Paper Info
Title
Visibility Enhancement Via Optimal Gamma Tone Mapping For Ost Displays Under Ambient Light
Abstract
Visibility of the overlaid virtual image is sensitively affected by surrounding illumination in OST (optical see-through) displays. Ambient light may especially deteriorate the visibility of low gray levels, whose luminance is comparable to ambient light. Therefore, we first derive a luminance model based on actual measurements under various ambient lights, and use this model to extract low gray-level region (LGR), which suffers severely from contrast loss. It was experimentally found that gamma tone mapping is the most appropriate for LGR contrast enhancement of OST displays. The gamma value is optimally determined by cost minimization. Visibility enhancement is verified by experiments on a practical setup with a variety of ambient light levels and images.
Year
Venue
Keywords
2017
2017 24TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP)
ambient light, OST display, visibility enhancement, low gray-level region, gamma tone mapping
Field
DocType
ISSN
Virtual image,Computer vision,Visibility,Dynamic range,Computer science,Resist,Tone mapping,Liquid-crystal display,Artificial intelligence,Luminance,Brightness
Conference
1522-4880
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Kyu-Ho Lee101.01
Jae Woo Kim2289.47
Jong-Ok Kim302.03