| 研究生: |
林政緯 Lin, Cheng-Wei |
|---|---|
| 論文名稱: |
基於動態門檻之H.264/AVC改良區塊動作估測法 Enhanced Block Motion Estimation Based on Dynamic Threshold Schema for H.264/AVC Video Coding |
| 指導教授: |
郭淑美
Guo, Shu-Mei |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 資訊工程學系 Department of Computer Science and Information Engineering |
| 論文出版年: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 英文 |
| 論文頁數: | 81 |
| 中文關鍵詞: | H.264 、先進數位編碼 、暴力資料率-失真之最佳化演算法 、動作估測 、可變區塊大小 |
| 外文關鍵詞: | H.264, advanced video coding, rate distortion optimization, variable block size, motion estimation |
| 相關次數: | 點閱:154 下載:1 |
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在這篇論文裡,基於動態門檻之H.264/AVC 改良區塊動作估測法的方式得到較高的編碼效率。這個方法利用了視訊物件裡的空間和時間特性找到較佳的動態門檻值。根據所提出的方法,一些動作的搜尋能夠較早的結束,並且能夠省下大量的搜尋點。實驗數據顯示了藉著動態門檻機制能夠達到顯著的複雜度下降且編碼損失是可忽略的。
The dynamic threshold schema-based enhanced block motion estimation for H.264/AVC video coding is proposed in this paper to have a higher coding efficiency. It utilizes spatial and temporal characteristics of video objects to find the better dynamic threshold value. Based on the proposed method, some of the motion searches can be stopped early, and then a large number of search points can be skipped. The experimental results show the significant complexity reduction is achieved with negligible coding loss by dynamic threshold schema.
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