一级黄色片免费播放|中国黄色视频播放片|日本三级a|可以直接考播黄片影视免费一级毛片

高級搜索

留言板

尊敬的讀者、作者、審稿人, 關(guān)于本刊的投稿、審稿、編輯和出版的任何問題, 您可以本頁添加留言。我們將盡快給您答復。謝謝您的支持!

姓名
郵箱
手機號碼
標題
留言內(nèi)容
驗證碼

一種基于二維直方圖的H.264/AVC快速幀內(nèi)預測判決算法

謝晶,  賈克斌

謝晶, 賈克斌. 一種基于二維直方圖的H.264/AVC快速幀內(nèi)預測判決算法[J]. 電子與信息學報, 2005, 27(7): 1053-1057.
引用本文: 謝晶, 賈克斌. 一種基于二維直方圖的H.264/AVC快速幀內(nèi)預測判決算法[J]. 電子與信息學報, 2005, 27(7): 1053-1057.
Xie Jing, Jia Ke-bin. A Fast Intra-frame Prediction Algorithm Based on Two-Dimensional Histogram for H.264/AVC[J]. Journal of Electronics & Information Technology, 2005, 27(7): 1053-1057.
Citation: Xie Jing, Jia Ke-bin. A Fast Intra-frame Prediction Algorithm Based on Two-Dimensional Histogram for H.264/AVC[J]. Journal of Electronics & Information Technology, 2005, 27(7): 1053-1057.

一種基于二維直方圖的H.264/AVC快速幀內(nèi)預測判決算法

A Fast Intra-frame Prediction Algorithm Based on Two-Dimensional Histogram for H.264/AVC

  • 摘要: 最新的視頻壓縮標準H.264/AVC具有極高的壓縮率,但由于其算法極其復雜,編碼時間較長,無法達到實時應(yīng)用的要求。該文針對其幀內(nèi)預測算法的特點,提出了一種基于二維直方圖的快速幀內(nèi)預測算法。該算法在進行幀內(nèi)預測之前先對宏塊預判,從兩種幀內(nèi)預測模式中選擇一種,從而減少了算法的復雜度,提高了壓縮速度。實驗結(jié)果表明,所提的算法在碼率只有少許增加的情況下,編碼速度提高了16.26%,PSNR值基本不變。
    Abstract: H.264/AVC is the newest video coding standard with high compression efficiency. Because it will take a long time to code with extremely complex algorithm, it can not achieve real-time application. In this paper, according to the characteristic of intra-frame prediction algorithm, a fast algorithm based on 2D-histogram is proposed. This algorithm will predict every macroblock before coding, then selecting one of the two prediction modes. Therefore, the complexity of algorithm and coding time are reduced dramatically. Experimental results show that the coding speed of proposed algorithm is 16.26% faster than that of H.264/AVC, with a little bit increase, and the PSNR is invariable.
    • HTML全文
  • Joint video team (JVT) of ITU-T VCEG and ISO/IEC MPEG.Final draft international standard of joint video specification[S](ITU-T Rec. H.264/ISO/IEC 14496-10). JVT-G050, 05, 2003.[2]Wiegand T, Gary J, Sullivan G J, et al.. Overview of the H.264/AVC video coding standard. IEEE Trans. on Circuits and Systems for Video Technology, 2003, 13(7): 560 - 576.[3]Pan Feng, Lin Xiao, et al.. Fast mode decision for intra prediction.JVT-G013 in ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6,JVT 7th Meeting, Pattaya, Thailand, March 2003.Meng Bojun.[J].Au O C, et al.. Efficient intra-prediction mode selection for 44 blocks in H.264. In ICME03 Proceedings of the 2003 International Conference on Multimedia and Expo,Baltimore, Maryland.2003,:-Changsung K, Qing L, Jay K. Fast intra-prediction model selection for H.264 codec. In SPIE International Symposium ITCOM 2003, Orlando, Florida, July 2003.[4]Teng Chia-Yuan. An improved block prediction mode for H.264/AVC intra-frame prediction. In Proceedings of Data Compression Conference, Snowbird, Utah, 2004:569 - 569.[5]Meng Bojun, Au O C. Efficient intra-prediction algorithm in H.264. In Proceedings of the 2003 International Conference on Image Processing, Barcelona, Spain, 2003, vol.3:837 - 840.[6]甑文智,范九倫,謝維信.基于二維直方圖的圖像模糊聚類分割新方法.計算機工程與應(yīng)用,2003,15(39):86-88.[7]李弼程,柳葆芳.基于二維直方圖的模糊門限分割方法.數(shù)據(jù)采集與處理,2000,3(15):324-329.[8]Horowitz M, Joch A, Kossentini F, Hallapuro A. H.264/AVC baseline profile decoder complexity analysis[J].IEEE Trans. on Circuits and Systems for Video Technology.2003, 13(7):704-716
  • 加載中
計量
  • 文章訪問數(shù):  2447
  • HTML全文瀏覽量:  85
  • PDF下載量:  1373
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2004-11-29
  • 修回日期:  2004-04-07
  • 刊出日期:  2005-07-19

目錄

    /

    返回文章
    返回