default: 0
-ZONLY:<str> Only Z-Direction Position is Updated
Boolean
Default: 0