Publications related to YCbCr | EPFL Graph Search

On the Limits of Perceptually Optimized JPEG

Touradj Ebrahimi, Francesca De Simone, Lutz Goldmann, Denis Filimonov

The study presented in this paper aims at quantifying the empirical limits of JPEG optimization, when the compressed stream is standard compliant and only the quantization tables are optimized. Image-dependent quantization tables, which minimize the bitrat ...

2010

The Marr Wavelet Pyramid

Michaël Unser, Dimitri Nestor Alice Van De Ville

We introduce a new semi-orthogonal complex wavelet basis of L-2(R-2). The basis functions are associated to the complex gradient-Laplace operator, which plays a central role in image processing. We define analytically a single-generator wavelet that is shi ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Calibrating the Yule-Nielsen modified spectral Neugebauer model with ink spreading curves derived from digitized RGB calibration patch images

Roger Hersch, Adish Kumar Singla, Nikhil Garg

The Yule-Nielsen modified spectral Neugebauer model (YNSN) enhanced for accounting for ink spreading in the different ink superposition conditions requires a photospectrometer to measure the reflectances of halftone calibration patches in order to compute ...

2008

The Marr Wavelet Pyramid

Michaël Unser, Dimitri Nestor Alice Van De Ville

We introduce a new semi-orthogonal complex wavelet basis of

L _{ 2 }

(\mathbb{R} ^{ 2 }

). The basis functions are associated to the complex gradient-Laplace operator, which plays a central role in image processing. We define analytically a single- ...

IEEE2008

Compact representations for static and dynamic texture synthesis

Roberto Costantini

In nature, textures can be found everywhere. Texture, together with color and shape, represents the fundamental characteristics of objects. Texture conveys an idea of repetition of a certain structure, which is not limited only to the visual domain. We can ...

EPFL2007

On the Multidimensional Extension of the Quincunx Subsampling Matrix

Michaël Unser, Dimitri Nestor Alice Van De Ville, Thierry Blu

The dilation matrix associated with the three-dimensional (3-D) face-centered cubic (FCC) sublattice is often considered to be the natural 3-D extension of the two-dimensional (2-D) quincunx dilation matrix. However, we demonstrate that both dilation matri ...

IEEE2005

Towards a planar sample support for in situ experiments in structural biology

Nico de Rooij, Terunobu Akiyama

We report about the development of a planar support for biological samples. The aim is to combine AFM and patch-clamp measurements, in order to perform simultaneous measurements of topography and electrical properties of biological membranes. Sub-micromete ...

2005

Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules

Frank Nüesch, Libero Zuppiroli, Yiming Cao, Detlef Berner, Xiao Wang

Doping of organic light-emitting devices using highly luminescent molecules is a well-established strategy to improve brightness, efficiency and lifetime or to adjust emission color and color purity. Laser dyes from the pyran-containing donor-acceptor fami ...

VSP BV, Zeist, Netherlands2004

Wavelets Versus Resels in the Context of fMRI: Establishing the Link with SPM

Michaël Unser, Dimitri Nestor Alice Van De Ville, Thierry Blu

Statistical Parametric Mapping (SPM) is a widely deployed tool for detecting and analyzing brain activity from fMRI data. One of SPM's main features is smoothing the data by a Gaussian filter to increase the SNR. The subsequent statistical inference is bas ...

SPIE2003

Modeling ink spreading for color prediction

Roger Hersch, Patrick Emmel

This study aims at modeling ink spreading in order to improve the prediction of the reflection spectra of three ink color prints. Ink spreading is a kind of dot gain which causes significant color deviations in ink jet printing. We have developed an ink sp ...

Soc. Imaging Sci. & Technol2002

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On the Limits of Perceptually Optimized JPEG

The Marr Wavelet Pyramid

Calibrating the Yule-Nielsen modified spectral Neugebauer model with ink spreading curves derived from digitized RGB calibration patch images

The Marr Wavelet Pyramid

Compact representations for static and dynamic texture synthesis

On the Multidimensional Extension of the Quincunx Subsampling Matrix

Towards a planar sample support for in situ experiments in structural biology

Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules

Wavelets Versus Resels in the Context of fMRI: Establishing the Link with SPM

Modeling ink spreading for color prediction

The Marr Wavelet Pyramid

The Marr Wavelet Pyramid

On the Multidimensional Extension of the Quincunx Subsampling Matrix

Towards a planar sample support for in situ experiments in structural biology

Space charge and polarization effects upon doping organic light-emitting diodes with pyran-containing donor-acceptor molecules

On the Limits of Perceptually Optimized JPEG

Calibrating the Yule-Nielsen modified spectral Neugebauer model with ink spreading curves derived from digitized RGB calibration patch images

Compact representations for static and dynamic texture synthesis

Wavelets Versus Resels in the Context of fMRI: Establishing the Link with SPM

Modeling ink spreading for color prediction