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Communication Dans Un Congrès Année : 2013

Local polynomial space-time descriptors for actions classification

Résumé

In this paper we propose to tackle human actions indexing by introducing a new local motion descriptor. Our proposed descriptor is based on two modeling, a spatial model and a temporal model. The spatial model is computed by projection of optical flow onto bivari- ate orthogonal polynomials. Then, the time evolution of spatial coefficients is modeled with a one dimension polynomial basis. To perform the action classification, we extend recent still image signatures using local de- scriptors to our proposal and combine them with linear SVM classifiers. The experiments are carried out on the well known KTH dataset and on the more challeng- ing Hollywood2 action classification dataset and show promising results.
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Dates et versions

hal-00807493 , version 1 (03-04-2013)

Identifiants

  • HAL Id : hal-00807493 , version 1

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Olivier Kihl, David Picard, Philippe-Henri Gosselin. Local polynomial space-time descriptors for actions classification. International Conference on Machine Vision Applications, May 2013, Kyoto, Japan. ⟨hal-00807493⟩
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