Innovative Decomposition for Progressive Image
Transmission

ASIA unversity > 亞洲學術期刊 > Asian Journal of Health and Information Sciences > v.1 n.2 > Item 310904400/2042

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题名:	Innovative Decomposition for Progressive Image Transmission
作者:	TIMOTHY K. SHIH;RONG-CHI CHANG
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 06:57:16 (UTC+0)
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 recovered.
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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