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BMVC
1998
13 years 10 months ago
Spatial Filtering Requirements for Gradient-Based Optical Flow Measurement
When using a gradient-basedmethod to determine the optical flow field for an image sequence, it is generally appreciated that some spatial pre-filtering of the images is usually n...
William J. Christmas
MVA
1990
133views Computer Vision» more  MVA 1990»
13 years 10 months ago
An Application of Optical Flow - Extraction of Facial Expression -
This report discusses a method that uses optical flow to estimate facial muscle movements which could then be recognized these movements as facial expressions. The. human face has...
Kenji Mase
SCVMA
2004
Springer
14 years 2 months ago
A Generative Model of Dense Optical Flow in Layers
We introduce a generative model of dense flow fields within a layered representation of 3-dimensional scenes. Using probabilistic inference and learning techniques (namely, varia...
Anitha Kannan, Brendan J. Frey, Nebojsa Jojic
ICIP
2003
IEEE
14 years 10 months ago
Optical flow estimation based on the extraction of motion patterns
In this paper, a new methodology for optical flow estimation that is able to represent multiple motions is presented. To separate motions at the same location, a new frequency-dom...
Jesús Chamorro-Martínez, Joaqu&iacut...
ICMCS
2006
IEEE
231views Multimedia» more  ICMCS 2006»
14 years 2 months ago
Performance of Optical Flow Techniques on Graphics Hardware
Since graphics cards have become programmable the recent years, numerous computationally intensive algorithms have been implemented on the now called General Purpose Graphics Proc...
Marko Durkovic, Michael Zwick, Florian Obermeier, ...