摘要
(1)本文引入仿射变换。提出了一种用矩算子对异分辨率图象直接进行边界检测的方法。利用同分辨率图象正方形窗口的模板进行矩的计算,推导出了相应的边界参数公式。(2)本文提出了一种隐线性插值矩计算方法,得到一组与正方形窗口对应的非正方形模板,避免了费时的预插值过程。(3)对本文提出的方法进行了实验验证,并给出了实验结果。
In this paper; (1)By introducing affine transformation,a direct method based on geometrical moments is presented for edge detection in anisotropic image data.The moments are calculated using the masks of square window in a related isotropic image.And the formulae of edge parameters are deduced.(2) By implying linear interpolation within moments calculation,the operator is improved.A set of non-square masks corresponding to square window are obtained,thus avoiding the time consuming pre-interpolation of image data.(3)Some experiment results about the presented methods are given..
出处
《电子学报》
EI
CAS
CSCD
北大核心
1993年第10期14-21,共8页
Acta Electronica Sinica
关键词
边界检测
图象处理
医药学
Moment,Edge detection,Image processing
