Skip to Main content Skip to Navigation
New interface
Conference papers

Action Recognition using Exemplar-based Embedding

Daniel Weinland 1 Edmond Boyer 1 
1 PERCEPTION - Interpretation and Modelling of Images and Videos
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : In this paper, we address the problem of representing human actions using visual cues for the purpose of learning and recognition. Traditional approaches model actions as space-time representations which explicitly or implicitly encode the dynamics of an action through temporal dependencies. In contrast, we propose a new compact and efficient representation which does not account for such dependencies. Instead, motion sequences are represented with respect to a set of discriminative static key-pose exemplars and without modeling any temporal ordering. The interest is a time-invariant representation that drastically simplifies learning and recognition by removing time related information such as speed or length of an action. The proposed representation is equivalent to embedding actions into a space defined by distances to key-pose exemplars. We show how to build such embedding spaces of low dimension by identifying a vocabulary of highly discriminative exemplars using a forward selection. To test our representation, we have used a publicly available dataset which demonstrates that our method can precisely recognize actions, even with cluttered and non-segmented sequences.
Document type :
Conference papers
Complete list of metadata

Cited literature [25 references]  Display  Hide  Download
Contributor : Perception team Connect in order to contact the contributor
Submitted on : Tuesday, May 3, 2011 - 9:50:23 AM
Last modification on : Thursday, May 5, 2022 - 3:11:27 AM
Long-term archiving on: : Thursday, August 4, 2011 - 3:09:01 AM


Files produced by the author(s)




Daniel Weinland, Edmond Boyer. Action Recognition using Exemplar-based Embedding. CVPR 2008 - IEEE Conference on Computer Vision and Pattern Recognition, Jun 2008, Anchorage, United States. pp.1-7, ⟨10.1109/CVPR.2008.4587731⟩. ⟨inria-00590256⟩



Record views


Files downloads