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ICASSP
2009
IEEE
13 years 10 months ago
View-invariant tensor null-space representation for multiple motion trajectory retrieval and classification
In this paper, we propose a novel general framework for tensor based null space affine invariants, namely, tensor null space invariants (TNSI) with a linear classifier for high ...
Xu Chen, Dan Schonfeld, Ashfaq Khokhar
ICASSP
2008
IEEE
13 years 10 months ago
Null-Space representation for view-invariant motion trajectory classification-recognition and indexing-retrieval
This paper presents a novel classification/ retrieval system for motion events based on a perfect view invariant representation of motion trajectories and a linear classifier al...
Eser Ustunel, Xu Chen, Dan Schonfeld, Ashfaq A. Kh...
ICIP
2009
IEEE
14 years 4 months ago
Localized Null Space Representation For Dynamic Updating And Downdating In Image And Video Databases
Event/object classification and recognition is an extremely challenging problem, particularly when the query or stored data undergo an affine transformation due to camera motion. ...
CVPR
2008
IEEE
14 years 5 months ago
Robust null space representation and sampling for view-invariant motion trajectory analysis
In this paper, we propose a novel robust retrieval and classification system for video and motion events based on null space representation. In order to analyze the robustness of ...
Xu Chen, Dan Schonfeld, Ashfaq A. Khokhar
ICMCS
2006
IEEE
104views Multimedia» more  ICMCS 2006»
13 years 9 months ago
Tensor-Based Multiple Object Trajectory Indexing and Retrieval
This paper presents novel tensor-based object trajectory modelling techniques for simultaneous representation of multiple objects motion trajectories in a content based indexing a...
Xiang Ma, Faisal I. Bashir, Ashfaq A. Khokhar, Dan...