Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Variational Technique"”.
-
A variational technique for three-dimensional reconstruction of local structure
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 1999.
-
Learning the dynamics of deformable objects and recursive boundary estimation using curve evolution techniques
… estimation in a static image, we introduce a variational technique that incorporates the spatial statistics of the underlying field to segment the boundary and estimate the field on either side of the boundary. For image segmentation across a sequence of frames, we propose a method for …
-
The growth of density fluctuations in a finite sized inhomogeneous plasma
… of the bounded inhomogeneous plasma. A variational technique has been developed to calculate these spatial eigenfunctions. Three separate approximations for the resulting temporal equations have been taken, which show that coupling between modes due to the beating of spatial …
-
Computational methods for the shape from shading problem
… surfaces. The second approach considers Horn's variational technique as a basis for producing a fast solver. We devise a discretization scheme coupled with a special continuation-multi grid method for this formulation. We also allow for multiple image data and explicit knowledge of the location …
-
The development of rail-head acoustic roughness
… in the contact. The contact model is based on a variational technique, taking account of non-Hertzian and transient effects. A novel feature of the rolling contact model is the introduction of a velocity-dependent friction coefficient. In rolling contact this leads to a high frequency stick-slip …
-
Bayesian sparsity learning with variational automatic relevance determination
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
-
New contributions on motion estimation through optical flow techniques applied to cardiac magnetic resonance imaging = Nuevas contribuciones en estimación de movimiento mediante técnicas de flujo óptico aplicado a imagen de resonancia magnética cardiaca
… imaging sequences, based on optical flow techniques. The starting point has been the frequency-based methods biologically inspired and the differential methods based on a variational approach. The first method proposed is based on a spatiotemporal-frequency (STF) approach. More …