ABSTRACT
Prior to object recognition, one must have an internal representation of it, which is suited for matching its features to image descriptions. Object representation has been playing an important role in many applications, such as image analysis, pattern recognition, computer graphics, and computer animation. There are many approaches to object representation in the literature. This chapter is organized as follows. Section 8.1 introduces object representation and tolerances by MM. Section 8.2 presents the skeletonization or medial axis (MA) transformation. Section 8.3 describes the morphological shape description called geometric spectrum.
