Publications associées à Masque flou

Gradient-Based Correction of Chromatic Aberration in the Joint Acquisition of Color and Near-Infrared Images

Sabine Süsstrunk, Yue Lu, Zahra Sadeghipoor Kermani

Chromatic aberration distortions, such as wavelength-dependent blur caused by imperfections in photographic lenses, have long been studied in color imaging. The problem becomes more challenging to solve in the case of color and near-infrared joint acquisit ...

Spie-Int Soc Optical Engineering2015

Hopfield neural network deconvolution for weak lensing measurement

Frédéric Courbin, Georges Meylan, Malte Tewes, Guldariya Nurbaeva

Weak gravitational lensing has the potential to place tight constraints on the equation of the state of dark energy. However, this will only be possible if shear measurement methods can reach the required level of accuracy. We present a new method for meas ...

EDP Sciences2015

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Alexandre Schmid, Yusuf Leblebici, Vladan Popovic, Hossein Afshari

Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a spherical geometry, each having its own vision of the surrounding and a distinct focal plane. The spherical light field camera records ligh ...

Ieee2013

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

Alexandre Schmid, Yusuf Leblebici, Vladan Popovic, Hossein Afshari, Abdulkadir Akin, Kerem Seyid, Ömer Cogal

Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a hemispherical surface, each having its own vision of the surroundings and a distinct focal plane. The spherical light field camera records ...

2013

A sensitive x-ray phase contrast technique for rapid imaging using a single phase grid analyzer

Peter Modregger, Simon Rutishauser, Christian David, Marco Stampanoni

Phase contrast x-ray imaging (PCXI) is a promising imaging modality, capable of sensitively differentiating soft tissue structures at high spatial resolution. However, high sensitivity often comes at the cost of a long exposure time or multiple exposures p ...

Optical Society of America2013

Microscopy image resolution improvement by deconvolution of complex fields

Christian Depeursinge, Nicolas Pavillon, Muhammed Fatih Toy, Yann Jérôme Michel Pascal Cotte

Based on truncated inverse filtering, a theory for deconvolution of complex fields is studied. The validity of the theory is verified by comparing with experimental data from digital holographic microscopy (DHM) using a high-NA system (NA=0.95). Comparison ...

Optical Society of America2010

A Fast Multilevel Algorithm for Wavelet-Regularized Image Restoration

Michaël Unser, Cédric René Jean Vonesch

We present a multilevel extension of the popular "thresholded Landweber" algorithm for wavelet-regularized image restoration that yields an order of magnitude speed improvement over the standard fixed-scale implementation. The method is generic and targete ...

IEEE2009

Temporal Masking for Bit-rate Reduction in Audio Codec Based on Frequency Domain Linear Prediction

Petr Motlicek, Hynek Hermansky, Sriram Ganapathy

Audio coding based on Frequency Domain Linear Prediction (FDLP) uses auto-regressive model to approximate Hilbert envelopes in frequency sub-bands for relatively long temporal segments. Although the basic technique achieves good quality of the reconstructe ...

2008

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Masque flou

Gradient-Based Correction of Chromatic Aberration in the Joint Acquisition of Color and Near-Infrared Images

Hopfield neural network deconvolution for weak lensing measurement

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

A sensitive x-ray phase contrast technique for rapid imaging using a single phase grid analyzer

Comparison of Deconvolution Software in 3D Microscopy: A User Point of View—Part 1

Microscopy image resolution improvement by deconvolution of complex fields

Face Image Enhancement Using 3D and Spectral Information

A Fast Multilevel Algorithm for Wavelet-Regularized Image Restoration

Temporal Masking for Bit-rate Reduction in Audio Codec Based on Frequency Domain Linear Prediction

Graph Chatbot

Chattez avec Graph Search

Gradient-Based Correction of Chromatic Aberration in the Joint Acquisition of Color and Near-Infrared Images

Hopfield neural network deconvolution for weak lensing measurement

Comparison of Deconvolution Software in 3D Microscopy: A User Point of View—Part 1

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

A sensitive x-ray phase contrast technique for rapid imaging using a single phase grid analyzer

Microscopy image resolution improvement by deconvolution of complex fields

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Face Image Enhancement Using 3D and Spectral Information

A Fast Multilevel Algorithm for Wavelet-Regularized Image Restoration

Temporal Masking for Bit-rate Reduction in Audio Codec Based on Frequency Domain Linear Prediction