Image analysis – Pattern recognition
Patent
1995-11-27
1997-04-01
Boudreau, Leo
Image analysis
Pattern recognition
382159, 382225, 395 253, 395 265, G06K 900
Patent
active
056174861
ABSTRACT:
A pattern recognition system which continuously adapts reference patterns to more effectively recognize input data from a given source. The input data is converted to a set or series of observed vectors and is compared to a set of Markov Models. The closest matching Model is determined and is recognized as being the input data. Reference vectors which are associated with the selected Model are compared to the observed vectors and updated ("adapted") to better represent or match the observed vectors. This updating method retains the value of these observed vectors in a set of accumulation vectors in order to base future adaptations on a broader data set. When updating, the system also may factor in the values corresponding to neighboring reference vectors that are acoustically similar if the data set from the single reference vector is insufficient for an accurate calculation. Every reference vector is updated after every input; thus reference vectors neighboring an updated reference vector may also be updated. The updated reference vectors are then stored by the computer system for use in recognizing subsequent inputs.
REFERENCES:
patent: 4495644 (1985-01-01), Parks et al.
patent: 4724542 (1988-02-01), Williford
patent: 5050215 (1991-09-01), Nishimura
patent: 5127055 (1992-06-01), Larkey
patent: 5222146 (1993-06-01), Bahl et al.
T.H. Applebaum et al., "Enchancing the Discrimination of Speaker Independent Hidden Markov Models with Corrective Training", ICASSP' 89, 23 May 1989, GLASGOW pp. 302-305.
N.J. Anthony et al. "Supervised Adapatation for Signature Verification System, " IBM Technical Disclosure Bulletin, vol. 21, No. 1, Jun. 1978, pp. 424-425.
Pao-Chung Chang et al., "Discrimative Training of Dynamic Programming Based Speech Recognizers", No. 2, Apr. 1993, New York, pp. 135-143.
Chow Yen-Lu
deSouza Peter V.
Fineberg Adam B.
Hon Hsiao-Wuen
Apple Computer Inc.
Boudreau Leo
Tran Phuoc
LandOfFree
Continuous reference adaptation in a pattern recognition system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous reference adaptation in a pattern recognition system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous reference adaptation in a pattern recognition system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-546155