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Visual pattern recognition by moment invariants:基于不变矩的视觉模式识别.pdf

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文档介绍:476 IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, VOL. 21, NO. 5, MAY 1999 [22] ?. Hu, “Visual Pattern Recognition by Moment Invariants,” IRE Trans. Information Theory, vol. 8, 179-187, 1962. [23] ?J. Bigun and . du Buf, “N-Folded Symmetries plex Moments in Gabor Space and their Application to Unsupervised Texture Segmentation,” IEEE Trans. Pattern Analysis and Machine Intelligence , vol. 16, no. 1, pp. 80-87, 1994. [24] ?H. Wely, Symmetry , Princeton Univ. Press, 1952. [25] ?W. Mi l l er, Symmetry Groups and their Application , Academic Press, 1972. [26] ?D. Shen, . Ip, and . Teoh, “Robust Detection of Skewed Symmetries bining Local and Semi-Local Affine Invari- ants,” IEEE Trans. Pattern Analysis and Machine Intelligence , sub- mitted for publication. [27] ?. Ip, D. Shen, and . Cheung, “Indexing and Retrieval of Binary Patterns Using plex Moments,” Proc. Second Int’l Conf. Visual Information System , California, Mar. 1997. [28] ? C. Sun, “Symmetry Detection Using Gradient Information,” Pattern Recognition Letters , vol. 16, no. 9, pp. 987-996, 1995. Direct Least Square Fitting of Ellipses Andrew Fitzgibbon, Maurizio Pilu, and Robert B. Fisher Abstract —This work presents a new efficient method for fitting ellipses to scattered data. Previous algorithms either fitted general conics or putationally expensive. By