计算机与现代化

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基于惩罚系数的人脸和声音融合识别方法

  

  1. (1.西安科技大学电气与控制工程学院,陕西西安710054;2.陕西师范大学计算机科学学院,陕西西安710062)
  • 收稿日期:2015-06-10 出版日期:2015-11-12 发布日期:2015-11-16
  • 作者简介:温苗利(1978-),女,河南洛阳人,西安科技大学电气与控制工程学院讲师,博士,研究方向:模式识别,图像处理,生物特征识别。

Face and Speech Recognition Fusion Method Based on Penalty Coefficient

  1. (1. School of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi'an 710054, China;
    2. School of Computer Science, Shaanxi Normal University, Xi’an 710062, China)
  • Received:2015-06-10 Online:2015-11-12 Published:2015-11-16

摘要: 不同的生物特征采集装置采集的样本品质各不相同,样本品质高的识别可靠性较高,同时对于同一个样本,采用不同的识别方法,好的识别方法识别可靠性也较高,因而本文提出一种利用生物特征的样本品质和识别专家可靠性的融合识别(QSVM)方法。首先根据样本品质和识别专家可靠性得到样本惩罚系数和可靠性惩罚系数,进而得到总体惩罚系数,最后利用总体惩罚系数对支持向量机识别算法进行修改。本文采用XM2VTS数据库,分别将QSVM方法与贝叶斯分类法、Fisher线性判别函数分类法、多层感知器分类法和平均融合方法、SVM方法的半和误差率(HTER)进行比较,实验结果表明QSVM方法的半和误差率较小。

关键词: 多生物特征识别, 人脸识别, 声音识别, 惩罚系数, 支持向量机

Abstract: The quality of biometric sample acquired from different acquisition devices is higher, then the reliability of recognition is higher. For the same biometric sample, recognition method is better, then the reliability of recognition is higher. So this paper proposes a multi-biometric recognition algorithm using biometric sample quality and recognition expert reliability (QSVM). First, the method obtains the sample penalty coefficient and reliability penalty coefficients from the sample quality and the expert reliability, then deduces the overall penalty coefficient, finally, uses the overall penalty coefficient to modify SVM fusion recognition algorithm. The experiment uses the XM2VTS database. We compares the Half Total Error Rate (HTER) of QSVM, Bayesian, Fisher linear discriminant, multi-layer perceptron, mean methods and SVM, the experimental results show that the HTER of QSVM fusion algorithm is lower.

Key words: multi-modal biometric recognition, face recognition, speech recognition, penalty coefficient, SVM

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