334 search results - page 15 / 67 » On Shift-Invariant Sparse Coding |
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
This paper presents a sparse representation of 2D planar shape through the composition of warping functions, termed formlets, localized in scale and space. Each formlet subjects t...
CVPR
2011
IEEE
13 years 3 months ago
2011
IEEE
Real-time unusual event detection in video stream has been a difficult challenge due to the lack of sufficient training information, volatility of the definitions for both norm...
ICCV
2005
IEEE
14 years 9 months ago
2005
IEEE
Example-based learning of codes that statistically encode general image classes is of vital importance for computational vision. Recently, non-negative matrix factorization (NMF) ...
ICIP
2008
IEEE
14 years 9 months ago
2008
IEEE
In this paper, we address the problem of hallucinating a high resolution face given a low resolution input face. The problem is approached through sparse coding. To exploit the fa...
IDA
2009
Springer
14 years 2 months ago
2009
Springer
In this paper, an algorithm for image coding based on a sparse 3-dimensional Discrete Cosine Transform (3D DCT) is studied. The algorithm is essentially a method for achieving a su...