Lossless Compression of Medical Images Using 3D Predictors
Rodrigues, Nuno M. M.
Cruz, L. A. S. C.
IEEE Trans. on Medical Imaging Vol. PP, Nº 99, pp. 1 - 1, June, 2017.
ISSN (print): 0278-0062
ISSN (online): 0278-0062
Journal Impact Factor: 4,004 (in 2008)
Digital Object Identifier: 10.1109/TMI.2017.2714640
This paper describes a highly efficient method for lossless compression of volumetric sets of medical images, such as CTs or MRIs. The proposed method, referred to as 3D-MRP, is based on the principle of minimum rate predictors (MRP), which is one of the state-of-the-art lossless compression technologies, presented in the data compression literature. The main features of the proposed method include the use of 3D predictors, 3D-block octree partitioning and classification, volume-based optimisation and support for 16 bit-depth images. Experimental results demonstrate the efficiency of the 3D-MRP algorithm for the compression of volumetric sets of medical images, achieving gains above 15% and 12% for 8 bit and 16 bit-depth contents, respectively, when compared to JPEG-LS, JPEG2000, CALIC, HEVC, as well as other proposals based on MRP algorithm.