A perceptual heuristic for shadow computation in photo-realistic images
Peter Vangorp | Olivier Dumont | Toon Lenaerts | Philip Dutré |
Contact: Peter Vangorp
ACM SIGGRAPH 2006 Sketch, p. 102
Boston, MA, USA, 30 July - 3 August 2006
Abstract
Perceptual research in photo-realistic rendering has mainly focused on the limitations of the human visual system to predict visible differences between the pixels of a radiometrically correct image and an approximation of the same image. However, research in perceptual psychology and vision suggests that image interpretation is inherently a higher-level, feature-based process. Furthermore, applications rarely demand a direct comparison to a radiometrically correct image, so approximations can be less strict. We propose a novel approach to perception that is geared towards these conditions for observing images.
Keywords: shadows, psychological perception, perceptual rendering