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ICIP
2002
IEEE
10 years 29 days ago
Waterfilling: a connection between information theoretic and perceptually based watermarking
We present a hybrid approach to image watermarking that exploits results from both information theory and perceptual studies. Towards this purpose we use a waterfilling-type algor...
Siva Somasundaram, Rajarathnam Chandramouli
ICIP
2002
IEEE
10 years 29 days ago
No-reference perceptual quality assessment of JPEG compressed images
Human observers can easily assess the quality of a distorted image without examining the original image as a reference. By contrast, designing objective No-Reference (NR) quality ...
Hamid R. Sheikh, Zhou Wang, Alan C. Bovik
ICIP
2002
IEEE
10 years 29 days ago
Unsupervised image segmentation via Markov trees and complex wavelets
The goal in image segmentation is to label pixels in an image based on the properties of each pixel and its surrounding region. Recently Content-Based Image Retrieval (CBIR) has e...
Cián W. Shaffrey, Ian Jermyn, Nick G. Kings...
ICIP
2002
IEEE
10 years 29 days ago
Scalable compression of volumetric images
An important problem in medical imaging is that of ef?cient volumetric image compression. In addition to compression ef?ciency, scalable representations which allow access to the ...
Andrew Secker, Raymond Leung, David Taubman
ICIP
2002
IEEE
10 years 29 days ago
A recursive shape error concealment algorithm
The encoding of shape information is a distinguishing feature of MPEG-4. In error prone communication networks, it is important and efficient to conceal shape errors spatially, so...
Guido M. Schuster, Xiaohuan Li, Aggelos K. Katsagg...
ICIP
2002
IEEE
10 years 29 days ago
Complexity regularized shape estimation from noisy Fourier data
We consider the estimation of an unknown arbitrary 2D object shape from sparse noisy samples of its Fourier transform. The estimate of the closed boundarycurve is parametrized by ...
Natalia A. Schmid, Yoram Bresler, Pierre Moulin
ICIP
2002
IEEE
10 years 29 days ago
Wavelet-based enhancement and denoising using multiscale structure tensor
In this paper, a concept called multiscale structure tensor is introduced, as an extension of the single-scale structure tensor. It is based on a redundant dyadic wavelet transfor...
Paul Scheunders
ICIP
2002
IEEE
10 years 29 days ago
Benchmarking and hardware implementation of JPEG-LS
The JPEG-LS algorithm is one of the recently designated standards for lossless compression of grayscale and color images. In this paper, simulation results for lossless and near l...
Andreas E. Savakis, Michael D. Piorun
ICIP
2002
IEEE
10 years 29 days ago
New perspectives on camera calibration using geometric algebra
Augusto Sarti, Claudio Defferara, Fabio Negroni, S...
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