提出了基于图像内容特征的主动网格生成方法和网格节点运动估计方法,网格的边界与运动场景的边界有很好的一致性,避免了相同三角形小片内存在不同的运动物体,克服这种情况下运动估计失效的问题.块匹配的运动补偿方法的缺陷在于块效应,基于主动网格的运动补偿消除了块效应和边界不连续现象,运动场的估计与实际运动场有很好的近似,对局部运动也有更好的逼近.

A new active mesh generation method based on image content and mesh node motion vector estimation approach are presented. The mesh-design procedure ensures that the edge of active mesh conforms to objects' edges, which will avoid the failure of motion estimation if different moving objects exist in the same triangular patch. Active mesh can ideally overcome the block artifacts, because it is a continuity-preserving transforms. Active mesh can get more reliable approximation of the real motion field even on local moving details.