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Lossless Compression of Digital Mammograms

机译:数字乳房X线照片的无损压缩

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摘要

The file size of images generated using digital mammography systems varies between 8 MB and 50 MB. The amount of data to be stored in digital screening programs is huge. Image compression may be helpful. In this study 8491 digital and digitised mammography images are compressed using 14 lossless compression schemes. The results show that using lossless image compression, the total amount of data to be stored can be reduced by a factor of 1.3 to 6.9 without loss of image quality. The actual data reduction depends strongly on the selected compression algorithm and the systems used to acquire and process the mammograms. The JPEG-LS and JPEG 2000 algorithms, both included in the DICOM standard, prove to be promising algorithms for screening programs because of the high compression ratios.
机译:使用数字乳腺摄影系统生成的图像的文件大小在8 MB到50 MB之间变化。数字筛选程序中要存储的数据量很大。图像压缩可能会有所帮助。在这项研究中,使用14种无损压缩方案压缩了8491个数字化和数字化的乳腺摄影图像。结果表明,使用无损图像压缩,可以将要存储的数据总量减少1.3到6.9倍,而不会降低图像质量。实际的数据减少在很大程度上取决于所选的压缩算法以及用于采集和处理乳房X线照片的系统。都包含在DICOM标准中的JPEG-LS和JPEG 2000算法由于具有高压缩率而被证明是筛选程序的有前途的算法。

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