Results 251 to 260 of about 14,778,763 (297)
Some of the next articles are maybe not open access.
A model of the inversion process in an arterial inversion experiment
NMR in Biomedicine, 1997A model of the behavior of spins moving through spatially varying gradient and B1 fields is presented. The model simulates the adiabatic behavior of flowing arterial water during a two-coil arterial inversion experiment. Predictions of the degree of inversion generated by the model are compared with flow phantom results for a wide range of gradient ...
K I, Marro, C E, Hayes, M J, Kushmerick
openaire +2 more sources
2006
In this paper a novel camera model, the inversion camera model, is introduced, which encompasses the standard pinhole camera model, an extension of the division model for lens distortion, and the model for catadioptric cameras with parabolic mirror. All these different camera types can be modeled by essentially varying two parameters.
Christian Perwass, Gerald Sommer
openaire +2 more sources
In this paper a novel camera model, the inversion camera model, is introduced, which encompasses the standard pinhole camera model, an extension of the division model for lens distortion, and the model for catadioptric cameras with parabolic mirror. All these different camera types can be modeled by essentially varying two parameters.
Christian Perwass, Gerald Sommer
openaire +2 more sources
Recursive inversion models for permutations
Statistics and Computing, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marina Meila +2 more
openaire +2 more sources
A model for inversion polymorphism
Journal of Theoretical Biology, 1972Abstract Equations are derived which describe the interaction between selection and recombination under conditions of inversion polymorphism. An exhaustive list of equilibria is provided and a partial analysis of stability is given. In particular, it is found that certain systems lacking inversion are inherently unstable.
openaire +2 more sources
Inversion of imaging mechanisms by regularization of inverse Volterra models
Signal Processing, 2004An imaging mechanism is defined as the process by which a sensor obtains an image of a physical reality. The inversion of the imaging mechanism can be a solution when one needs to measure some physical magnitude from imaging data. In this paper we propose a general method to model and invert such imaging mechanisms.
Inglada, Jordi +2 more
openaire +1 more source
Inverse modelling of snow depths
Environmental Modelling & Software, 2018Abstract Operational snow forecasting models contain parameters for which site-specific values are often unknown. As an improvement a Bayesian procedure is suggested that estimates, from past observations, site-specific parameters with confidence intervals. It turned out that simultaneous estimation of all parameters was most accurate. From 2.5 years
Uwe Schlink, Daniel Hertel
openaire +1 more source
Inverse Procedural Modeling of Knitwear
2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019The analysis and modeling of cloth has received a lot of attention in recent years. While recent approaches are focused on woven cloth, we present a novel practical approach for the inference of more complex knitwear structures as well as the respective knitting instructions from only a single image without attached annotations. Knitwear is produced by
Elena Trunz +5 more
openaire +1 more source
2015
This book provides a comprehensive introduction to the techniques, tools and methods for inverse problems and data assimilation, and is written at the interface between mathematics and applications for students, researchers and developers in mathematics, physics, engineering, acoustics, electromagnetics, meteorology, biology, environmental and other ...
Gen Nakamura, Roland Potthast
openaire +1 more source
This book provides a comprehensive introduction to the techniques, tools and methods for inverse problems and data assimilation, and is written at the interface between mathematics and applications for students, researchers and developers in mathematics, physics, engineering, acoustics, electromagnetics, meteorology, biology, environmental and other ...
Gen Nakamura, Roland Potthast
openaire +1 more source
Camera model for inverse perspective
ACM SIGGRAPH ASIA 2010 Posters, 2010Inverse perspective is a convention of perspective drawing where the farther the objects are, the larger they are drawn. That kind of artistic rendering[Agrawala et al. 2000; Coleman and Singh 2004] is an important research area in Computer Graphics, however not so many research works were done for this projection property.
Masashi Baba +3 more
openaire +1 more source
INVERSE MODELING IN GEOPHYSICAL APPLICATIONS
Applied and Industrial Mathematics in Italy II, 2007The interpretation of the potential fleld data is an useful tool that allows for both investigating the subsurface structures and providing a quantitative evaluation of the geophysical process preceding and accompanying period of volcanic unrest. Potential fleld inversion problem are required to combine forward models with appropriate optimization ...
Daniele Carbone +4 more
openaire +1 more source