“…As shown in figure 2, through quantitative and qualitative comparison with the corresponding contour detection method, it is found that this method makes full use of the multi-source feature signal fusion coding ability under multi-scale, so that the main contour of the detected image is complete and continuous, and the irrelevant texture around the contour is effectively suppressed , which is consistent with the corresponding manual marking diagram. This method selects RCF [11] , COB [12] , HED [13] , HFL [14] , DeepContour [15] , DeepEdge [16] , OEF [17] and other deep learning methods in contour detection applications, And MCG, EGB, Canny, MShift and other traditional methods based on biological vision mechanism [18,19] to compare the experimental results. As shown in Figure 3 and Table 1, the evaluation indicators of the detection performance of each method are displayed.…”