Facial landmark localization using robust relationship priors and approximative gibbs sampling

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Abstract

We tackle the facial landmark localization problem as an inference problem over a Markov Random Field. Efficient inference is implemented using Gibbs sampling with approximated full conditional distributions in a latent variable model. This approximation allows us to improve the runtime performance 1000-fold over classical formulations with no perceptible loss in accuracy. The exceptional robustness of our method is realized by utilizing a L1-loss function and via our new robust shape model based on pairwise topological constraints. Compared with competing methods, our algorithm does not require any prior knowledge or initial guess about the location, scale or pose of the face.

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Vogt, K., Müller, O., & Ostermann, J. (2015). Facial landmark localization using robust relationship priors and approximative gibbs sampling. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9475, pp. 365–376). Springer Verlag. https://doi.org/10.1007/978-3-319-27863-6_34

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