نتایج جستجو برای: illumination analysis

تعداد نتایج: 2845693  

Journal: :jundishapur journal of health sciences 0
majid hajibabaei department of occupational hygiene, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of occupational hygiene, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6113738269, fax: +98-6113738282 samira kord department of occupational hygiene, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; student research committee, ahvaz jundishapur university of medical sciences, ahvaz, ir iran ezat rasooli department of occupational hygiene, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; student research committee, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...

Journal: :iranian journal of science and technology (sciences) 2015
e. bagherzadeh-khajeh marjan

in this paper, absorption spectra of both solution and films of cyano azobenzene polymer are investigated. the analysis of overlapped absorption spectra of polymer, related to trans and cis isomers, shows that the population of cis isomers is higher than trans isomers. it means that, cyano azobenzene molecules have a folded structure in polymer, in thermal equilibrium. presence of cyano molecul...

The Quran’s illumination forms are important parts of the Iranian illumination art. This research considers the recognition of the visual features of Quranic illumination in Qajar period. The motif, color and combination of the important factors of Quranic illumination are used to classify the illumination. These factors have been selected of the Qajar period in three versions of the illu...

ژورنال: بوم شناسی آبزیان 2017

This study investigated the integrated effects of two photoperiods (16:08 and 08:16 h) along with three light intensities (3000, 15000 and 50000 lux) on some reproductive parameters and broodstock survival rates of Artemia parthenogenetica in six treatments in a completely randomized factorial design in culture system until death. Two-way ANOVA analysis revealed significant differences in total...

2008
R.D.M. Garcia

The ADO (analytical discrete ordinates) method, a pre-processing procedure, and the break-point analysis developed for azimuthally symmetric problems in a previous work are generalized and used to solve a radiative-transfer problem defined by a finite, plane–parallel, multi-layer medium subject to Fresnel boundary and interface conditions and uniform illumination in the form of obliquely incide...

1994
Jürgen Stauder

In video telephone scenes to be transmitted at low data rates non–diffuse scene illumination has to be expected. In this contribution, non–diffuse scene illumination and 3D object motion is estimated concurrently from a monocular image sequence. Image analysis uses the source model ”3D rigid moving objects with non–diffuse illumination”. The illumination is modeled by a distant point light sour...

In this paper, a new approach is presented for improving image quality. It provides a new outlook on how to apply the enhancment methods on images. Image enhancement techniques may deal with the  illumination, resolution, or distribution of pixels values. Issues such as the illumination of the scene and reflectance of objects affect on image captures. Generally, the pixels value of an image is ...

2010
Lin Pang Juan Cao Junbo Guo Shouxun Lin Yan Song

Recently, bag of spatio-temporal local features based methods have received significant attention in human action recognition. However, it remains a big challenge to overcome intra-class variations in cases of viewpoint, geometric and illumination variance. In this paper we present Bag of Spatiotemporal Synonym Sets (ST-SynSets) to represent human actions, which can partially bridge the semanti...

Journal: :J. Electronic Imaging 2005
Ovidiu Ghita Paul F. Whelan John Mallon

Active depth from defocus (DFD) eliminates the main limitation faced by passive DFD, namely its inability to recover depth when dealing with scenes defined by weakly textured (or textureless) objects. This is achieved by projecting a dense illumination pattern onto the scene and depth can be recovered by measuring the local blurring of the projected pattern. Since the illumination pattern force...

Journal: :Comput. Graph. Forum 2012
Adrian Jarabo Tom Van Eyck Veronica Sundstedt Kavita Bala Diego Gutierrez Carol O'Sullivan

Rendering realistic illumination effects for complex animated scenes with many dynamic objects or characters is computationally expensive. Yet, it is not obvious how important such accurate lighting is for the overall perceived realism in these scenes. In this paper, we present a methodology to evaluate the perceived fidelity of illumination in scenes with dynamic aggregates, such as crowds, an...

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