Computational Models of Face Perception

Current Directions in Psychological Science
Aleix M Martinez

Abstract

Faces are one of the most important means of communication in humans. For example, a short glance at a person's face provides information on identity and emotional state. What are the computations the brain uses to solve these problems so accurately and seemingly effortlessly? This article summarizes current research on computational modeling, a technique used to answer this question. Specifically, my research studies the hypothesis that this algorithm is tasked to solve the inverse problem of production. For example, to recognize identity, our brain needs to identify shape and shading image features that are invariant to facial expression, pose and illumination. Similarly, to recognize emotion, the brain needs to identify shape and shading features that are invariant to identity, pose and illumination. If one defines the physics equations that render an image under different identities, expressions, poses and illuminations, then gaining invariance to these factors is readily resolved by computing the inverse of this rendering function. I describe our current understanding of the algorithms used by our brains to resolve this inverse problem. I also discuss how these results are driving research in computer vision to design comp...Continue Reading

References

Mar 11, 2009·Journal of Vision·Donald Neth, Aleix M Martinez
Mar 12, 2009·Proceedings of the National Academy of Sciences of the United States of America·Sharon GiladPawan Sinha
Jul 3, 2010·The American Journal of Psychiatry·Thomas InselPhilip Wang
May 15, 2012·Neuron·Shay OhayonDoris Y Tsao
Jan 7, 2014·Current Biology : CB·Rachael E JackPhilippe G Schyns
Apr 2, 2014·The American Journal of Psychiatry·Thomas R Insel
Apr 8, 2014·Proceedings of the National Academy of Sciences of the United States of America·Shichuan DuAleix M Martinez
Oct 8, 2014·IEEE Transactions on Neural Networks and Learning Systems·Di YouAleix M Martinez
Feb 2, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Anne-Raphaëlle RichozRoberto Caldara
Feb 26, 2015·Proceedings of the National Academy of Sciences of the United States of America·Yonathan AflaloRon Kimmel
Apr 9, 2015·PLoS Computational Biology·Tor D WagerLisa Feldman Barrett
May 8, 2015·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Ethan M MeyersDoris Tsao
Jul 28, 2015·Current Biology : CB·Amy E Skerry, Rebecca Saxe
Sep 29, 2015·IEEE Transactions on Pattern Analysis and Machine Intelligence·Ruiqi Zhao, Aleix M Martinez
Feb 13, 2016·Cognition·C Fabian Benitez-QuirozAleix M Martinez
Apr 22, 2016·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Ramprakash SrinivasanAleix M Martinez
Jul 19, 2016·Vision Research·Mladen SormazTimothy J Andrews

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Citations

Jul 18, 2019·Psychological Science in the Public Interest : a Journal of the American Psychological Society·Lisa Feldman BarrettSeth D Pollak
Jul 25, 2019·Proceedings of the National Academy of Sciences of the United States of America·Jeffrey A BrooksJonathan B Freeman

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