A discrete orthogonal polynomial method is put forward for curve fitting sub - pixel edge detection algorithm , which decomposes two - dimensional curve fitting into one - dimensional curve fitting , and improves the reliability and computation speed of the algorithms 引入离散正交多项式,提出了一种新的曲面拟合亚像素边缘检测算法。该算法将二维曲面拟合分解为一维曲线拟合,大大提高了算法的可靠性和速度。
In order to detect the edge contours of the object in images , several edge detectors are firstly introduced and we make a comparison of them in performance . a method for fitting a two - dimensional curve based on slopes of the curve is also shown 从图像序列中检测运动目标并估计其三维运动和结构,首先要从图像边缘提取开始,本文先对几种常用边缘检测算子性能进行综合比较,接着阐述了一种基于边界斜率的二维曲线形状描述方法。