Irreversible wavelet compression of radiological images based on visual threshold

2015 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE) Pub Date : 2015-12-01 DOI:10.1109/WIECON-ECE.2015.7443918

B. Chandrika, P. Aparna, S. David

引用次数: 5

Abstract

Visually lossless irreversible coding permit compression algorithms to improve the compression gain without disturbing the visual image quality. This paper proposes a novel coding scheme in which wavelet based visual model is embedded into lossless compression algorithm to compress the volumetric medical image data. Obtained experimental results are compared with numerically lossless compression schemes such as Differential Pulse Code Modulation (DPCM), Joint Photographic Experts Group-Lossless (JPEG-LS), JPEG-2000 and High Efficiency Video Coding (HEVC). The proposed method achieves reduced bit rate without deteriorating the visual quality of the resulting images.

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基于视觉阈值的放射图像不可逆小波压缩

视觉无损不可逆编码允许压缩算法在不影响视觉图像质量的情况下提高压缩增益。本文提出了一种新的编码方案，将基于小波的视觉模型嵌入到无损压缩算法中，对体积医学图像数据进行压缩。实验结果与差分脉冲编码调制(DPCM)、联合摄影专家组无损编码(JPEG-LS)、JPEG-2000和高效视频编码(HEVC)等数字无损压缩方案进行了比较。该方法在不降低图像视觉质量的前提下实现了降低的比特率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2015 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)

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