Discontinuity-preserving optical flow algorithm
Yuan Lei;Li Jinzong;Li Dongdong
【期刊名称】《系统工程与电子技术（英文版）》 【年(卷),期】2007(018)002
【摘要】A modification of Horn and Schunk's approach is investigated, which leads to a better preservation of flow discontinuities.It improves Horn-Schunk model in three aspects: (1) It replaces the smooth weight coefficient in the energy equation by the variable weight coefficient.(2) It adopts a novel method to compute the mean velocity.The novel method also reflects the effect of the intensity difference on the image velocity diffusion.(3) It introduces a more efficient iterative method than the Gauss-Seidel method to solve the associated Euler-Lagrange equation.The experiment results validate the better effect of the improved method on preserving discontinuities. 【总页数】8页(347-354)
【关键词】Optical flow;Image sequences;Differential methods;PNSR 【作者】Yuan Lei;Li Jinzong;Li Dongdong
【作者单位】Harbin Inst. of Technology, Harbin 150001, P.R.China;Harbin Inst. of Technology, Harbin 150001, P.R.China;Harbin Inst. of Technology, Harbin 150001, P.R.China 【正文语种】中文 【中图分类】O1
Discontinuity-preserving optical flow algorithm
