Two-dimensional grey-level models for an active shape model
Shuqian Luo · Beijing shengwu yixue gongcheng · 2007
Active shape model(ASM) is a popular statistical shape model for objects localization.It combines a Point distribution model(PDM) and local grey-level model of each landmark point to achieve reliable and accurate result in image interpretation.However,in 2D images,the one-dimensional profile grey-level models lose the information in other directions.In this paper,we modeled the grey-level information of the k×k square neighbor region around each point,hoping to take more information into account.