Directional Space-Time Oriented Gradients for 3D Visual Pattern Analysis

  title={Directional Space-Time Oriented Gradients for 3D Visual Pattern Analysis},
  author={Ehsan Norouznezhad and Mehrtash Tafazzoli Harandi and Abbas Bigdeli and Mahsa Baktash and Adam Postula and Brian C. Lovell},
Various visual tasks such as the recognition of human actions, gestures, facial expressions, and classification of dynamic textures require modeling and the representation of spatio-temporal information. In this paper, we propose representing space-time patterns using directional spatio-temporal oriented gradients. In the proposed approach, a 3D video patch is represented by a histogram of oriented gradients over nine symmetric spatio-temporal planes. Video comparison is achieved through a… CONTINUE READING
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