Classification of Rotated and Scaled Textured Images Using Invariants Based on Spectral Moments(Special Section on Digital Signal Processing)
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概要
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This paper describes a classification method for rotated and scaled textured images using invariant parameters based on spectral-moments. Although it is well known that rotation invariants can be derived from moments of grey-level images, the use is limited to binary images because of its computational unstableness. In order to overcome this drawback, we use power spectrum instead of the grey levels to compute moments and adjust the integral region of moment evaluation to the change of scale. Rotation and scale invariants are obtained as the ratios of the different rotation invariants on the basis of a spectral-moment property with respect to scale. The effectiveness of the approach is illustrated through experiments on natural textures from the Brodatz album. In addition, the stability of the invariants with respect to the change of scale is discussed theoretically and confirmed experimentally.
- 社団法人電子情報通信学会の論文
- 1998-08-25
著者
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YOSHIDA Yasuo
Department of Applied Quantum Physics, Kyushu University
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WU Yue
Department of Chemistry, University of Science and Technology of China
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Wu Yue
Department Of Chemistry University Of Science And Technology Of China
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Wu Yue
Department Of Electronics And Information Science Kyoto Institute Of Technology:(present Address)cen
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Yoshida Yasuo
Department Of Applied Quantum Physics Kyushu University
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Yoshida Yasuo
Department Of Applied Quantum Physics Faculty Of Engineering Kyushu University
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Yoshida Yasuo
Department Of Electronics And Information Science Kyoto Institute Of Technology
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