文化大學機構典藏 CCUR:Item 987654321/35860
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 46833/50693 (92%)
造访人次 : 11849044      在线人数 : 458
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧：
  • 您可在西文检索词汇前后加上"双引号"，以获取较精准的检索结果
  • 若欲以作者姓名搜寻，建议至进阶搜寻限定作者字段，可获得较完整数据
    •  进阶搜寻
    主页 ‧ 登入 ‧ 上传 ‧ 说明 ‧ 关于CCUR ‧ 管理 到手机版


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/35860


    题名: Switching error concealment algorithm based on optimal decisions for performance and complexity
    作者: Lin, TL (Lin, Ting-Lan)
    Chen, WC (Chen, Wen-Chih)
    Fan, CY (Fan, Chang-Yi)
    Lee, HC (Lee, Hsin-Chin)
    Ding, TL (Ding, Tsai-Ling)
    Wang, CJ (Wang, Chuan-Jia)
    Chen, SL (Chen, Shih-Lun)
    Hsia, CH (Hsia, Chih-Hsien)
    贡献者: 電機系
    关键词: Motion vector recovery
    H.264
    Video packet loss
    Error concealment
    日期: 2016-09
    上传时间: 2017-04-11 14:07:14 (UTC+8)
    摘要: The proposed paper discusses two switching error concealment algorithms: SECA (Switching Error Concealment Algorithm) and OSECA (Optimal Switching Error Concealment Algorithm) to efficiently switch among three existing error concealment methods for optimal performance and complexity tradeoff. SECA uses the motion vector statistics in the neighborhood of the lost MB (Macro Block) to make the switching decision. SECA is better than the best-PSNR method by 0.14 dB in PSNR and better than the best-win-rate method by 1.49 % in win rate, with 63 % time complexity reduction. OSECA further considers the correlation between surrounding pixels of the lost MB and the pixels in the reference frame. An optimization problem is formulated to derive the optimal decision thresholds. For OSECA, the PSNR performance is further improved by 0.24 dB from SECA and the time complexity reduction from the existing work can increase to 69 %. On different testing sets of the lost MBs, the proposed SECA and OSECA perform consistently against existing methods. Compared to SECA in the testing sets, OSECA has larger PSNR improvement (by up to 0.23 dB) against the best-PSNR method, and has larger time complexity reduction (by up to 71 %) against existing method.
    關聯: MULTIMEDIA TOOLS AND APPLICATIONS 卷: 75期: 18 頁碼: 11199-11219
    显示于类别:[電機工程系] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML298检视/开启


    检视Licence

    在CCUR中所有的数据项都受到原著作权保护.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈