Inspec keywords: image sequences; spatiotemporal phenomena; image classification; support vector machines; image motion analysis; image representation

Other keywords: support vector machine; ViSOR dataset; human activity online classification; orientation histogram temporal history; RoI; multiscale dense optical flow; spatio-temporal multiscale motion descriptor; average per-frame accuracy; spatially-constrained decomposition; small overlapped subregion spatial representation; regions of interest; flow orientation histogram; human activity recognition; online action recognition; short sequence global classification

Subjects: Computer vision and image processing techniques; Knowledge engineering techniques; Image recognition