547 search results - page 14 / 110 » Spatiotemporal feature extraction based on invariance repres... |
ICIP
2004
IEEE
14 years 9 months ago
2004
IEEE
In this paper we propose an image retrieval scheme based on projectively invariant features. Since cross-ratio is the fundamental invariant feature under projective transformation...
NIPS
2004
13 years 9 months ago
2004
Visual action recognition is an important problem in computer vision. In this paper, we propose a new method to probabilistically model and recognize actions of articulated object...
TNN
2008
13 years 7 months ago
2008
The matrix, as an extended pattern representation to the vector, has proven to be effective in feature extraction. But the subsequent classifier following the matrix-pattern-orien...
ICIP
2001
IEEE
14 years 9 months ago
2001
IEEE
In this paper, we develop a new approach for texture classification independent of affine transforms. Based on spectral representation of texture images under affine transform, an...
ICCV
2011
IEEE
12 years 7 months ago
2011
IEEE
Low-Rank Representation (LRR) [16, 17] is an effective method for exploring the multiple subspace structures of data. Usually, the observed data matrix itself is chosen as the dic...