Synthesized affine invariant function for 2D shape recognition

Authors:
Wei-Song Lin;Chun-Hsiung Fang
Affiliations:
Department of Electrical Engineering, National Taiwan University, No. 1, Sector 4, Roosevelt Road, Taipei 106, Taiwan, ROC;Department of Electrical Engineering, National Taiwan University, No. 1, Sector 4, Roosevelt Road, Taipei 106, Taiwan, ROC
Venue:
Pattern Recognition
Year:
2007

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Abstract

By defining the weighted wavelet synthesis, the synthesized feature signals of an interesting shape are extracted to derive the innovative synthesized affine invariant function (SAIF). The synthesized feature signals hold the shape information with minimum loss by excluding simply the translation dependent and noise-contaminated bands. The SAIF is shown excellent in the invariance property and representative in describing the original shape for automated recognition. Experimental results demonstrate that automated shape recognition based on the SAIF achieves high correctness and significantly outperforms those using conventional wavelet affine invariant functions.