Edge detection and thinning in time-varying image sequences using spatio-temporal templates

摘要

A new computational paradigm for the extraction of spatio-temporal edge information in a sequence of images is presented. Extracted edge information consists of an edge type, orientation, and motion class. A set of three-dimensional (two-dimensional spatial and one-dimensional temporal) templates is developed. The extracted edge features facilitate efficient thinning of edge data. Sample experimental results are shown. The proposed approach forms the preprocessing stage of an image motion understanding system.