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2009 International Multimedia, Signal Processing and Communication Technologies最新文献

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Bluetooth based implementations for realising new consumer systems 基于蓝牙的新消费系统实现
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164222
M. S. Beg, Binish Fatimah, Shashank Jain, R. Muzammil
Bluetooth based new wireless applications can increase comfort and security by automation of the tasks earlier controlled manually. In this paper advantages of low cost, low power and robustness of Bluetooth have been exploited to propose and implement two new consumer systems in the form of a garage door opening system and an electronic attendance record system. Both the applications provide luxury of automation along with promise of a better security system and will thus be a step towards realization of a smart building environment. Bluetooth based garage door opening system helps to overcome the inconvenience to move out of the car for unlocking the door and it provides the luxury of keyless opening which is electronically controlled just by enabling the authenticated Bluetooth slave device. The other Bluetooth based application proposed and implemented in this work relates to automatic monitoring and recording of attendance of employees in an organization. Both the applications proposed and implemented in this paper offer better security, higher flexibility and lesser complexity. In this paper the applications are developed based on Bluetooth Link using Host Controller Interface and Asynchronous Connection Less (ACL) link.
基于蓝牙的新无线应用程序可以通过自动化以前手动控制的任务来提高舒适性和安全性。本文利用蓝牙低成本、低功耗和鲁棒性的优点,提出并实现了车库开门系统和电子考勤系统两种新型消费系统。这两种应用都提供了自动化的奢侈品,并承诺提供更好的安全系统,因此将朝着实现智能建筑环境迈出一步。基于蓝牙的车库开门系统,克服了下车开门的不便,提供了只需启用经过认证的蓝牙从设备即可实现电子控制的无钥匙开门的奢侈。在这项工作中提出并实现的另一个基于蓝牙的应用程序涉及组织中员工出勤的自动监控和记录。本文提出和实现的应用程序都具有更好的安全性、更高的灵活性和更低的复杂性。本文采用主机控制器接口和异步连接少(ACL)链路,开发了基于蓝牙链路的应用程序。
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引用次数: 4
Experimental use of electronic nose for analysis of volatile organic compound (VOC) 实验应用电子鼻分析挥发性有机化合物(VOC)
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164187
S. Saeed, Zia Abbas, Balamurugan A. Gopal
An electronic nose is an instrument intended to mimic the human sense of smell. Electronic noses (e-nose) employ an array of chemical gas sensors, a sample handling system and a pattern recognition system. Pattern recognition provides a higher degree of selectivity and reversibility to the system leading to an extensive range of applications. These ranges from the food and medical industries to environmental monitoring and process control. Many other types of different gas sensors available. These include conducting polymers (CP), metal oxide semiconductors (MOS), piezoelectric, optical fluorescence, quartz crystal microbalance (QCM) and Amperometric gas sensors. The ideal gas sensor would exhibit reliability, robustness, sensitivity, selectivity and reversibility. High selectivity with high reversibility is difficult to attain. After signal processing and feature extraction the output of the sensors provide a unique “smellprint” for that substances which can be used to classify, measure concentration, or verify quality. The present paper illustrates the function of electronic nose, its application and investigates the effective use of e-nose in detecting gases that have some smell developed by the volatile organic compounds (VOC) like ethanol, acetone and benzene at different concentrations. The response and characteristics prove that the Electronic nose is a reliable instrument which can be used for environment control (air quality, pollutants, and gas emission levels), medical science (urine, skin and breath odour etc.), food industry (coffee, milk, soft drink fish, meat etc.), pharmaceutics, chemical industry, Defence and security industries (detecting humanitarian land mines etc.) and semiconductor industrial processes.
电子鼻是一种用来模仿人类嗅觉的仪器。电子鼻采用一组化学气体传感器、一个样品处理系统和一个模式识别系统。模式识别为系统提供了更高程度的选择性和可逆性,具有广泛的应用范围。这些范围从食品和医疗行业到环境监测和过程控制。许多其他类型的不同的气体传感器可用。这些包括导电聚合物(CP),金属氧化物半导体(MOS),压电,光学荧光,石英晶体微天平(QCM)和安培气体传感器。理想的气体传感器应具有可靠性、鲁棒性、灵敏度、选择性和可逆性。高选择性和高可逆性是很难达到的。经过信号处理和特征提取,传感器的输出为该物质提供了独特的“气味”,可用于分类,测量浓度或验证质量。本文阐述了电子鼻的功能及其应用,探讨了电子鼻在检测不同浓度的乙醇、丙酮、苯等挥发性有机化合物(VOC)产生的气味时的有效性。响应和特性证明电子鼻是一种可靠的仪器,可用于环境控制(空气质量,污染物和气体排放水平),医学(尿液,皮肤和呼吸气味等),食品工业(咖啡,牛奶,软饮料,鱼,肉等),制药,化学工业,国防和安全工业(探测人道主义地雷等)和半导体工业过程。
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引用次数: 16
A 2D analytical model of the channel potential and threshold voltage of Double-Gate (DG) MOSFETs with vertical Gaussian doping profile 垂直高斯掺杂双栅mosfet通道电位和阈值电压的二维解析模型
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164172
P. Tiwari, Surendra Kumar, S. Mittal, Vaibhav Srivastava, Utkarsh Pandey, S. Jit
The paper presents a 2D analytical model for the potential function and threshold voltage of symmetric Double-Gate (DG) MOSFETs with vertical Gaussian doping profile in the channel.
本文建立了沟道中垂直高斯掺杂的对称双栅mosfet的势函数和阈值电压的二维解析模型。
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引用次数: 43
Error resilient technique for SPIHT coded color images SPIHT编码彩色图像的误差复原技术
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164219
Mohd Ayyub Khan, E. Khan
The Set Partitioning in Hierarchical Trees (SPIHT) based color image coder, commonly referred as Color SPIHT (CSPIHT) are developed to quantize and encode wavelet coefficients and have excellent rate distortion characteristic in the noise free environments. However in presence of noise they are extremely sensitive to the bit errors. It was observed that bits have different degree of vulnerability of errors. The error in some of the bits (critical bits) causes the severe degradation while errors in other bits (non-critical bits) have negligible effect in the reconstructed images. In this paper, we propose an unequal error protection (UEP) scheme, in which within each bits plane, the bits are reorganized according to their sensitivity of errors and then critical bits are protected unequally using Rate Compatible Puncturing Convolutional (RCPC) codes. The protection is reduced for higher bit-planes, by changing the puncturing rate. The simulation results show an improvement of 5–15 dB in the quality of reproduced images, as compared to the equal error protection (EEP) and unprotected CSPIHT bit-stream.
基于分层树集分割(Set Partitioning in Hierarchical Trees,简称spieht)的彩色图像编码器,通常称为CSPIHT (color SPIHT,简称CSPIHT),用于对小波系数进行量化编码,在无噪声环境下具有良好的率失真特性。然而,在噪声存在的情况下,它们对误码极为敏感。结果表明,比特具有不同程度的易出错性。某些比特(关键比特)的误差会导致严重的退化,而其他比特(非关键比特)的误差对重构图像的影响可以忽略不计。本文提出了一种不等错保护(UEP)方案,该方案在每个比特平面内,根据比特对错误的敏感性对比特进行重组,然后使用速率兼容刺破卷积(RCPC)码对关键比特进行不等错保护。通过改变穿刺率,对更高位平面的保护降低了。仿真结果表明,与等错误保护(EEP)和不受保护的CSPIHT比特流相比,再现图像的质量提高了5-15 dB。
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引用次数: 10
Effect of topological and traffic variations on quality of service using RSVP/ns 拓扑和流量变化对RSVP/ns服务质量的影响
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164216
Navneet, T. C. Aseri, A. Abbas
Provision of quality of service (QoS) in todays Internet is an area that attracts the current state-of-the-art research. In this paper, we study the effect of topological and traffic variations on the provision of QoS using RSVP/ns. In our performance evaluation, we focus on the effect of varying packet size, number of flows, and mixing of best-effort flows with RSVP flows on the bandwidth reservations.
在当今的互联网中,服务质量(QoS)的提供是当前研究的热点。在本文中,我们研究了拓扑和流量变化对使用RSVP/ns提供QoS的影响。在我们的性能评估中,我们重点关注不同数据包大小、流数量以及尽力而为流与RSVP流混合对带宽保留的影响。
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引用次数: 0
Wavelet based partial image encryption 基于小波的局部图像加密
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164167
Nahla A. Flayh, R. Parveen, S. Ahson
In this paper new partial encryption schemes are present, in which a secure encryption algorithm is used to encrypt only part of the images. Only part of the original data is encrypted for two different grayscale images and two color images of size (256 × 256) pixels, resulting in a significant reduction in encryption and decryption time.
本文提出了一种新的部分加密方案,其中使用安全加密算法对部分图像进行加密。对于大小为(256 × 256)像素的两幅不同灰度图像和两幅彩色图像,只对部分原始数据进行加密,从而大大缩短了加密和解密时间。
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引用次数: 20
Shot boundary detection using texture feature based on co-occurrence matrices 基于共现矩阵的纹理特征镜头边界检测
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164201
Brojeshwar Bhowmick, Debaleena Chattopadhyay
Content based video indexing and retrieval traces back to the elementary video structures, such as a table of contents. Thus, algorithms for video partitioning have become crucial with the unremitting growth in the prevalent digital video technology. This demands for a tool which would break down the video into smaller and manageable units called shots. In this paper, a shot boundary detection technique has been proposed for abrupt scene cuts. The method computes cooccurrence matrices by taking block differences between the consecutive frames in each of R, G, and B plane, using sum of absolute differences (SAD). Feature vectors are extracted from the co-occurrence matrices' statistics, defined at various pixel displacement distances. The statistical find-outs are integrated into a training set and an unsupervised classifier, K-means, is used to identify the shot-frames and the non-shot frames.
基于内容的视频索引和检索可以追溯到基本的视频结构,如目录。因此,随着数字视频技术的不断发展,视频分割算法变得至关重要。这就需要一种工具将视频分解成更小的、可管理的单元,称为镜头。本文提出了一种针对场景突然剪切的镜头边界检测技术。该方法采用绝对差和(sum of absolute difference, SAD)的方法,取R、G、B各平面连续帧之间的块差来计算共发生矩阵。特征向量是从共现矩阵的统计量中提取的,这些统计量在不同的像素位移距离上定义。统计结果被整合到训练集中,并使用无监督分类器K-means来识别投篮帧和非投篮帧。
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引用次数: 3
Load balancing issues in automotives 汽车中的负载平衡问题
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164194
Rajeshwari Hegde, K. Gurumurthy
Electronic Control Units (ECUs) are widely used to improve the comfort and reliability of vehicles. It has become the fundamental building block of any automotive subsystem and is interfaced with electro mechanics counterpart. To meet the system wide requirements, these ECUs are interconnected using the communication infrastructure. Although the communication infrastructure in terms of, predominantly, the CAN based vehicle network took its birth to enable ECUs to work in a coordinated manner in order to support system wide requirements, during the past decade, this infrastructure was also viewed as a potential means to incorporate extensibility in terms of addition of newer ECUs which are built for implementing additional requirements. With this paradigm, the number of ECUs started growing in a steep manner, uncontrolled and as a result, today, it is not hard to see a high segment automotive housing ECUs as large as 75–80. Hence, load balancing mechanisms are needed to ease ECU integration and for efficient utilization of CPU power in ECUs. In this paper, we explain the concept of load balancing on the basis of CPU utilization across ECUs.
电子控制单元(ecu)被广泛用于提高车辆的舒适性和可靠性。它已成为任何汽车子系统的基本构建块,并与电子机械对应物接口。为了满足整个系统的需求,这些ecu使用通信基础设施相互连接。虽然通信基础设施主要是基于CAN的车辆网络,其诞生是为了使ecu能够以协调的方式工作,以支持系统范围的需求,但在过去的十年中,这种基础设施也被视为一种潜在的手段,可以通过添加新的ecu来实现额外的需求。在这种模式下,ecu的数量开始以陡峭的方式增长,不受控制,因此,今天,不难看到高分段汽车外壳ecu高达75-80。因此,需要负载平衡机制来简化ECU集成并有效利用ECU中的CPU功率。在本文中,我们在跨ecu的CPU利用率的基础上解释负载平衡的概念。
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引用次数: 1
Shape based classification of breast tumors using fractal analysis 基于形状的乳腺肿瘤分形分类
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164228
Syed Abdaheer, E. Khan
In this paper we adopt FFT based fractal analysis method. With the help FFT based method breast tumors (benign and malignant) are classified based on their shapes. In general malignant tumors contour have rough and irregular shapes whereas benign contour have smooth and macrolobulated shapes. In this paper we present a fractal based Fourier transform method to classify the contours. The log -log magnitude frequency response plot and rose plot (for average radial distance and angle variations in terms of average slops and slope of intercept) are used in this study in order to extract the features for classifications.
本文采用基于FFT的分形分析方法。在基于FFT的方法的帮助下,乳腺肿瘤(良性和恶性)根据其形状进行分类。一般来说,恶性肿瘤轮廓粗糙不规则,而良性肿瘤轮廓光滑,呈大分叶状。本文提出了一种基于分形的傅里叶变换方法来对轮廓进行分类。为了提取用于分类的特征,本研究使用了对数-对数量级频率响应图和玫瑰图(根据平均斜率和截距斜率表示平均径向距离和角度变化)。
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引用次数: 7
Analysis of power saving multicasting routing applications for Mica2 motes-an event based MATLAB implementation Mica2 mots省电组播路由应用分析——基于事件的MATLAB实现
Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164186
P. Gaur, B. Dhaliwal, Ameeta Seehra
The adhoc networks are considered to be infrastructure less networks therefore the scarcity of resources (i.e. Bandwidth and Energy) are the main issues requiring attention. In this paper the routing applications/algorithms for optimizing battery life time are analyzed while taking into account the highly unreliable real time behavior of mica2 motes. Routing applications are run in Matlab based probabilistic event driven platform having layered architecture for power centric radio model. Although the adhoc networks have dynamic topology and are randomly placed in specified environments, radio motes are placed in a twodimentional virtual grid for simulating the flow of packet information in a multicasting source-destination domain. Power Efficient Wireless Adhoc Networks have their applications in military (spying, battlefield surveillance), environmental (forest fire and flood detection, seismic structure response and bio-complexity), health (drug administration in hospitals) set ups.
自组织网络被认为是基础设施较少的网络,因此资源(即带宽和能源)的稀缺性是需要注意的主要问题。本文分析了优化电池寿命的路由应用/算法,同时考虑了mica2 motes的高度不可靠的实时行为。路由应用程序在基于Matlab的概率事件驱动平台上运行,该平台具有分层结构的功率中心无线电模型。虽然自组织网络具有动态拓扑结构,并且随机放置在指定的环境中,但无线电记录被放置在二维虚拟网格中,用于模拟多播源-目的域中的分组信息流。高效无线自组织网络在军事(间谍,战场监视),环境(森林火灾和洪水探测,地震结构响应和生物复杂性),健康(医院药物管理)设置中有其应用。
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引用次数: 0
期刊
2009 International Multimedia, Signal Processing and Communication Technologies
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