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一种基于人类视觉特性的医学图像压缩算法
An Algorithm of Medical Image Compression Based on Human Vision System
【摘要】 结合人类视觉系统的掩盖特性和图像的3种不同特性区域,提出了一个新的基于人类视觉特点的医学图像压缩算法.通过对计算机断层扫描(CT)、核磁共振成像(MR I)图像进行验证表明,在相同的压缩比下,该方法能够取得较好的主观视觉质量.在视觉无损即保留几乎所有医学相关信息的条件下,压缩率可以达到16∶1.
【Abstract】 Based on the study of the characteristics of humans’ vision system,this paper designed a new(algorithm) of medical image compression and combined the masking feature of human vision system and the three component model of the image.The experiments were done on the medical images including CT and MRI.The results show that under the same compression ratio,the method used in the paper can achieve better subjective visual quality.The compression ratio can reach 16∶1,if the visually lossless effect is(required,) i.e.,almost all the relevant medical information is reserved.
【Key words】 medical image; image compression; wavelet transform; human vision system(HVS);
- 【文献出处】 上海交通大学学报 ,Journal of Shanghai Jiaotong University , 编辑部邮箱 ,2005年12期
- 【分类号】TP391.41
- 【被引频次】2
- 【下载频次】222