CAREER: Error Correction and Concealment for Wireless Video: An Integrated and Adaptive Approach

职业:无线视频的纠错和隐藏:一种集成的自适应方法

基本信息

  • 批准号:
    0133221
  • 负责人:
  • 金额:
    $ 34.78万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2002
  • 资助国家:
    美国
  • 起止时间:
    2002-08-15 至 2007-07-31
  • 项目状态:
    已结题

项目摘要

0133221Altunbasak, YucelGA Tech Res CorpAs wireless networks become more pervasive, there is a great need for wireless multimedia with quality and reliability levels that are characteristic of wired networks. It is clear that wireless communications will include image, video and data applications. Furthermore, spectral limitations dictate that transmissionresources be used efficiently. To this end, image, video and other mixed media encoding algorithms need to be designed to overcome the types of channel errors that are likely to occur. Noting the wireless channel characteristics and the requirements of real-time video applications, the investigator offers solutionsthat are novel in two aspects. First, the investigated methods are adaptive with respect to variations in bandwidth and channel error statistics. This flexibility should prove to be critical in heterogeneous wireless environments. Second, the error correction and concealment methods are not only technology advances bythemselves, but they also function together in innovative ways.More specifically, the contributions of this research include: (1) a coordinated multiple description coding and error concealment procedure where the smoothness of the video signal helps to compensate for the loss of descriptions, (2) a multiple description coder that adapts to variations in data rate and packet loss statistics, (3) a new multi-frame boundary matching algorithm that utilizes the boundary smoothness property not onlyin the decoded frame but also in the successive frames, thereby minimizing the error propagation, (4) a new multi-frame blocking artifact reduction algorithm that uses the spatial correlations that exist between the successive frames to define constraint sets at multiple frames and provides a projections onto convexsets based solution, (5) a transport protocol that is specifically designed for real-time multimedia communications, and (6) a testbed to integrate all the aforementioned methods into a system-level wireless video streaming solution. On the educational front, the investigator plans to develop a comprehensive program in multimedia signal processing and communications. The investigator will make every attempt to meetthe original scope and level of effort of the project.
0133221 Altunbasak,YucelGA Tech Res Corp.随着无线网络变得越来越普遍,对具有有线网络特征的质量和可靠性水平的无线多媒体的需求越来越大。显然,无线通信将包括图像、视频和数据应用。 此外,频谱限制要求传输资源得到有效利用。为此,需要设计图像、视频和其他混合媒体编码算法,以克服可能发生的信道错误类型。注意到无线信道的特点和实时视频应用的要求,研究者提供了解决方案,是新颖的两个方面。首先,调查的方法是自适应的带宽和信道误差统计的变化。这种灵活性在异构无线环境中至关重要。第二,纠错和隐藏方法不仅是技术本身的进步,而且它们还以创新的方式共同发挥作用。更具体地说,本研究的贡献包括:(1)协调的多描述编码和错误隐藏过程,其中视频信号的平滑度有助于补偿描述的丢失,(2)适应数据速率和分组丢失统计的变化的多描述编码器,(3)新的多帧边界匹配算法,其不仅在解码帧中而且在连续帧中利用边界平滑特性,从而最小化错误传播,(4)一种新的多帧块效应减少算法,其使用存在于连续帧之间的空间相关性来定义多帧处的约束集,并提供基于凸集的投影的解决方案,(5)一种专门为实时多媒体通信设计的传输协议,以及(6)将所有上述方法集成到系统级无线视频流解决方案中的测试平台。在教育方面,研究人员计划开发一个多媒体信号处理和通信的综合方案。研究者将尽一切努力满足项目的原始范围和工作水平。

项目成果

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Yucel Altunbasak其他文献

Yucel Altunbasak的其他文献

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{{ truncateString('Yucel Altunbasak', 18)}}的其他基金

Understanding the Book of Life: Non-Local Interaction Modeling for Protein Beta-Sheets and Its Integration to Protein Structure Prediction
理解生命之书:蛋白质β-折叠层的非局部相互作用建模及其与蛋白质结构预测的集成
  • 批准号:
    0728808
  • 财政年份:
    2008
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Standard Grant
Understanding the Book of Life: Bayesian Protein Secondary Structure Analysis and its Application to Protein Function Prediction
了解生命之书:贝叶斯蛋白质二级结构分析及其在蛋白质功能预测中的应用
  • 批准号:
    0514903
  • 财政年份:
    2005
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Standard Grant
U.S.-Turkey Collaborative Research: Cross-Layer Approaches for Interactive Media Streaming
美国-土耳其合作研究:交互式媒体流的跨层方法
  • 批准号:
    0352824
  • 财政年份:
    2004
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Standard Grant
Enhancing the Multimedia Experience in Emerging Networks: Rate-Distortion Optimization in Multimedia Networking
增强新兴网络中的多媒体体验:多媒体网络中的速率失真优化
  • 批准号:
    0430907
  • 财政年份:
    2004
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Continuing Grant
Multiple Description Coding with Correlating Transforms for Multiple Antenna Wireless Systems
多天线无线系统的具有相关变换的多重描述编码
  • 批准号:
    0105654
  • 财政年份:
    2001
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Standard Grant
SPS: Multiple Description Coding with Correlating Transforms for Multiple Antenna Wireless Systems
SPS:多天线无线系统的具有相关变换的多重描述编码
  • 批准号:
    0131855
  • 财政年份:
    2001
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Continuing Grant
ITR/SI(SPS)+AP+SY: High Resolution Video and Still Reconstruction with Applications to Visual Communications and Image Enhancement
ITR/SI(SPS) AP SY:高分辨率视频和静态重建及其在视觉通信和图像增强中的应用
  • 批准号:
    0113681
  • 财政年份:
    2001
  • 资助金额:
    $ 34.78万
  • 项目类别:
    Standard Grant

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