نتایج جستجو برای: spline with tension swt

تعداد نتایج: 9216921  

2007
Massimo Ruffolo Luigi Guadagno Inderbir Sidhu

Nowadays enterprises request information technologies that leverage structured and unstructured information for providing a single integrated view of business problems in order to foster better business process management and decision making. The growing interest in semantic technologies is due to the limitation of existing enterprise information technologies to answer these new challenging nee...

Introduction Relative dose computation is a necessary step in radiation treatment planning. Therefore, finding an approach that is both fast and accurate seems to be necessary. The purpose of this work was to investigate the feasibility of natural cubic spline to reconstruct dose maps for linear accelerator radiation treatment fields in comparison with those of the simulation. Materials and Met...

1993
Demetri Terzopoulos

This paper presents a physics-based approach for recovering the 3D shape and tracking the motion of nonrigid objects using a 3D elastically deformable balloon model. The balloon model is based on a thin-plate under tension spline which deforms to t visual data according to internal forces stemming from the elastic properties of the surface and external forces which are produced from the data. W...

Journal: :European heart journal 2005
Timo Baks Robert-Jan van Geuns Elena Biagini Piotr Wielopolski Nico R Mollet Filippo Cademartiri Eric Boersma Willem J van der Giessen Gabriel P Krestin Dirk J Duncker Patrick W Serruys Pim J de Feyter

AIMS To study recovery of segmental wall thickening (SWT), ejection fraction (EF), and end-systolic volume (ESV) after acute myocardial infarction (AMI) in patients who underwent primary stenting with drug-eluting stents. Additionally, to evaluate the predictive value of magnetic resonance imaging (MRI)-based myocardial perfusion and delayed enhancement (DE) imaging. METHODS AND RESULTS Twent...

Journal: :Applied Mathematics and Computation 2010
Libin Ma Zeyao Mo Xiaowen Xu

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t In this paper, we consider the properties of monotonicity-preserving and global conservation preserving for ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مکانیک 1393

در این تحقیق مدل خستگی جدیدی بر اساس انرژی مجازی کرنشی (vse) ارائه می شود. مدل ارائه شده برای پیش بینی عمر خستگی مواد مختلف شامل فولاد 1045، فولاد 30crnimo8hh، تیتانیوم tc4 و آلیاژ منیزم az31b اکستروژن شده تحت بارگذاری های متناسب و نامتناسب بکار رفته و صحت سنجی می شود. همچنین دو اصلاحیه آسیب-پایه برای پیش بینی عمر خستگی تحت بارگذاری های نامتناسب ارائه شده است. این اصلاحیه ها روی چند مدل خستگی پ...

Journal: :Archivos de bronconeumologia 2006
Fernanda Warken Rosa Aquiles Assungão Camelier Anamaria Fleig Mayer José Roberto Jardim

BACKGROUND A continuously paced shuttle walk test (SWTp) was developed to test the hypothesis that speed and rhythm could be more optimally imposed by an easier-to-follow sound stimulus at every step. The objective of this study was to assess the reproducibility of the SWTp and to compare the performance of patients with chronic obstructive pulmonary disease (COPD) on the conventional and optim...

Journal: :international journal of mathematical modelling and computations 0
j. rashidinia islamic azad university, central tehran branch, iran department of mathematics f. barati

quartic non-polynomial spline function approximation in off step points is developed, for the solution of fourth-order boundary value problems. using consistency relation of such spline and suitable choice of parameter,we have obtained second, fourth and sixth orders methods. convergence analysis of sixth order method has been given. the methods are illustrated by some examples, to verify the or...

2012
Deepa K Davis Rajesh Cherian Roy Xuelong Li Yanting Hu Xinbo Gao Dacheng Tao Beijia Ning Anil A Patil

Super resolution is the process of reconstructing high resolution(HR) image from multiple low resolution(LR) images of a scene . LR images are at a specific pixel shift from each other. High Resolution(HR) grids are formed from these LR images using Stationary Wavelet Transform (SWT) by image registration. Interpolation of the missing pixel in the HR grid is done using Curvelet Transform(CT). E...

Journal: :Magnetic resonance imaging 2014
Mohammad H Kayvanrad A Jonathan McLeod John S H Baxter Charles A McKenzie Terry M Peters

In addition to coil sensitivity data (parallel imaging), sparsity constraints are often used as an additional lp-penalty for under-sampled MRI reconstruction (compressed sensing). Penalizing the traditional decimated wavelet transform (DWT) coefficients, however, results in visual pseudo-Gibbs artifacts, some of which are attributed to the lack of translation invariance of the wavelet basis. We...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید