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基于差分变换的无损医学图像压缩

Lossless Medical Image Compression by Using Difference Transform.

作者信息

Rojas-Hernández Rafael, Díaz-de-León-Santiago Juan Luis, Barceló-Alonso Grettel, Bautista-López Jorge, Trujillo-Mora Valentin, Salgado-Ramírez Julio César

机构信息

Ingeniería en Computación, Universidad Autónoma del Estado de México, Zumpango 55600, Mexico.

Centro de Investigación en Computación, Instituto Politécnico Nacional (CIC-IPN), Mexico City 07700, Mexico.

出版信息

Entropy (Basel). 2022 Jul 8;24(7):951. doi: 10.3390/e24070951.

DOI:10.3390/e24070951
PMID:35885174
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9323066/
Abstract

This paper introduces a new method of compressing digital images by using the Difference Transform applied in medical imaging. The Difference Transform algorithm performs the decorrelation process of image data, and in this way improves the encoding process, achieving a file with a smaller size than the original. The proposed method proves to be competitive and in many cases better than the standards used for medical images such as TIFF or PNG. In addition, the Difference Transform can replace other transforms like Cosine or Wavelet.

摘要

本文介绍了一种通过应用于医学成像的差分变换来压缩数字图像的新方法。差分变换算法执行图像数据的去相关过程，从而改进编码过程，得到一个比原始文件尺寸更小的文件。所提出的方法被证明具有竞争力，并且在许多情况下比用于医学图像的标准（如TIFF或PNG）更好。此外，差分变换可以替代诸如余弦变换或小波变换等其他变换。

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