Processing sar imagery
AssigneeBAE SYSTEMS plc
InventorChristopher Jon Willis
Life of this patent
Estimating the term…
Abstract
A method and apparatus (1) for processing SAR imagery data, comprising: determining variance ratio data from the SAR imagery data; and processing, for use in change detection, the determined variance ratios data by making use of the F-distribution. The method may further comprise selecting a desired false alarm rate; and wherein making use of the F-distribution comprises determining a change detection threshold for the determined variance ratios data that is dependent upon the F-distribution and the desired false alarm rate. Another possibility is that making use of the F-distribution comprises using the F-distribution to determine probabilities for the determined variance ratios data.
Claims12
A method of processing SAR imagery data, the method comprising:
- determining variance ratio data from the SAR imagery data;
- and
- processing, for use in change detection, the determined variance ratios data by making use of the F-distribution.
Apparatus arranged to perform a method of processing SAR imagery data, the method comprising:
- determining variance ratio data from the SAR imagery data;
- and
- processing, for use in change detection, the determined variance ratios data by making use of the F-distrubution.
A program or plurality of programs arranged such that when executed by a computer system or one or more processors it/they cause the computer system or the one or more processors to operate in accordance with a method of processing SAR imagery data, the method comprising:
- determining variance ratio data from the SAR imagery data;
- and
- processing, for use in change detection, the determined variance ratios data by making use of the F-distribution.
A machine readable storage medium storing a program or plurality of programs arranged such that when executed by a computer system or one or more processors it/they cause the computer system or the one or more processors to operate in accordance with a method of processing SAR imagery data, the method comprising:
- determining variance ratio data from the SAR imagery data;
- and
- processing, for use in change detection, the determined variance ratios data by making use of the F-distribution.
Dependencies are inferred from the claim text.