Persons K R, Palisson P M, Manduca A, Charboneau W J, James E M, Charboneau N T, Hangiandreou N J, Erickson B J
Mayo Foundation, Rochester, MN 55905, USA.
J Digit Imaging. 2000 Feb;13(1):25-32. doi: 10.1007/BF03168337.
The purpose of the study was to evaluate the effects of lossy compression on grayscale ultrasound images to determine how much compression can be applied while still maintaining images that are acceptable for diagnostic purposes. The study considered how the acquisition technique (video frame-grabber versus directly acquired in digital form) influences how much compression can be applied. For directly acquired digital images, the study considered how text (that is burned into the image) affects the compressibility of the image. The lossy compression techniques that were considered include JPEG and a Wavelet algorithm using set partitioning in hierarchical trees (SPIHT).
该研究的目的是评估有损压缩对灰度超声图像的影响，以确定在保持可用于诊断目的的图像的同时可以应用多少压缩。该研究考虑了采集技术（视频帧捕捉器与直接以数字形式采集）如何影响可应用的压缩量。对于直接采集的数字图像，该研究考虑了文本（即烧录到图像中的）如何影响图像的可压缩性。所考虑的有损压缩技术包括JPEG和一种使用分层树中的集合划分（SPIHT）的小波算法。
