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2017 8th International Conference on Computing, Communication and Networking Technologies (ICCCNT)最新文献

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Human-fall detection from an indoor video surveillance 基于室内视频监控的人体坠落检测
R. Tripathi, S. C. Agrawal, A. S. Jalal
In this paper, we present a human fall detection method from visual surveillance. In first step, background subtraction is performed using Improved GMM to find the foreground objects. In second step, contour based human template matching is applied to categorize the human or non-human object. It helps to detect fall incident by providing sudden change in generated score after matching. Height-width ratio is computed in third step to decide whether the human shape is changed or not. In fourth step, distance between top and mid centre of rectangle covering human is computed, if it is less than a certain threshold, then human fall is confirmed. Finally, if inactive pose of human is continued till 100 consecutive frames, then an alarm is generated to alert the people at home to provide treatment on time. Experiments have been performed on 21 video sequences having different usual and unusual fall incidents. Experimental results show that proposed system works well efficiently and effectively in real-time for recognizing human fall.
本文提出了一种基于视觉监控的人体跌倒检测方法。第一步,使用改进的GMM进行背景减法以找到前景目标。第二步,采用基于轮廓的人体模板匹配方法对人体或非人体目标进行分类。它通过提供匹配后生成分数的突然变化来帮助检测跌倒事件。第三步计算高宽比,决定是否改变人体形状。第四步,计算覆盖人体的矩形顶部与中间中心的距离,如果距离小于某一阈值,则判定人体摔倒。最后,如果人体的不活动姿势持续到连续100帧,则会产生警报,提醒家中的人及时提供治疗。本文对21个视频序列进行了不同寻常和不寻常跌落事件的实验。实验结果表明,该系统能够有效地实时识别人体跌倒。
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引用次数: 34
Improved OCR based automatic vehicle number plate recognition using features trained neural network 基于特征训练神经网络的改进OCR车牌自动识别
Bhavin Kakani, Divyang Gandhi, S. Jani
Significant research and development of algorithms in intelligent transportation has grabbed more attention in recent years. An automated, fast, accurate and robust vehicle plate recognition system has become need for traffic control and law enforcement of traffic regulations; and the solution is ANPR. This paper is dedicated on an improved technique of OCR based license plate recognition using neural network trained dataset of object features. A blended algorithm for recognition of license plate is proposed and is compared with existing methods for improve accuracy. The whole system can be categorized under three major modules, namely License Plate Localization, Plate Character Segmentation, and Plate Character Recognition. The system is simulated on 300 national and international motor vehicle LP images and results obtained justifies the main requirement.
近年来,智能交通算法的重大研究和发展受到越来越多的关注。一个自动化、快速、准确和强大的车牌识别系统已成为交通管制和交通法规执法的需要;解决方案是ANPR。本文研究了一种改进的基于OCR的车牌识别技术,该技术采用神经网络训练的目标特征数据集。提出了一种混合车牌识别算法,并与现有方法进行了比较,提高了识别精度。整个系统可分为车牌定位、车牌字符分割和车牌字符识别三大模块。该系统在300张国内外机动车LP图像上进行了仿真,仿真结果满足了系统的主要要求。
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引用次数: 47
A review paper on digital image forgery detection techniques 数字图像伪造检测技术综述
N. Gill, Ruhi Garg, Er. Amit Doegar
These days digital image forgery has turned out to be unsophisticated because of capable PCs, propelled image editing softwares and high resolution capturing gadgets. Checking the respectability of pictures and identifying hints of altering without requiring additional pre-embedded information of the picture or pre-installed watermarks are essential examine field. An endeavor is prepared to review the current improvements in the research area of advanced picture fraud detection and comprehensive reference index has been exhibited on passive methods for forgery identification. Passive techniques donot require pre-embedded information in the image. Several image forgery detection techniques are arranged first and after that their summed up organization is produced. Author will review the various image forgery detection techniques along with their results and also compare the various different techniques based on their accuracy.
如今,由于有了功能强大的个人电脑、先进的图像编辑软件和高分辨率的拍摄设备,数字图像伪造变得并不复杂。在不需要额外的图像预嵌入信息或预安装水印的情况下,检查图像的可靠性和识别改变的线索是必不可少的检测领域。本文综述了目前先进图像欺诈检测领域的研究进展,并对被动识别图像伪造的方法进行了综合评述。被动技术不需要在图像中预先嵌入信息。首先对几种图像伪造检测技术进行整理,然后对其进行归纳。作者将回顾各种图像伪造检测技术及其结果,并根据其准确性比较各种不同的技术。
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引用次数: 30
Identification of influential instances in temporal networks 识别时间网络中有影响的实例
G. Swetha, Rajeshreddy Datla
Temporal social network exhibits evolution of a network with different scales of dynamics over a period of time. Detection of community along with its strength is a challenging task in these time varying networks. The impact of the incremental changes in the network over time on community strength must be analyzed to capture its behavior. In this paper, we extended the notion of community detection and its strength of the static network to the temporal social network. A methodology is proposed to study the affect of the incremental links on strength of the detected communities within the network. It also includes a method to identify a set of instances during which information flow is effective by observing the strength pattern of the detected communities. It also demonstrates the utilization of the precise temporal information associated with each interaction. Proposed approach is applied on an email network and identified the instances over which the impact of the incremental links is observed.
时间社会网络在一段时间内呈现出不同尺度的动态网络演化。在这些时变网络中,社区及其强度的检测是一项具有挑战性的任务。随着时间的推移,网络中的增量变化对社区力量的影响必须进行分析,以捕捉其行为。在本文中,我们将社区检测的概念及其静态网络的强度扩展到时间社会网络。提出了一种方法来研究增量链路对网络中检测到的社团强度的影响。它还包括一种方法,通过观察检测到的社区的强度模式来识别一组实例,在这些实例中信息流是有效的。它还演示了与每个交互相关的精确时间信息的使用。将所提出的方法应用于电子邮件网络,并确定了观察到增量链接影响的实例。
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引用次数: 2
Implementation of remote motion controller with visual feedback 具有视觉反馈的远程运动控制器的实现
M. S. Sravan, Swetha Moolam, Sruthi Sreepathi, Priyanka Kokil
In this paper, implementation of a remote motion controller with visual feedback on an android device with Wi-Fi communication protocol is proposed. Control algorithm incorporates the real-time data available from the camera, which is used as feedback, which in turn, greatly improves efficiency. This application can be implemented on any Android device (e.g. smart phone) with a built-in camera, making it extremely compact, economical and user-friendly when compared to existing similar controllers. It also gives the flexibility to control the mobile robot via the internet.
本文提出了一种在基于Wi-Fi通信协议的android设备上实现具有视觉反馈功能的远程运动控制器。控制算法结合了摄像机的实时数据作为反馈,从而大大提高了效率。这个应用程序可以在任何Android设备(例如智能手机)上实现内置摄像头,使其与现有的类似控制器相比,非常紧凑,经济和用户友好。它还提供了通过互联网控制移动机器人的灵活性。
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引用次数: 0
Casting online votes: To predict offline results using sentiment analysis by machine learning classifiers 在线投票:通过机器学习分类器使用情感分析来预测离线结果
P. Juneja, Uma Ojha
In today's world, Social Networking website like Twitter, Facebook, Instagram, etc. plays a very significant role. Twitter is a social networking website which provides loads of data that can be used for various purposes such as Sentiment Analysis for predictions, marketing, elections, etc. The objective of this research is to classify twitter data into sentiments (positive or negative) by using different supervised machine learning classifiers to predict the Delhi Corporation Elections results and to identify the most accurate machine learning classifier. The research highlights the performance of different classifiers on the twitter dataset related to political parties. Experiments show that Multinomial Naïve Bayes classifier is the most accurate sentiment predictors with 78%.
在当今世界,像Twitter, Facebook, Instagram等社交网站扮演着非常重要的角色。Twitter是一个社交网站,它提供了大量的数据,可以用于各种目的,如预测、营销、选举等的情感分析。本研究的目的是通过使用不同的监督机器学习分类器来预测德里公司选举结果,并确定最准确的机器学习分类器,将twitter数据分类为情绪(积极或消极)。该研究强调了不同分类器在与政党相关的twitter数据集上的表现。实验表明,多项式Naïve贝叶斯分类器是最准确的情绪预测器,准确率为78%。
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引用次数: 14
High linearity and high gain bulk driven down conversion mixer for UWB system 用于超宽带系统的高线性高增益批量驱动下变频混频器
G. Bansal, Abhay Chaturvedi, Manish Kumar
A high gain and high linear CMOS down-conversion mixer with improved noise figure is presented for Ultra-wideband (UWB) technology. The proposed mixer is designed and simulated using 0.18μm CMOS technology for 3.432 GHz RF input frequency, 3.696 GHz LO frequency and 264 MHz output IF frequency using Key sight Advanced Design System (ADS) tool. The double balanced bulk driven Gilbert mixer architecture is used as a core in proposed mixer. LC Differential matching is used both at the LO switching stages and RF trans conductance stage with R-L-C load as output stage to enhance the conversion gain of the mixer. The bulk driven technique is used for the low power consumption. The proposed mixer provides IIP3 of 20dBm, maximum conversion gain of 10.060 dB, P1 dB of −20.98 dBm and double side-band noise figure (DSB NF) of 0.58 dB. The mixer operates at DC supply of 3.1V with power consumption of 2 mW.
针对超宽带(UWB)技术,提出了一种改进噪声系数的高增益、高线性CMOS下变频混频器。采用0.18μm CMOS技术,在3.432 GHz射频输入频率、3.696 GHz LO频率和264 MHz中频输出频率下,利用Key sight Advanced Design System (ADS)工具对该混频器进行了设计和仿真。该混合器以双平衡体驱动吉尔伯特混合器结构为核心。LC差分匹配在LO开关级和RF跨导级均使用,以R-L-C负载为输出级,以提高混频器的转换增益。采用体积驱动技术,功耗低。该混频器的IIP3为20dBm,最大转换增益为10.060 dB, P1 dB为- 20.98 dBm,双频带噪声系数(DSB NF)为0.58 dB。混合器在3.1V直流电源下运行,功耗为2 mW。
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引用次数: 1
Optimal phasor measuring unit placement by binary particle swarm optimization 基于二元粒子群算法的相量测量单元优化配置
S. Kumari, Pratima Walde, Asif Iqbal, A. Tyagi
This work presents a technique for the optimal Phasor Measurement Units (PMUs) placement for complete power network observability with number of PMUs as minimum as possible. Due to the high installation cost of PMUs it is necessary to make the system fully observable with minimum PMUs. A binary particle swarm optimization method (BPSO) is implemented on IEEE standard system and Puducherry 17 bus system. The BPSO method of Optimum PMU Placement can therefore be applied to any power system to make the system fully observable with different aspects of the power system. The obtained results are compared with other techniques and it is found that Adaptive GA, GILP, SA, TS, BSA and the proposed BPSO method was found better.
本文提出了一种以尽可能少的相量测量单元(pmu)数量实现完全电网可观测性的最佳相量测量单元(pmu)布置技术。由于pmu的安装成本高,有必要在最小的pmu下使系统完全可观测。在IEEE标准系统和Puducherry 17总线系统上实现了二粒子群优化方法(BPSO)。因此,PMU最优放置的BPSO方法可以应用于任何电力系统,使系统在电力系统的不同方面完全可观察。将得到的结果与其他方法进行比较,发现自适应遗传算法、GILP、SA、TS、BSA和所提出的BPSO方法效果更好。
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引用次数: 4
VXLAN and EVPN for data center network transformation 用于数据中心网络改造的VXLAN和EVPN
T. Singh, Varun Jain, G. Babu
Data Center architectures are continually evolving to address the growing need to handle thousands of servers, Exabyte of storage, Tbps of traffic and multi-tenant environment. It has to be more flexible & scalable to cater to the need of Cloud services to provide Scalable compute, storage & network, Efficient resource utilization, Cost effectiveness, Reliable service and Security. The resources are interconnected through routers and switches that cater the multi-tenant virtual networking need within and across Data Center for which the WAN connectivity should be transparent in the Layer 2. At present the DC Interconnect (DCI) are through IP/MPLS Virtual Private Network (VPN) over which the L2 transparency is achieved majorly by the technologies like VPLS & EoMPLS. This paper focuses majorly on the latest evolving technology to extend VXLAN across DCs with EVPN control plane and concludes with its benefits like faster convergence, efficient, flexible & scalable DCI realized by the implementations of MP-BGP which optimizes unicast flooding, MAC Address purging & apply fine grain policy.
数据中心架构正在不断发展,以满足处理数千台服务器、Exabyte存储、Tbps流量和多租户环境的需求。它必须更加灵活和可扩展,以满足云服务的需求,提供可扩展的计算,存储和网络,高效的资源利用,成本效益,可靠的服务和安全性。资源通过路由器和交换机相互连接,这些路由器和交换机满足数据中心内部和跨数据中心的多租户虚拟网络需求,因此广域网连接在第2层中应该是透明的。目前,数据中心互连(DCI)是通过IP/MPLS虚拟专用网(VPN)实现的,其L2透明度主要通过VPLS和EoMPLS等技术实现。本文主要关注最新发展的技术,通过EVPN控制平面将VXLAN扩展到数据中心,并总结其优点,如更快的收敛,高效,灵活和可扩展的DCI,通过MP-BGP实现,优化单播洪水,MAC地址清除和应用细粒度策略。
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引用次数: 2
Identification and evaluation of performance parameters for RE-BAR bending training simulator RE-BAR弯曲训练模拟器性能参数辨识与评价
Balu M. Menon, P. Aswathi, S. Deepu, R. R. Bhavani
Construction rebars (steel concrete reinforcing bars) are used to provide structural strength and reinforcement for the concrete structure. This requires the bending and cutting of the rebar to proper size before they can be used for construction. A novel haptic based barbending simulator has been devised which enables the trainees to learn and improve the construction rebar bending skill in a safe and controlled way. With its limited assessment and reporting features, the computerised virtual training simulator proves to be effective in training. Adding the features like personalized skill tracking and predictive performance modeling holds even more potential in supporting the training program. Towards this goal, a user performance modeling needs to be done which includes an initial study on performance parameters, assessment criteria and data collection before remodeling the simulator. This paper presents a study on the performance parameters for the bar bending simulator and also evaluates its effectiveness in modeling expert and novice performances. During this study we also hypothesize the parameters that can distinguish an expert and novice performances which was validated with 2 classification techniques — Support vector machine and J48 Decision tree. While revealing the classification rules J48 algorithm provides 78.94% accuracy where as SVM provides 94.737% accuracy. The study also shows that the 2 performance parameters force applied over time and bend angle accuracy are effective to distinguish expert and novice level of expertize for the construction rebar bending skill.
建筑钢筋(钢-混凝土钢筋)用于为混凝土结构提供结构强度和配筋。这就需要将钢筋弯曲和切割到合适的尺寸,然后才能用于施工。设计了一种新型的基于触觉的钢筋弯曲模拟器,使学员能够在安全可控的情况下学习和提高钢筋弯曲技术。尽管计算机化虚拟训练模拟器的评估和报告功能有限,但它在训练中被证明是有效的。添加个性化技能跟踪和预测性能建模等功能,在支持培训计划方面具有更大的潜力。为此,需要进行用户性能建模,包括对性能参数、评估标准和数据收集的初步研究,然后再对模拟器进行改造。本文对棒材弯曲模拟器的性能参数进行了研究,并对其在模拟专家和新手性能方面的有效性进行了评价。在本研究中,我们还假设了能够区分专家和新手性能的参数,并使用支持向量机和J48决策树两种分类技术进行了验证。在揭示分类规则的同时,J48算法的准确率为78.94%,SVM的准确率为94.737%。研究还表明,施加力随时间的变化和弯曲角度精度这两个性能参数是区分施工钢筋弯曲技术专家和新手水平的有效指标。
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引用次数: 4
期刊
2017 8th International Conference on Computing, Communication and Networking Technologies (ICCCNT)
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