Publications associées à Cinéma numérique

High speed, complex wavefront shaping using the digital micro-mirror device

Digital micro-mirror devices (DMDs) have been deployed in many optical applications. As compared to spatial light modulators (SLMs), they are characterized by their much faster refresh rates (full-frame refresh rates up to 32 kHz for binary patterns) compa ...

Nature Portfolio2021

OMiLAB: A Smart Innovation Environment for Digital Engineers

Dimitrios Kyritsis

This position paper introduces a Smart Innovation Environment for experimentation related to digital transformation projects, for the consolidation of a proposed "Digital Engineer" skill profile (with a business-oriented facet labelled as "Digital Innovato ...

SPRINGER INTERNATIONAL PUBLISHING AG2021

Automatic Content Curation of Visual Heritage

Mathieu Salzmann, Frédéric Kaplan, Delphine Ribes Lemay, Nicolas Henchoz, Valentine Bernasconi

Digitization and preservation of large heritage induce high maintenance costs to keep up with the technical standards and ensure sustainable access. Creating impactful usage is instrumental to justify the resources for long-term preservation. The Museum fü ...

2021

Performance Evaluation of Objective Image Quality Metrics on Conventional and Learning-Based Compression Artifacts

Touradj Ebrahimi, Evgeniy Upenik, Michela Testolina

Lossy image compression is a popular, simple and effective solution to reduce the amount of data representing digital pictures. In most lossy compression methods, the reduced volume of data in bits is achieved at the expense of introducing visual artifacts ...

IEEE2021

On the 2D Post-Processing of Brillouin Optical Time-Domain Analysis

Luc Thévenaz, Zhisheng Yang, Simon Adrien Zaslawski

The benefits and limitations inherent to the 2D post-processing of measurements from Brillouin optical time-domain analyzers are investigated from a fundamental point of view. In a preliminary step, the impact of curve fitting on the precision of the estim ...

IEEE Institute of Electrical and Electronics Engineers2020

Experimental investigations on the load-carrying capacity of digitally produced wood-wood connections

Yves Weinand, Julien Gamerro, Jean-François Bocquet

The rise of digital fabrication has increased the use of wood-wood connections inspired by traditional carpentry in modern timber constructions. With recent developments on standard construction systems, the mechanical behavior of such joints for in-plane ...

2020

Charge Neutralization and Direct Thrust Measurements from Bipolar Pairs of Ionic- Electrospray Thrusters

Herbert Shea, Daniel George Courtney

lectrospray (ES) thrusters are unique in their ability to emit both positive and negative beams, each contributing similarly to thrust. Spacecraft charging could be prevented without a dedicated neutralizer if currents of simultaneously emitted opposing po ...

2017

Permanence and Persistence Conception, Construction and Conversion of Modern Cinema Theatres [1910-1939]

Joana de Almeida Gouveia Oliveira Alves

This work is based on the assumption that it is possible to achieve sustainable development by preserving the twentieth century heritage. Modern European cinemas were especially vulnerable to the passing of time: in a few decades buildings with tremendous ...

EPFL2015

Toward direct light-to-digital conversion using a pulse-driven hybrid MOS-PN photodetector

Maher Kayal, Adil Koukab, Denis Sallin

In this Letter, a direct light-to-digital converter based on an MOS-PN photodetector driven by pulsed voltage is presented. The objective is to avoid any analog-to-digital or time-to-digital conversion and, thereby, to pave the way for a new generation of ...

Optical Society of America2015

On-Chip Digital Background Calibration of Pipelined Analog-to-Digital Converters using Digital Assistance to support Nonlinear Residue Amplification

Thomas Liechti

This thesis describes a novel digital background calibration scheme for pipelined ADCs with nonlinear interstage gain. Errors caused by the nonlinear gains are corrected in real-time by adaptively post-processing the digital stage outputs. The goal of this ...

EPFL2012

Maximum-Likelihood Identification of Sampled Gaussian Processes

Michaël Unser, Hagay Kirshner, Simona Maggio

This work considers sampled data of continuous-domain Gaussian processes. We derive a maximum-likelihood estimator for identifying autoregressive moving average parameters while incorporating the sampling process into the problem formulation. The proposed ...

SampTA2011

SS-SSIM and MS-SSIM for digital cinema applications

Touradj Ebrahimi

One of the key issues for a successful roll out of digital cinema is in the quality it offers. The most practical and least expensive way of measuring quality of multimedia content is through the use of objective metrics. In addition to the widely used obj ...

SPIE2009

Analysis of SSIM performance for Digital Cinema applications

Touradj Ebrahimi

Visual quality is one of the most important issues in digital cinema applications, and the most practical method to measure visual quality is using objective metrics. Several objective metrics that take into account perceived visual quality have been devel ...

2009

Energy Dissipation Reduction of a Cardiac Event Detector in the Sub-Vt Domain By Architectural Folding

Yusuf Leblebici, Omer Can Akgun

This manuscript presents the digital hardware realization of a wavelet based event detector for cardiac pacemaker applications. The architecture of the detector is partially folded to minimize hardware cost. An energy model is applied to evaluate the energ ...

2009

Subthreshold Source-Coupled Logic Circuits for Ultra Low Power Applications

Seyed Armin Tajalli, Eric Vittoz, Yusuf Leblebici

This article presents a novel approach for implementing ultra-low power digital components and systems using source-coupled logic (SCL) circuit topology, operating in weak inversion (sub-threshold) regime. PMOS transistors with shorted drain-substrate cont ...

2008

CMOS realization of two-dimensional mixed analog-digital Hamming distance discriminator circuits for real-time imaging applications

Alexandre Schmid, Yusuf Leblebici, Stéphane Badel

The architecture of an integrated Hamming artificial neural network, and its use as a versatile signal/image processing circuit is presented. The circuit operation relies oil the charge-based processing of sum-of-products terms, complemented with digital p ...

2008