نتایج جستجو برای: multiscale

تعداد نتایج: 18405  

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2008
D J W Evans P V Lawford J Gunn D Walker D R Hose R H Smallwood B Chopard M Krafczyk J Bernsdorf A Hoekstra

The inherent complexity of biomedical systems is well recognized; they are multiscale, multiscience systems, bridging a wide range of temporal and spatial scales. While the importance of multiscale modelling in this context is increasingly recognized, there is little underpinning literature on the methodology and generic description of the process. The COAST (complex autonoma simulation techniq...

2000
Ramesh Neelamani Justin Romberg Hyeokho Choi Rudolf Riedi Richard Baraniuk

We develop a general framework to simultaneously exploit texture and shape characterization in multiscale image segmentation. By posing multiscale segmentation as a model selection problem, we invoke the powerful framework ooered by minimum description length (MDL). This framework dictates that multiscale segmentation comprises multiscale texture characterization and multiscale shape coding. An...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2014
Sergey Karabasov Dmitry Nerukh Alfons Hoekstra Bastien Chopard Peter V Coveney

Multiscale systems that are characterized by a great range of spatial–temporal scales arise widely in many scientific domains. These range from the study of protein conformational dynamics to multiphase processes in, for example, granular media or haemodynamics, and from nuclear reactor physics to astrophysics. Despite the diversity in subject areas and terminology, there are many common challe...

Journal: :Mathematical biosciences and engineering : MBE 2007
Dana Paquin Doron Levy Lei Xing

An image registration technique is presented for the registration of medical images using a hybrid combination of coarse-scale landmark and B-splines deformable registration techniques. The technique is particularly effective for registration problems in which the images to be registered contain large localized deformations. A brief overview of landmark and deformable registration techniques is...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2014
Alfons Hoekstra Bastien Chopard Peter Coveney

We argue that, despite the fact that the field of multiscale modelling and simulation has enjoyed significant success within the past decade, it still holds many open questions that are deemed important but so far have barely been explored. We believe that this is at least in part due to the fact that the field has been mainly developed within disciplinary silos. The principal topics that in ou...

Journal: :SIAM J. Math. Analysis 2012
Andreas Weinmann

We investigate interpolatory multiscale transformations for functions between manifolds which are based on interpolatory subdivision rules. We characterize the HölderZygmund smoothness of a function between manifolds in terms of the coe cient decay w.r.t. this multiscale transform.

2011
João M. F. Rodrigues J. M. Hans du Buf

Human observers can very rapidly and accurately categorise scenes. This is context or gist vision. In this paper we present a biologically plausible scheme for gist vision which can be integrated into a complete cortical vision architecture. The model is strictly bottom-up, employing state-of-the-art models for feature extractions. It combines five cortical feature sets: multiscale lines and ed...

2010
Walter de Back Jörn Starruß

How a fertilized egg develops into a multicellular organism remains one of the most challenging questions in biology. Novel techniques provides unprecedented high-resolution data on the spatiotemporal dynamics of the developing embryo. However, interpretation of these data requires both wet lab experiments and computational modeling (Oates et al., 2009). Here, we present a new modeling environm...

Journal: :Briefings in bioinformatics 2016
Antonio Cappuccio Paolo Tieri Filippo Castiglione

One of the greatest challenges in biomedicine is to get a unified view of observations made from the molecular up to the organism scale. Towards this goal, multiscale models have been highly instrumental in contexts such as the cardiovascular field, angiogenesis, neurosciences and tumour biology. More recently, such models are becoming an increasingly important resource to address immunological...

Journal: :Computers & Chemical Engineering 2009
Aidong Yang Wolfgang Marquardt

Multiscale modeling has recently been widely used in various fields of science and engineering. A few research efforts have attempted to generalize existing applications mainly by means of classifying multiscale modeling paradigms, to reach a general understanding of multiscale modeling. However, these existing efforts have been largely inductive and abstracting from the applications the resear...

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