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International Journal of Computer Vision

, Volume 126, Issue 2–4, pp 410–429 | Cite as

Joint Estimation of Human Pose and Conversational Groups from Social Scenes

  • Jagannadan Varadarajan
  • Ramanathan Subramanian
  • Samuel Rota Bulò
  • Narendra Ahuja
  • Oswald Lanz
  • Elisa Ricci
Article

Abstract

Despite many attempts in the last few years, automatic analysis of social scenes captured by wide-angle camera networks remains a very challenging task due to the low resolution of targets, background clutter and frequent and persistent occlusions. In this paper, we present a novel framework for jointly estimating (i) head, body orientations of targets and (ii) conversational groups called F-formations from social scenes. In contrast to prior works that have (a) exploited the limited range of head and body orientations to jointly learn both, or (b) employed the mutual head (but not body) pose of interactors for deducing F-formations, we propose a weakly-supervised learning algorithm for joint inference. Our algorithm employs body pose as the primary cue for F-formation estimation, and an alternating optimization strategy is proposed to iteratively refine F-formation and pose estimates. We demonstrate the increased efficacy of joint inference over the state-of-the-art via extensive experiments on three social datasets.

Keywords

Head and body pose estimation F-formation estimation Semi-supervised learning Convex optimization Conversational groups Video surveillance 

Supplementary material

11263_2017_1026_MOESM1_ESM.pdf (1.7 mb)
Supplementary material 1 (pdf 1710 KB)

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Advanced Digital Sciences CenterSingaporeSingapore
  2. 2.International Institute of Information TechnologyHyderabadIndia
  3. 3.University of GlasgowGlasgowUK
  4. 4.Mapillary ResearchGrazAustria
  5. 5.Fondazione Bruno KesslerTrentoItaly
  6. 6.University of Illinois Urbana ChampaignChampaignUSA
  7. 7.Department of EngineeringUniversity of PerugiaPerugiaItaly

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