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ICIP
1995
IEEE
13 years 8 months ago
A harmonic retrieval framework for discontinuous motion estimation
Abstract— Motion discontinuities arise when there are occlusions or multiple moving objects in the scene that is imaged. Conventional regularization techniques use smoothness con...
Wei-Ge Chen, Georgios B. Giannakis, N. Nandhakumar
ECCV
1994
Springer
14 years 6 months ago
Recursive Non-Linear Estimation of Discontinuous Flow Fields
Abstract. This paper de nes a temporal continuity constraint that expresses assumptions about the evolution of 2D image velocity, or optical ow, over a sequence of images. Temporal...
Michael J. Black
ISBI
2006
IEEE
14 years 5 months ago
Joint estimation in MRI using harmonic retrieval methods
One of the key factors affecting functional MRI image reconstruction is field inhomogeneity. It is desirable to estimate both the distortion-free MRI image and field map simultane...
Hien M. Nguyen, Robert L. Morrison Jr., Bradley P....
IJCV
2006
227views more  IJCV 2006»
13 years 4 months ago
A Multigrid Platform for Real-Time Motion Computation with Discontinuity-Preserving Variational Methods
Variational methods are among the most accurate techniques for estimating the optic flow. They yield dense flow fields and can be designed such that they preserve discontinuities, ...
Andrés Bruhn, Joachim Weickert, Timo Kohlbe...
IPMI
2005
Springer
14 years 5 months ago
Spherical Navigator Registration Using Harmonic Analysis for Prospective Motion Correction
Spherical navigators are an attractive approach to motion compensation in Magnetic Resonance Imaging. Because they can be acquired quickly, spherical navigators have the potential ...
Christopher L. Wyatt, Narter Ari, Robert A. Kraft