<< Click to Display Table of Contents >> Navigation:  Help Content > Basic Module > Feature Extraction > Basic Module - Feature Extraction - Ratio

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

Performing the ratio between coregistered or geocoded multi-temporal Intensity images enables to easily visualize the temporal changes. The input images must have the same pixel size and number.

 

In case more than 2 input files are entered, the ratio is performed on the pairs of subsequent input images (1st/2nd, 2nd/3rd, etc.); the output files are named with progressive numbers from 0 onwards.

 

Input Files

 

Input file list

Input file list of the coregistered or geocoded (_geo) Intensity data. This file list is mandatory.

 

Output Files

 

Output file

Output root name of the Ratio data. This root name is mandatory.

 

_rto        

Ratio data 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.