SAR image change detection method based on FPGA
A change detection and image technology, applied in the field of remote sensing image processing, can solve the problems of unsatisfactory network fitting data distribution, large consumption of storage and computing resources, long cycle iteration time, etc. The effect of improving the accuracy of change detection
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] The invention is a fast SAR image change detection method based on FPGA, and its hardware platform is an FPGA platform based on an open computing language OpenCL. The Open Computing Language OpenCL is a commonly used parallel programming framework for heterogeneous hardware systems.
[0020] refer to figure 1 , the realization steps of the SAR image change detection method based on FPGA of the present invention are as follows:
[0021] Step 1, input image.
[0022] Get two registered SAR images of the same area in different periods of any sizeX 1 and x 2 Input, input it into the host computer, and store it in the global memory of the FPGA, so that each work item of the FPGA can access the data.
[0023] Step 2, perform parallel Lee fil...
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