نتایج جستجو برای: عکاسی HDR

تعداد نتایج: 3411  

ژورنال: :معماری و شهرسازی آرمان شهر 0
منصوره طاهباز استادیار معماری، دانشکده ی معماری و شهرسازی، دانشگاه شهید بهشتی، تهران، ایران. مرضیه هومانی راد کارشناس ارشد معماری، دانشکده ی معماری دانشگاه آزاد اسلامی واحد خوراسگان، اصفهان، ایران. حسنی تمله کارشناس ارشد معماری، دانشکده ی معماری، دانشگاه کینگ مونگکوت، بانکوک، تایلند.

معماران تاریخی در طراحی فضا برای سهولت ایجاد رابطه بین خالق و مخلوق از ابزارهای مختلفی بهره گرفته اند؛ آن ها با به کارگیری نور، نماد وحدت الهی، سعی داشتند تا جلوه ای از ذات الهی را در ذهن بیننده به تصویر بکشند. به سبب جایگاه ارزشمند نور در باور ایرانی و رابطه ی مستقیم آن با قلمروی حکمت و فلسفه کامل ترین بازخوانی می تواند بر روی فضاهای نیایشی انجام شود. درنتیجه بهترین گزینه برای بررسی نسبت نور و...

2002
T. Idé H. Numata H. Mizuta Y. Taira M. Suzuki M. Noguchi

Using the notion of discrepancy, we developed a new technique for generating uniformly distributed dot patterns. We designed and prototyped a light guide having prismatic grooves and micro scatterers on the surface. We experimentally confirmed that the new pattern of the micro scatterers effectively prevents moiré patterns, and improves the luminance homogeneity.

Journal: :Emergency medicine journal : EMJ 2012
Gavin Smith Amee Morgans David McD Taylor Peter Cameron

BACKGROUND The human dive reflex (HDR), a physiological phenomenon similar to the bradycardia reflex used by marine mammals during prolonged submersion, can be employed in managing paroxysmal supraventricular tachycardia (PSVT). This review aims to identify a standardised HDR technique for haemodynamically stable PSVT, to determine the effectiveness of the HDR and to define its usefulness in th...

2005
Philip C. Njemanze

Njemanze, P.C. Asymmetry of cerebral blood flow velocity response to color processing and hemodynamic changes during -6 degrees 24-hour head-down bed rest in men. J. Grav. Physiol. 12(2):??-??, 2005. Color stimulation may evoke significant cerebral responses that may be altered by head-down bed rest (HDR). Eight men were examined in supine horizontal position, with 30 deg head-up (Pre-HDR), and...

2012

As new displays and cameras offer enhanced color capabilities, there is a need to extend the precision of digital content. High Dynamic Range (HDR) imaging encodes images and video with higher than normal bit-depth precision, enabling representation of the complete color gamut and the full visible range of luminance. This thesis addresses three problems of HDR imaging: the measurement of visibl...

2015
Rafał K. Mantiuk Karol Myszkowski Hans-Peter Seidel R. K. Mantiuk K. Myszkowski

High dynamic range (HDR) images and video contain pixels, which can represent much greater range of colors and brightness levels than that offered by existing, standard dynamic range images. Such “better pixels” greatly improve the overall quality of visual content, making it appear much more realistic and appealing to the audience. HDR is one of the key technologies of the future imaging pipel...

Journal: :iranian journal of radiation research 0
m.a. gadhi bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan s.a. buzdar department of physics, the islamia university of bahawalpur, pakistan m. afzal department of physics, the islamia university of bahawalpur, pakistan sh. fatmi bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan m.s. akhtar bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan a.h. nizamani department of physics, university of sind, jamshoro, hyderabad, pakistan

background: the effectiveness and safety of brachytherapy treatment is mainly concerned with the calibration of sources and their traceability to internationally accepted standards. secondary standard dosimetry laboratory (ssdl) does not offer calibration of ionization chambers with gamma-ray spectrum of high dose rate source 192ir . this work has been carried out to calibrate the high dose rat...

2014
Manish Narwaria Matthieu Perreira Da Silva Patrick Le Callet Romuald Pépion

High Dynamic Range (HDR) signals capture much higher contrasts as compared to the traditional 8-bit low dynamic range (LDR) signals. This is achieved by representing the visual signal via values that are related to the real-world luminance, instead of gamma encoded pixel values which is the case with LDR. Therefore, HDR signals cover a larger luminance range and tend to have more visual appeal....

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Elizabeth M Kass Hildur R Helgadottir Chun-Chin Chen Maria Barbera Raymond Wang Ulrica K Westermark Thomas Ludwig Mary Ellen Moynahan Maria Jasin

Homology-directed repair (HDR) is a critical pathway for the repair of DNA double-strand breaks (DSBs) in mammalian cells. Efficient HDR is thought to be crucial for maintenance of genomic integrity during organismal development and tumor suppression. However, most mammalian HDR studies have focused on transformed and immortalized cell lines. We report here the generation of a Direct Repeat (DR...

Journal: :EURASIP J. Image and Video Processing 2016
Emanuele Maiorana Patrizio Campisi

High dynamic range (HDR) imaging techniques address the need to capture the full range of color and light that the human eyes can perceive in the real world. HDR technology is becoming more and more pervasive. In fact, most of the cameras and smartphones available on the market are capable of capturing HDR images. Among the challenges posed by the spread of this new technology there is the incr...

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