摘要
文章将灰阶Sobel算子、中值滤波、三次样条插值和边缘细化算法相结合而提出的一种新图像边缘检测算法,该算法在实际应用中具有较好的边缘检测效果,不但能使目标的边缘连续、光滑,而且其几何形状和大小与实际目标更接近,有效地解决了模糊图像边缘检测的问题,并使得边缘定位的精度提高到亚象素级。
In this paper, a new image edge detection algorithm is proposed by using gray Sobel operator,median filtering,cubic spline interpolation and edge thinning.The algorithm has good edge detection effect.It not only can make the edge of object continue and smooth ,but also make the geometrical shape and the area of object be the approximate same.The problem of edge detection for the fuzzy image is solved,and the location precision is improved to sub-pixel.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第24期68-70,共3页
Computer Engineering and Applications
基金
广东省自然科学基金团队研究项目(编号:04205783)
关键词
边缘检测
三次样条插值
衰减因子
亚象素
edge detection,cubic spline interpolation,attenuation factor,sub-pixel
