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Multiple Metric Learning for Graph Based Human Pose Estimation

  • Mohammadreza Zolfaghari
  • Morteza Ghareh Gozlou
  • Mohammad Taghi Manzuri Shalmani
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8228)

Abstract

In this paper, a multiple metric learning scheme for human pose estimation from a single image is proposed. Here, we focused on a big challenge of this problem which is; different 3D poses might correspond to similar inputs. To address this ambiguity, some Euclidean distance based approaches use prior knowledge or pose model that can work properly, provided that the model parameters are being estimated accurately. In the proposed method, the manifold of data is divided into several clusters and then, we learn a new metric for each partition by utilizing not only input features, but also their corresponding poses. The manifold clustering allows the decomposition of multiple manifolds into a set of manifolds that are less complex. Furthermore, the input data could be mapped to a new space where the ambiguity problem is minimized. Our guiding principle for learning the distance metrics is to preserve the manifold structure of the input data. The proposed method employs Tikhonov regularization technique to obtain a smooth estimation of the labels. Experiments on the data set of human pose estimation demonstrate that the proposed multiple metric learning consistently outperforms single-metric learning method across different activities by a wide margin.

Keywords

Multiple metric learning semi-supervised estimation human pose estimation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Mohammadreza Zolfaghari
    • 1
  • Morteza Ghareh Gozlou
    • 2
  • Mohammad Taghi Manzuri Shalmani
    • 1
  1. 1.Department of Computer EngineeringSharif University of TechnologyTehranIran
  2. 2.Faculty of Engineering and Physical SciencesUniversity of SurreyGuildfordUK

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