Department of Computer Science and the Department of Radiology, University of North Carolina, Chapel Hill, NC 27514.
IEEE Trans Pattern Anal Mach Intell. 1987 Apr;9(4):505-11. doi: 10.1109/tpami.1987.4767938.
A method is proposed that produces a shape description in the form of a hierarchy by scale of simple symmetric axis sequences. An axis segment that is a child of another has smaller scale and is seen as a branch of its parent. The scale value and parent-child relationship are induced by following the symmetric axis under successive reduction of resolution. The result, in two or three dimensions, is a figure¿rather than boundary¿oriented shape description that has natural segments and is insensitive to noise in the object description. The general approach of hierarchy production by following a feature through successive resolution reduction will be presented, as will methods of resolution reduction and computer implementation. Also, the relation of this figure-based shape description to those based on boundary curvature will be briefly discussed.
提出了一种通过简单对称轴序列的比例生成形状描述的方法，该方法以层次结构的形式呈现。作为另一个轴段的子级的轴段具有较小的比例，并被视为其父级的分支。通过在连续降低分辨率的情况下跟踪对称轴，可以引出轴段的比例值和父子关系。其结果在二维或三维中是一个图形而不是边界定向的形状描述，该描述具有自然的分段并且对对象描述中的噪声不敏感。将介绍通过连续降低分辨率跟踪特征来生成层次结构的一般方法，以及分辨率降低和计算机实现的方法。此外，还将简要讨论基于图形的形状描述与基于边界曲率的形状描述之间的关系。
