Some Interesting SAR Change Detection Studies
نویسنده
چکیده
Performance results of coherent change detection (CCD) and non-coherent change detection (NCD) algorithms are presented using high-resolution synthetic aperture radar (SAR) imagery gathered by the General Dynamics Data Collection System. CCD performance comparisons using phase-only imagery versus complex (amplitude and phase) imagery are also presented. A new image quality metric, the “Universal Image Quality Index” is described and used to detect changes between a SAR intensity (reference versus test) image-pair; the change image is demonstrated to be quite similar, visually, to the corresponding CCD image – and the difference image is shown to be quite small in magnitude..
منابع مشابه
Detection of Targets and Change in SAR Imagery: The C-CORE Experience
Spaceborne Synthetic Aperture Radar (SAR) is an active remote-sensing instrument that provides day-andnight, all-weather, broad-area imaging capabilities at high resolutions. Recently available space-borne SAR platforms enable a growing number of applications in movement detection, ice monitoring, encroachment monitoring, subsidence monitoring, and target recognition, just to name a few. C-CORE...
متن کاملChange Mechanism Analysis and Integration Change Detection Method on Sar Images
Synthetic aperture radar (SAR) image change detection is a very complex problem like SAR imaging mechanism. Every change detection method has its advantage and disadvantage, and there are no optimal change detection approaches. If general means is directly applied to SAR image change detection, the results are usual no ideal. Sometimes, for a pair of multitemporal SAR images, different detectio...
متن کاملSurvey on Change Detection in SAR Images
Change detection in remote sensing images becomes more and more important for the last few decades, among them change detection in Synthetic Aperture Radar (SAR) images are having some more difficulties than optical ones due to the fact that SAR images suffer from the presence of the speckle noise. In this paper the Systematic survey of the common processing steps and core decision rules for ch...
متن کاملAdvances in SAR Change Detection
SAR change detection performance using coherent change detection (CCD) and non-coherent change detection (NCCD) algorithms is demonstrated using high-resolution synthetic aperture radar (SAR) imagery gathered by the General Dynamics Data Collection System. CCD performance comparisons using phaseonly imagery versus complex (amplitude and phase) imagery are also presented. A new image quality met...
متن کاملChange detection from synthetic aperture radar images based on neighborhood-based ratio and extreme learning machine
Change detection is of high practical value to hazard assessment, crop growth monitoring, and urban sprawl detection. A synthetic aperture radar (SAR) image is the ideal information source for performing change detection since it is independent of atmospheric and sunlight conditions. Existing SAR image change detection methods usually generate a difference image (DI) first and use clustering me...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012