Libo Yang; Keman Yu; Jiang Li; Shipeng Li
June 2005
The H.264 video coding standard provides considerably higher coding efficiency than previous standards do, whereas its complexity is significantly increased at the same time. In an H.264 encoder, the most time-consuming component is variable block-size motion estimation. To reduce the complexity of motion estimation, an early termination algorithm is proposed in this paper. It predicts the best motion vector by examining only one search point. With the proposed method, some of the motion searches can be stopped early, and then a large number of search points can be skipped. The proposed method can work with any fast motion estimation algorithm. Experiments are carried out with a fast motion estimation algorithm that has been adopted by H.264. Results show that significant complexity reduction is achieved while the degradation in video quality is negligible.
出版方： Institute of Electrical and Electronics Engineers, Inc.
版权： 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Libo Yang, Keman Yu, Jiang Li, and Shipeng Li. "An Effective Variable Block-Size Early Termination Algorithm for H.264 Video Coding". IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 15, NO. 6, JUNE 2005. P784-788
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