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2014 International Conference on Medical Biometrics最新文献

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Smartphone Based Body Area Network System 基于智能手机的体域网络系统
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.42
Youqun Shi, Yue Zhang
Body area network is widely used in remote healthcare area. In this paper, smartphone based body area network system (SBBANS) is proposed. SBBANS is constituted by smartphone and multi parameter monitors, using Bluetooth and serial port for data transmission, and provides comprehensive health information. The system is capable of transferring data with healthcare centre servers over 3G/4G/Wlan. A simple real-time lossless electrocardiogram (ECG) compression algorithm is applied before data transfer. To ensure the stability of the transmission in wireless networks, a "transmit-acknowledge-require-retransmit" mechanism is implemented on the application layer of Internet protocol in this study.
体域网络广泛应用于远程医疗领域。本文提出了一种基于智能手机的体域网络系统(SBBANS)。SBBANS由智能手机和多参数监测器组成,采用蓝牙和串口进行数据传输,提供全面的健康信息。该系统能够通过3G/4G/Wlan与医疗保健中心服务器传输数据。在数据传输之前,采用了一种简单的实时无损心电图压缩算法。为了保证无线网络传输的稳定性,本研究在Internet协议的应用层实现了“发送-确认-请求-重传”机制。
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引用次数: 2
DBBoost-Enhancing Imbalanced Classification by a Novel Ensemble Based Technique 基于集成技术的dbboost增强不平衡分类
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.45
Chunkai Zhang, Pengfei Jia
Classification with imbalanced data-sets has become one of the most popular issues in machine learning, since it prevails in various applications. For binary-class problem, the amount of instances from the majority class is significant larger than that from the minority class. Consequently, traditional classifiers achieve a better performance over the majority class, while unsatisfactory predictive accuracy over the minority class. The emergence of ensemble learning provides a possible solution of solving this concern. And there are many recent researches indicate that the combination of Boosting and/or Bagging with pre-processing techniques is an effective way to enhance the classification performance of imbalanced data-sets. Centered on binary-class imbalanced problem, to overcome the drawbacks of state-of-the-art approaches, this paper introduces a novel technique (DBBoost) based on the combination of AdaBoost with an adaptive sampling approach. Through supporting by statistical analysis, experiments show that DBBoost outperforms the state-of-the-art methods based on ensemble.
不平衡数据集的分类已经成为机器学习中最受欢迎的问题之一,因为它在各种应用中都很普遍。对于二元类问题,多数类的实例数量明显大于少数类的实例数量。因此,传统分类器在多数类上实现了更好的性能,而在少数类上实现了不理想的预测精度。集成学习的出现为解决这一问题提供了可能的解决方案。近年来的许多研究表明,将Boosting和Bagging与预处理技术相结合是提高不平衡数据集分类性能的有效途径。针对二类不平衡问题,为了克服现有方法的不足,本文提出了一种基于AdaBoost和自适应采样相结合的新技术(DBBoost)。通过统计分析的支持,实验表明DBBoost优于基于集成的最新方法。
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引用次数: 2
Feature Extraction of Radial Arterial Pulse 桡动脉脉搏特征提取
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.15
Dimin Wang, David Zhang, J. Chan
Radial arterial pulse is an important physiological signal that has been applied in Traditional Chinese Medicine (TCM) for thousands of years. From ancient times, pulse has been recognized as an empirical science and plays a decisive influence on the TCM diagnosis. However it's objective and lack visible database, which blocks the development of TCM. In Recent years, many pulse systems based on various kinds of sensors have been introduced to collect the computerized pulse waveforms. Meanwhile, pulse diagnosis using statistical learning theory is attracting more and more attention. This paper mainly presents the pulse feature extraction algorithm for removing the redundant and irrelevant information. Though many researches on pulse feature have been published, most of them emphasize on a certain aspect and hardly utilize the experience in TCM. We propose an integrated framework of pulse features and introduce the corresponding extraction algorithms. The experiments show that the features are extracted accurately and they performance well in disease diagnosis.
桡动脉脉搏是一种重要的生理信号,几千年来一直被应用在中医中。脉象自古以来就被认为是一门实证科学,在中医诊断中起着举足轻重的作用。但其客观性强,缺乏可视化数据库,阻碍了中医的发展。近年来,人们引入了许多基于各种传感器的脉冲系统来采集计算机控制的脉冲波形。同时,利用统计学习理论进行脉搏诊断也越来越受到重视。本文主要介绍了脉冲特征提取算法,用于去除冗余和不相关信息。虽然对脉象特征的研究已经发表了很多,但大多侧重于某一方面,很少利用中医经验。我们提出了一个脉冲特征的集成框架,并介绍了相应的提取算法。实验结果表明,该方法提取的特征准确,在疾病诊断中具有较好的效果。
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引用次数: 8
The Objectifying System Using for Color Inspection of Traditional Chinese Medicine Based on the Digital Image Technology 基于数字图像技术的中药颜色检测物化系统
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.11
Dongmei Zheng, Wenai Song, Zhendong Dai, Hongmo Wang
This paper report a new system developed for objectifying study of Color inspections of traditional Chinese medicine (CITCM), which is based on the digital image technologies. In this scheme, the entire system includes two parts, which are the hardware and the software. The hardware is an image acquisition device in a standard lighting conditions, which mainly includes a xenon lamp with a Color Temperature of 5500K to act as light source, an integrating sphere which is used for diffusing light and a high resolution CCD camera. The software is used for digital image processing, the procedure is divided into three steps. Firstly the skin/ non-skin classification is performed by utilizing the threshold in chrominance channels of the RGB color space. Secondly, the facial features are localized by employing the image segmentation and coordinates sorting. Finally, the facial special region (SI) corresponding to five internal organs are achieved by utilizing masks designed to take advantage of morphology. Subsequently, the chromaticity is calculated. The system is carried out by taking 100 samples. Experimental results demonstrate that the proposed scheme exhibits better performance for objectifying research of CITCM.
本文报道了一种基于数字图像技术的中药颜色检测物化研究系统。在本方案中,整个系统包括硬件和软件两部分。硬件是标准照明条件下的图像采集设备,主要包括色温为5500K的氙灯作为光源,用于漫射光的积分球和高分辨率CCD相机。该软件用于数字图像处理,程序分为三个步骤。首先利用RGB色彩空间中色度通道的阈值进行皮肤/非皮肤分类;其次,利用图像分割和坐标排序对人脸特征进行定位;最后,利用形态学设计的面具,实现了与五脏相对应的面部特殊区域(SI)。然后,计算色度。该系统通过采集100个样本来实现。实验结果表明,该方法对CITCM的客观化研究具有较好的效果。
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引用次数: 1
Sensor Evaluation in a Breath Analysis System 呼吸分析系统中的传感器评估
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.14
Ke Yan, David Zhang
Breath analysis systems contain arrays of correlated chemical sensors. For such systems, sensor selection is needed. From the process of sensor selection, some insight behind the performance of different sensor arrays can be gotten. Thus, we can know more about the sensors, which could help us with the selection work in turn. In this paper, a breath analysis system for diabetes diagnosis with 16 sensors is described. Based on this system, several methods are proposed to evaluate the importance, unique discriminant information and redundancy of each sensor. They are based on the results of exhaustive sensor selection. These methods are made convenient to observe and draw intuitive conclusions. They are applied to the breath analysis system and some useful discoveries about the sensors in the system are made accordingly.
呼吸分析系统包含相关化学传感器阵列。对于这样的系统,需要选择传感器。从传感器选择的过程中,可以对不同传感器阵列的性能有一些了解。因此,我们可以更多地了解传感器,这反过来可以帮助我们进行选择工作。本文介绍了一种由16个传感器组成的糖尿病呼吸诊断系统。在此系统的基础上,提出了几种评估各传感器重要性、唯一判别信息和冗余度的方法。它们是基于详尽的传感器选择的结果。这些方法便于观察和得出直观的结论。将它们应用到呼吸分析系统中,并对系统中的传感器有了一些有用的发现。
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引用次数: 9
Automatic Segmentation of Sublingual Excrescences in Color Sublingual Images 彩色舌下图像中舌下赘生物的自动分割
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.22
Zifei Yan, Haolun Ding, Naimin Li
Sublingual excrescence is an important diagnostic measurement in tongue diagnosis, which can assist diagnosing a variety of diseases and syndromes. This paper proposes the framework for automatic segmentation of sublingual excrescences in color sublingual images. Simply initialized Grab Cut based on the visual saliency is firstly applied to segment out the dorsum of tongue where sublingual excrescence located on. And then, a stepwise method for segmenting the sublingual excrescence is proposed. There into, we use the over-detection of the light-reflecting regions especially designed for the sublingual images with sublingual excrescences to eliminate the interference of regions with high brightness. Multi-threshold Otsu method is then applied to coarsely segment the image of the dorsum of tongue, and obtain the candidate excrescence regions. Finally, the fact that the protuberance of sublingual excrescence always produces shadows in its neighborhood help extract the final contour of sublingual excrescences.
舌下赘肉是舌诊中一项重要的诊断指标,可辅助诊断多种疾病和证候。提出了彩色舌下图像中舌下赘生物的自动分割框架。首先基于视觉显著性进行简单初始化的Grab Cut,分割出舌下赘肉所在的舌背;在此基础上,提出了一种逐步分割舌下赘肉的方法。其中,我们采用了针对舌下赘生物图像设计的光反射区域的过检,消除了高亮度区域的干扰。然后应用多阈值Otsu方法对舌背图像进行粗分割,得到候选赘肉区域。最后,由于舌下赘肉的突起在其周围总是产生阴影,这有助于提取舌下赘肉的最终轮廓。
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引用次数: 0
Image Processing Technology in the Palm Diagnosis in Traditional Chinese Medicine 图像处理技术在中医掌纹诊断中的应用
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.24
M. Fang, Zhi Liu, Hongjun Wang
In recent years, palm print identification technology has been widely carried out and used in fields such as identity recognition. At the same time, some features of palm vividly reveal information about diseases and health condition of the human body. We can research the application of palm diagnosis in traditional Chinese medicine with the help of digital image processing technology. In the palm diagnosis, palm print features and color features of visceral reflex regions are very important pathological features. Specific palm prints and color change of different reflex regions indicate different diseases. We want to take advantage of digital image processing technology to process palm images, in order to locate and segment the visceral reflex regions and extract certain palm print and color information, helping herbalist doctors diagnose diseases with palm diagnosis theory. This dissertation mainly focuses on approaches and methods of palm image pre-processing, prepared for further research and achieved certain results. The main work we have done is summarized as follows: Research on image acquisition conditions, median filtering, image binaryzation, binary image optimization, palm extraction, palm edge extraction and corner detection.
近年来,掌纹识别技术在身份识别等领域得到了广泛的开展和应用。同时,手掌的一些特征生动地揭示了人体疾病和健康状况的信息。我们可以借助数字图像处理技术研究掌纹诊断在中医中的应用。在掌纹诊断中,掌纹特征和内脏反射区颜色特征是非常重要的病理特征。不同反射区的特定掌纹和颜色变化表明不同的疾病。我们想利用数字图像处理技术对掌纹图像进行处理,对内脏反射区域进行定位和分割,提取一定的掌纹和颜色信息,利用掌纹诊断理论帮助中医师诊断疾病。本文主要对掌纹图像预处理的途径和方法进行了研究,为进一步的研究做了准备,并取得了一定的成果。我们所做的主要工作总结如下:图像采集条件、中值滤波、图像二值化、二值图像优化、掌纹提取、掌纹边缘提取和角点检测等方面的研究。
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引用次数: 0
Wrist Pulse Diagnosis Using Complex Network 基于复杂网络的腕部脉搏诊断
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.10
Peng Wang, Shanpeng Hou, Hongzhi Zhang, W. Zuo, David Zhang
Pulse signal contains important information about health status and pulse diagnosis has been extensively applied in oriental medicine. In recent years more and more research interests have been given on computerized pulse diagnosis. Pulse feature extraction plays an important role in computerized pulse diagnosis. The most popular pulse feature extraction methods can be grouped into two categories, i.e. time domain feature extraction method and frequency domain feature extraction method. The pulse signal is a pseudo periodic signal while the common feature extraction methods usually assume it is a periodic signal and only a typical period or an averaged period was used in the feature extraction, while the difference between periods was less emphasized. In this paper we use complex network to transform the pulse signal from time domain to network domain and use the statistics parameters which describe the organization of the complex network as the features to characterize the difference between pulse periods. The experiment shows that the complex network features are useful in characterizing the relationship between different pulse periods the diagnosis performance on diabetes are similar with the multi scale sample entropy. By combining complex network features with sample entropy features, higher diagnosis performance can be further obtained.
脉象信号是人体健康状况的重要信息,在东方医学中有着广泛的应用。近年来,计算机脉搏诊断越来越受到人们的关注。脉冲特征提取在计算机脉搏诊断中起着重要的作用。目前最流行的脉冲特征提取方法可分为两大类,即时域特征提取方法和频域特征提取方法。脉冲信号是一个伪周期信号,而常用的特征提取方法通常假设脉冲信号是一个周期信号,只使用典型周期或平均周期进行特征提取,而不太强调周期之间的差异。本文利用复杂网络将脉冲信号从时域变换到网络域,并利用描述复杂网络组织的统计参数作为表征脉冲周期差的特征。实验表明,复杂网络特征在表征不同脉冲周期之间的关系方面是有用的,对糖尿病的诊断效果与多尺度样本熵相似。通过将复杂网络特征与样本熵特征相结合,可以获得更高的诊断性能。
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引用次数: 6
Ventricular Fibrillation Detection by an Improved Time Domain Algorithm Combined with SVM 结合支持向量机的改进时域算法检测心室颤动
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.39
Zhongjie Hou, Yue Zhang
Correct detection of ventricular fibrillation (VF) is of great importance to real-time electrocardiogram (ECG) monitoring systems and automatic external defibrillator (AED). First, the paper gives a brief review of threshold crossing sample count algorithm (TCSC), and analyzes this algorithm's drawbacks. Then the authors present an improved algorithm combined TCSC with support vector machine (SVM), which is more accuracy than the TCSC algorithm. For assessment of the performance of the algorithm, the complete CU database and MIT-BIH database are used. The authors compare the new algorithm with other VF detection methods under the same conditions. The ROC curve is created and the AUC is also calculated. The results show that the proposed algorithm has a high Accuracy of 91.2%, Specificity of 96.8%, and the AUC is 92.5. The new algorithm is fast, accurate and reliable, showing strong potential to be applied in real-time ECG monitor system.
正确检测心室颤动(VF)对实时心电图(ECG)监测系统和自动体外除颤器(AED)具有重要意义。本文首先对阈值交叉样本计数算法(TCSC)进行了综述,并分析了该算法存在的缺陷。在此基础上,提出了一种将TCSC与支持向量机(SVM)相结合的改进算法,该算法比TCSC算法具有更高的准确率。为了评估算法的性能,使用了完整的CU数据库和MIT-BIH数据库。在相同条件下,将新算法与其他VF检测方法进行了比较。创建ROC曲线,并计算AUC。结果表明,该算法的准确率为91.2%,特异性为96.8%,AUC为92.5。该算法快速、准确、可靠,在实时心电监护系统中具有较强的应用潜力。
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引用次数: 0
Human Emotion Classification from EEG Signals Using Multiwavelet Transform 基于多小波变换的脑电信号情感分类
Pub Date : 2014-06-30 DOI: 10.1109/ICMB.2014.29
V. Bajaj, R. B. Pachori
In this paper, we propose new features based on multiwavelet transform for classification of human emotions from electroencephalogram (EEG) signals. The EEG signal measures electrical activity of the brain, which contains lot of information related to emotional states. The sub-signals obtained by multiwavelet decomposition of EEG signals are plotted in a 3-D phase space diagram using phase space reconstruction (PSR). The mean and standard deviation of Euclidian distances are computed from 3-D phase space diagram. These features have been used as input features set for multiclass least squares support vector machines (MC-LS-SVM) together with the radial basis function (RBF), Mexican hat wavelet and Morlet wavelet kernel functions for classification of emotions. The proposed features based on multiwavelet transform of EEG signals with Morlet wavelet kernel function of MC-LS-SVM have provided better classification accuracy for classification of emotions.
在本文中,我们提出了基于多小波变换的新特征,用于从脑电图信号中分类人类情绪。脑电图信号测量大脑的电活动,其中包含大量与情绪状态有关的信息。对脑电信号进行多小波分解得到的子信号,利用相空间重构(PSR)将子信号绘制成三维相空间图。从三维相空间图中计算欧几里得距离的均值和标准差。将这些特征与径向基函数(RBF)、Mexican hat小波和Morlet小波核函数一起作为多类最小二乘支持向量机(MC-LS-SVM)的输入特征集进行情绪分类。提出的基于MC-LS-SVM的Morlet小波核函数对脑电信号进行多小波变换的特征,为情绪分类提供了更好的分类精度。
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引用次数: 43
期刊
2014 International Conference on Medical Biometrics
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