Lightweight Face Relighting

  • Authors:
  • Sylvain Paris;François X. Sillion;Long Quan

  • Affiliations:
  • -;-;-

  • Venue:
  • PG '03 Proceedings of the 11th Pacific Conference on Computer Graphics and Applications
  • Year:
  • 2003

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Abstract

In this paper we present a method to relight human faces in realtime, using consumer-grade graphics cards even with limited 3Dcapabilities. We show how to render faces using a combination of asimple, hardware-accelerated parametric model simulating skinshading and a detail texture map, and provide robust procedures toestimate all the necessary parameters for a given face. Our modelstrikes a balance between the difficulty of realistic facerendering (given the very specific reflectance properties of skin)and the goal of real-time rendering with limited hardwarecapabilities. This is accomplished by automatically generating anoptimal set of parameters for a simple rendering model. We offer adiscussion of the issues in face rendering to discern the pros andcons of various rendering models and to generalize our approach tomost of the current hardware constraints. We provide resultsdemonstrating the usability of our approach and the improvements weintroduce both in the performance and in the visual quality of theresulting faces.