نتایج جستجو برای: three dimensional flow

تعداد نتایج: 1939145  

2016
Stanislav Katina Kathryn McNeil Ashraf Ayoub Brendan Guilfoyle Balvinder Khambay Paul Siebert Federico Sukno Mario Rojas Liberty Vittert John Waddington Paul F. Whelan Adrian W. Bowman

The analysis of shape is a key part of anatomical research and in the large majority of cases landmarks provide a standard starting point. However, while the technology of image capture has developed rapidly and in particular three-dimensional imaging is widely available, the definitions of anatomical landmarks remain rooted in their two-dimensional origins. In the important case of the human f...

Journal: :Optics express 2014
Giulia Ghielmetti Christof M Aegerter

We present a method to directly image fluorescent structures inside turbid media. This is based on wave-front shaping to optimize the scattered light onto a single fluorescent particle, as the optical memory effect for a scanning image of the surroundings of this particle. We show that iterating the optimization leads to the focusing on a single particle whose surroundings are subsequently scan...

2006
Yonggang Huang Yunhong Wang Tieniu Tan

In this paper, we present a new method for face recognition using range data. The proposed method is based on both global statistics of geometrical features and local statistics of correlative features of facial surfaces. Firstly, we analyze the performances of common geometrical representations by using global histograms for matching. Secondly, we propose a new method to encode the relationshi...

2010
Jeroen Johannes van der Ham D. Simeonidou Anneke Joosten

geboren te Breda. This work was carried out in the ASCI graduate school. ASCI dissertation series number 194.

Journal: :Applied optics 2010
Yossi Ben-Aderet Er'el Granot Shmuel Sternklar Tzachi Tal Natan S Kopeika

Optical impulse-response characterization of diffusive media can be of importance in various applications, among them optical imaging in the security and medical fields. We present results of an experimental technique that we developed for acquiring the impulse response, based upon the Kramers-Kronig algorithm, and have been applied for optical imaging of objects hidden behind clothing. We demo...

Journal: :European heart journal cardiovascular Imaging 2012
Roberto M Lang Luigi P Badano Wendy Tsang David H Adams Eustachio Agricola Thomas Buck Francesco F Faletra Andreas Franke Judy Hung Leopoldo Pérez de Isla Otto Kamp Jaroslaw D Kasprzak Patrizio Lancellotti Thomas H Marwick Marti L McCulloch Mark J Monaghan Petros Nihoyannopoulos Natesa G Pandian Patricia A Pellikka Mauro Pepi David A Roberson Stanton K Shernan Girish S Shirali Lissa Sugeng Folkert J Ten Cate Mani A Vannan Jose Luis Zamorano William A Zoghbi

Roberto M. Lang, MD, FASE,* Luigi P. Badano, MD, FESC, Wendy Tsang, MD,* David H. Adams, MD,* Eustachio Agricola, MD, Thomas Buck, MD, FESC, Francesco F. Faletra, MD, Andreas Franke, MD, FESC, Judy Hung, MD, FASE,* Leopoldo P erez de Isla, MD, PhD, FESC, Otto Kamp, MD, PhD, FESC, Jaroslaw D. Kasprzak, MD, FESC, Patrizio Lancellotti, MD, PhD, FESC, Thomas H. Marwick, MBBS, PhD,* Marti L. McCullo...

2016
William Brent Seales Clifford Seth Parker Michael Segal Emanuel Tov Pnina Shor Yosef Porath

Computer imaging techniques are commonly used to preserve and share readable manuscripts, but capturing writing locked away in ancient, deteriorated documents poses an entirely different challenge. This software pipeline-referred to as "virtual unwrapping"-allows textual artifacts to be read completely and noninvasively. The systematic digital analysis of the extremely fragile En-Gedi scroll (t...

1997
Matthew C. Forman Amar Aggoun

An integral imaging system is employed as part of a three dimensional imaging system, allowing display of full colour images with continuous parallax within a wide viewing zone. A novel approach to the problem of compressing the significant quantity of data required to represent integral 3D video is presented and it is shown that the reduction in bit cost achieved makes possible transmission vi...

Journal: :Revista espanola de cardiologia 2009
Francisco Azar Leopoldo Pérez de Isla Mar Moreno Agustín Landaeta Elena Refoyo Teresa López Fernández Carlos Macaya José Zamorano

Left atrial size and function are very important prognostic factors. Our aim was to evaluate left atrial size, function and mechanical synchrony using three-dimensional echocardiography in order to establish normal reference values. The study involved 63 healthy individuals enrolled at two hospitals. All underwent two-dimensional and three-dimensional echocardiography. Mechanical asynchrony was...

2001
Emmanuel L. Barbier Laurent Lamalle

Numerous techniques have been proposed in the last 15 years to measure various perfusion-related parameters in the brain. In particular, two approaches have proven extremely successful: injection of paramagnetic contrast agents for measuring cerebral blood volumes (CBV) and arterial spin labeling (ASL) for measuring cerebral blood flows (CBF). This review presents the methodology of the differe...

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