Using Dendronal Signatures for Feature Extraction and Retrieval

摘要

A dendrone is a hierarchical thresholding structure that can be automatically generated from a complex image. The dendrone structure captures the connectedness of objects and subobjects during successive brightness thresholding. Based on connectedness and changes in intensity contours, dendronic representations of ob- jects in images capture the coarse-to-fine unfolding of finer and finer detail, creating a unique signature for target objects that is invariant to lighting, scale, and placement of the object with in the image. Sub- dendrones within the hierarchy are recognizable as objects within the picture.