“Unlighting the Parthenon” by Tchou, Debevec, Stumpfel, Einarsson and Fajardo
Conference:
Type(s):
Title:
- Unlighting the Parthenon
Session/Category Title: Art and Architecture
Presenter(s)/Author(s):
Abstract:
We present a method that extends techniques in [Yu and Malik 1998] and [Debevec 1998] to estimate the surface colors of a com- plex scene with diffuse surfaces lit by natural outdoor illumination. Given a model of the scene’s geometry, a set of photographs of the scene taken under natural illumination, and corresponding measurements of the illumination, we can calculate the spatially-varying diffuse surface reflectance. The process employs a simple iterative inverse global illumination technique to compute the surface colors for the scene which, when rendered under the recorded illumination, best reproduce the appearance in the photographs. The results can then be used to render the scene under novel illumination.
References:
Debevec, P., Tchou, C., Gardner, A., Hawkins, T., Poullis, C., Stumpfel, J., Jones, A., Yun, N., Einarsson, P., Lundgren, T., Martinez, P., and Fajardo, M. 2004. Estimating surface reflectance properties of a complex scene under captured natural illumination. Conditionally Accepted to ACM Transactions on Graphics, Oct 2004.
Debevec, P. 1998. Rendering synthetic objects into real scenes. In SIGGRAPH 98.
Yu, Y., and Malik, J. 1998. Recovering photometric properties of architectural scenes from photographs. In SIGGRAPH 98.
