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Proceedings of CAD'14, 2014, 7-10
Computational Investigation of the Effect of Luminance Contrast on Depth Perception in Physical and Simulated Scenes

Nan-Ching Tai, National Taipei University of Technology

Abstract. The development of high dynamic range (HDR) imaging and its related technologies has advanced the visual realism of digital representation to physical accuracy. Both the existing and imaginary scenes can be recorded and simulated in an HDR format that encompasses the complete dynamic luminance range of the scene it represents using related technologies of HDR photography, and the lighting simulation program RADIANCE. Perceptual-based tone-mapping techniques were developed to compress the dynamic range of HDR images to enable viewing them on a common display device’s displayable range based on the light processing technique used by the visual system. As a result, the visual realism of digital representation generated by HDR-related technologies has advanced from physical accuracy to perceptual realism, and it provides a possible alternative environment to conduct a perceptual study that is restricted by the physical environment. Prior studies conducted psychophysical experiments using computer images generated by HDR-related technologies to investigate the effect of luminance distribution of a scene on depth perception.

Keywords. High dynamic range imaging, luminance contrast, image-based lighting, depth perception, CAD

DOI: 10.14733/cadconfP.2014.7-10