PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
De Simone F., Valenzise G., Paul L., Dufaux F., Banterle F. Dynamic range expansion of video sequences: a subjective quality assessment study. In: GlobalSIP 2014 - The 2nd IEEE Global Conference on Signal and Information Processing (Atlanta, Georgia, USA, 3-5 December 2014). Proceedings, pp. 1231 - 1235. IEEE, 2014.
 
 
Abstract
(English)
The goal of this paper is to assess whether existing solutions to expand low dynamic range (LDR) still images to high dynamic range (HDR) displays can apply to moving pictures. To this end, we conduct a subjective quality assessment test on four state-of-the-art expansion operators, using high-quality input LDR content. Our results show that, perhaps surprisingly, no temporal artifacts, such as flickering due to global illumination changes, are introduced applying frame-based algorithms. In addition, they confirm previous studies in that operators as simple as linear expansion can yield acceptable (or even excellent) quality of the HDR video.
Subject High dynamic range
Expansion operators
HDR display
Subjective quality assessment
I.3.3 Picture/Image Generation. Display Algorithms
I.4.0 IMAGE PROCESSING AND COMPUTER VISION. General. Image Displays


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