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2014 International Conference on Contemporary Computing and Informatics (IC3I)最新文献

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Video retrieval: An accurate approach based on Kirsch descriptor 视频检索:一种基于Kirsch描述符的精确方法
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019753
B. H. Shekar, K. R. Holla, M. Kumari
In this paper, a video retrieval model is developed based on Kirsch local descriptor. In the first stage, the input video is segmented into shots and keyframes are extracted. In the next stage, local descriptors are extracted from each keyframe and clustered into k clusters using k-means clustering procedure. Given a query frame, the local descriptors are extracted from it in a similar manner, and then compared with the descriptors of the database video using k-nearest neighbor search algorithm to find the matching keyframe. Experiments have been performed on the TRECVID video segments to demonstrate the performance of the proposed approach for video retrieval applications.
本文提出了一种基于Kirsch局部描述符的视频检索模型。在第一阶段,输入视频被分割成镜头并提取关键帧。在下一阶段,从每个关键帧中提取局部描述符,并使用k-means聚类过程将其聚类到k个聚类中。给定一个查询帧,以类似的方式从中提取局部描述符,然后使用k近邻搜索算法与数据库视频的描述符进行比较,找到匹配的关键帧。在TRECVID视频片段上进行了实验,验证了该方法在视频检索应用中的性能。
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引用次数: 3
A novel cross layer wireless mesh network protocol for distributed generation in electrical networks 一种用于电网分布式发电的新型跨层无线网状网络协议
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019824
S. V. Vambase, S. Mangalwede
One of the most widely used resources is electricity. However, electrical network has a serious issue of uniform distribution of electricity. This paper investigates the distributed generation systems in electrical network and proposes an interdisciplinary mechanism for effective sharing of electricity across the electrical sub-network. The proposed mechanism is based on wireless mesh network and micro-controller. The proposed system forms a wireless mesh network used to exchange information (such as current status, predicted status of electricity generators) between mesh nodes (in WMN). The information from mesh node is used by micro-controller to drive the electrical devices. The micro-controller is responsible for controlling the direction of flow of electricity and quantity of electricity to be permitted on a particular part of electrical network.
最广泛使用的资源之一是电力。然而,电网存在着电力均匀分布的严重问题。本文对电网中的分布式发电系统进行了研究,提出了一种跨电力子网络有效共享电力的跨学科机制。该机制基于无线网状网络和微控制器。该系统形成一个无线网状网络,用于在网状节点(在WMN中)之间交换信息(如发电机的当前状态、预测状态)。微控制器利用网格节点的信息驱动电气设备。微控制器负责控制电流的流向和电网特定部分允许的电量。
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引用次数: 4
High performance single and multi-GPU acceleration for Diffuse Optical Tomography 用于漫射光学断层成像的高性能单和多gpu加速
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019809
M. Saikia, R. Kanhirodan
Diffuse Optical Tomography (DOT) is a diagnostic imaging modality, where optical parameters such as absorption and scattering coefficient distributions inside the living tissue are recovered to understand the structural and functional variations in the tissue under study. The numerical method of DOT image reconstruction is an iterative process that demands high computational power, especially in the case of recovering fully three dimensional (3D) optical property distribution inside a complex geometry such as human head which hampers physician to view reconstructed images and monitor a patient in real time. In order to reconstruct 3D DOT images at a high speed, Broyden method based iterative image reconstruction algorithm and a parallelization strategy are employed in CUDA parallel computing platform to utilize tremendous computational power of GPU. Three different single GPU systems equipped with Nvidia Tesla C2070, Tesla k20c and Tesla k40 respectively, and a muti-GPU (two Tesla M2090 GPUs) in a computing node in a HPC cluster are used to evaluate computation performance due to algorithmic improvement and GPU parallel computation. We have used three dimensional finite element method (FEM) and discretized an infant head into 45702 tetrahedral elements and 8703 nodes to solve the forward and inverse problems. We have achieved a significant speedup for the 3D DOT image reconstruction of the head phantom.
漫射光学断层扫描(DOT)是一种诊断成像方式,通过恢复活体组织内部的吸收和散射系数分布等光学参数来了解被研究组织的结构和功能变化。DOT图像重建的数值方法是一个迭代的过程,需要很高的计算能力,特别是在恢复复杂几何结构(如人体头部)内部的三维光学特性分布的情况下,这阻碍了医生查看重建图像和实时监测患者。为了高速重建三维DOT图像,在CUDA并行计算平台上采用基于Broyden方法的迭代图像重建算法和并行化策略,充分利用GPU的巨大计算能力。采用Nvidia Tesla C2070、Tesla k20c和Tesla k40三种不同的单GPU系统,以及HPC集群中一个计算节点的多GPU(两个Tesla M2090 GPU),通过算法改进和GPU并行计算来评估计算性能。采用三维有限元方法,将婴儿头部离散为45702个四面体单元和8703个节点,求解了正逆问题。我们对头部幻影的3D DOT图像重建实现了显著的加速。
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引用次数: 17
An application of Fourier statistical features in scene text detection 傅里叶统计特征在场景文本检测中的应用
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019660
H. C. Vinod, S. Niranjan, V. N. Manjunath Aradhya
Text that appears in images contains important and useful data. Text detection and extraction in images have been applied in many applications. In this paper, we propose n Fourier-Statistical Features in RGB space and Mathematical statistical method for detecting and extracting text in camera images. In RGB space Fourier-Statistical Features is used for detecting text in the image of complex background, contrasting fonts, distinct scripts and different font sizes, In RGB space Fourier transform based features with statistical features and then figured out Fourier-Statistical Features from RGB bands are subject to Fuzzy C-means clustering to classify text pixels from the image background. Classified text pixels of text blocks are determined by inspecting the projection profiles, mathematical statistical method and extract the text part from the image. The suggested approach is examined by carrying on experiments on images of low contrast, complex background, multilingual languages, contrasting fonts, and sizes of text in the image.
出现在图像中的文本包含重要和有用的数据。图像中的文本检测和提取已经在很多领域得到了应用。本文提出了RGB空间中的n个傅里叶统计特征和用于检测和提取相机图像中的文本的数理统计方法。在RGB空间中,傅里叶统计特征用于检测图像中复杂背景、对比字体、鲜明字体和不同字体大小的文本,在RGB空间中,基于傅里叶变换的特征与统计特征相结合,然后从RGB波段中计算出傅里叶统计特征,对图像背景中的文本像素进行模糊c均值聚类。通过检测文本块的投影轮廓,采用数理统计方法确定文本块的分类文本像素,并从图像中提取文本部分。通过对低对比度、复杂背景、多语言、对比字体和图像中文本大小的图像进行实验来检验所建议的方法。
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引用次数: 5
Architectural semantics of AADL using Event-B 使用Event-B的AADL体系结构语义
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019780
Meenakshi D'Souza, S. Ramesh, M. Satpathy
AADL (Architectural Analysis and Design Language) can describe the architecture of an embedded control system at various levels of abstraction. In addition, AADL supports refinement mechanisms for refining abstract models to more detailed ones. However, the refinement mechanism in AADL is of informal nature. Event-B is an independent formal modelling notation for rigorous development of software systems. In Event-B, consistency of a model and refinement relationship can be formally verified. In this paper, we consider a meaningful subset of AADL, and give its semantics in terms of refinement and model decomposition mechanism of Event-B. An AADL model at any level of abstraction can be mapped to an Event-B model, and in the process, the informal refinement relationship between AADL models can be formalized in Event-B. In addition, the decomposition of a component into sub-components can be mapped to Event-B decomposition. We discuss our approach by referring to the case study of a simplified Cruise Controller.
AADL(体系结构分析与设计语言)可以在不同的抽象层次上描述嵌入式控制系统的体系结构。此外,AADL支持将抽象模型细化为更详细的模型的细化机制。然而,AADL中的细化机制是非正式的。Event-B是一种独立的形式化建模符号,用于软件系统的严格开发。在Event-B中,可以正式验证模型和细化关系的一致性。本文考虑了一个有意义的AADL子集,并从Event-B的细化和模型分解机制方面给出了它的语义。任何抽象级别的AADL模型都可以映射到Event-B模型,并且在此过程中,AADL模型之间的非正式细化关系可以在Event-B中形式化。此外,将组件分解为子组件可以映射到Event-B分解。我们通过一个简化的巡航控制器的案例研究来讨论我们的方法。
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引用次数: 5
Designing challenges to utilize white-space for configurable femtocell base on slotted TDM 基于开槽时分复用的可配置基站利用空白空间的设计挑战
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019640
Nikhil P. Wyawahare, S. Haridas
This paper is based on deployment of white spaces which are free or unused frequency space. This term related with Television frequency broadcast range is known as TV White Space (TVWS). So the transition of analog TV signals into digital TV signals results in creation of some more free frequency spectrum that also adds up to more TV white Spaces, since earlier TV channels which were being transmitted were allotted a certain UHF/VHF frequency channel bands. Now these TV channels are encoded digitally in a slightly different band and then transmitted. With this, the availability of White Space Spectrum has increased and so, many wireless solution providers are getting attracted to develop and deploy as opportunistic spectrum access in Wi-Fi like systems working on TV White Spaces. In time domain (TDMA) these white spaces can be referred as free or unused time slots. And are selected for transmission of messages using message generator, here selection and detection is done at transmitter section.
本文基于空闲或未使用频率空间的空白空间的部署。这个与电视频率广播范围有关的术语被称为电视空白空间(TVWS)。因此,模拟电视信号向数字电视信号的转换导致产生更多的自由频谱,这也增加了更多的电视空白,因为正在传输的早期电视频道被分配了一定的UHF/VHF频段。现在这些电视频道在一个稍微不同的频带进行数字编码,然后传输。因此,白色空间频谱的可用性增加了,因此,许多无线解决方案提供商被吸引来开发和部署作为在电视白色空间上工作的Wi-Fi系统中的机会性频谱接入。在时域(TDMA)中,这些空白可以称为空闲时隙或未使用时隙。并通过消息发生器选择用于发送的消息,这里的选择和检测是在发送段完成的。
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引用次数: 5
Power cognizant algorithms using slack reclamation method 基于松弛回收方法的功率认知算法
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019696
B. Beena, C. Prashanth
In this paper, we present few energy-cognizant algorithms using slack reclamation method. In the present design, the Earliest-Deadline-First (EDF) scheduling policies have been employed on the both CPUs for the dynamic tasks and FIFO scheduling for static tasks. When a new task arrives and the primary processor is active then that task will be scheduled in secondary if that processor is inactive else based on priority context switching will happen. The proposed System shows significant energy saving compared to existing SSPT algorithms.
在本文中,我们提出了几种利用松弛回收方法的能量认知算法。在本设计中,两个cpu对动态任务采用了最早截止日期优先调度策略,对静态任务采用了先进先出调度策略。当一个新任务到达并且主处理器处于活动状态时,如果该处理器处于非活动状态,则该任务将被调度到辅助处理器中,否则将发生基于优先级上下文切换的情况。与现有的SSPT算法相比,该系统具有显著的节能效果。
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引用次数: 2
SAHI vs. Selenium: A comparative analysis SAHI与硒:比较分析
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019594
Thanuja Janarthana Naidu, Nor Asyikin Basri, Saravanan Nagenthram
Functional testing for wireless based graphic user interfaces is one of the most routine and basic quality verification and validation on telecommunication products. These tests are often done based on requirements and specifications set and defined by product designers and original equipment manufacturers. As manual testing consumes considerable resource, having various time-to-market periods and user scenarios, automation is vital for testing. There are several tools that could perform automation, so we have conducted a study on two of the most commonly used web automation testing tools to allow test engineers and web and wireless software developers to make an informed decision on which tools to use based on their needs and resource. Which tool would give the best user experience? Which is easier to learn and maintain? Which tool needs lesser test resources and how convenient would the setup be for multiple iteration testing cycles? These, among other questions are answered during the course of this white paper.
基于无线图形用户界面的功能测试是电信产品最常规和最基本的质量验证和验证之一。这些测试通常是根据产品设计师和原始设备制造商设定和定义的要求和规格进行的。由于手动测试消耗了大量的资源,具有各种上市时间和用户场景,因此自动化对于测试至关重要。有几种工具可以执行自动化,因此我们对两种最常用的网络自动化测试工具进行了研究,以允许测试工程师、网络和无线软件开发人员根据他们的需求和资源做出明智的决定,选择使用哪种工具。哪个工具能提供最好的用户体验?哪个更容易学习和维护?哪个工具需要较少的测试资源,以及对于多个迭代测试周期的设置有多方便?这些问题以及其他问题将在本白皮书的过程中得到解答。
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引用次数: 9
An approach for face detection using artificial intelligence 一种基于人工智能的人脸检测方法
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019739
Vandana S. Bhat, J. Pujari
This paper proposes a method for detecting faces in a given image by combining Gabor filter and Neural network. The first phase uses gabor filter which generates a feature set. Face and non face templates is taken and processed with gabor filter.The face images are present in spatial (time) domain. The conversion of images into frequency domain is processed through inverse fast fourier transform. The subsequent frequency domain images is conjugated with gabor filter bank and feature vector is generated. The second phase involves a method where all the features are given as input to neural network of 2 hidden layer with scaled conjugate training. Thus this approach being deployed, is a convolution of Gabor filter with frequency domain of training and test images provided a feature vector that was sourced to neural network. Proposed system was tested and the results indicated the efficient performance.
本文提出了一种将Gabor滤波与神经网络相结合的人脸检测方法。第一阶段使用gabor滤波器生成特征集。人脸模板和非人脸模板采用gabor滤波器进行处理。人脸图像存在于空间(时间)域。通过快速傅里叶反变换将图像转换到频域。随后的频域图像与gabor滤波器组进行共轭,生成特征向量。第二阶段的方法是将所有特征作为输入输入到2隐层神经网络中,并进行缩放共轭训练。因此,这种方法被部署,是一个卷积的Gabor滤波器与频域的训练和测试图像提供了一个特征向量,来源神经网络。对该系统进行了测试,结果表明该系统具有良好的性能。
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引用次数: 0
Survey on interoperability, security, trust, privacy standardization of cloud computing 云计算的互操作性、安全、信任、隐私标准化研究
Pub Date : 2014-11-01 DOI: 10.1109/IC3I.2014.7019735
C. Saravanakumar, C. Arun
Cloud computing is a service oriented concept which offers everything as a service. These services are deployed at the server with necessary credentials in order to provide reliable services to the customer. The customer always wants to process and store the data in the cloud with an efficient access over different location. The security is the key parameter to secure the customer's data. The cloud computing security issues are addressed in various standards and techniques which lacks in providing a complete solution. The privacy issues in the cloud access are handled and assessed by using privacy protocols and assessment techniques which are also addressed. The trust issues in cloud computing has been addressed with different models. An inter-cloud and intra-cloud standard of cloud interoperability has been identified in order to highlight the challenges exist during the cloud interaction. The cloud resources are deployed over cloud environment with different models also faces a problem. This paper focuses on a recent survey related to the cloud interoperability, security, privacy and trust based on standards and guidelines have been analyzed. The overall focus on this paper is to establish an interoperability among different cloud service providers for effective interaction by maximizing the QoS of cloud computing.
云计算是一个面向服务的概念,它以服务的形式提供一切。这些服务使用必要的凭证部署在服务器上,以便向客户提供可靠的服务。客户总是希望在云中处理和存储数据,并在不同位置进行有效访问。安全性是保证客户数据安全的关键参数。云计算安全问题在各种标准和技术中得到解决,但缺乏一个完整的解决方案。通过使用隐私协议和评估技术来处理和评估云访问中的隐私问题。云计算中的信任问题已经用不同的模型解决了。已经确定了云互操作性的云间和云内标准,以突出云交互期间存在的挑战。云资源部署在不同模型的云环境上也面临着一个问题。本文重点介绍了最近一项有关云互操作性的调查,对基于安全、隐私和信任的标准和指南进行了分析。本文的总体重点是通过最大化云计算的QoS,在不同的云服务提供商之间建立有效交互的互操作性。
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引用次数: 26
期刊
2014 International Conference on Contemporary Computing and Informatics (IC3I)
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