教師資料查詢 | 類別: 期刊論文 | 教師: 王英宏 Wang Ying-hong (瀏覽個人網頁)

標題:An Efficient Intra Prediction Algorithm for H.264/AVC High Profile
學年102
學期2
出版(發表)日期2014/04/01
作品名稱An Efficient Intra Prediction Algorithm for H.264/AVC High Profile
作品名稱(其他語言)
著者Bo Shen; Cheng, Kuo-Hsiang; Yun Liu; Wang, Ying-Hong
單位淡江大學資訊工程學系
出版者台北市中華民國電腦學會
著錄名稱、卷期、頁數電腦學刊=JOURNAL OF COMPUTERS 25(1)頁56-71
摘要A simple, highly efficient intra prediction algorithm to reduce the computational complexity of H.264/AVC High Profile is proposed. The algorithm combines two methods. The first method is a quant-based block-size selection decision that is based on the sum of the quantization AC coefficients among intra 8 × 8 mode predictions, combined with an error adjustment to select either intra 4 × 4 or intra 16 × 16 mode predictions. The second method is a novel direction-based prediction mode decision that is used to reduce the possible prediction modes for the rate-distortion (RD) optimization technique. Our experimental results demonstrate that the proposed algorithm reduces the encoding time by approximately 54% compared with that needed for an exhaustive search using the joint model reference software. The peak signal-to-noise ratio degradation is negligible, and the bit rate increment is minimal. Furthermore, the results show that our algorithm achieves a significant improvement in both computation performance and RD performance as compared with the existing algorithms.
關鍵字H.264/AVC;block size;prediction mode;rate-distortion optimization
語言英文(美國)
ISSN1991-1599
期刊性質國內
收錄於EI;
產學合作
通訊作者鄭國祥
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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