State of the art concerning Lossless Medical Image Coding
Koen N. Denecker, Steven Van Assche, Wilfried R. Philips, Ignace A. Lemahieu · 1997
The output of recently developed imaging devices is more often in a digital format and both storage space and transmission times of these images profit from data compression. However, for legal and functional reasons, loss of information should be avoided, introducing the need for lossless compression techniques. Recent evolutions in computing power have given rise to the birth of several new and more promising compression techniques. In this paper we present an experimental comparison of some recently developed lossless image coders and investigate their compression efficiency and their speed with respect to different types of medical images. The coders are: LJPEG, BTPC, FELICS, S+P, CALIC, LOCO-I, GZIP and STAT. Among the medical imaging techniques, we discern: CT, MRI, X-ray, angiography, mammography, PET and echography. We give combined compression ratio versus speed results for the different compression methods and show how the compressibility depends on the type of imagery. We sh...