A unifying perspective of coherent and non-coherent change detection

Joshua N. Ash

doi:10.1117/12.2054338

13 June 2014 A unifying perspective of coherent and non-coherent change detection

Joshua N. Ash

Proceedings Volume 9093, Algorithms for Synthetic Aperture Radar Imagery XXI; 909309 (2014) https://doi.org/10.1117/12.2054338
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

In this paper we present a new generalized family of change detection algorithms for SAR imagery that includes traditional non-coherent and coherent processing as special cases. The parameterized family of algorithms, referred to as partially coherent change detection (PCCD), allows the user to select the level of coherence desired in the change detection algorithm. This and other settings of the algorithm enable one to specify the types of changes that are significant, thereby reducing the number of false alarms due to insignificant changes—such as foliage motion. Algorithm settings may also be applied spatially in order to support spatially varying levels of coherence based on scene content. Examples from synthetic and measured imagery demonstrate the efficacy of the new family of algorithms.

Citation Download Citation

Joshua N. Ash "A unifying perspective of coherent and non-coherent change detection", Proc. SPIE 9093, Algorithms for Synthetic Aperture Radar Imagery XXI, 909309 (13 June 2014); https://doi.org/10.1117/12.2054338

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