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A Markov Point Process model for wrinkles in human faces

Abstract : In this paper we present a new generative model for wrinkles on aging human faces based on Markov Point Processes (MPP) where wrinkles are considered as stochastic spatial arrangements of sequences of line segments. The model is then used in a Bayesian framework to localize the wrinkles in images. In aging human faces, wrinkles mostly appear as discontinuities in surrounding grayscale texture. The intensity gradients due to wrinkles are enhanced using filters and used as data to detect more probable locations and directions of line segments. Wrinkles are localized by sampling MPP using the Reversible Jump Markov Chain Monte Carlo (RJMCMC) algorithm. Experiments on images obtained from uncontrolled acquisition conditions are presented.
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Nazre Batool, Rama Chellappa. A Markov Point Process model for wrinkles in human faces. 2012 19th IEEE International Conference on Image Processing (ICIP), Sep 2012, Orlando, United States. pp.1809 - 1812, ⟨10.1109/ICIP.2012.6467233⟩. ⟨hal-01096679⟩



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