information Review The Current Role of Image Compression Standards in Medical Imaging Feng Liu 1 ID , Miguel Hernandez-Cabronero 2, Victor Sanchez 3, Michael W. Marcellin 2 and Ali Bilgin 2,4,5,* 1 College of Electronic Information and Optical Engineering, Nankai University, Haihe Education Park, 38 Tongyan Road, Jinnan District, Tianjin 300350, China;
[email protected] 2 Department of Electrical and Computer Engineering, The University of Arizona, 1230 E. Speedway Blvd, Tucson, AZ 85721, USA;
[email protected] (M.H.-C.);
[email protected] (M.W.M.) 3 Department of Computer Science, University of Warwick, Coventry CV4 7AL, UK;
[email protected] 4 Department of Biomedical Engineering, The University of Arizona, 1127 E. James E. Rogers Way, Tucson, AZ 85721, USA 5 Department of Medical Imaging, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA * Correspondence:
[email protected]; Tel.: +1-520-626-9414 Received: 25 September 2017; Accepted: 15 October 2017; Published: 19 October 2017 Abstract: With the increasing utilization of medical imaging in clinical practice and the growing dimensions of data volumes generated by various medical imaging modalities, the distribution, storage, and management of digital medical image data sets requires data compression. Over the past few decades, several image compression standards have been proposed by international standardization organizations. This paper discusses the current status of these image compression standards in medical imaging applications together with some of the legal and regulatory issues surrounding the use of compression in medical settings. Keywords: image compression; medical imaging; standards; JPEG; JPEG-LS; JPEG2000; JPEG-XR; HEVC; DICOM 1.