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ACCV
2010
Springer
13 years 2 months ago
Planar Affine Rectification from Change of Scale
A method for affine rectification of a plane exploiting knowledge of relative scale changes is presented. The rectifying transformation is fully specified by the relative scale cha...
Ondrej Chum, Jiri Matas
ICCV
2007
IEEE
14 years 9 months ago
Spatio-Temporal Shape from Silhouette using Four-Dimensional Delaunay Meshing
We propose a novel method for computing a fourdimensional (4D) representation of the spatio-temporal visual hull of a dynamic scene, based on an extension of a recent provably cor...
Ehsan Aganj, Jean-Philippe Pons, Florent Sé...
FGR
2011
IEEE
340views Biometrics» more  FGR 2011»
12 years 11 months ago
Action unit detection using sparse appearance descriptors in space-time video volumes
— Recently developed appearance descriptors offer the opportunity for efficient and robust facial expression recognition. In this paper we investigate the merits of the family o...
Bihan Jiang, Michel François Valstar, Maja ...
RT
2004
Springer
14 years 28 days ago
A Spectral-particle hybrid method for rendering falling snow
Falling snow has the visual property that it is simultaneously a set of discrete moving particles as well as a dynamic texture. To capture the dynamic texture properties of fallin...
Michael S. Langer, Linqiao Zhang, Allison W. Klein...
ACCV
2010
Springer
13 years 2 months ago
A Unified Approach to Segmentation and Categorization of Dynamic Textures
Dynamic textures (DT) are videos of non-rigid dynamical objects, such as fire and waves, which constantly change their shape and appearance over time. Most of the prior work on DT ...
Avinash Ravichandran, Paolo Favaro, René Vi...