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基于DCT医学图像压缩方法的研究与改进 被引量:1

Research and Improvement of Medical Image Compression Methods Based on DCT
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摘要 经DCT变换压缩的医学图像复原后,不可避免地会出现方块效应。本文对方块效应产生的原因进行了分析,并对基于DCT医学图像压缩的方法进行了改进,提出自适应DCT变换系数修正方法,消除重建图像中的方块效应。改进后的方法可以较为理想地消除解压图像中因分块而产生的方块效应。 The medical images have unavoidable block boundary after DCT compression. This paper analyses the reasons of block boundary and improves the methods of medical image compression based on DCT. The improved method can eliminate block boundary.
作者 孟燔
出处 《中国医疗设备》 2009年第11期23-25,45,共4页 China Medical Devices
关键词 医学图像 图像压缩 DCT 方块效应 medical image image compression DCT blocking effect
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