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2012 International Conference on Communication, Information & Computing Technology (ICCICT)最新文献

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Hardware software co-design using profiling and clustering 使用概要分析和集群的硬件软件协同设计
A. Mishra, K. Garg, Abhijit R. Asati, Kota Solomon Raju
The digital system design process can be accelerated by concurrent design of hardware and software. This process requires the migration of functions that are computational extensive to hardware. This paper presents a framework for identifying such functions by proposing an algorithm. The framework uses the time profiling and clustering technique to achieve the objectives. Open source spark compiler has been used to convert functions to hardware description language The final interfacing has been done in embedded development kit.
通过硬件和软件的并行设计,可以加快数字系统的设计进程。这个过程需要将计算量大的函数迁移到硬件上。本文通过提出一种算法,提出了一种识别此类函数的框架。该框架使用时间分析和聚类技术来实现目标。使用开源的spark编译器将函数转换为硬件描述语言,最后在嵌入式开发工具包中完成接口。
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引用次数: 2
Performance evaluation of DCT, Walsh, Haar and Hartley transforms on whole images and partial coefficients in Image Classification DCT、Walsh、Haar和Hartley变换在全图像和部分系数图像分类中的性能评价
H. B. Kekre, T. Sarode, F. Ansari
In recent years image processing tools and techniques are gaining continuous attention and recognition due to augmented usage of still and motion images in vivid fields like medical science, engineering, mass-media and GIS. Special category of image processing technique called “Image Classification” has got pivotal position in all the above said fields. An image classifier is a system which accepts query image as an input in part or whole form associates it with one of the stored classes and returns its class label/number as an output. Image classification helps in managing large amount of image data and easy retrieval of image(s) of interest using some kind of similarity measures like Euclidean Distance(Ed), Mean Square Error (MSE) etc. This paper presents broadly used image classification technique using the concept of feature vectors of partial coefficients using Discrete Cosine, Walsh and Haar and Hartley transforms. Partial coefficients of sizes 8×8, 16×16, 32×32 and 64×64 are used. Euclidian distance and MSE are used for similarity measures. The system uses two databases of 500 images each spread over 10 different categories. The results of various transforms on original and the portions of images are compared.
近年来,由于静态和动态图像在医学、工程、大众媒体和地理信息系统等生动领域的应用越来越广泛,图像处理工具和技术得到了不断的关注和认可。一种特殊的图像处理技术——“图像分类”在上述领域中占有举足轻重的地位。图像分类器是一个系统,它接受查询图像作为部分或整体形式的输入,将其与存储的类之一关联,并返回其类标签/编号作为输出。图像分类有助于管理大量的图像数据,并使用一些相似度量,如欧几里得距离(Ed),均方误差(MSE)等,方便检索感兴趣的图像。本文采用离散余弦变换、Walsh变换、Haar变换和Hartley变换,提出了一种广泛应用的图像分类技术,该技术利用偏系数特征向量的概念。采用尺寸为8×8、16×16、32×32、64×64的偏系数。欧几里得距离和均方差用于相似性度量。该系统使用两个数据库,每个数据库包含500张图像,分布在10个不同的类别中。比较了对原始图像和部分图像进行各种变换的结果。
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引用次数: 6
Tracking of a target person using face recognition by surveillance robot 监视机器人利用人脸识别跟踪目标人物
S. Kansal, A. Makhal, P. Chakraborty, G. Nandi
In this paper we designed an experimental setup in order to have human-robot interaction i.e. first we are going to detect the face and after that we recognise the detected face. Afterwards we get the persons upper body torso color as a key feature. As we extracted the color feature we can compute the moments and also evaluate the motion parameters so that the surveillance robot can track the person accordingly. We also had introduced Speech module in order to have a interaction between the remote and base station. Surveillance robot must track the targeted person in a robust manner in indoor and outdoor environment in different light and dynamic varying conditions. In our proposed setup we use PCA which is going to recognise the person in a real time environment and should communicate to the person via speech module deployed in the surveillance robot, as face recognition works on real time environment we are getting average recognition rate of 98%. Experiment demonstration validates the efficient performance of the approach.
在本文中,我们设计了一个实验装置,以便进行人机交互,即首先我们要检测人脸,然后我们识别被检测到的人脸。之后,我们得到了人的上半身躯干颜色作为一个关键特征。当我们提取颜色特征时,我们可以计算力矩并评估运动参数,以便监控机器人可以相应地跟踪人。为了实现遥控器与基站之间的交互,我们还引入了语音模块。监控机器人必须在不同光线和动态变化条件下,对室内和室外环境中的目标人物进行鲁棒跟踪。在我们提出的设置中,我们使用PCA,它将在实时环境中识别人,并通过部署在监控机器人中的语音模块与人通信,因为人脸识别工作在实时环境中,我们的平均识别率为98%。实验验证了该方法的有效性。
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引用次数: 4
Priority-based Congestion Control Protocol (PCCP) for controlling upstream congestion in Wireless Sensor Network 基于优先级的无线传感器网络上游拥塞控制协议(PCCP)
D. Patil, Sudhir N. Dhage
Congestion in Wireless Sensor Network (WSN) occurs when traffic load allocated to any sensor node is beyond its capacity. It is necessary to control the congestion traffic to support traditional quality of service (such as packet loss ratios, packet delay, wasting energy and throughput) especially, multimedia application of Wireless Multimedia Sensor Network (WMSN). Congestion control in WSN has been shown to be very effective with respect to extending lifespan of system. Hence to avoid the congestion in WSN, we proposed an efficient protocol called Priority-based Congestion Control Protocol (PCCP) which prevents an upstream congestion in WSN. The PCCP creates priority table based an importance of each node, and then sends this information to all the nodes within the network. Secondly, the major function of PCCP is to measure congestion level in the network using ratio of packet inter-arrival time along over packet service time. PCCP uses to control upstream congestion along with congestion degree and packet table. PCCP is hop-by-hop upstream congestion control protocol for WSN. PCCP provides work for packet-based computation to optimize congestion control. It can work under both single path & multipath routing. PCCP ensures guarantee of packet loss as well as delay, resulting each node can avoid unfairness and achieve flexible throughput. In this paper, we have proposed that PCCP provides better QoS by controlling network recourse management and network traffic to consuming efficient energy.
在无线传感器网络(WSN)中,当分配给任何传感器节点的流量负载超过其容量时,就会发生拥塞。为了保证传统的服务质量(如丢包率、包延迟、能量浪费和吞吐量),特别是无线多媒体传感器网络(WMSN)的多媒体应用,需要控制拥塞流量。无线传感器网络中的拥塞控制在延长系统寿命方面是非常有效的。因此,为了避免WSN中的拥塞,我们提出了一种有效的基于优先级的拥塞控制协议(PCCP)来防止WSN中的上游拥塞。PCCP根据每个节点的重要性创建优先级表,然后将此信息发送到网络中的所有节点。其次,PCCP的主要功能是测量网络中的拥塞程度,即数据包到达间时间利用率与数据包服务时间的比值。PCCP用于控制上游拥塞、拥塞程度和包表。PCCP是面向WSN的逐跳上行拥塞控制协议。PCCP为基于分组的计算提供了优化拥塞控制的工作。它可以在单路径和多路径路由下工作。PCCP保证了丢包和时延,使得各节点可以避免不公平,实现灵活的吞吐量。在本文中,我们提出PCCP通过控制网络资源管理和网络流量来有效地消耗能量,从而提供更好的QoS。
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引用次数: 25
Contour-traversal based algorithm for insertion of virtual advertisements in videos 基于轮廓遍历的视频虚拟广告插入算法
A. Hegde, D. Kumar, G. Srinivasa
This paper presents a method for the automated insertion of virtual advertisements (logos, messages, etc.) into videos. The method consists of detecting regular polygons from the edge maps of frames in a video. This is followed by the selection of an optimal candidate slot into which the desired advertisement is inserted. Experimental results demonstrate that the contour-tracing based rectangle detection algorithm presented in this paper outperforms its precedents such as the Hough Transform and ant-based polygon detection for the purposes of identifying appropriate slots for introducing content in videos.
本文提出了一种在视频中自动插入虚拟广告(标识、信息等)的方法。该方法包括从视频帧的边缘映射中检测正多边形。接下来是选择一个最优候选槽,在其中插入所需的广告。实验结果表明,本文提出的基于轮廓跟踪的矩形检测算法在识别视频中引入内容的合适位置方面优于Hough变换和基于蚂蚁的多边形检测。
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引用次数: 0
Image fusion using Kekre's hybrid wavelet transform 基于Kekre混合小波变换的图像融合
H. B. Kekre, T. Sarode, R. Dhannawat
Image fusion combines several images of same object or scene so that the final output image contains more information. The main requirement of the fusion process is to identify the most significant features in the input images and to transfer them without loss into the fused image. This paper proposes four new techniques for image fusion using Kekre's hybrid wavelet transform techniques and compare them. Hybrid matrices are generated using combination of various matrices like DCT, Hadamard and Kekre's Transform. The main advantage of these transform matrices is that it can be of any size N×N, which need not to be an integer power of 2.
图像融合将同一物体或场景的多幅图像进行融合,使最终输出的图像包含更多的信息。融合过程的主要要求是识别输入图像中最重要的特征,并将其无损地转移到融合图像中。本文提出了四种新的基于Kekre混合小波变换的图像融合技术,并对它们进行了比较。混合矩阵是利用DCT、Hadamard和Kekre变换等多种矩阵的组合生成的。这些变换矩阵的主要优点是它可以是任意大小N×N,不需要是2的整数次幂。
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引用次数: 12
Nondirected indoor infrared wireless channel modeling using modulation schemes 使用调制方案的非定向室内红外无线信道建模
P. Patil, D. D. Shah
The indoor infrared wireless communication has been introduced a new dimension for short range wireless communication. The modulation schemes play an important role during IR channel modeling. The modulation schemes enumerate the harshness of multipath ISI. This paper described and analyzed the various modulations schemes such as on-off-keying(OOK), pulse amplitude modulation (PAM) and pulse position modulation (PPM) and multilevel pulse amplitude and pulse position modulation (PAPM) for the performance measure of Non directed indoor IR channel. It performed the simulation analysis by taking into account the bit error rate (BER) . A fixed rectangular empty room with certain transmitter and receiver geometry was considered during the simulation.
室内红外无线通信为近距离无线通信开辟了一个新的领域。调制方案在红外信道建模中起着重要的作用。调制方案列举了多径ISI的严酷程度。本文介绍和分析了用于非定向室内红外信道性能测量的各种调制方案,如开-关键调制(OOK)、脉冲幅度调制(PAM)和脉冲位置调制(PPM)以及多电平脉冲幅度和脉冲位置调制(PAPM)。考虑误码率(BER),进行了仿真分析。仿真时考虑了一个固定的矩形空房间,该房间具有一定的发射器和接收器几何形状。
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引用次数: 0
Performance analysis of Alamouti scheme in Rayleigh channel Rayleigh信道中Alamouti方案的性能分析
N. Agarwal, S. Nema
The next-generation wireless systems are required to have high voice quality as compared to current cellular Mobile radio standards and provide high bit rate data services. The fundamental phenomenon which makes reliable wireless transmission difficult is time-varying multipath fading. In most scattering environments; antenna diversity is a practical, effective and, a widely applied technique for reducing the effect of multipath fading. Diversity techniques are mostly used in base stations to improve their reception quality. Hence transmit diversity schemes are very attractive. In this scheme, copies of the same symbol are transmitted through multiple antennas at different times, hence creating an artificial multipath distortion. A maximum likelihood sequence estimator (MLSE) or a minimum mean squared error (MMSE) equalizer is then used to resolve multipath distortion and obtain diversity gain. This paper presents performance analysis of the Alamouti (two-branch transmit diversity) scheme which provides the same diversity order as maximal-ratio receiver combining (MRC) with one transmit antenna, and two receive antennas. It is shown that the scheme may easily be generalized to two transmit antennas and M receive antennas to provide a diversity order of 2M. The digital modulation techniques employed in this work are BPSK and different orders of QAM.
与目前的蜂窝移动无线电标准相比,下一代无线系统需要具有更高的语音质量,并提供高比特率的数据服务。时变多径衰落是造成无线可靠传输困难的根本现象。在大多数散射环境中;天线分集是一种实用、有效、应用广泛的减少多径衰落影响的技术。分集技术主要用于提高基站接收质量。因此,发射分集方案非常有吸引力。在该方案中,同一符号的副本在不同时间通过多个天线传输,从而产生人为的多径失真。然后使用最大似然序列估计器(MLSE)或最小均方误差均衡器(MMSE)来解决多径失真并获得分集增益。本文对两支路发射分集(Alamouti)方案进行了性能分析,该方案提供了与最大比接收组合(MRC)相同的分集顺序,具有一个发射天线和两个接收天线。结果表明,该方案可以很容易地推广到两个发射天线和M个接收天线,以提供2M的分集顺序。本文采用的数字调制技术是BPSK和不同阶数的QAM。
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引用次数: 2
Ant Colony Optimizer as an Adaptive Classifier 蚁群优化器作为自适应分类器
A. Tayade, L. Ragha
The widespread popularity of Optimization Algorithm in many fields such as Optimization, Pattern Recognition, Feature Extraction, Feature Selection etc. is mainly due to their ability to solve optimization problems in path planning. Out of many kinds of optimization algorithms, Ant Colony Optimization Algorithm is one of the most popular optimization algorithms. Many algorithms that dynamically construct solution to Ant Colony Optimization have increased in recent years. Several ant colony optimization algorithms present a promising performance on combinatorial optimization problem. Among them, Max Min Ant System performs comparatively better for Travelling Salesman Problem as compared to Ant System and Ant Colony System. A method is proposed for Classification using Ant Colony Optimizer as an Adaptive Classifier. The Classifier using ACO may give more efficient and effective method for classification in the adaptive environment.
优化算法之所以在优化、模式识别、特征提取、特征选择等诸多领域得到广泛应用,主要是因为它能够解决路径规划中的优化问题。在众多的优化算法中,蚁群优化算法是最流行的一种优化算法。近年来,许多动态构造蚁群优化解的算法得到了发展。几种蚁群优化算法在组合优化问题上表现出良好的性能。其中,与蚂蚁系统和蚁群系统相比,最大最小蚂蚁系统在解决旅行商问题上的表现相对较好。提出了一种利用蚁群优化器作为自适应分类器的分类方法。采用蚁群算法的分类器可以在自适应环境下提供更高效的分类方法。
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引用次数: 4
Trust framework for calculating security strength of a cloud service 用于计算云服务安全强度的信任框架
R. Shaikh, M. Sasikumar
Cloud Computing is a style of computing over the internet. It has a significant potential impact on every aspect of IT. The elastic nature of cloud makes it suitable for many types of organization. There are lots of benefits in moving towards the cloud. Along with the benefits, it also suffers from various obstacles that act as a barrier in its growth. Various obstacles are identified one of which is security of data and applications. Security concerns in cloud computing is an active area of research and experimentation. Many security solutions are identified and many are evolving. Trust is also identified as one of the solutions for providing security and selecting a particular service. Various trust solution are existing for many collaborative environments. We are focusing on trust based solution for achieving security in cloud computing. A trust framework is proposed that calculates the trust value. A trust value acts as a means for selecting any cloud service, providing a security strength evaluator for service provider and users in a cloud computing environment.
云计算是一种基于互联网的计算方式。它对It的每个方面都有重大的潜在影响。云的弹性特性使其适用于许多类型的组织。向云迁移有很多好处。除了这些好处,它也面临着各种各样的障碍,这些障碍在它的发展中起着阻碍作用。识别了各种障碍,其中之一是数据和应用程序的安全性。云计算中的安全问题是一个活跃的研究和实验领域。已经确定了许多安全解决方案,并且许多解决方案正在发展。信任也被认为是提供安全性和选择特定服务的解决方案之一。对于许多协作环境,存在各种信任解决方案。我们专注于基于信任的云计算安全解决方案。提出了一个计算信任值的信任框架。信任值作为选择任何云服务的手段,为云计算环境中的服务提供商和用户提供安全强度评估器。
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引用次数: 18
期刊
2012 International Conference on Communication, Information & Computing Technology (ICCICT)
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