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International Conference on Pattern Recognition, Informatics and Medical Engineering (PRIME-2012)最新文献

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Filtering and segmentation of a uterine fibroid with an ultrasound images 子宫肌瘤超声图像的滤波与分割
J. Saranya, S. Malarkhodi
Image segmentation is important tasks in medical image analysis. The challenges in medical image segmentation arise due to poor image contrast and artifacts that result in missing or diffuse organ/tissue boundaries. The segmentation of an ultrasound image is a difficult task as it suffers from speckle noise. The main aim of this work is to segment the fibroid in the uterus. Uterine fibroid is the most common benign tumour of the female in the world. Uterine Fibroid segmentation in patient is the challenging task manually. Exactly extracting the fibroid in the uterus is the challenging task because of size, location and low contrast boundaries. Instead of doing the segmentation manually, this work proposes a new method for segmenting the fibroid in the uterus. The performance of this method is also commendable.
图像分割是医学图像分析中的一项重要任务。由于图像对比度差和导致器官/组织边界缺失或弥散的伪影,医学图像分割面临挑战。超声图像的分割是一项困难的任务,因为它受到斑点噪声的影响。这项工作的主要目的是分割子宫内的肌瘤。子宫肌瘤是世界上最常见的女性良性肿瘤。人工子宫肌瘤分割是一项具有挑战性的工作。由于子宫肌瘤的大小、位置和低对比边界,准确地提取子宫肌瘤是一项具有挑战性的任务。本文提出了一种新的子宫肌瘤分割方法,代替了手工分割。这种方法的性能也是值得称赞的。
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引用次数: 5
Channel estimation techniques for OFDM systems OFDM系统的信道估计技术
K. Vidhya, R. Kumar
In this work we have compared different types of channel estimation algorithm for Orthogonal Frequency Division Multiplexing (OFDM)systems. The result of the Mean Square algorithm(MMSE)was compared with Least Square(LS) algorithm.
在这项工作中,我们比较了不同类型的正交频分复用(OFDM)系统的信道估计算法。将均方算法(MMSE)与最小二乘算法(LS)的结果进行比较。
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引用次数: 11
Electronic voting machine — A review 电子投票机——回顾
D. A. Kumar, T. Ummal, Sariba Begum
Electronic Voting Machine (EVM) is a simple electronic device used to record votes in place of ballot papers and boxes which were used earlier in conventional voting system. Fundamental right to vote or simply voting in elections forms the basis of democracy. All earlier elections be it state elections or centre elections a voter used to cast his/her favorite candidate by putting the stamp against his/her name and then folding the ballot paper as per a prescribed method before putting it in the Ballot Box. This is a long, time-consuming process and very much prone to errors. This situation continued till election scene was completely changed by electronic voting machine. No more ballot paper, ballot boxes, stamping, etc. all this condensed into a simple box called ballot unit of the electronic voting machine. Because biometric identifiers cannot be easily misplaced, forged, or shared, they are considered more reliable for person recognition than traditional token or knowledge based methods. So the Electronic voting system has to be improved based on the current technologies viz., biometric system. This article discusses complete review about voting devices, Issues and comparison among the voting methods and biometric EVM.
电子投票机(EVM)是一种简单的电子设备,用来记录选票,取代传统投票系统中使用的选票和投票箱。投票或在选举中投票的基本权利构成了民主的基础。所有早期的选举,无论是邦选举还是中心选举,选民都是通过在他/她的名字上盖上邮票,然后按照规定的方法折叠选票,然后将其放入投票箱。这是一个漫长、耗时的过程,而且非常容易出错。这种情况一直持续到电子投票机彻底改变了选举现场。不再需要选票、投票箱、盖章等,这一切都浓缩在一个简单的盒子里,称为电子投票机的投票单元。由于生物识别标识符不能轻易放错位置、伪造或共享,因此它们被认为比传统的令牌或基于知识的方法更可靠。因此,电子投票系统必须在现有技术,即生物识别系统的基础上进行改进。本文对投票设备、投票方法和生物识别EVM的问题及比较进行了全面的综述。
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引用次数: 64
ORZEF: An optimized routing using zone to establish security in MANET using multipath and friend-based ad hoc routing ORZEF:一种使用区域的优化路由,在使用多路径和基于朋友的自组织路由的MANET中建立安全性
Gokulnath Thandavarayan, K. Sangeetha, S. Seerangan
Mobile Ad Hoc Network (MANET) is a wireless communication with a collection of devices that communicate with each other without the aid of any centralized administrator. Due to its properties MANET environment is prone to attacks in routes. ORZEF is a self-motivated routing system to provide has less security secure routing. When a node enters into a zone it distributes its secret key upto two hop count nodes and it shares their secret keys by using asymmetric key encryption. For each node routing zone is defined separately using its radius. When there is a malicious activity in the environment the authentication algorithm is initiated to isolate the malicious nodes. As a result of this scheme, the network will be able to effectively isolate the malicious nodes. Through extensive simulation analysis using QualNet simulator it is concluded that this scheme provides an efficient approach towards security and easier detection of the malicious nodes in the mobile ad hoc network and the power also utilized effectively.
移动自组织网络(MANET)是一种无线通信方式,在没有任何集中管理员的帮助下,由一组设备相互通信。由于其自身的特性,MANET环境在路由中容易受到攻击。ORZEF是一种自激励的路由系统,提供具有较少安全性的安全路由。当一个节点进入一个区域时,它将自己的秘密密钥分发给两个跳数节点,并通过非对称密钥加密共享它们的秘密密钥。对于每个节点,使用其半径分别定义路由区域。当环境中存在恶意活动时,启动身份验证算法以隔离恶意节点。该方案能够有效地隔离网络中的恶意节点。通过使用QualNet模拟器进行大量仿真分析,得出该方案为移动自组织网络提供了一种有效的安全方法,更容易检测到恶意节点,并且有效地利用了功率。
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引用次数: 2
An analysis on Qualitative Bankruptcy Prediction using Fuzzy ID3 and Ant Colony Optimization Algorithm 基于模糊ID3和蚁群优化算法的定性破产预测分析
A. Martin, V. Aswathy, S. Balaji, T. Lakshmi, V. Prasanna Venkatesan
Many Qualitative Bankruptcy Prediction models are available. These models use non-financial information as Qualitative factors to predict Bankruptcy. In the prior researches Genetic Algorithm was applied to generate Qualitative Bankruptcy Prediction Rules. However this Model uses only very less number of Qualitative factors and the generated rules has redundancy and overlapping. To improve the Prediction accuracy we have proposed a model which applies more number of Qualitative factors which can be categorized using Fuzzy ID3 Algorithm and Prediction Rules are generated using Ant Colony Optimization Algorithm (ACO). In Fuzzy ID3 the concept of Entropy and Information Gain helps to rank the qualitative parameters and this can be used to generate prediction rules in qualitative Bankruptcy prediction. The concept of pheromone depositing and updating in Ant Colony Algorithm reduce the false negative rules in the bankruptcy prediction. The heuristic and probabilistic features of Ant Colony Algorithm increase the prediction accuracy of Bankruptcy. By using these two algorithms we provide more accurate prediction.
有许多定性破产预测模型可用。这些模型使用非财务信息作为定性因素来预测破产。在以往的研究中,采用遗传算法生成定性破产预测规则。然而,该模型只使用了很少数量的定性因素,并且生成的规则存在冗余和重叠。为了提高预测精度,我们提出了一种采用模糊ID3算法对更多定性因子进行分类的模型,并采用蚁群优化算法(ACO)生成预测规则。在模糊ID3中,熵和信息增益的概念有助于对定性参数进行排序,并可用于定性破产预测中生成预测规则。蚁群算法中信息素存储和更新的概念减少了破产预测中的假负规则。蚁群算法的启发式和概率性提高了破产预测的准确性。通过使用这两种算法,我们提供了更准确的预测。
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引用次数: 9
A high throughput sort free VLSI architecture for wireless applications 用于无线应用的高吞吐量免排序VLSI架构
S. Soundharya, G. Prakash
For high data rate Multiple Input Multiple Output technology is used in wireless communications. The use of multiple antennas at both transmitter and receiver (MIMO) significantly increases the capacity and spectral efficiency of wireless systems. This paper presents a Field Programmable Gate Array (FPGA) implementation for a 4 × 4 breadth first K-best MIMO decoder using a 64 Quadrature Amplitude Modulation (QAM) scheme. A novel sort free approach to path extension, as well as, quantized metrics result in a high throughput, low power and area. Finally, VLSI architectural tradeoffs are explored for a synthesized using synopsys the power analysis, throughput analysis in 120 nm technology. The power needed is 20.0025 μW.
多输入多输出技术在无线通信中应用于高数据速率。在发送端和接收端同时使用多天线(MIMO)显著提高了无线系统的容量和频谱效率。本文提出了一种采用64正交调幅(QAM)方案实现4 × 4宽度优先k -最佳MIMO解码器的现场可编程门阵列(FPGA)。一种新的无排序的路径扩展方法,以及量化的指标,导致高吞吐量,低功耗和面积。最后,探讨了VLSI架构的权衡,以综合使用synopsys的功率分析,吞吐量分析在120纳米技术。所需功率为20.0025 μW。
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引用次数: 0
Characterization of skin lesions 皮肤病变的特征
K. Madhankumar, P. Kumar
Malignant melanoma is the deadliest form among all skin cancers. Fortunately, if detected early, even malignant melanoma may be treated successfully. In this paper, a new intelligent method of classifying benign and malignant melanoma lesions is used. As the first step of the image analysis, preprocessing techniques are used to remove noise and undesired structures from the images using filter such as median filtering. Segmentation is one of the important steps in cancer automatic detection, because it can greatly affect on the results of detection. In the second step, a simple thresholding method is used to segment and localize the lesion, a boundary tracing algorithm is also implemented to validate the segmentation. In the third step, the different features are extracted from a segmented image and classified by using Stolz algorithm.
恶性黑色素瘤是所有皮肤癌中最致命的一种。幸运的是,如果及早发现,即使是恶性黑色素瘤也可能成功治疗。本文提出了一种新的黑色素瘤良恶性病变智能分类方法。作为图像分析的第一步,使用预处理技术,通过中值滤波等滤波器去除图像中的噪声和不需要的结构。分割是肿瘤自动检测的重要步骤之一,对检测结果有很大的影响。第二步,采用简单的阈值分割方法对病灶进行分割和定位,并采用边界跟踪算法对分割结果进行验证。第三步,从分割后的图像中提取不同的特征,并使用Stolz算法进行分类。
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引用次数: 17
Novel reconfigurable architecture with low complexity FIR filter 新颖的可重构结构,低复杂度FIR滤波器
Sagadevan K V Babu, Samson S Arivumani, Asst Pg Scholar, Asst Prof, Prof
Reconfigurability and low complexity are two key requirements of Finite Impulse Response (FIR) filters employed in multi-standard wireless communication systems. In this paper, two new reconfigurable architectures of low complexity FIR filters are proposed, namely Constant Shift Method and Programmable Shift Method. The proposed FIR filter architecture is capable of operating for different wordlength filter coefficients without any overhead in the hardware circuitry. This reconfigurable architecture filters can be efficiently implemented by using common subexpression elimination (CSE) algorithm. Design examples show that the proposed 3 bit Binary Common Subexpression Elimination Constant Shift Method architecture offer speed improvement and Programmable Shift Method architecture offer area and power reduction compared to existing reconfigurable FIR filter.
可重构性和低复杂度是多标准无线通信系统中有限脉冲响应滤波器的两个关键要求。本文提出了两种新的低复杂度FIR滤波器的可重构结构,即恒移法和可编程移法。所提出的FIR滤波器架构能够在不增加硬件电路开销的情况下对不同字长滤波器系数进行操作。通过使用公共子表达式消除(CSE)算法,可以有效地实现这种可重构的体系结构过滤器。设计实例表明,与现有的可重构FIR滤波器相比,所提出的3位二进制公共子表达式消除恒定移位方法体系结构提供了速度提高和可编程移位方法体系结构提供了面积和功耗降低。
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引用次数: 1
Single-term Haar wavelet series technique for time varying linear and non-linear singular systems 时变线性和非线性奇异系统的单项Haar小波序列技术
S. Sekar, K. Prabakaran, E. Paramanathen
In this paper, a new technique known as Single Term Haar Wavelet Series (STHWS) has been presented to determine the solutions for the time varying linear and non-linear singular systems. The exact solutions and the solutions by the classical fourth order Runge-Kutta (RK) method for the problems of time varying linear and non-linear singular systems are compared with the simulated results by STHWS method. This new approach provides a better accuracy in finding discrete solutions of time varying systems for any length of time and it can be easily implemented in a digital computer which is an added advantage of this method.
本文提出了一种新的方法——单项Haar小波级数(STHWS)来确定时变线性和非线性奇异系统的解。对时变线性和非线性奇异系统问题的精确解和经典四阶龙格-库塔(RK)方法的解与STHWS方法的模拟结果进行了比较。该方法在求时变系统任意时间长度的离散解时具有较高的精度,并且易于在数字计算机上实现,这是该方法的另一个优点。
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引用次数: 0
Vegetable price prediction using data mining classification technique 基于数据挖掘分类技术的蔬菜价格预测
G. M. Nasira, N. Hemageetha
Each and every sector in this digital world is undergoing a dramatic change due to the influence of IT field. The agricultural sector needs more support for its development in developing countries like India. Price prediction helps the farmers and also Government to make effective decision. Based on the complexity of vegetable price prediction, making use of the characteristics of neural networks such as self-adapt, self-study and high fault tolerance, to build up the model of Back-propagation neural network to predict vegetable price. A prediction model was set up by applying the neural network. Taking tomato as an example, the parameters of the model are analyzed through experiment. At the end of the result of Back-propagation neural network shows absolute error percentage of monthly and weekly vegetable price prediction and analyze the accuracy percentage of the price prediction.
由于IT领域的影响,这个数字世界的每一个领域都在发生着巨大的变化。在印度等发展中国家,农业部门的发展需要更多的支持。价格预测有助于农民和政府做出有效的决策。针对蔬菜价格预测的复杂性,利用神经网络的自适应、自学习和高容错性等特点,建立了反向传播神经网络预测蔬菜价格的模型。应用神经网络建立了预测模型。以番茄为例,通过实验对模型参数进行了分析。最后给出了反向传播神经网络的月度和每周蔬菜价格预测的绝对误差百分比,并分析了价格预测的准确率百分比。
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引用次数: 24
期刊
International Conference on Pattern Recognition, Informatics and Medical Engineering (PRIME-2012)
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