<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Juha Kivijarvi</style></author><author><style face="normal" font="default" size="100%">Tamás Ojala</style></author><author><style face="normal" font="default" size="100%">Timo Kaukoranta</style></author><author><style face="normal" font="default" size="100%">Attila Kuba</style></author><author><style face="normal" font="default" size="100%">László Gábor Nyúl</style></author><author><style face="normal" font="default" size="100%">Olli Nevalainen</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A comparison of lossless compression methods for medical images</style></title><secondary-title><style face="normal" font="default" size="100%">COMPUTERIZED MEDICAL IMAGING AND GRAPHICS</style></secondary-title><short-title><style face="normal" font="default" size="100%">COMPUT MED IMAG GRAP</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1998</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1998///</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">22</style></volume><pages><style face="normal" font="default" size="100%">323 - 339</style></pages><isbn><style face="normal" font="default" size="100%">0895-6111</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this work, lossless grayscale image compression methods arecompared on a medical image database. The database contains 10 
different types of images with bit rates varying from 8 to 16 
bits per pixel. The total number of test images was about 3000, 
originating from 125 different patient studies. Methods used for 
compressing the images include seven methods designed for 
grayscale images and 18 ordinary general-purpose compression 
programs. Furthermore, four compressed image file formats were 
used. The results show that the compression ratios strongly 
depend on the type of the image. The best methods turned out to 
be TMW, CALIC and JPEG-LS. The analysis step in TMW is very 
time-consuming. CALIC gives high compression ratios in a 
reasonable time, whereas JPEG-LS is nearly as effective and very 
fast.
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><notes><style face="normal" font="default" size="100%">UT: 000076981400007ScopusID: 0344110480doi: 10.1016/S0895-6111(98)00042-1</style></notes></record></records></xml>