摘要
提出基于曲线累加弦长来检测角点 ,可以使得检测结果具有旋转不变性 ,隐式精化曲线策略可以显著改善角点检测算法的计算精度 ,从而增强角点检测结果的可靠性 具体给出了一种基于精化曲线累加弦长的角点检测方法 ,并对其可行性进行数学论证 ,同时提出了一种区别圆角和尖角的实用技术 实验结果表明 。
Corner detection based on accumulative chord length is invariant to rotation transformations, while the implicitly refining strategy of digital curves can improve computational precision and enhance the reliability of corner detection significantly The algorithm is presented, and its feasibility is verified mathematically, with which a useful technique is developed to distinguish sharp corners from rounded corners Experiments show that the new approach is efficient for solving practical problems
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2004年第7期939-943,共5页
Journal of Computer-Aided Design & Computer Graphics
基金
国家"八六三"高技术研究发展计划基金 ( 2 0 0 2AA4110 3 0 )资助
关键词
数字化曲线
角点检测
计算机视觉
离散曲率
累加弦长
digital curve
corner detection
computer vision
discrete curvature
accumulative chord length
