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Multiprimitive segmentation of planar curves-a two-level breakpoint classification and tuning approach

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2 Author(s)
Hsin-Teng Sheu ; Dept. of Electr. Eng., Nat. Taiwan Univ. of Technol., Taipei, Taiwan ; Wu-Chih Hu

A breakpoint classification and tuning approach is proposed for the multiprimitive segmentation of planar curves, and cockhead-like graph is suggested to evaluate the multiprimitive segmentation algorithms. The breakpoints are divided into corners and smooth joints and the types of the segments on both sides of a breakpoint are identified. Then, a joint tuning procedure is exercised to merge/split segments and adjust the joint locations. The carefully designed cockhead-like graph includes all possible combinations and parameters of line and are segments and serves as a benchmark to test the algorithms. The proposed scheme is simple, fast, threshold-free and robust to quantization and preprocessing errors, thus allowing it to be employed in a variety of applications such as matching and recognition. Test against the suggested benchmark and comparison with those in the literature assures the superiority of the method suggested

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Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:21 ,  Issue: 8 )