摘要
提出了基于曲线演化一般方程的轮廓提取方法.构造了合适的曲线演化法向分量,使曲线能快速演化到对象轮廓边界即停止演化;曲线演化偏微分方程数值实现采用迎风差分方案.试验结果表明该方法不但提取效果好,而且算法结构简单,数值迭代收敛快.
A contour extraction method based on general partial differential equation （PDE） of curve evolution is proposed. In this method, a suitable normal component of curve evolution is set to make the curve evolution halted at the object contour border; the partial differential equation of curve evolution is solved using upwind difference numerical scheme. Experimental results show that this method not only has good extraction effect, but also is simple in structure of the algorithm and has rapid numerical iterative convergence.
出处
《三峡大学学报（自然科学版）》
CAS
2009年第4期96-98,共3页
Journal of China Three Gorges University：Natural Sciences
关键词
轮廓提取
曲线演化
偏微分方程
contour extraction
curve evolution
partial differential equation（PDE）
