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Conference Paper

Recovering Intrinsic Images with a Global Sparsity Prior on Reflectance

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons44483

Gehler,  Peter
Computer Vision and Multimodal Computing, MPI for Informatics, Max Planck Society;

Rother,  Carsten
Computer Vision and Multimodal Computing, MPI for Informatics, Max Planck Society;

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Citation

Gehler, P., Rother, C., Kiefel, M., Zhang, L., & Schölkopf, B. (2011). Recovering Intrinsic Images with a Global Sparsity Prior on Reflectance. In J. Shawe-Taylor, R. S. Zemel, P. Bartlett, F. Pereira, & K. Q. Weinberger (Eds.), Advances in Neural Information Processing Systems 24 (pp. 765-773). La Jolla, CA: NIPS Foundation.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-12F0-9
Abstract
We address the challenging task of decoupling material properties from lighting properties given a single image. In the last two decades virtually all works have concentrated on exploiting edge information to address this problem. We take a different route by introducing a new prior on reflectance, that models reflectance values as being drawn from a sparse set of basis colors. This results in a Random Field model with global, latent variables (basis colors) and pixel-accurate output reflectance values. We show that without edge information high-quality results can be achieved, that are on par with methods exploiting this source of information. Finally, we are able to improve on state-of-the-art results by integrating edge information into our model. We believe that our new approach is an excellent starting point for future developments in this field.