Title :
Effect of Veiling Glare on Detectability in High-Dynamic-Range Medical Images
Author :
Mina Choi ; Wang, Jiacheng ; Wei-Chung Cheng ; Ramponi, Giovanni ; Albani, Luigi ; Badano, Aldo
Author_Institution :
Center for Devices & Radiol. Health, U.S. Food & Drug Adm., Silver Spring, MD, USA
Abstract :
We describe a methodology for predicting the detectability of subtle targets in dark regions of high-dynamic-range (HDR) images in the presence of veiling glare in the human eye. The method relies on predictions of contrast detection thresholds for the human visual system within a HDR image based on psychophysics measurements and modeling of the HDR display device characteristics. We present experimental results used to construct the model and discuss an image-dependent empirical veiling glare model and the validation of the model predictions with test patterns, natural scenes, and medical images. The model predictions are compared to a previously reported model (HDR-VDP2) for predicting HDR image quality accounting for glare effects.
Keywords :
biomedical MRI; biomedical equipment; eye; medical image processing; HDR display device; HDR image; high-dynamic-range medical images; human eye; human visual system; image-dependent empirical veiling glare model; psychophysics measurements; psychophysics modeling; Biomedical imaging; Dynamic range; Mathematical model; Observers; Predictive models; Prototypes; Visualization;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2013.2279933