期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2009
卷号：9
期号：1
页码：135-138
出版社：International Journal of Computer Science and Network Security
摘要：We propose a new transcoding method to control the picture quality dependently on the view focus. In the proposed method, the quantization step-size obtained by the homogeneous or heterogeneous approach is reassigned to improve the subjective picture quality. The smaller value of quantization step-size is assigned to more important position from view point but the larger value of quantization step-size is assigned to less important position. From the simulation, we show that the proposed method can make better subjective picture quality relatively in parts of center of displayed picture, more important position of view point.
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