期刊文献+

基于时频融合特征的3D空间手写识别

3D Space Handwriting Recognition Based on Time-frequency Fusion Feature
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摘要 研究基于3D加速度传感器的空间手写识别技术,提出一种基于时频融合特征的分类识别方法。从加速度数据中提取短时能量(STE)特征及低频分量,经快速傅里叶变换后提取频域特征WPD+FFT,将时域特征STE和频域特征WPD+FFT进行特征融合,利用主成分分析法对其降维,采用支持向量机进行分类识别。实验结果表明,该方法能提高空间手写识别系统的识别率。 In the research of space handwriting recognition technology based on 3D accelerometer,a recognition method based on time-frequency fusion feature is proposed.From accelerometer data,it extracts the Short-time Energy(STE) feature.The hybrid feature which combines Wavelet Packet Decomposition with Fast Fourier Transform(WPD+FFT) are extracted,then the above two categories features are fused together and the Principal Component Analysis(PCA) is employed to reduce the dimension of the fusion feature.Supported Vector Machine(SVM) is used in recognition.Experimental results show that the proposed method can improve the performance of 3D space handwriting recognition system.
出处 《计算机工程》 CAS CSCD 2012年第18期15-18,共4页 Computer Engineering
基金 国家科技重大专项基金资助项目(2009ZX01031-001-007)
关键词 3D空间手写识别 短时能量 小波包分解 快速傅里叶变换 特征融合 支持向量机 3D space handwriting recognition; Short-time Energy(STE); Wavelet Packet Decomposition(WPD); Fast Fourier Transform(FFT); feature fusion; Support Vector Machine(SVM)
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参考文献9

  • 1Choi Sung-Do, Lee A S. On-line Handwritten Character Recognition with 3D Accelerometer[C]//Proc. of IEEE International Conf. on Information Acquisition. Weihai, China: [s. n.], 2006.
  • 2He Zhenyu, Jin Lianwen. Gesture Recognition Based on 3D Accelerometer for Cell Phones Interaction[C]//Proc. of IEEE Asia Pacific Conference on Circuits and Systems. [S. l.]: IEEE Press, 2008.
  • 3王志瑞, 闫彩良. 图像特征提取方法的综述[J]. 吉林大学学报: 自然科学版, 2011, 32(5): 41-42.
  • 4董恩清,万东辉,周亚同,蔡毓.基于短时能量和噪声谱自适应估计的语音激活性检测方法[J].模式识别与人工智能,2004,17(2):227-231. 被引量:5
  • 5Li Deqiang, Pedrycz W, Pizzi N J. Fuzzy Wavelet Packet Based Feature Extraction and Its Application to Biomedical Signal Classification[J]. IEEE Trans. on Biomedical Engineering, 2005, 52(6): 1132-1139.
  • 6赵晓雷,王敏.快速傅里叶变换的并行化研究[J].渭南师范学院学报,2011,26(12):27-30. 被引量:2
  • 7Martinez A M, Kak A C. PCA Versus LDA[J]. IEEE Trans. on Pattern Analysis and Machine Intelligence, 2001, 23(2): 228-239.
  • 8Shanthi N, Duraiswamy K. A Novel SVM-based Handwritten Tamil Character Recognition System[J]. Pattern Analysis & Applications, 2010, 13(2): 173-180.
  • 9Chang Chih-Chung, Lin Chih-Jen. LIBSVM: A Library for Support Vector Machines[J]. ACM Trans. on Intelligent Systems and Technology, 2011, 2(3): 21-27.

二级参考文献14

  • 1Brady P T. A Technique for Investigating on-off Patterns of Speech. Bell System Technical, 1965, 44(1): 1-22.
  • 2Gersho A, Paksoy E. An Overview of Variable Rate Speech Coding for Cellular .Networks. In: Proc of the IEEE Conference on Selected on Topics Wireless Communication. Vancouver, Canada, 1992, 172- 175.
  • 3Bullington K, Fraser J M. Engineering Aspects of TASI. Bell Systern Technical, 1959, 38(3) : 353 - 364.
  • 4Rabiner L R, Sambur M R. Voiced-Unvoiced-Silence Detection Using the hakura LPC Distance Measure. In: Proc of the IEEE International Conference on Acoustics, Speech, and Signal Processing. Hartford, CT, USA, 1977, 323-326.
  • 5Yoma N B, Mclnnes F, Jack M. Robust Speech Pulse Detection Using Adaptive Noise Modeling. Electronics Letters, 1996, 32 (15): 1350- 1352.
  • 6Sohn J, Sung W. A Voice Activity Detector Emplying Soft Decision Based Noi~ Spectrum Adaption. Im Proc of the IEEE International Conference on Acoustics, Speech, and Signal Processing.Seattler, WA, USA, 1998, I : 365-368.
  • 7Sohn J, Kim N S, Sung W. A Statistical Model Based Voice Activity Detection. IEEE Signal Processing Letters, 1999, 6(1): 1-3.
  • 8Tanyer S G, Ozer H. Voice Activity Detector in Nonstationary Noise. IEEE Trans on Speech and Audio Processing, 2000, 8(4) :478 - 482.
  • 9Freenmn D K, Cosier G, Southcott C B, Boyd I. The Voice Activity Detector for the Pan-European Digital Cellular Mobile Telephone Service- In: Proc of the International Conference on Acoustics, Speech, and Signal Processing. Glasgow, UK, 1989, 369- 372.
  • 10Sriniva.san K, Gersho A. Voice Activity Detection for Cellular NetWorks. In: Proc of the IEEE Workshop on Speech Coding. Geneva, Switzerland, 1993, 85-86.

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