Database Research Group (CIS)

Cascaded Models for Articulated Pose Estimation

Ben Taskar, University of Pennsylvania
Benjamin Sapp, University of Pennsylvania

Document Type Conference Paper

Abstract

We address the problem of articulated human pose estimation by learning a coarse-to-ne cascade of pictorial structure models. While the ne-level state-space of poses of individual parts is too large to permit the use of rich appearance models, most possibilities can be ruled out by efficient structured models at a coarser scale. We propose to learn a sequence of structured models at different pose resolutions, where coarse models filter the pose space for the next level via their max-marginals. The cascade is trained to prune as much as possible while preserving true poses for the final level pictorial structure model. The final level uses much more expensive segmentation, contour and shape features in the model for the remaining filtered set of candidates. We evaluate our framework on the challenging Buy and PASCAL human pose datasets, improving the state-of-the-art.

 

Date Posted: 03 July 2012