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» Locality of Queries and Transformations
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CAE
2007
15 years 7 months ago
An Efficient Perception-based Adaptive Color to Gray Transformation
The visualization of color images in gray scale has high practical and theoretical importance. Neither the existing local, gradient based methods, nor the fast global techniques g...
László Neumann, Martin Cadík,...
CORR
2008
Springer
140views Education» more  CORR 2008»
15 years 4 months ago
A Cloning Pushout Approach to Term-Graph Transformation
We address the problem of cyclic termgraph rewriting. We propose a new framework where rewrite rules are tuples of the form (L, R, , ) such that L and R are termgraphs representing...
Dominique Duval, Rachid Echahed, Fréd&eacut...
TMI
2008
84views more  TMI 2008»
15 years 4 months ago
Optimal Wavelet Transform for the Detection of Microaneurysms in Retina Photographs
In this article, we propose an automatic method to detect microaneurysms in retina photographs. Microaneurysms are the most frequent and usually the first lesions to appear as a co...
Gwénolé Quellec, Mathieu Lamard, P. ...
TELSYS
2010
94views more  TELSYS 2010»
15 years 3 months ago
An improved Hurst parameter estimator based on fractional Fourier transform
A fractional Fourier transform (FrFT) based estimation method is introduced in this paper to analyze the long range dependence (LRD) in time series. The degree of LRD can be chara...
Yangquan Chen, Rongtao Sun, Anhong Zhou
ICIP
2010
IEEE
15 years 2 months ago
Intra frame coding with template matching prediction and adaptive transform
For natural images, there are usually repeating similar contents but hard to be well predicted locally. Prediction using template matching is an effective technology to exploit su...
Cuiling Lan, Jizheng Xu, Feng Wu, Guangming Shi