Recent Advances in Facial Appearance Capture

1Disney Research Zürich 2MPI Informatik 3ETH Zürich 4Pixar Animation Studios 5IST Austria

In Computer Graphics Forum (Proceedings of Eurographics - State of the Art Reports), 2015

Abstract

Facial appearance capture is now firmly established within academic research and used extensively across various application domains, perhaps most prominently in the entertainment industry through the design of virtual characters in video games and films. While significant progress has occurred over the last two decades, no single survey currently exists that discusses the similarities, differences, and practical considerations of the available appearance capture techniques as applied to human faces. A central difficulty of facial appearance capture is the way light interacts with skin—which has a complex multi-layered structure—and the interactions that occur below the skin surface can, by definition, only be observed indirectly. In this report, we distinguish between two broad strategies for dealing with this complexity. “Image-based methods” try to exhaustively capture the exact face appearance under different lighting and viewing conditions, and then render the face through weighted image combinations. “Parametric methods” instead fit the captured reflectance data to some parametric appearance model used during rendering, allowing for a more lightweight and flexible representation but at the cost of potentially increased rendering complexity or inexact reproduction. The goal of this report is to provide an overview that can guide practitioners and researchers in assessing the tradeoffs between current approaches and identifying directions for future advances in facial appearance capture.

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Text Reference

Oliver Klehm, Fabrice Rousselle, Marios Papas, Derek Bradley, Christophe Hery, Bernd Bickel, Wojciech Jarosz, Thabo Beeler. Recent Advances in Facial Appearance Capture. Computer Graphics Forum (Proceedings of Eurographics - State of the Art Reports), 34(2):709–733, May 2015.

BibTex Reference

@article{klehm15star,
    author = "Klehm, Oliver and Rousselle, Fabrice and Papas, Marios and Bradley, Derek and Hery, Christophe and Bickel, Bernd and Jarosz, Wojciech and Beeler, Thabo",
    title = "Recent Advances in Facial Appearance Capture",
    journal = "Computer Graphics Forum (Proceedings of Eurographics - State of the Art Reports)",
    volume = "34",
    number = "2",
    month = "may",
    year = "2015",
    DOI = "10.1111/cgf.12594",
    pages = "709–733",
    keywords = "faces, reflectance, scattering"
}

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© The Author(s). This is the author's version of the work. It is posted here by permission of The Eurographics Association for your personal use. Not for redistribution. The definitive version is available at diglib.eg.org.