A digital curve recognition method applicable to non-singly connected curves
Teruyuki Kaneko, Tetsuo Sagara, Takashi Takeda, Ryuzo Takiyama · Systems and Computers in Japan · 2000
A new feature extraction technique for digital curves is devised and used in the proposed digital curve recognition method. The feature proposed in this paper is based on the concept of the “self-distance function” of a digital curve and can also be applied to non-singly connected curves. By measuring the differences between self-distance functions, figures that are invariant in position, scale, and rotation can be recognized. In addition, the results of tests are presented. © 2000 Scripta Technica, Syst Comp Jpn, 31(5): 24–30, 2000