Designing Perceptual Puzzles by Differentiating Probabilistic Programs

04/26/2022

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by   Kartik Chandra, et al.

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We design new visual illusions by finding "adversarial examples" for principled models of human perception – specifically, for probabilistic models, which treat vision as Bayesian inference. To perform this search efficiently, we design a differentiable probabilistic programming language, whose API exposes MCMC inference as a first-class differentiable function. We demonstrate our method by automatically creating illusions for three features of human vision: color constancy, size constancy, and face perception.