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2013 3rd IEEE International Advance Computing Conference (IACC)最新文献

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Design and implementation of 4-bit arithmetic logic unit using Quantum Dot Cellular Automata 基于量子点元胞自动机的4位算术逻辑单元设计与实现
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514367
M. Waje, P. Dakhole
Quantum Dot Cellular Automata is one of the six emerging technologies which help us to overcome the limitations of CMOS technology. Design of 4-bit ALU for AND, OR, XOR, and ADD operations using QCA is discussed through this paper. This design of 4-bit ALU using QCA is simple in structure having significantly lesser elements as compared to CMOS design. It also gives better result in terms of speed, area and power. A QCADesigner tool is used for Simulation of different components of 4 bit ALU.
量子点元胞自动机是帮助我们克服CMOS技术局限性的六大新兴技术之一。本文讨论了用QCA实现与、或、异或和加运算的4位ALU的设计。这种使用QCA的4位ALU设计结构简单,与CMOS设计相比,元件明显较少。它在速度,面积和功率方面也提供了更好的结果。利用qcaddesigner工具对4位ALU的不同元件进行仿真。
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引用次数: 36
Customized architecture for implementing configurable FFT on FPGA 在FPGA上实现可配置FFT的定制架构
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514412
V. Chandrakanth, S. Tripathi
Fourier transform algorithm has encompassed diverse fields of engineering including specialized fields like radars, communications and image processing systems. Therefore there have been continual efforts to improve the efficiency of FFT implementation in real time systems and other hardware. To reduce design time and time to market, FPGA vendors have developed IP cores which can be readily used in our applications. But these IP core designs though efficient are highly abstract and do not provide the designer to modify them according to his requirement which leads to inefficient design realization. Vendor provided IP cores do not give access to FFT kernel matrix thus restricting the configurability and efficiency of using them. In this paper we have designed a customized architecture to perform FFT with access to twiddle factors for improved configurability. The designed architecture is further modified to perform variable point FFT targeted for application in multirate systems. The architecture designed is generic and can be implemented on any vendor platform.
傅里叶变换算法已经涵盖了多个工程领域,包括雷达、通信和图像处理系统等专业领域。因此,人们一直在努力提高FFT在实时系统和其他硬件中的实现效率。为了缩短设计时间和上市时间,FPGA供应商开发了可以在我们的应用中轻松使用的IP内核。但是这些IP核设计虽然效率很高,但却非常抽象,不能让设计者根据自己的需求进行修改,导致设计实现效率低下。供应商提供的IP内核不允许访问FFT内核矩阵,从而限制了使用它们的可配置性和效率。在本文中,我们设计了一个定制的体系结构来执行FFT,并访问旋转因子以提高可配置性。对所设计的体系结构进行了进一步的改进,以实现针对多速率系统应用的可变点FFT。所设计的体系结构是通用的,可以在任何供应商平台上实现。
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引用次数: 3
Task allocation in a massively parallel system using Finite Automata 基于有限自动机的大规模并行系统任务分配
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514298
Zubair Khan Ravindra Singh, Sumit Sanwal, Arun Gangwar, Shabbir Alam
In this paper we are proposing a new approach for tasks allocation in a massively parallel system using Finite Automata. On the basis of task flow model of finite automata., we find the turnaround time for a parallel system using finite automata as a directed acyclic graph in the second section of the paper we discuss regarding the finite automata and directed acyclic graph after that we change finite automata into DAG for massively parallel system. All the simulations are performing in Intel C++ parallel compiler and compare these results with several interesting scheduling algorithms and we get better turnaround time.
本文提出了一种利用有限自动机进行大规模并行系统任务分配的新方法。基于有限自动机的任务流模型。在本文的第二部分,我们讨论了有限自动机和有向无环图作为并行系统的有向无环图,然后我们将有限自动机转化为大规模并行系统的DAG。所有的模拟都是在Intel c++并行编译器中进行的,并将这些结果与几种有趣的调度算法进行比较,我们得到了更好的周转时间。
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引用次数: 0
Real time RSSI error reduction in distance estimation using RLS algorithm 利用RLS算法实时减小距离估计中的RSSI误差
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514305
R. Mehra, Ashutosh Kumar Singh
Recently received signal strength (RSS)-based distance estimation technique has been proposed as a low complexity, low-cost solution for mobile communication node with minimum RSSI error. After investigating the existing algorithm of location technique, it is observed that the distribution of RSSI-value at each sample point is fluctuant even in the same position due to shadow fading effect. Therefore, here present a novel method for RSSI error reduction in distance estimation using recursive least square (RLS)-algorithm to the existing deterministic algorithms. The proposed method collects RSSI-values from the mobile communication node to build the probability model. Once the probability models are estimated for different standard deviation related to path loss exponent using adaptive filtering in real time, it is possible to accurately determine the distance between the mobile communication node and fixed communication node. From simulation results it is shown, that the accuracy of RSSI-value for mobile communication node in real time distance estimation is improved in changing environments.
近年来,基于接收信号强度(RSS)的距离估计技术作为一种低复杂度、低成本、RSSI误差最小的移动通信节点估计方法被提出。通过对现有定位技术算法的研究发现,即使在同一位置,由于阴影衰落效应,每个样本点的rssi值分布也是波动的。因此,本文提出了一种利用递推最小二乘(RLS)算法对现有确定性算法进行距离估计的RSSI误差减小的新方法。该方法收集移动通信节点的rssi值,建立概率模型。利用自适应滤波实时估计出与路径损耗指数相关的不同标准差的概率模型,就可以准确地确定移动通信节点与固定通信节点之间的距离。仿真结果表明,在变化的环境下,移动通信节点实时距离估计的rssi值精度得到了提高。
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引用次数: 28
Local entropy based brain MR image segmentation 基于局部熵的脑MR图像分割
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514403
A. Chaudhari, J. Kulkarni
Magnetic Resonance Imaging (MRI) offers a lot of information for medical examination. Fast, accurate and reproducible segmentation of MRI is desirable in many applications. Brain image segmentation is important from clinical point of view for detection of tumor. Brain images mostly contain noise, inhomogeneity and sometimes deviation. Therefore, accurate segmentation of brain images is a very difficult task. In this paper we present an automatic method of brain segmentation for detection of tumor. The MR images from T1, T2 and flair sequences are used for the study along with axial, coronal and sagitial slices. The segmentation of MR images is done using textural features based on gray level co occurrence matrix. The textural feature used is the entropy of image.
磁共振成像(MRI)为医学检查提供了很多信息。快速、准确和可重复的MRI分割在许多应用中是理想的。脑图像分割是临床诊断肿瘤的重要手段。大脑图像大多存在噪声、不均匀性,有时甚至存在偏差。因此,准确分割脑图像是一项非常困难的任务。本文提出了一种用于肿瘤检测的自动脑分割方法。T1、T2和flair序列的MR图像与轴向、冠状和矢状切片一起用于研究。利用基于灰度共生矩阵的纹理特征对MR图像进行分割。使用的纹理特征是图像的熵。
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引用次数: 15
A novel smart card mutual authentication scheme for session transfer among registered devices 一种用于注册设备间会话传输的智能卡互认证方案
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514456
R. S. Pippal, C. Jaidhar, S. Tapaswi
The goal of this paper is to design a mutual authentication scheme that supports secure data service migration among multiple registered devices (like PC, Laptop, Smartphone, etc.) so that each user can use the most suitable device whenever he/she feels. Authentication based on single factor depends on user's knowledge of some secret i.e. a password or a PIN. However, it is not secure enough. Two factor authentication is one which can be used as strong authentication scheme. This paper proposes mutual authentication scheme for session transfer among registered devices using smart card. Its security relies on the hardness of solving discrete logarithm problem and one way hash function. Random nonce is employed as a replacement for timestamp so as to avoid the cost of implementing clock synchronization between user and the server. Security analysis proves that this scheme is immune to the presented attacks and provides essential security features.
本文的目标是设计一个相互认证方案,支持多个注册设备(如PC, Laptop, Smartphone等)之间的安全数据服务迁移,使每个用户可以随时使用最适合的设备。基于单一因素的身份验证取决于用户对某些秘密的了解,即密码或PIN。然而,它还不够安全。双因素认证是一种强认证方案。提出了一种基于智能卡的注册设备间会话传输的相互认证方案。其安全性依赖于离散对数问题的求解难度和单向哈希函数。为了避免在用户和服务器之间实现时钟同步的成本,使用随机nonce代替时间戳。安全分析表明,该方案不受上述攻击的影响,并提供了必要的安全特性。
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引用次数: 2
RatioRank: Enhancing the impact of inlinks and outlinks RatioRank:提高链接和外链的影响
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514328
R. Singh, D. Sharma
As web is the largest collection of information and plenty of pages or documents are newly added and deleted on frequent basis due to the dynamic nature of the web. The information present on the web is of great need, the world is full of questions and the web is serving as the major source of gaining information about specific query made by the user. As per the search engine for the query, a number of pages are retrieved among which the quality of the page that are retrieved is questioned. On the retrieved pages the search engine apply certain algorithms to bring an order to the pages retrieved so that the most relevant document or pages are displayed at the top of list. In this paper a new page ranking algorithm known as the RatioRank is discussed, in which the inlink weights and outlink weights are used with the consideration of number of visit count and is compared with some algorithms by using certain parameters.
由于web是最大的信息集合,由于web的动态性,大量的页面或文档被频繁地添加和删除。网络上的信息是非常需要的,世界上充满了问题,网络是获取用户特定查询信息的主要来源。根据查询的搜索引擎,检索到许多页面,其中检索到的页面的质量受到质疑。在检索到的页面上,搜索引擎应用某些算法对检索到的页面进行排序,以便最相关的文档或页面显示在列表的顶部。本文讨论了一种新的网页排名算法——RatioRank,该算法在考虑访问量的情况下使用了链接权值和外链权值,并通过一定的参数与一些算法进行了比较。
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引用次数: 8
Performance evaluation of edge detectors - morphology based ROI segmentation and nodule detection from DICOM lung images in the noisy environment 边缘检测器的性能评价——基于形态学的ROI分割和噪声环境下DICOM肺图像的结节检测
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514386
V. Vijaya Kishore, R. V. S. Satyanarayana
Several lung diseases are diagnosed detecting patterns of lung tissue in various medical imaging obtained from MRI, CT, US and DICOM. In recent years many image processing procedures are widely used on medical images to detect lung patterns at an early and treatment stages. Several approaches to lung segmentation combine geometric and intensity models to enhance local anatomical structure. When the lung images are added with noise, two difficulties are primarily associated with the detection of nodules; the detection of nodules that are adjacent to vessels or the chest wall corrupted and having very similar intensity; and the detection of nodules that are non-spherical in shape due to noise. In such cases, intensity thresholding or model based methods might fail to identify those nodules. Edges characterize boundaries and are hence of fundamental importance in image processing. Image edge detection significantly reduces the amount of data by filtering and preserving the important structural attributes. So understanding of edge detecting algorithms is necessary. In this paper Morphology based Region of interest segmentation combined with watershed transform of DICOM lung image is performed and comparative analysis in noisy environment such as Gaussian, Salt & Pepper, Poisson and speckle is performed. The ROI lung area blood vessels and nodules from the major lung portion are extracted using different edge detection filters such as Average, Gaussian, Laplacian, Sobel, Prewitt, Unsharp and LoG in presence of noise. The results are helpful to study and analyse the influence of noise on the DICOM images while extracting region of interest and to know how effectively the operators are able to detect, overcoming the impact of different noise. The evaluation process is based on parameters from which decision for the choice can be made.
通过MRI、CT、US和DICOM等不同的医学影像,可以诊断出几种肺部疾病。近年来,许多图像处理程序被广泛应用于医学图像,以在早期和治疗阶段检测肺部模式。几种肺分割方法结合几何和强度模型来增强局部解剖结构。当肺部图像加入噪声时,两个主要困难与结节的检测有关;临近血管或胸壁病变且强度相似的结节;以及因噪声导致的非球形结节的检测。在这种情况下,强度阈值或基于模型的方法可能无法识别这些结节。边缘是边界的特征,因此在图像处理中具有重要意义。图像边缘检测通过过滤和保留重要的结构属性,大大减少了数据量。因此,了解边缘检测算法是必要的。本文将基于形态学的兴趣区域分割结合分水岭变换对DICOM肺图像进行分割,并在高斯、椒盐、泊松和散斑等噪声环境下进行对比分析。在噪声存在的情况下,使用Average、Gaussian、Laplacian、Sobel、Prewitt、Unsharp和LoG等不同的边缘检测滤波器提取ROI肺区血管和肺主部分的结节。这些结果有助于研究和分析噪声对DICOM图像在提取感兴趣区域时的影响,以及了解算子如何有效地检测和克服不同噪声的影响。评估过程是基于可以做出选择决策的参数。
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引用次数: 20
A systematic approach for Cad model generation Of hole features from point cloud data 基于点云数据的孔特征Cad模型生成的系统方法
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514430
S. Kansal, J. Madan, Ashutosh Kumar Singh
One of the most familiar problem in reverse engineering for generating CAD model from point cloud of physical part is presence of deep and narrow holes. Triangulation is one of the important step for generating a CAD model in reverse engineering. Due to formation of incorrect triangulations along the boundary of a hole, reconstruction algorithms are not able to recover the hole boundaries. A systematic approach for CAD model generation of parts with hole features is presented in this paper, which includes three modules of the system: a pre-processing algorithm to reduce the size of point cloud data, surface reconstruction algorithm based on Delaunay triangulation, and post processing algorithm to refine the mesh generated through triangulation. The proposed system is verified on some example parts containing hole features. The results obtained from the proposed system are encouraging and, we intend to implement this on some point cloud data obtained from physically existing parts.
在逆向工程中,利用实物零件的点云生成CAD模型最常见的问题之一是存在深孔和窄孔。三角剖分是逆向工程中生成CAD模型的重要步骤之一。由于沿孔洞边界形成了不正确的三角剖分,重建算法无法恢复孔洞边界。本文提出了一种具有孔特征零件CAD模型生成的系统方法,该系统包括三个模块:减小点云数据大小的预处理算法、基于Delaunay三角剖分的曲面重构算法和对三角剖分生成的网格进行细化的后处理算法。在含有孔特征的零件实例上对该系统进行了验证。从所提出的系统中获得的结果是令人鼓舞的,我们打算在从物理存在的部件中获得的一些点云数据上实现它。
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引用次数: 5
Integrating WSN with web services for patient's record management using RFID 将无线传感器网络与web服务集成,使用RFID进行患者记录管理
Pub Date : 2013-05-13 DOI: 10.1109/IADCC.2013.6514296
M. Ananthi, M. Sumalatha
Web service supports interoperability for collecting, storing, manipulating and retrieving data from heterogeneous environments. The Wireless Sensor Network is a resource-constrained device, which is low cost, low power and small in size and used in various applications such as industrial control & monitoring, environmental sensing, health care, etc. The main intent is to design a middleware that hides the complexity of accessing the sensor network environment and developing an application for sensor web enablement. This concept holds great importance because integrating wireless sensor network into IP-based systems are still a challenging issue. It is very important to collect patient's details during the emergency period. To create a web service to manage patient's personal data with the help of Radio Frequency Identification Tag (RFID), Web Service is dedicated to collecting, storing, manipulating, and making available clinical information. Context-aware services are needed for searching information more accurately and to produce highly impeccable output.
Web服务支持从异构环境中收集、存储、操作和检索数据的互操作性。无线传感器网络是一种资源受限的设备,具有低成本、低功耗、体积小的特点,可用于工业控制与监测、环境传感、医疗保健等各种应用。其主要目的是设计一个中间件,隐藏访问传感器网络环境和开发传感器网络启用应用程序的复杂性。这个概念非常重要,因为将无线传感器网络集成到基于ip的系统中仍然是一个具有挑战性的问题。在急诊期间收集病人的详细资料是非常重要的。为了创建一个借助射频识别标签(RFID)管理患者个人数据的web服务,web service致力于收集、存储、操作和提供临床信息。上下文感知服务需要更准确地搜索信息并产生高度精确的输出。
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引用次数: 6
期刊
2013 3rd IEEE International Advance Computing Conference (IACC)
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