Conditional differential chain coding for lossless representation of object contour

作     者：Chung, JW Moon, JH Kim, JK 

作者机构：Korea Adv Inst Sci & Technol Dept Elect Engn Yusong Ku Taejon 305701 South Korea Hyundai Elect Ind Co Ltd Multimedia R&D Ctr Ichon 467860 Kyoungki Do South Korea 

出 版 物：《ELECTRONICS LETTERS》 (电子学快报)

年 卷 期：1998年第34卷第1期

页      面：55-56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：directional symbols lossless representation data compression Codes Optical information, image and video signal processing object contour Information theory conditional probability video coding conditional differential chain coding Computer vision and image processing techniques probability Other topics in statistics 

摘      要：A new conditional differential chain coding (CDCC) scheme is presented for lossless representation of an object contour. It uses the conditional probability of directional symbols depending on the context of preceding contour directions. Experimental results show that the CDCC reduces coding bits by 5-10% when compared with the conventional differential chain coding (DCC) which does not use conditional probability.