Contour detection point adjustment method, device, medium and apparatus
By performing feature extraction and Fourier filtering on the target image and adjusting the position of contour points, the problem of inaccurate identification of contour lines in complex images in existing technologies is solved, achieving higher detection accuracy.
CN117495887BActive Publication Date: 2026-07-21SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
- Filing Date
- 2023-09-27
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing line contour detection methods cannot accurately identify complete contour lines in complex images.
Method used
By extracting features from the target image, setting an initial contour line, calculating the posterior probability of each contour point, performing Fourier filtering and iterative optimization, and adjusting the position of the contour points to approximate the true contour line.
Benefits of technology
It improves the accuracy of boundary contour point detection and obtains more accurate contour lines.
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Figure CN117495887B_ABST
Abstract
The application discloses a contour detection point adjustment method and device, a medium and equipment. The method comprises the following steps: performing feature extraction on a target image to obtain a feature image, and setting an initial contour line in the feature image, wherein the initial contour line divides the target image into a first region and a second region; acquiring a first posterior probability that a pixel point where each contour point on the initial contour line is located belongs to the first region and a second posterior probability that the pixel point belongs to the second region, and acquiring a position adjustment value of each contour point based on the first posterior probability and the second posterior probability; performing Fourier filtering processing on the position adjustment value of each contour point to obtain a position correction value corresponding to each contour point, and adjusting the position of the contour point based on the position correction value; acquiring a new position correction value corresponding to the contour point after the position is adjusted, adjusting the position of the contour point again based on the new position correction value, and obtaining a final contour point and contour line when a preset condition is met, so that the accuracy and adaptability of boundary contour point detection are improved.
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