教師資料查詢 | 類別: 期刊論文 | 教師: 江正雄 CHIANG JEN-SHIUN (瀏覽個人網頁)

標題:Novel fast block motion estimation using diamond-arc-hexagon search patterns
學年97
學期1
出版(發表)日期2008/09/01
作品名稱Novel fast block motion estimation using diamond-arc-hexagon search patterns
作品名稱(其他語言)
著者江正雄; Chiang, Jen-shiun; Lin, Han-ting; Hsia, Chih-hsien
單位淡江大學電機工程學系
出版者Taipei : Chinese Institute of Chemical Engineers
著錄名稱、卷期、頁數Journal of the Chinese Institute of Engineers=中國工程學刊 31(6), pp.955-966
摘要This work presents a novel block motion estimation (ME) approach, diamondarc-hexagon search (DAHS), which uses diamond, arc, and hexagon search patterns to accomplish the fast searching process. According to the characteristic of the center-based motion vector distribution for the real-world video sequence, DAHS employs a small diamond pattern extended hexagon search to refine the central area search. Furthermore for estimation in large motion situations, the strategy of the large diamond-to-arc search can preserve good performance. Experimental results indicate that DAHS is suitable for both (quasi-) stationary and large motion searches. DAHS outperforms the efficient three-step (E3SS) and hexagon-based search (HEXBS) in prediction quality, and improves the searching speed about 9% compared to E3SS. The proposed algorithm was tested using several sequences and delivered excellent performance in search speed and prediction of video quality. The DAHS can be applied to real-time video processes, such as H.264/MPEG-4 advanced video coding (AVC) and scalable video coding (SVC).
關鍵字motion estimation (ME);block‐matching algorithm;center‐based motion vector distribution;fast motion estimation algorithm
語言英文
ISSN0253-3839
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式紙本
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