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    题名: Innovative Decomposition for Progressive Image Transmission
    贡献者: Department of Computer Science and Information Engineering, Tamkang University
    关键词: progressive image transmission;bit plane method;pixel interpolation;image coding;network applications
    日期: 2006-07
    上传时间: 2009-10-13 14:57:16 (UTC+8)
    出版者: Asia University
    摘要: Progressive image transmission (PIT) transmits the most significant portion of a picture, followed
    by its less important portions. The mechanism can be used in Web-based applications while users are
    browsing images. However, most PIT methods use the same pixel interpolation scheme for the entire
    picture, without considering the differences among image blocks. This paper analyzes the efficiency of
    pixel interpolation schemes and tests several decomposition mechanisms. The contribution results in an
    adaptive image transmission scheme, which takes the differences of picture portions into consideration.
    This study tested 1500 pictures in different categories and parameters. In consequence, the overall bit
    rates can be reduced significantly with good PSNR values and user satisfaction. The visual result is
    superior to progressive JPEG on both objective (quantitative) and subjective (human) measures. An
    error recovery procedure is also implemented in case that the transmitted pictures need to be fully
    關聯: Asian Journal of Health and Information Sciences 1(2):204-227
    显示于类别:[Asian Journal of Health and Information Sciences] v.1 n.2


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