Multi-temporal remote sensing image change detection method based on fusion strategy and FCM

Abstract

The invention discloses a multi-temporal remote sensing images change detection method based on fusion strategy and FCM, and the method comprises the steps: a detection range can be divided into a determined region and an undetermined region according to a change vector amplitude of multi-temporal remote sensing images and a multi-temporal spectral angle map; in the undetermined region, the change vector amplitude and SAM information are fused based on fuzzy division matrix addition; results of the determined region and the undetermined region are combined to obtain a final change detection result; wherein a fuzzy index in an FCM objective function in the undetermined region can be selected according to conflict indexes of MCV and SAM in the undetermined region to obtain a change detection result which is more stable and has higher precision than before. According to the invention, the change detection region is divided into the determined region and the undetermined region, detection results of two regions can be separately acquired through adopting a fusion strategy, so that the change detection results can be more reliable and more stable than before.

Description

technical field [0001] The invention relates to a multi-temporal optical remote sensing image change detection method, in particular to a multi-temporal remote sensing image change detection method based on a fusion strategy and FCM, and belongs to the technical field of remote sensing image processing. Background technique [0002] With the continuous accumulation of multi-temporal remote sensing data and the successive establishment of spatial databases, how to extract and detect change information from these remote sensing data has become an important research topic in remote sensing science and geographic information science. According to remote sensing images of different time phases in the same area, dynamic information such as cities and environments can be extracted to provide scientific decision-making basis for resource management and planning, environmental protection and other departments. [0003] Change detection of remote sensing images is to quantitatively an...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-temporal remote sensing image change detection method based on fusion strategy and FCM, which solves the problem of low detection accuracy of multi-temporal high-resolution multi-spectral remote sensing image changes

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