Lighting-by-Example with Wavelets

  • Authors:
  • Hai Nam Ha;Patrick Olivier

  • Affiliations:
  • Culture Lab, School of Computing Science, Newcastle Univeristy, Newcastle Upon Tyne, NE1 7RU, UK;Culture Lab, School of Computing Science, Newcastle Univeristy, Newcastle Upon Tyne, NE1 7RU, UK

  • Venue:
  • SG '07 Proceedings of the 8th international symposium on Smart Graphics
  • Year:
  • 2007

Quantified Score

Hi-index 0.02

Visualization

Abstract

Automatic lighting design aims to provide users with semi-automated approaches, and easy-to-use tools, to configure lighting for 3D scenes. We present LightOpexthe first fully automatic example-based local illumination lighting design system. Utilizing a wavelet-based lighting design framework, by which image quality is modeled using a cognitively inspired objective function, this approach to lighting design both: (1) allows the declarative specification of lighting; and (2) facilitates intuitive and natural specification of scene lighting. LightOpexenables users to select the desired lighting for a scene using exemplar 2D images and uses the spatial distribution of the luminance in these images as the target values of an optimization step. We demonstrate the utility of LightOpexthrough a range of examples, and conduct a preliminary investigation of the performance of a number of different of optimization schemes.