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Purpose

 

This panel enables to set the default processing parameters, which are used in those functions related only to the Ship features functionalities.  

 

Technical Note

 

Temporal features are extracted on geocoded time-series Intensity images.

 

The "Input file list" is automatically sorted in chronological order before generating the required products.

 

The ratio related products are generated by considering the newer divided the older acquisition. It means that, in the chronologically ordered input list, the ratio values come from 2nd/1st, 3rd/2nd, etc.

 

The "Generate Dates" flag allows creating the following outputs:

•Max Date - Date corresponding to the highest detected backscatter in the input series.

•Min Date - Date corresponding to the lowest detected backscatter.

•Max Ratio Date - Consecutive date pair corresponding to the highest detected backscatter ratio.

•Min Ratio Date - Consecutive date pair corresponding to the lowest detected backscatter ratio.

 

Parameters - Multitemporal Features

 

Target Window Size [m]

Dimension of the Target(s) to detect (in meters).

 

Guard Window Size [m]

Defines a window around the target window that is not taken into account in the background estimation (in order to remove double targets) (in meters).        

 

Background Window Size [m]

Size of the window used to estimate background value (in meters).

 

Probability Of False Alarm [0-1]

Probability of getting a false alarm (ship detected when there is no ship). This value ranges between 0 and 1.

 

Central Pixel Minimum Sigma0 [dB]

Target window central pixel minimum Sigma0 value in order to be considered as a target.

 

Minimum Ship size

Pixel group below this minimum threshold are not considered as ships (in pixels).

 

Generate KML

Setting this flag to true, a Google Earth .kml file of the results is created.

 

Land Mask Buffer Size [m]

It creates a buffer polygon of a specified distance around the land mask provided.

 

Use Custom Distance Threshold

By setting this flag the user will have the possibility to set a custom Distance Threshold.

 

Distance Threshold [m]

Maximum acceptable distance between a ship position and the corresponding ais track.

 

General Functions

 

Load Preferences

It allows loading specific Preferences tthirteen different settings  as possible alternative default processing values.

 

Load

It allows loading an .xml, .sml or .txt file where SARscape common Preferences where previously saved.

 

Save

It allows saving SARscape common Preferences for a future processing using the same preferences characteristics.

 

Help        

Specific help document section.

 

 

Ok        

The selected default processing parameters are loaded.

 

Cancel        

The window will be closed.

 

Specific Function(s)        

 

None.

References

 

None.