New algorithm for matching 2D objects

Yasser El-Sonbaty; Mohammed A. Ismail; Essam A. El-Kwae

doi:10.1117/12.467996

22 May 2002 New algorithm for matching 2D objects

Yasser El-Sonbaty, Mohammed A. Ismail, Essam A. El-Kwae

Proceedings Volume 4667, Image Processing: Algorithms and Systems; (2002) https://doi.org/10.1117/12.467996
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

In this paper a new algorithm for recognizing 2D objects is introduced. The proposed algorithm is based on searching for first three matched connected lines in both input and model objects, then left and right lines in both input and model objects are marked as matched lines as long as they have the same relations of distance ratio and angle to the last matched and connected lines. The process is repeated until there is no more three matched connected lines. The ratio_test is then performed to detect scattered matched points and lines. The new algorithm is invariant to translations, rotations, reflections and scale changes and has O(m.n) as its computational complexity.

Citation Download Citation

Yasser El-Sonbaty, Mohammed A. Ismail, and Essam A. El-Kwae "New algorithm for matching 2D objects", Proc. SPIE 4667, Image Processing: Algorithms and Systems, (22 May 2002); https://doi.org/10.1117/12.467996

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