KR970071462A - Method for rejecting recognition result in speech recognition system - Google Patents
Method for rejecting recognition result in speech recognition system Download PDFInfo
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- KR970071462A KR970071462A KR1019960011283A KR19960011283A KR970071462A KR 970071462 A KR970071462 A KR 970071462A KR 1019960011283 A KR1019960011283 A KR 1019960011283A KR 19960011283 A KR19960011283 A KR 19960011283A KR 970071462 A KR970071462 A KR 970071462A
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Abstract
본 발명은 음성 인식에 관한 것으로서, 특히 외부의 잡음 등을 음성으로 인식하는 것을 방지하기 위한 음성 인식 시스템에서의 인식 결과 거부 방법에 관한 것이다.The present invention relates to speech recognition, and more particularly, to a recognition result rejection method in a speech recognition system for preventing external noise from being recognized as speech.
각 단어에 대한 표준 패턴과 입력 패턴과의 정규화된 거리 계산 후 최단 거리의 단어의 표준 패턴을 찾아내는 표준 패턴과의 최단 거리의 표준 패턴 추출 과정, 상기 추출된 최단 표준 패턴과 입력 패턴과의 제1규정화 거리를 소정의 상수와 비교하여 소정의 상수C1보다 클 경우에 인식을 거부하는 제1비교 과정, 상기 제1정규화 거리[D(Y,Xmin)], 상기 제1정규화 거리에서 추출된 최단 거리의 표준 단어를 제외하고 다음으로 가까운 표준 단어 패턴과 입력 단어 패턴과의 제2정규화 거리[D(Y,Xmin2)] 및 최단 표준 단어와 제2의 최단 표준 단어의 제3정규화 거리[D(Xmin,Xmin2)]를 이용한 표준 함수와 제1정규화 거리와 소정의 설정된 상수를 이용한 거부 판단 함수를 비교하여, 음성 입력의 인식을 여부를 결정하는 제2비교 과정, 및 상기 제1,2의 비교 과정의 결과를 이용하여 입력 단어의 거부 판단을 하지 않는 경우에만 이를 인식하여 잘못된 입력으로부터 인식의 거부를 통한 오동작을 방지시키는 결과 채택 과정을 포함하는 것을 특징으로 한다.A standard pattern extraction process of a shortest distance between a standard pattern for each word and a standard pattern for finding a standard pattern of a word having the shortest distance after calculation of the normalized distance from the input pattern, A first normalization distance [D (Y, Xmin)] extracted from the first normalized distance, and a second normalized distance [D D (Y, Xmin2)] between the next closest standard word pattern and the input word pattern, and the third normalized distance [D (Y, Xmin2) of the shortest standard word and the second shortest standard word, Xmin, Xmin2)], a second normalization distance and a rejection determination function using a predetermined constant to determine whether speech input is recognized, and a second comparison step of comparing the first and second normalization distances Using the results of the process And recognizing the rejection of the input word only when the rejection of the input word is not performed, thereby preventing the erroneous operation by rejecting the recognition from the erroneous input.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명인 음성 인식 시스템에서의 인식 결과 거부 방법의 흐름도.FIG. 1 is a flowchart of a recognition result rejection method in a speech recognition system according to the present invention. FIG.
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KR1019960011283A KR970071462A (en) | 1996-04-15 | 1996-04-15 | Method for rejecting recognition result in speech recognition system |
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KR1019960011283A KR970071462A (en) | 1996-04-15 | 1996-04-15 | Method for rejecting recognition result in speech recognition system |
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KR970071462A true KR970071462A (en) | 1997-11-07 |
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KR1019960011283A KR970071462A (en) | 1996-04-15 | 1996-04-15 | Method for rejecting recognition result in speech recognition system |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920001430A (en) * | 1990-06-25 | 1992-01-30 | 정용문 | Voice data end point detection method and apparatus |
JPH05210397A (en) * | 1992-01-30 | 1993-08-20 | Fujitsu Ltd | Voice recognizing device |
JPH0643895A (en) * | 1992-07-22 | 1994-02-18 | Nec Corp | Device for recognizing voice |
KR970050114A (en) * | 1995-12-22 | 1997-07-29 | 양승택 | Keyword detection method using similarity between keywords |
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1996
- 1996-04-15 KR KR1019960011283A patent/KR970071462A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920001430A (en) * | 1990-06-25 | 1992-01-30 | 정용문 | Voice data end point detection method and apparatus |
JPH05210397A (en) * | 1992-01-30 | 1993-08-20 | Fujitsu Ltd | Voice recognizing device |
JPH0643895A (en) * | 1992-07-22 | 1994-02-18 | Nec Corp | Device for recognizing voice |
KR970050114A (en) * | 1995-12-22 | 1997-07-29 | 양승택 | Keyword detection method using similarity between keywords |
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