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2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)最新文献

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New soft technologies in international outdoor lighting TALQ interface protocol 国际户外照明TALQ接口协议中的新软技术
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401574
Jin Liang, Nan Quan Pan
It is difficult to combine different outdoor lighting systems to work together without international protocol. TALQ protocol is a newest important international protocol on outdoor lighting control. Most important famous companies are TALQ consortium members including Philiph, GE lighting, Osram etc in the world. The TALQ new technologies apparently become important in outdoor lighting control systems. Some new soft technologies including the events, function and service are important parts in TALQ protocol. This paper introduces these new soft technologies and their application to solve some key problems on outdoor lighting control. Then some cases are illustrated to describe the core technology and application, which is meaningful for the outdoor lighting systems.
如果没有国际协议,很难将不同的户外照明系统组合在一起工作。TALQ协议是国际上最新的重要户外照明控制协议。TALQ联盟成员包括飞利浦、GE照明、欧司朗等。TALQ新技术在室外照明控制系统中显得尤为重要。事件、功能和服务等软技术是TALQ协议的重要组成部分。本文介绍了这些新的软技术及其应用,以解决室外照明控制中的一些关键问题。并通过实例阐述了该系统的核心技术及其应用,对室外照明系统的设计具有一定的指导意义。
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引用次数: 0
Supervised hashing binary code with deep CNN for image retrieval 监督哈希二进制代码与深度CNN图像检索
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401584
Junyi Li, Jian-hua Li
Approximate nearest neighbor search is a good method for large-scale image retrieval. We put forward an effective deep learning framework to generate binary hash codes for fast image retrieval after knowing the recent benefits of convolutional neural networks (CNNs). Our concept is that we can learn binary codes by using a hidden layer to present the latent concepts dominating the class labels when the data labels are usable. CNN also can be used to learn image representations. Other supervised methods require pair-wised inputs for binary code learning. However, our method can be used to learn hash codes and image representations in a point-by-point manner so it is suitable for large-scale datasets. Experimental results show that our method is better than several most advanced hashing algorithms on the CIFAR-10 and MNIST datasets. We will further demonstrate its scalability and efficiency on a large-scale dataset with 1 million clothing images.
近似最近邻搜索是一种很好的大规模图像检索方法。在了解卷积神经网络(cnn)的最新优势后,我们提出了一个有效的深度学习框架来生成二进制哈希码,用于快速图像检索。我们的概念是,当数据标签可用时,我们可以通过使用隐藏层来表示支配类标签的潜在概念来学习二进制代码。CNN也可以用来学习图像表示。其他有监督的方法需要成对输入来学习二进制代码。然而,我们的方法可以用来学习哈希码和图像表示逐点的方式,所以它适用于大规模的数据集。实验结果表明,该方法在CIFAR-10和MNIST数据集上优于几种最先进的哈希算法。我们将在一个拥有100万张服装图像的大规模数据集上进一步展示其可扩展性和效率。
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引用次数: 1
On composition and decomposition of networks 论网络的组成与分解
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401609
Xiaomin Wang, B. Yao, Fei Ma, Xiyang Zhao, Jing Su, Xiangen Chen, Ming Yao
Multiple networks, very often, are the consequences of some single networks under certain mechanism regular patterns, also, the composite networks. We focus on applying the concrete application of graph operation and enumerate the operation method in order to interpret and deal with the formulation of network composition and decomposition. Besides, we, also, mainly presents some network models obtained by the cartesian product operation and the join operation on subnetworks.
多重网络,通常是某些单一网络在特定机制下的结果规律模式,也包括复合网络。重点介绍图运算的具体应用,列举运算方法,以解释和处理网络构成与分解的公式。此外,我们还重点介绍了在子网络上通过笛卡尔积运算和连接运算得到的一些网络模型。
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引用次数: 3
An irregular repeat accumulate coded adaptive amplify-and-forward scheme based on the EESM model 一种基于EESM模型的不规则重复累积编码自适应放大前发方案
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401607
Mingxiang Xie, Xiang Chen, Jing Huang
Cooperative communication is a bright technology to acquire diversity gain in wireless terminals by sharing their antennas. With the fixed amplify-and-forward (AF) mode, relay node always helps to relay the data of the source node with unchanged transmission power. Judging from the power efficiency, it is obviously not optimal, particularly when channel states are quite good. An adaptive AF mode is provided in this paper based on the minus Exponential Effective-Signal to interference and noise ratio (SINR) Mapping (EESM) model, to the user cooperation system with the forward error correcting scheme of irregular repeat and accumulate (IRA) codes. The EESM model forecasts the optimal relay power of SN. The reliability requirement is guaranteed by IRA codes, and the battery power is saved to transmit new data. Both simulation results and theoretical analysis show that the power efficiency of user cooperation system is significantly improved the adaptive AF mode.
协同通信是无线终端通过共享天线获取分集增益的一种新兴技术。中继节点采用固定的AF (amplification - & forward)模式,在传输功率不变的情况下,中继节点总是帮助源节点中继数据。从功率效率来看,它显然不是最优的,特别是当通道状态很好的时候。本文提出了一种基于负指数有效信噪比(SINR)映射(EESM)模型的用户协作系统自适应自动对焦模式,该模式采用不规则重复累加(IRA)码前向纠错方案。EESM模型预测了SN的最优继电器功率。可靠性要求由IRA代码保证,并节省电池电量以传输新数据。仿真结果和理论分析表明,自适应自动对焦模式显著提高了用户协作系统的功率效率。
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引用次数: 0
A high throughput surface plasmon resonance imaging electrochemical system parallel monitoring fifty spots 高通量表面等离子体共振成像电化学系统并行监测50个点
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401561
Lulu Zhang, Xing Chen, D. Cui
This research introduces a homemade high throughput surface plasmon resonance imaging electrochemical system which can detect more than 50 spots simultaneously. The SPRI system was constructed in the Kretschmann configuration and the SPR sensor chip served as the working electrode in the EC module. K3Fe(CN)6 solution were tested by the cyclic voltammetry (CV) method and the SPRI method recording more than 50 spot signals simultaneously. The multiple sensing spots were unanimous due to the ununiformity of incident light and sensor surface. In order to eliminate ununiformity of different spots, glycerol gradient solution was tested, and a calibration and normalization method was applied.
本研究介绍了一种自制的高通量表面等离子体共振成像电化学系统,该系统可同时检测50多个点。SPRI系统采用Kretschmann结构构建,SPR传感器芯片作为EC模块的工作电极。采用循环伏安法(CV)和SPRI法对K3Fe(CN)6溶液进行检测,同时记录50多个点信号。由于入射光和传感器表面的不均匀性,多个传感点是一致的。为了消除不同斑点的不均匀性,对甘油梯度溶液进行了测试,并采用了校准和归一化方法。
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引用次数: 0
ViPS: Visual processing system for medical imaging ViPS:医学影像视觉处理系统
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401470
Tassadaq Hussain, Oscar Palomar, A. Cristal, E. Ayguadé, Amna Haider
Imaging has become an indispensable tool in modern medicine. Various powerful and expensive platforms to study medical imaging applications appear in recent years. In this article, we design and propose a Visual Processing System (ViPS) that processes medical imaging applications efficiently. ViPS provides a user-friendly programming environment and high-performance architecture to perform image analysis, features extraction and object recognition for complex real-time images or videos. The data structure of image or video is described in the program memory using pattern descriptors; ViPS uses specialized 3D memory structure to handle complex images or videos and processes them on microprocessors or application specific hardware accelerators. The proposed system is highly reliable in terms of cost, performance, and power. ViPS based system is implemented and tested on a Xilinx Virtex-7 FPGA VC707 Evaluation Kit. The performance of ViPS is compared with the Intel i7 multi-core, GPU Jetson TK1 Embedded Development Kit with 192 CUDA cores based graphic systems. When compared with the Intel and GPU-based systems, the results show that ViPS performs real-time video reconstruction at 2x and 1.45x of higher frame rate, achieves 14.6x to 4.8x of speedup while executing different image processing applications and 20.3% and 12.6% of speedup for video processing algorithms respectively.
影像已成为现代医学中不可或缺的工具。近年来出现了各种强大而昂贵的医学成像应用研究平台。在本文中,我们设计并提出了一个有效处理医学影像应用的视觉处理系统(ViPS)。ViPS提供了一个用户友好的编程环境和高性能架构,用于执行复杂的实时图像或视频的图像分析、特征提取和对象识别。使用模式描述符在程序存储器中描述图像或视频的数据结构;ViPS使用专门的3D存储结构来处理复杂的图像或视频,并在微处理器或应用程序特定的硬件加速器上处理它们。该系统在成本、性能和功耗方面具有很高的可靠性。基于ViPS的系统在Xilinx Virtex-7 FPGA VC707评估套件上实现并测试。ViPS的性能与Intel i7多核GPU Jetson TK1嵌入式开发套件进行了比较,该套件基于192个CUDA内核的图形系统。结果表明,与基于Intel和gpu的系统相比,ViPS的实时视频重构帧率分别提高了2倍和1.45倍,在执行不同图像处理应用时的加速提高了14.6 ~ 4.8倍,视频处理算法的加速提高了20.3%和12.6%。
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引用次数: 6
The theoretical and experimental analysis of ultrasound contrast agent micro bubbles: The Sonovue 超声造影剂微泡的理论与实验分析:Sonovue
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401521
Shuying Li, Yurong Huang, Yi Cheng, Jinhua Yu, Yuanyuan Wang
Sonovue is a kind of ultrasound contrast agent (UCA) with a stable shell made by lipid, within which is SF6. Due to the specific acoustic characteristics, UCA has been widely used in ultrasound diagnosis and therapy. In some cases, the 2nd harmonic wave of the scattered signal should be strong enough to help form a high quality image. To better utilize the bubbles to get enough intensity of the 2nd harmonic wave of the scattered signal, numerical simulation and corresponding experiments based on the several models proposed before have been analyzed to study the behavior of the bubbles. In this paper, we use the ratio of the second harmonic wave and fundamental wave to evaluate the oscillation of the bubbles. Besides, we have compared different simulation models and designed corresponding platform of phantom study. Finally, we find that the second harmonic wave will get a remarkable growth when the driving pressure is under 150KPa in the simulation or under 200KPa in the experiment.
Sonovue是一种超声造影剂(UCA),由脂质制成稳定的外壳,里面是SF6。由于其独特的声学特性,在超声诊断和治疗中得到了广泛的应用。在某些情况下,散射信号的二次谐波应该足够强,以帮助形成高质量的图像。为了更好地利用气泡获得散射信号中足够强度的二次谐波,本文基于之前提出的几种模型,对气泡的行为进行了数值模拟和相应的实验分析。本文用二次谐波与基波的比值来评价气泡的振荡。并对不同的仿真模型进行了比较,设计了相应的仿真平台。最后,我们发现当仿真中驱动压力在150KPa以下或实验中驱动压力在200KPa以下时,二次谐波会有显著的增长。
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引用次数: 0
Noncontact heart beat signal extraction based on wavelet transform 基于小波变换的非接触心跳信号提取
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401502
Mi He, Yongjian Nian, Bin Liu
Noncontact monitoring of vital signs by continuous wave Doppler radar is a promising technique in the field of health care. This paper proposed an improved heart beat signal extraction method based on wavelet transform for noncontact radar vital signal monitoring. The detection accuracy of heart beat rate by the proposed method was higher than bandpass filtering and empirical mode decomposition (EMD) method (all p<;0.05) and the bandpass filtering method at different distances. Detection accuracy and signal to noise ratio varied inversely to distance. Male subjects in front case and female subjects in back case acquired higher accuracy than other orientations.
利用连续波多普勒雷达进行非接触式生命体征监测是一种很有发展前途的技术。提出了一种改进的基于小波变换的非接触式雷达生命信号提取方法。在不同距离下,该方法对心率的检测精度均高于带通滤波和经验模态分解(EMD)方法(均p<;0.05)和带通滤波方法。检测精度和信噪比与距离成反比。男性被试在前箱和女性被试在后箱获得的定位精度高于其他取向。
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引用次数: 22
A comparison experiment about time interval created by software in PC 在PC机上进行了软件生成时间间隔的对比实验
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401597
Nuo Li, M. Ai, Yanghai Jiang, Tianshu Wei
The accuracy of time interval created by software in PC is crucial for data acquisition system. The inaccuracy can cause the unstable of sampling number and some other problems. Usually we create time interval by the software which is made by programming language in PC. In this paper, we want to compare the accuracy of time interval created by seven methods in PC. In order to calibrate the time interval precisely, first, we use the serial port to create positive pulse; second, use the space of time between two rising edge to represent the time interval created by software; third, use seven methods (sleep function, WM_TIMER message mapping, COleDateTime class, GetTickCount function, multimediatimer, callback function and QueryPerformance-Counter function) to create time interval and measure it by universal counter. In the end, we analyze the experiment data and find that the callback function method based on multimediatimer is suitable for creating time interval for its high accuracy and low CPU occupancy rate.
计算机软件生成的时间间隔的准确性对数据采集系统至关重要。这种误差会引起采样数的不稳定等问题。通常我们用PC机编程语言编写的软件来创建时间间隔。在本文中,我们想比较7种方法在PC上产生的时间间隔的精度。为了精确地校准时间间隔,首先,我们使用串口产生正脉冲;其次,用两个上升沿之间的时间空间表示软件生成的时间间隔;第三,使用7个方法(sleep函数、WM_TIMER消息映射、COleDateTime类、GetTickCount函数、multimediatimer、callback函数和queryperformancecounter函数)创建时间间隔,并通过通用计数器进行测量。最后对实验数据进行了分析,发现基于multimediatimer的回调函数方法具有较高的准确率和较低的CPU占用率,适合于创建时间间隔。
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引用次数: 0
Query recommendation based on irrelevant feedback analysis 基于无关反馈分析的查询推荐
Pub Date : 2015-10-01 DOI: 10.1109/BMEI.2015.7401583
Bo Zhang, Bin Zhang, Shubo Zhang, Chao Ma
Similarity computation among queries is a central step of query recommendation based on click information in search log. In this step, weights of clicked URLs or clicked document terms, which may have a large influence on similarity computation results, are mostly counted based on co-occurrence. However, counting weights based on co-occurrence are unusually disturbed by irrelevant feedbacks in search log, which may decrease the precision of query similarity computation. This paper proposes a method that computes similarity among queries based on "Query - Clicked Sequence" model, which counts weight of clicked document term by density of documents containing this term on clicked sequence, and filters content of irrelevant documents during similarity computation. A series of experiment results show that this method can precisely count the weights of terms, and increase the precision of query similarity computation, accordingly increase the precision of query recommendation.
查询间相似度计算是基于搜索日志中点击信息进行查询推荐的核心步骤。在这一步中,对相似度计算结果影响较大的被点击url或被点击文档词的权重,主要是基于共现来计算。然而,基于共现的权重计算通常会受到搜索日志中不相关反馈的干扰,从而降低查询相似度计算的精度。本文提出了一种基于“查询-点击序列”模型的查询间相似度计算方法,该方法通过在点击序列中包含该词的文档的密度来计算被点击的文档词的权重,并在相似度计算中过滤不相关文档的内容。一系列实验结果表明,该方法能够准确地计算出词的权重,提高了查询相似度计算的精度,从而提高了查询推荐的精度。
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引用次数: 3
期刊
2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)
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