Uncovering Interactions and Interactors: Joint Estimation of Head, Body Orientation and F-Formations From Surveillance Videos

author: Jagannadan Varadarajan, Advanced Digital Sciences Center, University of Illinois at Urbana-Champaign
published: Feb. 10, 2016,   recorded: December 2015,   views: 1580

Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.


We present a novel approach for jointly estimating targets’ head, body orientations and conversational groups called F-formations from a distant social scene (e.g., a cocktail party captured by surveillance cameras). Differing from related works that have (i) coupled head and body pose learning by exploiting the limited range of orientations that the two can jointly take, or (ii) determined F-formations based on the mutual head (but not body) orientations of interactors, we present a unified framework to jointly infer both (i) and (ii). Apart from exploiting spatial and orientation relationships, we also integrate cues pertaining to temporal consistency and occlusions, which are beneficial while handling low-resolution data under surveillance settings. Efficacy of the joint inference framework reflects via increased head, body pose and F-formation estimation accuracy over the state-of-the-art, as confirmed by extensive experiments on two social datasets.

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: