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Real-Time Optic Flow Computation with Variational Methods

2003
Variational methods for optic flow computation have the reputation of producing good results at the expense of being too slow for real-time applications. We show that real-time variational computation of optic flow fields is possible when appropriate methods are combined with modern numerical techniques. We consider the CLG method, a recent variational
Andrés Bruhn   +4 more
openaire   +1 more source

Time-Dependent Variation-Perturbation Method for Many-Electron Systems

The Journal of Chemical Physics, 1963
The variation-perturbation method for time-dependent problems is applied to many-electron systems. Specific formulas are developed for the steady-state dipolar interaction between an oscillating electric field and an atom or molecule whose wavefunction is approximated by a Hartree—Fock determinant.
M. Karplus, H. J. Kolker
openaire   +1 more source

Finite Time Observer Design by Probabilistic-Variational Methods

SIAM Journal on Control and Optimization, 1991
A notion of finite time observer for partially observed deterministic control systems is introduced; it is shown how such observers are obtained by probabilistic-variational methods. Observability plays an essential role. The procedure is carried out for finite-state discrete-time systems and continuous-time nonlinear systems, and the observers ...
openaire   +1 more source

Comparison of competing risks failure time methods and time‐independent methods for assessing strain variations in vaccine protection

Statistics in Medicine, 2000
In a preventive vaccine efficacy trial of a vaccine for a genotypically and phenotypically diverse pathogen, it is important to assess if and how vaccine protection against infection or disease varies with characteristics of the exposing pathogen. Gilbert, Self and Ashby developed statistical methods for this problem when the outcome data are counts of
openaire   +2 more sources

Variational Methods for Time-Dependent Wave Propagation Problems

2003
There is an important need for numerical methods for time dependent wave propagation problems and their many applications, for example in acoustics, electromagnetics and geophysics. Although very old, finite difference time domain methods (FDTD methods in the electromagnetics literature) remain very popular and are widely used in wave propagation ...
openaire   +1 more source

A Novel Method for Reducing Metal Variation With Statistical Static Timing Analysis

open access: closed, 2012
Eric A. Foreman   +3 more
openalex   +1 more source

Studies on Timing Jitter in WDM Dispersion-Managed System by Variational Method

open access: closed, 2000
Ming Xu   +4 more
openalex   +1 more source

Circadian rhythms and disorders of the timing of sleep

Lancet, The, 2022
Nicholas Meyer   +2 more
exaly  

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