نتایج جستجو برای: hdr

تعداد نتایج: 2738  

Journal: :Thorax 2001
M R Kramer A Katz A Yarmolovsky D Schifter E Fenig

High dose rate (HDR) endobronchial brachytherapy is a palliative treatment for symptomatic airway obstruction by malignant tumours. We report a novel use of HDR brachytherapy for treating non-malignant bronchial obstruction. The patient had a metal stent placed in a reconstructed airway after a bronchial tear to ensure patency. Granulation tissue formation in and around the stent caused symptom...

2017
Anne-Flore Perrin Cambodge Bist Rémi Cozot Touradj Ebrahimi

Although HDR content processing, coding and quality assessment have been largely addressed in the last few years, little to no work has been concentrating on how to assess quality in HDR for 360◦ or omnidirectional content. This paper is an attempt to answer to various questions in this direction. As a minimum, a new data set for 360◦ HDR content is proposed and a new methodology is designed to...

2016
Astrid Glaser Bradley McColl Jim Vadolas

To the Editor: Genome editing via programmable endonucleases enables us to generate site-specific double-strand breaks at virtually any position in a target genome.1–3 Exploiting cellular repair mechanisms, this can be used for targeted gene disruption via nonhomologous end joining (NHEJ) or for the precise manipulation of a target sequence through homology-directed repair (HDR) in the presence...

Journal: :Cancer research 2008
Liping Li Hong Wang Eddy S Yang Carlos L Arteaga Fen Xia

The epidermal growth factor receptor (EGFR) family has been implicated in several cancers, including breast, and its members have become the target of novel cancer therapies. In this report, we show a novel link between erlotinib, a potent EGFR inhibitor, DNA damage, and homology-directed recombinational repair (HDR) in human breast cancer cells. Erlotinib suppresses HDR. This is not secondary ...

2010
Frank Y. Shih Yuan Yuan

High Dynamic Range (HDR) images use a wider range of intensity values than the common Limited Dynamic Range (LDR) images. Because of this, handling HDR images requires a great deal of information to be stored and transferred. To represent and display HDR images efficiently, a trade-off needs to be balanced between size and accuracy. We present a new wavelet-based algorithm for encoding HDR imag...

2014
Jan Fröhlich Stefan Grandinetti Bernd Eberhardt Simon Walter Andreas Schilling Harald Brendel

High quality video sequences are required for the evaluation of tone mapping operators and high dynamic range (HDR) displays. We provide scenic and documentary scenes with a dynamic range of up to 18 stops. The scenes are staged using professional film lighting, make-up and set design to enable the evaluation of image and material appearance. To address challenges for HDR-displays and temporal ...

2015
Gaurav Tiwari Pushpi Rani

We presented a survey on High-dynamic-range imaging (HDRI or HDR) is a set of methods used in the imagingand photography to reproduce a superior dynamic range of luminosity than regular digital imaging or photographic methods can do. HDR images can denote a superior range of the luminance levels than can be attained using the extra 'classical' techniques. Images such as those holding many actua...

2012
John J. McCann

Our High-Dynamic-Range (HDR) world is the result of nonuniform illumination. We like to believe that 21st century technology makes it possible to accurately reproduce any scene. On further study, we find that scene rendition remains a best compromise. Despite all the remarkable accomplishments in digital imaging, we cannot capture and reproduce the light in the world exactly. With still further...

Journal: :CoRR 2018
Siyeong Lee Gwon Hwan An Suk-Ju Kang

In this paper, we propose a novel deep neural network model that reconstructs a high dynamic range (HDR) image from a single low dynamic range (LDR) image. The proposed model is based on a convolutional neural network composed of dilated convolutional layers, and infers LDR images with various exposures and illumination from a single LDR image of the same scene. Then, the final HDR image can be...

Journal: :American journal of physiology. Heart and circulatory physiology 2000
C A Ray

Muscle sympathetic nerve activity (MSNA) is altered by vestibular otolith stimulation. This study examined interactive effects of the vestibular system and baroreflexes on MSNA in humans. In study 1, MSNA was measured during 4 min of lower body negative pressure (LBNP) at either -10 or -30 mmHg with subjects in prone posture. During the 3rd min of LBNP, subjects lowered their head over the end ...

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