River Channel Extraction Method of SAR Image Combined with Gray Threshold Segmentation and Contour Morphological Recognition
A grayscale threshold and extraction method technology, applied in the field of computer vision, can solve the problems of interference, complexity, and noise sensitivity of segmentation results, and achieve the effect of strong anti-background noise, reduced complexity, and avoiding strong interference
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[0041] In order to understand the characteristics and technical content of the present invention in more detail, the implementation of the present invention will be described below in conjunction with specific examples, but the implementation of the present invention is not limited thereto.
[0042]In this embodiment, the spaceborne or airborne SAR is used to transmit electromagnetic waves to the target river area, and the echo signal fed back from the target river area is received. The spaceborne or airborne SAR image of the target river area is generated according to the echo signal. The SAR image That is, the original SAR image, such as figure 2 As shown, the present invention accurately extracts the river course by processing the SAR image.
[0043] In a preferred embodiment of the present invention, combined with figure 1 As shown, the SAR image channel extraction method of the described joint threshold segmentation and contour shape recognition comprises the following ...
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