19 search results - page 1 / 4 » Dense saliency-based spatiotemporal feature points for actio... |
CVPR
2009
IEEE
15 years 2 months ago
2009
IEEE
Several spatiotemporal feature point detectors have been recently used in video analysis for action recognition. Feature points are detected using a number of measures, namely sali...
ECCV
2008
Springer
14 years 8 months ago
2008
Springer
Over the years, several spatio-temporal interest point detectors have been proposed. While some detectors can only extract a sparse set of scaleinvariant features, others allow for...
ECCV
2008
Springer
14 years 8 months ago
2008
Springer
Abstract. The use of sparse invariant features to recognise classes of actions or objects has become common in the literature. However, features are often "engineered" to...
ICCV
2009
IEEE
13 years 4 months ago
2009
IEEE
Within the field of action recognition, features and descriptors are often engineered to be sparse and invariant to transformation. While sparsity makes the problem tractable, it ...
CVPR
2008
IEEE
14 years 9 months ago
2008
IEEE
In this paper we present a novel approach using a 4D (x,y,z,t) action feature model (4D-AFM) for recognizing actions from arbitrary views. The 4D-AFM elegantly encodes shape and m...