Study on change detection for multi-temporal polarimetric SAR images

Multi-temporal single polarimetric synthetic aperture radar (SAR) images are performed change detection and it doesnpsilat wholly reflect the change information of ground objects. Through analyzing the features of multi-polarimetric SAR images, the results show that the multi-polarimetric SAR image change detection ought to choose different polarimetric data, polarimetric total power data or echo polarimetric power ratio data in terms of different purpose and the effect of the former two states is better. Finally, the difference value two-threshold method is performed the change detection experiments with the multi-polarimetric data of Convair-580 C/X-SAR of Canada, and the experimental results obtain the expectant effect.