Constraints on the design of template masks for edge detection
Constraints on the design of template masks for edge detection
复制标题
边缘检测模板掩模设计的约束
DOI：
10.1016/0167-8655(86)90032-2
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
E. R. Davies
中科院分区：
文献类型：
--
作者：
E. R. Davies
本文研究了用于边缘检测的模板掩模的设计，并发展了基于计算精度的基本理论。圆形的概念被证明是重要的设计“通用”模板匹配算子。揭示了许多设计约束：特别是发现，为了准确估计边缘大小和边缘方向，需要不同的掩模；在任何一种情况下，它们都需要根据相关的边缘配置文件进行定制。索贝尔系数的封闭形式为(frsol| 13√2−4)/7≏2.055。
This paper studies the design of template masks for edge detection, and develops the underlying theory with particular reference to computational accuracy. The concept of circularity is shown to be important for the design of ‘general purpose’template matching operators. A number of design constraints are enuciated: in particular it is found that different masks are required for the accurate estimation of edge magnitude and edge orientation; in either case they need to be tailored to the relevant edge profile. The Sobel coefficient is obtained in the closed form (frsol| 13√ 2− 4)/7≏ 2.055.