Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-03-08
2005-03-08
Philippe, Gims (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C382S243000, C348S397100
Reexamination Certificate
active
06865226
ABSTRACT:
A method analyzes a high-level syntax and structure of a continuous compressed video according to a plurality of states. First, a set of hidden Markov models for each of the states is trained with a training video segmented into known states. Then, a set of domain specific features are extracted from a fixed-length sliding window of the continuous compressed video, and a set of maximum likelihoods is determined for each set of domain specific features using the sets of trained hidden Markov models. Finally, dynamic programming is applied to each set of maximum likelihoods to determine a specific state for each fixed-length sliding window of frames of the compressed video.
REFERENCES:
patent: 6072542 (2000-06-01), Wilcox et al.
patent: 6683968 (2004-01-01), Pavlovic et al.
patent: 20030081937 (2003-05-01), Li
John McEachen and Abdullah Cay, Masking compressed video connection utilization in ATM networks, IEEE Sep. 2001, pp. V-145 to V-148.*
Ahsun Murad and Thomas Fuja, Exploiting the residual redundancy in motion estimation vectors to improve the quality of compressed video transmitted over noisy channels, IEEE Jan. 1998, pp. 497-501.
Chang Shih-Fu
Divakaran Ajay
Sun Huifang
Xie Lexing
Brinkman Dirk
Curtin Andrew J.
Mitsubishi Electric Research Laboratories Inc.
Philippe Gims
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