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Title: | An assessment of simultaneous dynamic range for HDR rendering |
Authors: | Yusuke Izumisawa , Takahiko Horiuchi , Keita Hirai , Shoji Tominaga |
Keywords: | HDR scene tone mapping operator Naka-Rushton equation simultaneous dynamic range photoreceptor model |
Issue Date: | 2013 |
Publisher: | Rajamangala University of Technology Thanyaburi Faculty of Mass Communication Technology |
Abstract: | High dynamic range (HDR) image rendering has been an active research area in the last two decades. In real-world scenarios, there is a wide range of luminance (around 14 log units) between highlights and shadows. However, according to previous reports, the simultaneous dynamic range of human vision is 3.73 log cd/m2. This property suggests that it is unnecessary to compress the full dynamic range of luminance in a real-world scene for realistic rendering. In this study, we present a sequence of psychophysical experiments to determine an appropriate simultaneous dynamic range depending on the HDR scene using an HDR rendering algorithm. The experimental results are summarized as follows: (1) for an HDR scene within the range of human vision, a rendered image with a higher simultaneous dynamic range within this range is preferable, (2) for an HDR scene beyond the range of human vision, a rendered image with the same simultaneous dynamic range as that of human vision is preferable, and (3) a rendered image with a higher simultaneous dynamic range is preferably observed under ambient light rather than in a dark room. |
Description: | ACA2013Thanyaburi: Blooming Color for Life December 11-14, 2013 |
URI: | http://www.repository.rmutt.ac.th/dspace/handle/123456789/1238 |
Appears in Collections: | ประชุมวิชาการ (Proceedings - MCT) |
Files in This Item:
File | Description | Size | Format | |
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AN ASSESSMENT OF SIMULTANEOUS DYNAMIC....pdf | An assessment of simultaneous dynamic range for HDR rendering | 1.26 MB | Adobe PDF | View/Open |
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