Image analysis – Pattern recognition – Template matching
Reexamination Certificate
2006-07-11
2006-07-11
Chawan, Sheela (Department: 2623)
Image analysis
Pattern recognition
Template matching
C382S224000, C703S017000, C704S256100
Reexamination Certificate
active
07076102
ABSTRACT:
A method and apparatus are disclosed for automatically learning and identifying events in image data using hierarchical HMMs to define and detect one or more events. The hierarchical HMMs include multiple paths that encompass variations of the same event. Hierarchical HMMs provide a framework for defining events that may be exhibited in various ways. Each event is modeled in the hierarchical HMM with a set of sequential states that describe the paths in a high-dimensional feature space. These models can then be used to analyze video sequences to segment and recognize each individual event to be recognized. The hierarchical HMM is generated during a training phase, by processing a number of images of the event of interest in various ways, typically observed from multiple viewpoints.
REFERENCES:
patent: 5381513 (1995-01-01), Tsuboka
patent: 6092045 (2000-07-01), Stubley et al.
patent: 6591146 (2003-07-01), Pavlovic et al.
patent: 6678413 (2004-01-01), Liang et al.
patent: 6704454 (2004-03-01), Spence et al.
Bourbakis et al., “A Synergistic Model for Interpreting Human Activities and Events From Video: A Case Study,” (2000).
Bui et al, “Tracking and Surveillance in Wide-Area Spatial Environments Using the Abstract Hidden Markov Model,” Curtin University of Technology, (2001).
Jansen, Bart, “Visual Event Recognition,” Vrije Universiteit Brussel, (2000-2001).
Karaulova et al., “A Hierarchical Model of Dynamics for Tracking People with a Single Video Camera,” (2000).
Oliver et al., “A Bayesian Computer Vision System for Modeling Human Interactions,” IEEE Transaction on Pattern Analysis and Machine Intelligence, V. 22, No. 8 (2000).
Wada et al., “Multiobject Behavior Recognition by Event Dirven Selective Attention Method,” IEEE Transaction on Pattern Analysis and Machine Intelligence, V. 22, No. 8 (2000).
Brodsky Tomas
Gutta Srinivas
Lin Yun-Ting
Philomin Vasanth
Chawan Sheela
Koninklijke Philips Electronics , N.V.
LandOfFree
Video monitoring system employing hierarchical hidden markov... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video monitoring system employing hierarchical hidden markov..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video monitoring system employing hierarchical hidden markov... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3528497