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Accurate Computation of Zernike Moments Using Non-symmetry Anti-packing Image Representation

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4 Author(s)
Wei Huang ; Sch. of Comput. Sci. & Eng., Wuhan Inst. of Technol., Wuhan, China ; Fan Xiong ; Chuanbo Chen ; Mudar Sarem

Zernike moments (ZMs) have been widely used in pattern recognition and image analysis due to their merits of near-zero information redundancy and rotation invariance. However, the discrete sampling error introduced by state-of-the-art algorithms degrades their rotation invariance. In this paper, a novel algorithm for computing the accurate ZMs of binary images is presented. The new algorithm is based on non-symmetry anti-packing image representation (NAIR) and it computes the accurate ZMs of the whole image by summing up the ZMs of all rectangular regions without introducing the discrete sampling error. The experimental results in this paper show that the NAIR-based algorithm for accurate ZMs is faster than the state-of-the-art accurate algorithms.

Published in:

Information Processing, 2009. APCIP 2009. Asia-Pacific Conference on  (Volume:2 )

Date of Conference:

18-19 July 2009