نتایج جستجو برای: optical testing

تعداد نتایج: 598956  

Journal: :Applied optics 2007
Hailiang Zhang Haiqing Xianyu Jianhua Liang Yan Bétrémieux Gregory P Crawford John Noto Robert Kerr

We demonstrate the use of a switchable circular-to-point converter (SCPC) device based on holographic polymer-dispersed liquid-crystal technology for application in lidar detection and optical telecommunication. A SCPC device converts the Fabry-Perot ring pattern into a single point or an array of points, while an external electrical field on the SCPC deactivates the conversion. Stacking differ...

2002
Aidan Delaney Thomas J. Naughton

This paper describes the emulation of an unconventional model of computation inspired by the field of optical computing. The model could be described as a random access machine with registers that hold continuous twodimensional images. Our development employed a combination of eXtreme Programming, unit and integration testing with junit, and design patterns. In the final product we implemented ...

2017
Tyler Reyno Peter Ross Underhill Thomas W. Krause Catharine Marsden Diane Wowk

Surface damage on honeycomb aircraft panels is often measured manually, and is therefore subject to variation based on inspection personnel. Eddy current testing (ECT) is sensitive to variations in probe-to-specimen spacing, or lift-off, and is thus promising for high-resolution profiling of surface damage on aluminum panels. Lower frequency testing also allows inspection through the face sheet...

Journal: :international journal of optics and photonics 0
elham yousefi mohsen hatami sajjad dehghani

we solve the coupled mode equations governing the chalcogenide nonlinear fiber bragg gratings (fbgs) numerically, and obtain the bistability characteristics. the characteristics of the chalcogenide nonlinear fbgs such as: switching threshold intensity, bistability interval, on-off switching ratio are studied. the effects of fbg length and its third order nonlinear refractive index on fbg charac...

2012
Myongchan Kim Sungkil Lee Seungmoon Choi

New-generation media such as the 4D film have appeared lately to deliver immersive physical experiences, yet the authoring has relied on content artists, impeding the popularization of such media. An automated approach for the authoring becomes increasingly crucial in lowering production costs and saving user interruption. This paper presents a fully automated framework of authoring tactile eff...

2011
Giuseppe Procaccianti Antonio Vetro Luca Ardito Maurizio Morisio

Background. Energy awareness in the ICT has become an important issue: ICT is both a key player in energy efficiency, and a power drainer. Focusing on software, recent work suggested the existence of a relationship between power consumption, software configuration and usage patterns in computer systems. Aim. The aim of this work was collecting and analysing power consumption data of a general-p...

2010
Ming-Jen Wang Chien-Hao Tseng Cherng-Yeu Shen

This paper introduces an augmented reality authoring tool that allows users to edit and publish an examination application with the Augmented Reality (AR) interface. The AR authoring system in this paper is constructed with the help of ARToolKit, a widely used open source for AR. This unique system can help users with no programming knowledge to build AR applications quickly and efficiently. 2D...

2004
Mónica Benito Daniel Peña

A common objective in image analysis is dimensionality reduction. The most common often used data-exploratory technique with this objective is principal component analysis. We propose a new method based on the projection of the images as matrices after a Procrustes rotation and show that it leads to a better reconstruction of images.

2012
Hervé Bredin Johann Poignant Makarand Tapaswi Guillaume Fortier Viet Bac Le Thibault Napoléon Hua Gao Claude Barras Sophie Rosset Laurent Besacier Jakob J. Verbeek Georges Quénot Frédéric Jurie Hazim Kemal Ekenel

The Repere challenge is a project aiming at the evaluation of systems for supervised and unsupervised multimodal recognition of people in TV broadcast. In this paper, we describe, evaluate and discuss QCompere consortium submissions to the 2012 Repere evaluation campaign dry-run. Speaker identification (and face recognition) can be greatly improved when combined with name detection through vide...

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