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Noise Robust Automatic Speech Recognition Scheme with Histogram of Oriented Gradient Features
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  • Noise Robust Automatic Speech Recognition Scheme with Histogram of Oriented Gradient Features
  • Noise Robust Automatic Speech Recognition Scheme with Histogram of Oriented Gradient Features
저자명
Park. Taejin,Beack. SeungKwan,Lee. Taejin
간행물명
IEIE Transactions on Smart Processing and Computing
권/호정보
2014년|3권 5호|pp.259-266 (8 pages)
발행정보
대한전자공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

In this paper, we propose a novel technique for noise robust automatic speech recognition (ASR). The development of ASR techniques has made it possible to recognize isolated words with a near perfect word recognition rate. However, in a highly noisy environment, a distinct mismatch between the trained speech and the test data results in a significantly degraded word recognition rate (WRA). Unlike conventional ASR systems employing Mel-frequency cepstral coefficients (MFCCs) and a hidden Markov model (HMM), this study employ histogram of oriented gradient (HOG) features and a Support Vector Machine (SVM) to ASR tasks to overcome this problem. Our proposed ASR system is less vulnerable to external interference noise, and achieves a higher WRA compared to a conventional ASR system equipped with MFCCs and an HMM. The performance of our proposed ASR system was evaluated using a phonetically balanced word (PBW) set mixed with artificially added noise.