Basic Module - Feature Extraction - Coefficient of Variation

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Basic Module - Feature Extraction - Coefficient of Variation

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Purpose

 

Single-date and multi-temporal features based on first order statistics Intensity image(s) or interferometric image pairs can be derived from SAR data. These features enable, depending upon the targeted product, to detect and extract structures or temporal changes, which can be additionally used for the segmentation and/or classification purposes.

 

Technical Note

The Coefficient of Variation – defined as the local Intensity standard variation normalised by its average – enables, in a single image, to extract information about the local texture.

 

Input Files

 

Input file

Input file name of the Intensity data. This file is mandatory.

 

Parameters - Principal Parameters

 

Azimuth Window Size        

Odd size – in pixel unit – in Azimuth of the moving window.

 

Range Window Size        

Odd size – in pixel unit – in Range of the moving window.

 

Parameters - Global

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Parameters - Other Parameters

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Output Files

 

Output file

Output file name of the Coefficient of Variation data. This file is mandatory.

 

_cov        

Cofficient of Variation and associated header files (.sml, .hdr).

 

Details specific to the Units of Measure and Nomenclature of the output products can be found in the Data Format section.

 

 

General Functions

 

Exec

The processing step is executed.

 

Store Batch        

The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.

 

Close        

The window will be closed.

 

Help

Specific help document section.

 

 

Specific Function(s)

 

None.

 

See Also

 

Task, SARscapeBatch object, SARscapeBatch script example

 

References

 

None.