Book ChapterDOI
Modeling sense disambiguation of human pose: recognizing action at a distance by key poses
Snehasis Mukherjee,Sujoy Kumar Biswas,Dipti Prasad Mukherjee +2 more
- pp 244-255
TLDR
A methodology for recognizing actions at a distance by watching the human poses and deriving descriptors that capture the motion patterns of the poses and shows the efficacy of this approach when compared to the present state of the art.Abstract:
We propose a methodology for recognizing actions at a distance by watching the human poses and deriving descriptors that capture the motion patterns of the poses. Human poses often carry a strong visual sense (intended meaning) which describes the related action unambiguously. But identifying the intended meaning of poses is a challenging task because of their variability and such variations in poses lead to visual sense ambiguity. From a large vocabulary of poses (visual words) we prune out ambiguous poses and extract key poses (or key words) using centrality measure of graph connectivity [1]. Under this framework, finding the key poses for a given sense (i.e., action type) amounts to constructing a graph with poses as vertices and then identifying the most "important" vertices in the graph (following centrality theory). The results on four standard activity recognition datasets show the efficacy of our approach when compared to the present state of the art.read more
Citations
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Proceedings ArticleDOI
Putting poses on manifold for action recognition
TL;DR: A novel approach to select key poses for the codebook is proposed, which models the descriptor space utilizing manifold learning to recover the geometric structure of the descriptors on a lower dimensional manifold space.
References
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