Sciweavers

ICIP
2008
IEEE
13 years 11 months ago
H.264/AVC video scrambling for privacy protection
In this paper, we address the problem of privacy in video surveillance systems. More specifically, we consider the case of H.264/AVC which is the state-of-the-art in video coding....
Frédéric Dufaux, Touradj Ebrahimi
ICPR
2002
IEEE
14 years 5 months ago
Multi-Scale Autoconvolution for Affine Invariant Pattern Recognition
This paper describes a novel image transform called Multi-Scale Autoconvolution which is invariant with respect to affine transformations of the spatial image coordinates. The tra...
Janne Heikkilä
ICIP
2000
IEEE
14 years 6 months ago
Registration of Digital Ophthalmic Images Using Vector Mapping
This paper outlines a technique for the automated alignment of digital images of the retina under the assumption that they differ spatially by a geometric global transform. This a...
Neil Ryan, Conor Heneghan, M. Cahill
ICIP
2001
IEEE
14 years 6 months ago
Hyperspectral image coding using 3D transforms
This work considers the efficient coding of hyperspectral images. The shape-adaptive DCT is extended to the three-dimensional case. Both the 3D-SA-DCT and the conventional 3D-DCT ...
Dmitry Markman, David Malah
ICIP
2002
IEEE
14 years 6 months ago
Overcomplete image coding using iterative projection-based noise shaping
Overcomplete transforms, like the Dual-Tree Complex Wavelet Transform, offer more flexible signal representations than criticallysampled transforms. Large numbers of transform coe...
Nick G. Kingsbury, Tanya Reeves
ICIP
2003
IEEE
14 years 6 months ago
Redundant representation with complex wavelets: how to achieve sparsity
Overcomplete transforms, like the Dual-Tree Complex Wavelet Transform, offer more flexible signal representations than critically-sampled transforms, due to their properties of sh...
Nick G. Kingsbury, Tanya Reeves