A Multilevel Mixture-of-Experts Framework for Pedestrian Classification

Authors:
Markus Enzweiler;Dariu M. Gavrila
Affiliations:
Environment Perception department, Daimler AG Group Research & MCG Development, Ulm, Germany;Environment Perception department, Daimler AG Group Research & MCG Development, Ulm, Germany
Venue:
IEEE Transactions on Image Processing
Year:
2011

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Abstract

Notwithstanding many years of progress, pedestrian recognition is still a difficult but important problem. We present a novel multilevel Mixture-of-Experts approach to combine information from multiple features and cues with the objective of improved pedestrian classification. On pose-level, shape cues based on Chamfer shape matching provide sample-dependent priors for a certain pedestrian view. On modality-level, we represent each data sample in terms of image intensity, (dense) depth, and (dense) flow. On feature-level, we consider histograms of oriented gradients (HOG) and local binary patterns (LBP). Multilayer perceptrons (MLP) and linear support vector machines (linSVM) are used as expert classifiers.