A new block-matching algorithm based on an adaptive search area adjustment using spatio-temporal correlation

作     者：Oh, HS Lee, CH Lee, HK Jeon, JH 

作者机构：Elect & Telecommun Res Inst Visual Informat Res Team Virtual Real Res & Dev Ctr Taejon 305350 South Korea Korea Adv Inst Sci & Technol Dept Comp Sci Yusong Gu Taejon 305701 South Korea Korea Telecom Internet Business Div Commun Serv Planning Ctr Pundang Gu Songnam 463711 Kyonggi Do South Korea 

出 版 物：《IEEE TRANSACTIONS ON CONSUMER ELECTRONICS》 (IEEE Trans Consum Electron)

年 卷 期：1999年第45卷第3期

页      面：745-752页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

主　　题：block-matching algorithm motion estimation video coding 

摘      要：The motion estimation & compensation technique is widely used for video coding applications but the real-time motion estimation is not easy due to its enormous computations. In this paper, a new adaptive reduction of search area for the block-matching algorithm is presented to reduce the computational complexity of the full search block-matching algorithm for low bit-rate video coding. The proposed method exploits the correlation of successive video frames and adjusts the size of search area depending on the displaced block difference and the block classification information of the block in the previous frame. Simulation results show that the proposed algorithm has similar mean square error performance to the full search block-matching algorithm but only requires less a half computational complexity than the full search algorithm.