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

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Reflective code for gray block embedding 灰色块嵌入的反射代码
S. Janakiraman, N. Suriya, V. Nithiya, B. Radhakrishnan, J. Ramanathan, Rengarajan Amirtharajan
The advent of rapid growth of the Internet has ascertained the hidden communication with its focus on security that has gained increasing importance. Of the various methods for establishing hidden communication, one important method is Steganography where the very existence of the data is concealed. Here, the embedding of secret data is varied by employing block based segmentation and thus, Steganography is performed. Categorization of the cover image is done with the help of a reference point and thereby, based on the variation in the MSB bit plane, the secret data is hidden. The proposed method will increase the complexity and the embedding capacity of the image and thus proving to be more efficient by the usage of utmost two or three bits for embedding the secret information in a cover pixel.
随着互联网的迅速发展,人们对通信的安全性越来越重视。在建立隐藏通信的各种方法中,一种重要的方法是隐写术,它隐藏了数据的存在。在这里,秘密数据的嵌入通过采用基于块的分割而变化,因此,隐写术被执行。在参考点的帮助下对封面图像进行分类,从而根据MSB位平面的变化隐藏秘密数据。该方法增加了图像的复杂度和嵌入容量,并证明了利用最大2位或3位在覆盖像素中嵌入秘密信息的效率。
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引用次数: 7
An improved support vector machine kernel for medical image retrieval system 一种改进的支持向量机核医学图像检索系统
M. S. Kumar, Y. S. Kumaraswamy
Digital medical images take up most of the storage space in the medical database. Digital images are in the form of X-Rays, MRI, CT. These medical images are extensively used in diagnosis and planning treatment schedule. Retrieving required medical images from the database in an efficient manner for diagnosis, research and educational purposes is essential. Image retrieval systems are used to retrieve similar images from database by inputting a query image. Image retrieval systems extract features in the image to a feature vector and use similarity measures for retrieval of images from the database. So the efficiency of the image retrieval system depends upon the feature selection and its classification. In this paper, it is proposed to implement a novel feature selection mechanism using Discrete Sine Transforms (DST) with Information Gain for feature reduction. Classification results obtained from existing Support Vector Machine (SVM) is compared with the proposed Support Vector Machine model. Results obtained show that the proposed SVM classifier outperforms conventional SVM classifier and multi layer perceptron neural network.
数字医学图像占用了医学数据库的大部分存储空间。数字图像以x光、核磁共振、CT的形式出现。这些医学图像广泛用于诊断和制定治疗方案。以有效的方式从数据库中检索诊断、研究和教育目的所需的医学图像是必不可少的。图像检索系统是通过输入查询图像从数据库中检索相似图像的系统。图像检索系统将图像中的特征提取到特征向量中,并使用相似度量从数据库中检索图像。因此,图像检索系统的效率取决于特征的选择和分类。本文提出了一种新的特征选择机制,利用带有信息增益的离散正弦变换(DST)进行特征约简。将现有支持向量机(SVM)的分类结果与提出的支持向量机模型进行了比较。结果表明,所提SVM分类器优于传统SVM分类器和多层感知器神经网络。
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引用次数: 7
Cauchy-Euler model, cellular automata simulation of the rate of recovery of the infected airway from COPD Cauchy-Euler模型,细胞自动机模拟COPD感染气道的恢复率
B. M. Vaganan, D. Pandiaraja, S. Sundar, E. E. Priya
Chronic obstructive pulmonary disease (COPD) is associated with the respiratory system. COPD is often treated with inhalers whose two major ingredients are the bronchodilators and the steroids. In this paper we mathematically model the deposition of the inhaled drug on the infected airway into Cauchy-Euler differential equation and use Visual Basic to simulate the evolution of the recovery of the inflamed airway.
慢性阻塞性肺疾病(COPD)与呼吸系统有关。慢性阻塞性肺病通常用吸入器治疗,吸入器的两种主要成分是支气管扩张剂和类固醇。本文将吸入药物在感染气道上的沉积数学建模为Cauchy-Euler微分方程,并利用Visual Basic模拟炎症气道恢复的演化过程。
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引用次数: 2
Modified backpropagation algorithm with adaptive learning rate based on differential errors and differential functional constraints 基于微分误差和微分函数约束的自适应学习率改进反向传播算法
T. Kathirvalavakumar, S. J. Subavathi
In this paper, a new adaptive learning rate algorithm to train a single hidden layer neural network is proposed. The adaptive learning rate is derived by differentiating linear and nonlinear errors and functional constraints weight decay term at hidden layer and penalty term at output layer. Since the adaptive learning rate calculation involves first order derivative of linear and nonlinear errors and second order derivatives of functional constraints, the proposed algorithm converges quickly. Simulation results show the advantages of proposed algorithm.
本文提出了一种新的自适应学习率算法来训练单隐层神经网络。通过对线性误差和非线性误差以及隐层的函数约束权衰减项和输出层的惩罚项进行微分,推导出自适应学习率。由于自适应学习率计算涉及线性和非线性误差的一阶导数和函数约束的二阶导数,因此该算法收敛速度快。仿真结果表明了该算法的优越性。
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引用次数: 4
Mammogram image segmentation using granular computing based on rough entropy 基于粗糙熵的乳房x线图像分割的颗粒计算
R. Roselin, K. Thangavel
The mammography is the most effective procedure for to diagnosis the breast cancer at an early stage. A granule is a mass of objects, in the universe of discourse, put together by indistinguishability, similarity, proximity, or functionality. In mammograms, it is quite difficult to identify the suspicious region which is a mass of calcification on the breast tissue. This paper proposes rough entropy based granular computing to segment mammogram images. The proposed method is evaluated by classification algorithms which are available in WEKA.
乳房x光检查是早期诊断乳腺癌最有效的方法。粒子是话语世界中由不可区分性、相似性、接近性或功能性组合在一起的大量物体。在乳房x光检查中,很难确定可疑区域,即乳房组织上的大量钙化。本文提出了基于粗熵的颗粒计算方法对乳房x线图像进行分割。使用WEKA中提供的分类算法对所提出的方法进行了评估。
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引用次数: 7
Image segmentation using nearest neighbor classifiers based on kernel formation for medical images 基于核形成的医学图像最近邻分类器图像分割
R. Harini, C. Chandrasekar
Image Segmentation is one of the significant elements in the part of image processing. It becomes most essential demanding factor while typically dealing with medical image segmentation. In this paper, proposal of our work comprises of formation of kernel for the medical images by performing the deviation of mapped image data within the scope of each region from the piecewise constant model and based on the regularization term based on the function of indices value of the region. The functional objective minimization is carried out by two steps minimization in image segmentation using graph cut methods, and minimization with respect to region parameters using constant point computation. Nearest neighbor classifiers are introduced to the benchmarked image data segmented portions. Among the different methods in supervised statistical pattern recognition, the nearest neighbor rule results in achieving high performance without requirement of the prior assumptions about the distributions from which the training sets are taken.
图像分割是图像处理的重要组成部分之一。在典型的医学图像分割中,它成为最重要的要求因素。在本文中,我们的工作建议是通过对每个区域范围内的映射图像数据从分段常数模型中进行偏差,并基于基于区域指标值函数的正则化项来形成医学图像的核。利用图割法对图像分割进行两步最小化,利用常点计算对区域参数进行最小化,实现了函数目标最小化。将最近邻分类器引入到基准图像数据分割部分中。在有监督统计模式识别的各种方法中,最近邻规则可以在不需要对训练集的分布进行先验假设的情况下获得较高的性能。
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引用次数: 10
Computational unfoldment of mammograms 乳房x线照片的计算展开
M. Joshi, A. Bhale
The importance of mammograms in early breast cancer detection is an accepted fact. Mammograms (either an analog x-ray film or a digital softcopy) are computationally empowered to extract significant information. Several computational techniques/algorithms process mammograms to highlight and reveal otherwise unseen features. Thus mammographic images are computationally unfolded to obtain appropriate information that can be used for further analysis. Computational analysis of mammograms is an essential tool, which is used by numerous specialists for various purposes. In this paper we review such research work reported in the literature in recent years. Our focus is in particular on computational preprocessing of mammograms. Preprocessing involves enhancement of mammographic images as well as extraction of relevant features from images. We grouped various image enhancement research approaches systematically. We also categorized various research techniques based on the types of features that are extracted and used to obtain intended results. Although mammograms are used mostly for breast cancer detection, the research is not confined to this aspect only. Several other areas that deal with mammograms are also explored by researchers including image compression, Content based Image Retrieval (CBIR) etc. Variety in these research applications is also discussed and presented in this paper.
乳房x光检查在早期乳腺癌检测中的重要性是公认的事实。乳房x光片(无论是模拟x射线胶片还是数字软拷贝)都具有计算能力,可以提取重要信息。一些计算技术/算法处理乳房x光片以突出和显示其他未见的特征。因此,乳房x线摄影图像被计算展开,以获得可用于进一步分析的适当信息。乳房x光片的计算分析是一种重要的工具,被许多专家用于各种目的。本文对近年来文献报道的此类研究工作进行了综述。我们的重点是乳房x线照片的计算预处理。预处理包括乳房x线摄影图像的增强以及从图像中提取相关特征。我们对各种图像增强的研究方法进行了系统的分类。我们还根据提取和用于获得预期结果的特征类型对各种研究技术进行了分类。虽然乳房x光检查主要用于乳腺癌的检测,但研究并不局限于这方面。研究人员还探讨了乳房x线照片处理的其他几个领域,包括图像压缩、基于内容的图像检索(CBIR)等。本文还讨论和介绍了这些研究应用的多样性。
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引用次数: 2
A new approach to reduce flooding in Grid Fisheye state routing (GFSR) protocol by propagation neighborhood 基于传播邻域的网格鱼眼状态路由(GFSR)协议减少泛洪的新方法
S. Nithya, Rekha C Chandrasekar, R. Kaniezhil
Mobile Ad-hoc Network (MANET) is the self organizing collection of mobile nodes. Ad hoc wireless networks have massive commercial and military potential because of their mobility support. Quality of Service (QoS) routing in mobile Ad-Hoc networks is challenging due to rapid change in network topology. In this paper, we focused to reduce flooding performance of the Fisheye State Routing (FSR) protocol in Grid using ns-2 network simulator under different performance metrics scenario in respect to number of Nodes and Pause-Time. The connection establishment is costly in terms of time and resource where the network is mostly affected by connection request flooding. The proposed approach presents a way to reduce flooding in MANETs. Flooding is dictated by the propagation of connection-request packets from the source to its neighborhood nodes. The proposed architecture promotes on the concept of sharing neighborhood information. The proposed approach focuses on exposing its neighborhood peer to another node that is referred to as its friend-node, which had requested/forwarded connection request. If there is a high probability for the friend node to communicate through the exposed routes, this could improve the efficacy of bandwidth utilization by reducing flooding, as the routes have been acquired, without any broadcasts. Friendship between nodes is quantized based on empirical computations and heuristic algorithms. The nodes store the neighborhood information in their cache that is periodically verified for consistency. Simulation results show the performance of this proposed method.
移动自组织网络(MANET)是移动节点的自组织集合。自组织无线网络由于其移动性支持而具有巨大的商业和军事潜力。由于网络拓扑结构的快速变化,移动Ad-Hoc网络中的服务质量(QoS)路由具有挑战性。本文利用ns-2网络模拟器,在不同的节点数和暂停时间性能指标场景下,重点研究降低网格中鱼眼状态路由(FSR)协议的泛流性能。连接的建立在时间和资源上都是昂贵的,而网络主要受到连接请求泛滥的影响。该方法提出了一种减少manet中洪水的方法。泛洪是由连接请求数据包从源到其邻近节点的传播决定的。所提出的建筑促进了共享邻里信息的概念。所建议的方法侧重于将其邻居对等体暴露给另一个节点,该节点被称为其朋友节点,该节点已请求/转发连接请求。如果朋友节点通过暴露的路由进行通信的概率很高,则可以通过减少泛洪来提高带宽利用率,因为路由已经获得,而无需任何广播。节点间的友谊基于经验计算和启发式算法进行量化。节点将邻居信息存储在缓存中,并定期进行一致性验证。仿真结果表明了该方法的有效性。
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引用次数: 3
Geometric feature based face-sketch recognition 基于几何特征的人脸素描识别
S. Pramanik, D. Bhattacharjee
This paper presents a novel facial sketch image or face-sketch recognition approach based on facial feature extraction. To recognize a face-sketch, we have concentrated on a set of geometric face features like eyes, nose, eyebrows, lips, etc and their length and width ratio because it is difficult to match photos and sketches because they belong to two different modalities. In this system, first the facial features/components from training images are extracted, then ratios of length, width, and area etc. are calculated and those are stored as feature vectors for individual images. After that the mean feature vectors are computed and subtracted from each feature vector for centering of the feature vectors. In the next phase, feature vector for the incoming probe face-sketch is also computed in similar fashion. Here, K-NN classifier is used to recognize probe face-sketch. It is experimentally verified that the proposed method is robust against faces are in a frontal pose, with normal lighting and neutral expression and have no occlusions. The experiment has been conducted with 80 male and female face images from different face databases. It has useful applications for both law enforcement and digital entertainment.
提出了一种基于人脸特征提取的人脸素描图像或人脸素描识别方法。为了识别人脸草图,我们集中研究了一组几何面部特征,如眼睛、鼻子、眉毛、嘴唇等,以及它们的长宽比,因为照片和草图属于两种不同的模态,很难匹配。在该系统中,首先从训练图像中提取面部特征/成分,然后计算长度、宽度和面积等的比率,并将其存储为单个图像的特征向量。然后计算平均特征向量,并从每个特征向量中减去特征向量的中心。在下一阶段,也以类似的方式计算输入的探针面部草图的特征向量。本文采用K-NN分类器对探针人脸进行识别。实验验证了该方法对正面、光照正常、表情中性、无遮挡的人脸具有较强的鲁棒性。该实验使用了来自不同面部数据库的80张男性和女性面部图像。它对执法和数字娱乐都有很好的应用。
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引用次数: 34
Segregating unique service object from multi-web sources for effective visualization 从多个web源中分离出唯一的服务对象,以实现有效的可视化
S. Jayanthi, S. Prema
Web services describe a standardized way of integrating Web-based applications using the XML (Extensible Markup Language), SOAP (Simple Object Access Protocol), WSDL and UDDI (Universal Description Discovery and Integration) open standards over an Internet protocol backbone. WSDL (Web Service Definition Language) is used for describing the available services. The dynamic approach starts with crawling on the Web for Web Services, simultaneously gathering the WSDL service descriptions and related documents. The Web APIs provide the methodology for building unique service objects from multiple web resources. In this semantic search engine, if the web user gets satisfied with the description they can crawl into the webpage, otherwise they can shift to another link. This query enhancement process is exploited to learn useful information that helps to generate related queries. In this research work the add-on is automatically generated when compared with the existing system. Add-on is programs that are integrated into the browser application, usually providing additional functionality. Finally this work gives an overview of how to segregate the unique service object (USO) using Bookshelf Data Structure from web resources and use it to semantically annotate the resulting services in visual mode.
Web服务描述了一种使用XML(可扩展标记语言)、SOAP(简单对象访问协议)、WSDL和UDDI(通用描述发现和集成)开放标准在Internet协议主干上集成基于Web的应用程序的标准化方法。WSDL (Web服务定义语言)用于描述可用的服务。动态方法首先在Web上搜索Web服务,同时收集WSDL服务描述和相关文档。Web api提供了从多个Web资源构建唯一服务对象的方法。在这个语义搜索引擎中,如果网络用户对描述感到满意,他们可以爬进网页,否则他们可以转移到另一个链接。该查询增强过程用于学习有助于生成相关查询的有用信息。在本研究中,通过与现有系统的比较,自动生成附加组件。插件是集成到浏览器应用程序中的程序,通常提供附加功能。最后,本文概述了如何使用书架数据结构从web资源中分离出唯一服务对象(USO),并使用它以可视化的方式对结果服务进行语义注释。
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引用次数: 0
期刊
International Conference on Pattern Recognition, Informatics and Medical Engineering (PRIME-2012)
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