Corner Point Detection Using Region Proportion Filtering
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Solution Overview
Problem
Existing contour-based corner point detection methods in image processing have high computational complexity, making them inefficient for high-efficiency detection scenarios.
Innovation Solution
A method that determines corner points based on the region proportion of a predetermined region centered on the corner point, reducing the need for additional comparisons and traversals, and utilizing region of interest and polygon approximation to filter out interference points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If contour-based corner point detection method is used, then detection accuracy is improved, but computational complexity increases
Solution Approach 1:
The patent extracts only the necessary information (region proportion) from the contour data to determine corner points, eliminating the need for complex multi-point traversals and comparisons while maintaining detection accuracy
Solution Approach 2:
The patent changes the detection parameter from traditional multi-point geometric comparisons to a single region proportion metric, simplifying the computational process while preserving corner point identification accuracy
Data Source
AI summary
A corner point detection method and apparatus, which may improve the efficiency of corner point detection is disclosed. The corner point detection method includes: obtaining a plurality of corner points of a target object in an image to be detected, where the plurality of corner points are corner points on a contour of a first object in the image to be detected, and the contour of the first object includes a contour of the target object; obtaining a region proportion corresponding to each of the plurality of corner points, where the region proportion is a proportion of a region of the first object in a predetermined region centered on the corner point; and determining a target corner point of the target object from the plurality of corner points based on the region proportion.