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Estimating human pose from occluded images

Published: 23 September 2009 Publication History

Abstract

We address the problem of recovering 3D human pose from single 2D images, in which the pose estimation problem is formulated as a direct nonlinear regression from image observation to 3D joint positions. One key issue that has not been addressed in the literature is how to estimate 3D pose when humans in the scenes are partially or heavily occluded. When occlusions occur, features extracted from image observations (e.g., silhouettes-based shape features, histogram of oriented gradient, etc.) are seriously corrupted, and consequently the regressor (trained on un-occluded images) is unable to estimate pose states correctly. In this paper, we present a method that is capable of handling occlusions using sparse signal representations, in which each test sample is represented as a compact linear combination of training samples. The sparsest solution can then be efficiently obtained by solving a convex optimization problem with certain norms (such as l1-norm). The corrupted test image can be recovered with a sparse linear combination of un-occluded training images which can then be used for estimating human pose correctly (as if no occlusions exist). We also show that the proposed approach implicitly performs relevant feature selection with un-occluded test images. Experimental results on synthetic and real data sets bear out our theory that with sparse representation 3D human pose can be robustly estimated when humans are partially or heavily occluded in the scenes.

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Cited By

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  • (2023)Autoencoder and Masked Image Encoding-Based Attentional Pose NetworkPattern Recognition and Computer Vision10.1007/978-981-99-8432-9_18(221-233)Online publication date: 13-Oct-2023
  • (2019)iMapperACM Transactions on Graphics10.1145/3306346.332296138:4(1-15)Online publication date: 12-Jul-2019
  • (2018)Sequential Articulated Motion Reconstruction from a Monocular Image SequenceACM Transactions on Multimedia Computing, Communications, and Applications10.1145/318042014:1s(1-21)Online publication date: 26-Mar-2018
  • Show More Cited By

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Information

Published In

cover image Guide Proceedings
ACCV'09: Proceedings of the 9th Asian conference on Computer Vision - Volume Part I
September 2009
383 pages
ISBN:3642123066
  • Editors:
  • Hongbin Zha,
  • Rin-ichiro Taniguchi,
  • Stephen Maybank

Sponsors

  • NSF of China: National Natural Science Foundation of China
  • Fujitsu
  • Microsoft Research: Microsoft Research
  • Key Laboratory of Machine Perception (MOE), Peking University: Key Laboratory of Machine Perception (MOE), Peking University
  • National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences: National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences

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Springer-Verlag

Berlin, Heidelberg

Publication History

Published: 23 September 2009

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Cited By

View all
  • (2023)Autoencoder and Masked Image Encoding-Based Attentional Pose NetworkPattern Recognition and Computer Vision10.1007/978-981-99-8432-9_18(221-233)Online publication date: 13-Oct-2023
  • (2019)iMapperACM Transactions on Graphics10.1145/3306346.332296138:4(1-15)Online publication date: 12-Jul-2019
  • (2018)Sequential Articulated Motion Reconstruction from a Monocular Image SequenceACM Transactions on Multimedia Computing, Communications, and Applications10.1145/318042014:1s(1-21)Online publication date: 26-Mar-2018
  • (2016)3D Human pose estimationComputer Vision and Image Understanding10.1016/j.cviu.2016.09.002152:C(1-20)Online publication date: 1-Nov-2016

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