Extraction of Thermos Cup Contour Based on Optimized Edge Feature and Line Detection

In order to solve the problem that the main contour of thermos cups is hard extracted in complex backgrounds, a method, which combines feature extraction and integration of line detection, is proposed. The Faster-RCNN deep neural network optimized by resnet50 is used first to perform preliminary extraction of the thermos cup region in the image. The anisotropic diffusion filtering based on the improvement of gradient contrast is proposed to solve the interference texture in the extracted region, which can effectively suppress textures based on contour preservation. By analyzing the contour characteristics of the thermos cup, the Hough straight line detection algorithm based on the two-way three-neighborhood grouping and the least square are used to extract contours. The results indicate that this method can effectively extract the main contour of the thermos cup in different scenes.

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