The effect of ambient illumination on handheld display image quality.
No Thumbnail Available
Date
2014-01-28
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Handheld devices such as smartphones and tablets are becoming useful in the medical field as they allow physicians radiologists and researchers to analyze images with the benefit of mobile accessibility However for handheld devices to be effective the display must be able to perform well in a wide range of ambient illumination conditions We conducted visual experiments to quantify user performance for testing the image quality of two current generation devices in different ambient illumination conditions while measuring ambient light levels with a real time illuminance meter We found and quantified that due to the high reflectivity of handheld devices performance deteriorates as the user moves from dark areas into environments of greater ambient illumination The quantitative analysis suggests that differences in display reflection coefficients do not affect the low illumination performance of the device but rather the performance at higher levels of illumination