期刊論文
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 | en |
ISSN | 0253-3839 |
期刊性質 | 國內 |
收錄於 | |
產學合作 | |
通訊作者 | |
審稿制度 | |
國別 | TWN |
公開徵稿 | |
出版型式 | 紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50574 ) |