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ji yu jpeg2000 de roi bian ma suan fa de yan jiu
Author(s): 
Pages: 3-5,24
Year: Issue:  11
Journal: SECURITY AND SAFETY TECHNOLOGY

Keyword:  感兴趣区域最大位移法部分背景系数位移平面法部分重要位平面位移法;
Abstract: JPEG2000是新一代的静态图象压缩标准,其中ROI即"感兴趣区域"是JPEG2000中增加的新特性.本文介绍了JPEG2000标准中定义的ROI算法:一般位移法和最大位移法,但这两种方法都有缺点,因此随后又详细论述了其改进算法--部分背景系数平面位移法和部分重要位平面位移法,并给出了算法验证和比较结果.
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