Title :
Contrast-limited adaptive histogram equalization: speed and effectiveness
Author :
Pizer, Stephen M. ; Johnston, R. Eugene ; Ericksen, James P. ; Yankaskas, Bonnie C. ; Muller, Keith E.
Author_Institution :
North Carolina Univ., Chapel Hill, NC, USA
Abstract :
An experiment intended to evaluate the clinical application of contrast-limited adaptive histogram equalization (CLAHE) to chest computer tomography (CT) images is reported. A machine especially designed to compute CLAHE in a few seconds is discussed. It is shown that CLAHE can be computed in 4 s after 5-s loading time using the specially designed parallel engine made from a few thousand dollars worth of off-the-shelf components. The processing appears to be useful for a wide range of medical images, but the limitations of observer calibration make it impossible to demonstrate such usefulness by agreement experiments
Keywords :
computerised picture processing; computerised tomography; medical diagnostic computing; 4 s; 5 s; chest computer tomography; contrast-limited adaptive histogram equalization; medical images; observer calibration; off-the-shelf components; parallel engine; Adaptive equalizers; Biomedical imaging; Clinical diagnosis; Computed tomography; Design methodology; Displays; Histograms; Lesions; Lungs; Medical diagnostic imaging;
Conference_Titel :
Visualization in Biomedical Computing, 1990., Proceedings of the First Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-8186-2039-0
DOI :
10.1109/VBC.1990.109340
