Method and device for sea surface oil spillage detection based on SAR (synthetic aperture radar) image
A technology for sea surface oil spill and image detection, which is applied in the fields of marine environment management, remote sensing images, and image processing, can solve the problems of ineffective denoising, increasing algorithm execution time, and reducing efficiency
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[0016] Exemplary implementations of the present application will be described below in conjunction with specific implementations with reference to the accompanying drawings.
[0017] figure 1 Shown is a method 100 for detecting sea oil spills based on SAR images according to an embodiment of the present application. As shown in the figure, in step S101, the pixel grayscale in the SAR image of the sea surface is subjected to threshold segmentation to convert the SAR image into a binary image and find out possible black spot regions.
[0018] Threshold segmentation is a region-based image segmentation technique, and its basic principle is to classify image pixels by setting a gray threshold. figure 2 A SAR image with an oil spill area is shown as an example. Visually, the black spot area and the background can be distinguished simply depending on the gray value of the image: usually, the area with a relatively low gray value is identified as the dark spot area, and the area w...
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