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2017 International Conference on Computer, Communication and Signal Processing (ICCCSP)最新文献

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Image defogging using enhancement techniques 图像去雾使用增强技术
N. Sangeetha, K. Anusudha
Digital image processing techniques are commonly used to enhance an image to extract the useful information from it. Images acquired by a visual system are seriously degraded under hazy and foggy weather, which will affect the detection, tracking, and recognition of targets. The degraded images have reduced contrast and the local information is lost. Thus, restoring the true scene from such a foggy image is of significance. The paper focuses on enhancing the contrast and visibility of the foggy image by using various enhancement techniques. The performance of the proposed techniques are analyzed based on standard parameters.
数字图像处理技术通常用于增强图像以从中提取有用信息。在雾霾天气下,视觉系统获取的图像质量严重下降,影响目标的检测、跟踪和识别。退化后的图像对比度降低,局部信息丢失。因此,从如此模糊的图像中还原真实场景具有重要意义。本文重点研究了利用各种增强技术增强雾天图像的对比度和可见度。基于标准参数对所提技术的性能进行了分析。
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引用次数: 8
Survey of pre-processing techniques for mining big data 挖掘大数据的预处理技术综述
Jayaram Hariharakrishnan, S. Mohanavalli, Srividya, K. Kumar
Big Data analytics has become important as many administrations, organizations, and companies both public and private have been collecting and analyzing huge amounts of domain-specific information, which can contain useful information about problems such as national intelligence, cyber security, fraud detection, marketing, and medical informatics. With more and more data being generated the ever dynamic size, scale, diversity, and complexity has made the requirement for newer architectures, techniques, algorithms, and analytics to manage it and extract value from the data collected. The progress and innovation is no longer hindered by the ability to collect data but, by the ability to manage, analyze, summarize, visualize, and discover knowledge from the collected data in a timely manner and in a scalable fashion as well as a credible clean and noise free data sets. This paper mainly makes an attempt to understand the different problems to solve in the processes of data preprocessing, to also familiarize with the problems related to cleaning data, know the problems to apply data cleaning and noise removal techniques for big data analytics and to mitigate the imperfect data, together with some techniques to solve them and also to identify the shortcomings in the existing methods of the reduction techniques in the necessary respective areas of application and also to identify the current big data preprocessing proposal's effectiveness to various data sets.
随着许多公共和私营部门、组织和公司收集和分析大量特定领域的信息,大数据分析变得越来越重要,这些信息可能包含有关国家情报、网络安全、欺诈检测、营销和医疗信息等问题的有用信息。随着越来越多的数据被生成,其动态大小、规模、多样性和复杂性要求对新的体系结构、技术、算法和分析进行管理,并从收集的数据中提取价值。进步和创新不再受到收集数据能力的阻碍,而是受到及时管理、分析、总结、可视化和从收集的数据中发现知识的能力的阻碍,并以可扩展的方式以及可靠、干净和无噪声的数据集。本文主要试图了解数据预处理过程中需要解决的不同问题,熟悉数据清洗的相关问题,了解将数据清洗和去噪技术应用于大数据分析以及缓解不完美数据的问题。结合一些技术来解决这些问题,并找出现有约简技术在各自必要的应用领域中的不足,同时也找出当前大数据预处理方案对各种数据集的有效性。
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引用次数: 24
A compact full mode SIW UWB Band pass filter using novel input/output transmission-line-stnicture 一种紧凑的全模式SIW超宽带带通滤波器,采用新颖的输入/输出传输线结构
H. Habiba, T. Prashanth, S. Keerthipriya, L. N. A. Sayeed, R. Sandhya
A compact fullmode SIW UWBband pass filter using novel input/output transmission-line-structure is proposed in this paper. This wide band SIW resonator can be evolved from a conventional SIW transmission lineor a two-conductor transmission line. This filter has wide passband of 3–8GHz with return loss of nearly −20dB.
提出了一种采用新型输入/输出传输线结构的紧凑全模SIW超宽带通滤波器。这种宽带SIW谐振器可以从传统的SIW传输线或双导体传输线发展而来。该滤波器具有3-8GHz的宽通带,回波损耗接近- 20dB。
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引用次数: 1
A survey on extractive text summarization 摘要文本摘要研究综述
N. Moratanch, S. Chitrakala
Text Summarization is the process of obtaining salient information from an authentic text document. In this technique, the extracted information is achieved as a summarized report and conferred as a concise summary to the user. It is very crucial for humans to understand and to describe the content of the text. Text Summarization techniques are classified into abstractive and extractive summarization. The extractive summarization technique focuses on choosing how paragraphs, important sentences, etc produces the original documents in precise form. The implication of sentences is determined based on linguistic and statistical features. In this work, a comprehensive review of extractive text summarization process methods has been ascertained. In this paper, the various techniques, populous benchmarking datasets and challenges of extractive summarization have been reviewed. This paper interprets extractive text summarization methods with a less redundant summary, highly adhesive, coherent and depth information.
摘要是指从真实文本文档中获取重要信息的过程。在这种技术中,提取的信息是作为摘要报告实现的,并作为简洁的摘要传递给用户。对于人类来说,理解和描述文本的内容是非常重要的。摘要技术分为抽象摘要和抽取摘要。摘要提取技术侧重于选择段落、重要句子等如何以精确的形式产生原始文档。句子的含义是根据语言和统计特征来确定的。在这项工作中,全面回顾了提取文本摘要的处理方法已经确定。本文综述了提取摘要的各种技术、大量基准数据集和挑战。本文阐述了摘要冗余少、信息粘连性强、连贯性强、信息深度大的抽取式文本摘要方法。
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引用次数: 149
Image retrieval based on chrominance feature of the HMMD color space 基于HMMD色彩空间色度特征的图像检索
L. Pavithra, T. Sharmila
This paper proposes a new chrominance feature extraction method in HMMD color space. Image dependent multi-level thresholding is performed in the HMMD color space to obtain the 64-IeveI quantized images. The occurrence count of each color pixel represents the color information of those quantized images. This technique is tested over Wang's database of 10 different category images. The distance measure of this feature between the query and database image are calculated. Then, the proposed method performance is evaluated using average precision and recall. Moreover, the proposed method is a benchmark against the state-of-the-art color feature extraction methods and gives approximately 6.3% to 18.05% and 7.54% to 14.52 % high precision and recall than the conventional techniques.
提出了一种在HMMD色彩空间中提取色彩特征的新方法。在HMMD色彩空间中进行图像依赖的多级阈值分割,得到64级量化图像。每个颜色像素的出现次数代表这些量化图像的颜色信息。这项技术在Wang的10个不同类别图像的数据库上进行了测试。计算该特征在查询和数据库图像之间的距离度量。然后,用平均查准率和查全率对该方法的性能进行了评价。此外,该方法是最先进的颜色特征提取方法的基准,与传统技术相比,其精度和召回率分别为6.3% ~ 18.05%和7.54% ~ 14.52%。
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引用次数: 0
Facial recognition using histogram of gradients and support vector machines 基于直方图梯度和支持向量机的人脸识别
J. Julina, T. Sharmila
Face recognition is widely used in computer vision and in many other biometric applications where security is a major concern. The most common problem in recognizing a face arises due to pose variations, different illumination conditions and so on. The main focus of this paper is to recognize whether a given face input corresponds to a registered person in the database. Face recognition is done using Histogram of Oriented Gradients (HOG) technique in AT & T database with an inclusion of a real time subject to evaluate the performance of the algorithm. The feature vectors generated by HOG descriptor are used to train Support Vector Machines (SVM) and results are verified against a given test input. The proposed method checks whether a test image in different pose and lighting conditions is matched correctly with trained images of the facial database. The results of the proposed approach show minimal false positives and improved detection accuracy.
人脸识别广泛应用于计算机视觉和许多其他生物识别应用中,其中安全性是一个主要问题。人脸识别中最常见的问题是由于姿势变化、不同的光照条件等引起的。本文的主要研究重点是识别给定的人脸输入是否与数据库中的注册人员相对应。在at&t数据库中使用定向梯度直方图(HOG)技术进行人脸识别,并包含一个实时对象来评估算法的性能。HOG描述符生成的特征向量用于训练支持向量机(SVM),并根据给定的测试输入验证结果。该方法检查不同姿态和光照条件下的测试图像与人脸数据库的训练图像是否正确匹配。结果表明,该方法具有最小的误报率和更高的检测精度。
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引用次数: 23
Performance analysis of Zigbee WDSN using clustering protocol and STR algorithm 基于聚类协议和STR算法的Zigbee WDSN性能分析
R. M. Brigitta, P. Samundiswary
In recent years, wireless networking plays a prominent role because of its easy installation and flexibility. Among the various wireless domains, Zigbee based Wireless Dynamic Sensor Networks (WDSN) pose a good support to the dynamics that arise when the nodes are induced with mobility. In the Zigbee based Wireless Dynamic Sensor Network (WDSN), major consideration is on utilizing the energy efficiently among the mobile nodes. Various techniques are used to attain energy efficiency in Zigbee WDSN. Among them, clustering the nodes is one of the best methods, since they aim at reducing the energy dissipation and increasing the life span of the network. Hence, in this paper, the performance of Zigbee WDSN using clustering scheme is done by considering the nodes with mobility and compared with performance of Zigbee WDSN using non clustering technique. The proposed work is summarized as follows: the network is deployed as clusters and the remaining energy of the node is determined by utilizing clustering protocol. In each cluster, the clustering protocol opts for the node with the maximum remaining energy as the head of that cluster. Then STR algorithm is utilized to route the sensed data from the member nodes to the cluster head. Hence, the clustering technique and STR, route the information through the shortest path paving the way for enhanced average residual energy and Packet Delivery Ratio (PDR). The simulations are done by using ns2 and performance metrics such as average residual energy and PDR are computed and analyzed for non clustered and clustered method.
近年来,无线网络以其易于安装和灵活的特点在网络通信中占有突出的地位。在各种无线领域中,基于Zigbee的无线动态传感器网络(WDSN)可以很好地支持节点移动引起的动态问题。在基于Zigbee的无线动态传感器网络(WDSN)中,主要考虑的是如何有效地利用移动节点之间的能量。在Zigbee WDSN中,使用了各种技术来实现能源效率。其中,节点聚类是最好的方法之一,因为它旨在减少能量消耗,增加网络的寿命。因此,本文通过考虑可移动性节点对采用聚类方案的Zigbee WDSN进行性能分析,并与采用非聚类技术的Zigbee WDSN进行性能比较。提出的工作总结如下:以集群方式部署网络,利用集群协议确定节点的剩余能量。在每个集群中,集群协议选择剩余能量最大的节点作为该集群的头部。然后利用STR算法将感知数据从成员节点路由到簇头。因此,聚类技术和STR通过最短路径路由信息,为提高平均剩余能量和包投递率(PDR)铺平了道路。采用ns2进行仿真,计算分析了非聚类和聚类方法的平均剩余能量和PDR等性能指标。
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引用次数: 0
EM algorithm based intervertebral disc segmentation on MR images 基于EM算法的MR图像椎间盘分割
A. Beulah, T. Sharmila
Image segmentation is well known in partitioning a digital image into several segments. Recent days lower back pain in human being increases and so the lumber spine pathology detection becomes a predominant research area in Computer Aided Diagnosis (CAD) system. In the process of lumbar spine pathology detection, the segmentation of the Intervertebral Disc (IVD) is the major step as it identifies the IVDs or the boundaries of the IVDs either normal or abnormal in images. When the axial or the sagittal View of lumbar spine MR image is given as input, this proposed work segments the IVD in both the axial and sagittal views. The segmentation of IVD is a four stage process. First, Expectation-Maximization (EM) segmentation is performed on the MR Image. EM segmentation yields an advantage over K-means with the case of the size of clustering. The second stage is to carry out the morphological operators and third, apply edge detection method and obtain the edges. The final stage is to remove unwanted objects from the obtained output image. If this proposed segmentation is utilized as part of the CAD, the experts will be benefited for localizing the IVD and to diagnose the IVD disease.
众所周知,图像分割是将数字图像分割成几个部分。近年来,人们腰痛的症状日益严重,腰椎病理检测成为计算机辅助诊断(CAD)系统的研究热点。在腰椎病理检测过程中,椎间盘分割是识别图像中正常或异常的椎间盘或其边界的重要步骤。当给出腰椎MR图像的轴位或矢状位作为输入时,该工作将轴位和矢状位的IVD分段。IVD的分割分为四个阶段。首先,对MR图像进行期望最大化(EM)分割。EM分割在聚类大小的情况下比K-means有优势。第二阶段进行形态学运算,第三阶段应用边缘检测方法获取边缘。最后一步是从得到的输出图像中去除不需要的物体。如果将所提出的分割作为CAD的一部分,将有利于专家定位IVD和诊断IVD疾病。
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引用次数: 4
Design patterns for multiplayer card games 多人纸牌游戏的设计模式
D. V. Ranganathan, R. Vishal, V. Krishnamurthy, Prashant Mahesh, Roopeshwar Devarajan
Many multiplayer card games have interesting structures that can be exploited while designing a computer application to simulate these games. Critical features that most games have are that they are turn based and have common data types like Cards and Decks. This paper aims to demonstrate certain design patterns for implementing multiplayer card games that are capable of scaling well and are easily understandable and maintainable. Two card games ‘Ace’ and ‘Literature’ were developed from which the patterns were extracted. The patterns explained in this paper, can be applied to any turn-based multiplayer card game and in some cases, to any multiplayer game in general. The two patterns discussed in this paper are represented in small caps to have better understanding.
许多多人纸牌游戏具有有趣的结构,可以在设计模拟这些游戏的计算机应用程序时加以利用。大多数游戏的关键功能都是基于回合制,并拥有像Cards和deck这样的常见数据类型。本文旨在展示执行多人纸牌游戏的某些设计模式,这些模式能够很好地扩展,并且易于理解和维护。开发了两种纸牌游戏“Ace”和“Literature”,从中提取了模式。本文中解释的模式可以应用于任何回合制多人卡牌游戏,在某些情况下,也可以应用于任何多人游戏。为了便于理解,本文讨论的两种模式用小写字母表示。
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引用次数: 1
Edge based eye-blink detection for computer vision syndrome 基于边缘的计算机视觉综合征眨眼检测
J. Jennifer, T. Sharmila
Living in an information age the whole earth is a small globe in our hands with the advancements of computers, smartphones etc. The usage of computers in our day-to-day activities has increased enormously leading to both positive and negative effects in our lives. The negative effects are related to health problems such as Computer Vision Syndrome (CVS) etc. Prolonged use of computers would lead to a significant reduction of spontaneous eye blink rate due to the high visual demand of the screen and concentration on the work. The proposed system develops a prototype using blink as a solution to prevent CVS. The first part of the work captures video frames using web-camera mounted on the computer or laptop. These frames are processed dynamically by cropping only the eyes. The algorithms performed on the eye-frames are direct pixel count, gradient. Canny edge and Laplacian of Gaussian (LoG). These determine the eye-status based on the threshold value and the proposed idea, the difference between upper and lower eye frames. Various experiments are done and their algorithms are compared and concluded that the proposed algorithm yields 99.95% accuracy.
生活在信息时代,随着电脑、智能手机等的进步,整个地球在我们手中变成了一个小球体。计算机在我们日常活动中的使用已经大大增加,给我们的生活带来了积极和消极的影响。负面影响与健康问题有关,如计算机视觉综合症(CVS)等。长时间使用电脑会导致自发眨眼率显著降低,这是由于对屏幕的高视觉要求和对工作的集中。该系统开发了一个原型,使用闪烁作为防止CVS的解决方案。作品的第一部分使用安装在电脑或笔记本电脑上的网络摄像头捕捉视频帧。这些帧通过只裁剪眼睛来动态处理。在眼框上执行的算法是直接像素计数、梯度。Canny边和拉普拉斯高斯边(LoG)。这些方法基于阈值和所提出的思想,即上下眼框之间的差异来确定眼睛状态。实验结果表明,本文提出的算法准确率达到99.95%。
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引用次数: 8
期刊
2017 International Conference on Computer, Communication and Signal Processing (ICCCSP)
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