Lossy compression performs well in abdominal CT images

1/16/2008
By Erik L. Ridley
Copyright © 2008 AuntMinnie.com

Excerpt:
"To estimate the visually lossless threshold for JPEG 2000 compression for abdominal CT images, the researchers studied 100 consecutive adult patients receiving contrast-enhanced abdominal CT scanning on a 16-detector-row CT scanner. The raw projection data were reconstructed into 5-mm transverse sections at 4-mm intervals," Kim said.

"One image was randomly selected per patient, forming a 100-image set. The original images were then compressed using a JPEG 2000 algorithm (Pegasus Imaging, Tampa, FL) at a reversible compression level, as well as at irreversible ratios of 5:1, 10:1, and 15:1."

Full Article:
Lossy compression performs well in abdominal CT images