Optimal vertex adjustment method using a Viterbi algorithm for vertex-based shape coding

作     者：Lee, JH Chung, JW Kim, JK 

作者机构：Korea Adv Inst Sci & Technol Dept Elect Engn Taejon 305701 South Korea Hyundai Elect Ind Co Ltd Informat & Telecommun R&D Ctr Seoul 137070 South Korea 

出 版 物：《ELECTRONICS LETTERS》 (电子学快报)

年 卷 期：1999年第35卷第9期

页      面：706-707页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：vertex selection method approximation distortion reduction Image and video coding Viterbi decoding vertex-based shape coding Viterbi algorithm image coding vectors Computer vision and image processing techniques optimal vertex adjustment method 

摘      要：An optimal vertex adjustment method is presented for vertex-based shape coding. The method optimally shifts the vertices, selected by a conventional vertex selection method, within the window that satisfies the allowable maximum distortion using a Viterbi algorithm. Experimental results show that the proposed method reduces the approximation distortion of the contour by similar to 30% for the same rate over a wide range of distortion, compared with the conventional method.