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2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)最新文献

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Design of A Ring Oscillator Based PUF with Enhanced Challenge Response pair and Improved Reliability 基于增强挑战响应对和提高可靠性的环形振荡器PUF设计
Suchismita Batabyal, A. A. Bazil Rai
Hardware security is of utmost importance nowadays, with the increased number of threats like modelling attacks, reverse engineering and extracting secret information from the IC's. A physical unclonable function (PUF) is a promising solution to many security related problems and can be used to produce devices or IC's that are unique and resistant to cloning attempts. A PUF is like a fingerprint for a particular physical object, it is based on many manufacturing mismatches that occur during IC fabrication or the propagation delays that are present in the wires and interconnects. Various kinds of PUF designs are possible like ring oscillator, SRAM and arbiter PUF's etc. A Ring oscillator based PUF is designed based on the delays present in the wires that leads to different frequency of oscillation and can form the basis for key generation. They are also easily implemented in field programmable gate array (FPGA).In this paper we propose a ring oscillator based design with enhanced challenge response pair (CRP) with improved reliability. Our design has more number of challenge response pair since all the possible frequency comparisons of the Ro are done. Also it provides better reliability because our approach relies on relative values and not absolute value, it incorporates the difference between the highest frequency in the present comparison and the maximum of all the measured frequencies, under varying environmental conditions even if the absolute value changes, the relative value will never change.
如今,随着建模攻击、逆向工程和从IC中提取秘密信息等威胁的增加,硬件安全至关重要。物理不可克隆功能(PUF)是解决许多安全相关问题的一种很有前途的解决方案,可用于生产独特且可抵抗克隆尝试的设备或IC。PUF就像一个特定物理对象的指纹,它是基于在IC制造过程中发生的许多制造不匹配或存在于电线和互连中的传播延迟。各种PUF设计是可能的,如环形振荡器,SRAM和仲裁PUF等。设计了一种基于PUF的环形振荡器,该振荡器是基于导线中存在的导致不同频率振荡的延迟,可以构成密钥生成的基础。它们也很容易在现场可编程门阵列(FPGA)中实现。本文提出了一种基于环形振荡器的增强挑战响应对(CRP)设计,提高了可靠性。我们的设计有更多的挑战响应对,因为所有可能的频率比较都完成了。此外,它提供了更好的可靠性,因为我们的方法依赖于相对值而不是绝对值,它包含了当前比较中最高频率与所有测量频率最大值之间的差异,在不同的环境条件下,即使绝对值改变,相对值也不会改变。
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引用次数: 28
A Hybrid Diagnosis System for Malignant Melanoma Detection in Dermoscopic Images 皮肤镜图像中恶性黑色素瘤的混合诊断系统
B. Pallavi, Keshvamurthy
Among the generally occurring common skin cancer, Melanoma is said to be the most dangerous type of cancer. Many of the Computer vision techniques have adapted to detect the disease early days. In the similar way this paper proposes an image pattern classification to identify skin disease in images with a combination of texture and color feature extraction. The main aim of this paper is to find appropriate features that can identify skin disease. Initially, normal and diseased images are collected and pre-processed by converting the images into Grayscale by PCA and multilevel Otsu thresholding. In addition the post processing includes dilation and erosion techniques and canny edge detection for quantization. Then features of shape, color and texture are extracted from the images and these images are classified by support vector machine classifier. A combination of several features is used to evaluate the appropriate features to find distinctive features for identification of disease. When a single feature is used, shape feature has the lowest accuracy of and texture feature has the highest accuracy. A combination of texture and color feature extraction results highest classification accuracy.
在常见的皮肤癌中,黑色素瘤被认为是最危险的一种癌症。许多计算机视觉技术已经适应了早期的疾病检测。同样,本文提出了一种结合纹理和颜色特征提取的图像模式分类方法来识别图像中的皮肤病。本文的主要目的是找到可以识别皮肤病的适当特征。首先采集正常图像和病变图像,通过PCA和多级Otsu阈值法将图像转换为灰度进行预处理。此外,后处理还包括膨胀和侵蚀技术以及用于量化的精细边缘检测。然后提取图像的形状、颜色和纹理特征,利用支持向量机分类器对图像进行分类。几种特征的组合用于评估适当的特征,以找到识别疾病的独特特征。当使用单个特征时,形状特征的精度最低,纹理特征的精度最高。结合纹理和颜色特征提取的分类精度最高。
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引用次数: 6
A Progressive Sampling based Approach to Reduce Sampling Time 一种减少采样时间的渐进式采样方法
Nandita Bangera, K. N.
Analytics plays vital role in Data Science. It involves finding trends and patterns from the huge repository of data. Scanning huge amount of data consumes lot of time, which can be reduced by sampling. In this paper we have demonstrated effectiveness of Progressive sampling wherein the sample size is gradually increased till it reaches a desired accuracy. By applying an algorithm based on Rademacher average to mine frequent datasets using Progressive sampling, we have shown that the runtime and the sampling time is considerably reduced as compared with static sampling.
分析在数据科学中起着至关重要的作用。它涉及到从庞大的数据仓库中发现趋势和模式。扫描大量的数据会消耗大量的时间,这可以通过采样来减少。在本文中,我们已经证明了渐进式抽样的有效性,其中样本量逐渐增加,直到达到所需的精度。通过应用基于Rademacher平均的算法来使用渐进式采样挖掘频繁数据集,我们已经证明,与静态采样相比,运行时间和采样时间大大减少。
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引用次数: 3
Compression of Bayer Colour Filter Array Images 拜耳彩色滤波阵列图像的压缩
Shridhar Patil, P. Deepika
Bayer Colour Filter Array is a matrix of photosensors covered with red, green, and blue colour filters. This setup is advantageous in smartphones as only a third of the required data is captured by the sensor in the camera. The rest of the components based on the colour format can be interpolated using a suitable algorithm to arrive at a full-colour image. Increasing the resolution of the camera sensor will translate to increased bandwidth in the image signal processing pipeline, and consequently power consumption. In addition to that, the bit depth is also on the rise to enhance the colours. These two factors will create a huge impact on the data to be handled in the pertinent processor. Hence, compression of the Bayer data is of immense significance. The existing standard compression schemes can be adapted to suit the Bayer format. Also, several compression schemes, specific to Bayer format have been proposed. Two compression methods, viz. JPEG-LS and Hierarchical Prediction based compression have been tested and the corresponding results are presented in this paper. The former is a standard while the latter has been proposed keeping the Bayer format in mind. Modelling of the algorithms shows that JPEG-LS is best suited in the use cases where lossless compression is desirable, and Hierarchical Prediction based compression is the better option where some amount of loss is acceptable.
拜耳彩色滤光片阵列是一个覆盖着红色、绿色和蓝色滤光片的光传感器矩阵。这种设置在智能手机上是有利的,因为相机中的传感器只捕获了所需数据的三分之一。基于颜色格式的其余组件可以使用合适的算法进行插值,以获得全彩图像。增加相机传感器的分辨率将转化为图像信号处理管道中带宽的增加,从而导致功耗的增加。除此之外,位深度也在上升,以增强颜色。这两个因素将对要在相关处理器中处理的数据产生巨大影响。因此,对拜耳公司的数据进行压缩具有重要意义。现有的标准压缩方案可以适应拜耳格式。此外,还提出了几种针对拜耳格式的压缩方案。本文对基于JPEG-LS和基于分层预测的两种压缩方法进行了测试,并给出了相应的结果。前者是一种标准,而后者是在考虑拜耳格式的情况下提出的。算法的建模表明,JPEG-LS最适合于需要无损压缩的用例,而基于分层预测的压缩是可以接受一定数量的损失的更好选择。
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引用次数: 1
Stator Fault Analysis of Permanent Magnet Synchronous Motor using Finite Element Method 永磁同步电机定子故障有限元分析
P. Naveen, Praveen Kumar N, K. Sriganesh, T. Rajesh, K. Sushmitha
One of the most common faults experienced by the permanent magnet synchronous motor (PMSM) is stator interturn fault which account for 35-40% of the machine failure. This paper focuses on the stator inter-turn fault analysis in the stator winding of Permanent Magnet Synchronous Motor (PMSM) using Finite Element Method. The analysis is carried out for 12.5% and 25% inter-turn short in stator winding of PMSM. The analytical parameters of the motor which includes torque, winding current, induced voltage, speed and electromagnetic parameters like flux density, flux lines and radial flux density were obtained for the faulty machine and compared with the healthy machine. The simulation is done using the ANSYS Maxwell finite element analysis tool.
定子匝间故障是永磁同步电动机最常见的故障之一,占整机故障的35-40%。本文对永磁同步电动机定子绕组匝间故障进行了有限元分析。对永磁同步电机定子绕组12.5%匝间短路和25%匝间短路进行了分析。得到了故障电机的解析参数,包括转矩、绕组电流、感应电压、转速以及磁通密度、磁通线、径向磁通密度等电磁参数,并与正常电机进行了比较。采用ANSYS Maxwell有限元分析工具进行仿真。
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引用次数: 3
DSM in Forecasting and Scheduling for Improving Integration of Renewable Energy Generation to the Grid DSM在可再生能源发电并网预测与调度中的应用
P. Saikishan Bharadwaj, R. Kannan, H. Sridevi
The integration of renewable energy into the grid has become a challenge and faces two fundamental technological problems, namely variability and location. As renewable resources are focused far from the customers, it requires extra-long length, high-capacity transmission to coordinate the supply with the demand. It is essential to recognize the fluctuation and the vulnerability when examining and anticipating the tasks of the power grid. The test of the changeability can be met by exchanging conventional generation goal in or out in response to the possible estimates of weather by forecast and schedule deviation settlement mechanism (DSM). The deviation settlement mechanism is a penalty to the generator who under injects or over injects power into or outside the state with a buffer limit to bring awareness to the generator so that the forecast generation almost meets the actual generation taking the accuracy & AvC into account, in this paper the DSM calculations for inter and intra state has been shown and the comparison between less and more deviation pattern is shown for both solar and wind substations.
可再生能源并网已成为一个挑战,面临两个基本的技术问题,即可变性和位置。由于可再生资源的重点远离用户,因此需要超长长度、大容量的输电来协调供需。在检查和预测电网的任务时,必须认识到电网的波动性和脆弱性。根据天气预报和调度偏差结算机制(DSM)对天气的可能估计,可通过交换常规发电目标来满足变异性的测试。偏差补偿机制是对处于缓冲限制状态或状态外的欠注或超注发电机组的一种惩罚,使发电机组意识到,在考虑精度和AvC的情况下,预测发电量与实际发电量基本一致。本文给出了状态间和状态内的DSM计算,并对太阳能和风能变电站的偏差模式进行了比较。
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引用次数: 2
Compressive Sampling and Reconstruction of ECG Signal for Manned Spaceflight Applications 载人航天心电信号压缩采样与重构
P M Anand, S. Thiruppathirajan, E. S. Shajahan, S. Sreekumar, P. Vinod, M. Narayanan Namboodiripad
Electrocardiogram (ECG) is a vital signal which represents the state of health of astronauts in a manned spaceflight mission and hence must be continuously acquired and transmitted throughout the mission. Telemetry bandwidth is a premium resource in such applications. Traditional method of sampling at Nyquist rate is highly bandwidth inefficient. Hence it is advantageous to use Compressive sensing (CS) technique to optimize data at measurement point itself. Conventional CS techniques employ computationally intensive measurement matrices which are not hardware efficient for both acquisition as well as recovery. In this work, a hardware efficient scheme with use of a sparse binary measurement matrix is proposed. The signal is recovered from the compressive measurement using a constraint function based on inverted Laplace distribution function. Gradient decent method is used to recursively recover the original ECG signal from the compressive measurements in an efficient manner. Apart from this, a projection scheme is also proposed to minimize the recovery error. The proposed scheme was extensively evaluated with different ECG samples with different compression ratios. Finally, the proposed scheme was benchmarked with Approximated L0 norm based method and it is found to perform more efficiently in compressively sensing and recovery of ECG signals.
在载人航天飞行任务中,心电图是反映航天员健康状况的重要信号,必须在整个任务过程中持续采集和传输。遥测带宽在此类应用中是一种宝贵的资源。传统的奈奎斯特速率采样方法带宽效率很低。因此,利用压缩感知技术对测点本身的数据进行优化是有利的。传统的CS技术采用计算密集型的测量矩阵,这对于采集和恢复来说都不是硬件高效的。本文提出了一种利用稀疏二值测量矩阵的硬件高效方案。利用基于拉普拉斯分布函数的约束函数从压缩测量中恢复信号。采用梯度体面法从压缩测量中递归恢复原始心电信号,有效地提高了信号的复原效率。此外,还提出了一种最小化恢复误差的投影方案。采用不同压缩比的不同ECG样本对该方案进行了广泛的评估。最后,用基于近似L0范数的方法对该方法进行了测试,结果表明该方法在心电信号的压缩感知和恢复方面具有更高的效率。
{"title":"Compressive Sampling and Reconstruction of ECG Signal for Manned Spaceflight Applications","authors":"P M Anand, S. Thiruppathirajan, E. S. Shajahan, S. Sreekumar, P. Vinod, M. Narayanan Namboodiripad","doi":"10.1109/RTEICT46194.2019.9016914","DOIUrl":"https://doi.org/10.1109/RTEICT46194.2019.9016914","url":null,"abstract":"Electrocardiogram (ECG) is a vital signal which represents the state of health of astronauts in a manned spaceflight mission and hence must be continuously acquired and transmitted throughout the mission. Telemetry bandwidth is a premium resource in such applications. Traditional method of sampling at Nyquist rate is highly bandwidth inefficient. Hence it is advantageous to use Compressive sensing (CS) technique to optimize data at measurement point itself. Conventional CS techniques employ computationally intensive measurement matrices which are not hardware efficient for both acquisition as well as recovery. In this work, a hardware efficient scheme with use of a sparse binary measurement matrix is proposed. The signal is recovered from the compressive measurement using a constraint function based on inverted Laplace distribution function. Gradient decent method is used to recursively recover the original ECG signal from the compressive measurements in an efficient manner. Apart from this, a projection scheme is also proposed to minimize the recovery error. The proposed scheme was extensively evaluated with different ECG samples with different compression ratios. Finally, the proposed scheme was benchmarked with Approximated L0 norm based method and it is found to perform more efficiently in compressively sensing and recovery of ECG signals.","PeriodicalId":269385,"journal":{"name":"2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125542803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Digital Image Encryption based on Transformation and Henon Chaotic Substitution 基于变换和Henon混沌替换的数字图像加密
S. N. Prajwalasimha, S. Kavya, C. Navyakanth
This paper intends a fast and efficient cryptosystem based on confusion and Henon chaotic diffusion. The algorithm encrypts an image in two stages. In the first stage, the original images is transformed using Pseudo Hadamard transformation (PHT) along with substitution image. The key length used in the algorithm is 128 bits. These secrete key digits are used as initial conditions for Henon chaotic generator. A substitution box (S-box) is constructed using random sequences generated by chaotic generator. The cipher image from confusion stage is then subjected for diffusion using S-box. Based on the results obtained from differential and analytical tests, the proposed algorithm can withstand such security attacks compared to existing systems.
本文提出了一种基于混沌和Henon混沌扩散的快速高效的密码系统。该算法分两个阶段对图像进行加密。在第一阶段,使用伪哈达玛变换(PHT)和替换图像对原始图像进行变换。该算法使用的密钥长度为128位。这些密钥数字作为Henon混沌发生器的初始条件。利用混沌发生器产生的随机序列构造一个替换盒(S-box)。然后用s盒对混淆阶段的密码图像进行扩散处理。基于差分测试和分析测试的结果,与现有系统相比,所提出的算法能够抵御此类安全攻击。
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引用次数: 2
Efficient Model for Searching and Detecting Semantically Similar Question in Discussion Forums of e-learning Platforms 电子学习平台论坛中语义相似问题的高效搜索与检测模型
Karthik Iyer, Girish Ewoorkar, Abhishek Patil, Hareesha Gummani, A. Parkavi
Udemy and Nptel are online learning platform where learners get access to wide variety of courses. These platforms have 2 issues which we aim to solve. First, Currently in Udemy the questions asked in discussion forum are not divided based on course videos, i.e. there is common discussion forum where question with respect to any content in the course can be asked. This is problem because, when a new question is asked all the question in the discussion forum have to be compared with the new question for similarity. This can take up significant amount of computational time. To avoid this we have applied Random Forest classifier to find out the category of a newly asked question (with respect to Udemy it would mean finding which video the question relates to), if category is found only previously asked questions in the particular category are compared for similarity rather than the previously asked questions in the whole database. Second, Currently NPTEL is not course coordinator friendly. This is because lots of times there is redundancy in the questions asked, this is burden on the course coordinator because he/she has to answer to each and every version of the same question. This has been tackled by using techniques like GBDT, SVM to detect semantic similarity of questions. The Random Forest classifier achieved accuracy of nearly 73% and GBDT achieved accuracy of nearly 64%.
Udemy和Nptel是在线学习平台,学习者可以获得各种各样的课程。这些平台有两个问题需要我们解决。首先,目前在Udemy中,讨论区提出的问题并没有按照课程视频进行划分,即有一个共同的讨论区,可以针对课程中的任何内容提出问题。这是一个问题,因为当提出一个新问题时,讨论论坛中的所有问题都必须与新问题进行比较以获得相似性。这将占用大量的计算时间。为了避免这种情况,我们应用随机森林分类器来找出新问问题的类别(对于Udemy来说,这意味着找到问题与哪个视频相关),如果找到类别,则只比较特定类别中以前问过的问题的相似性,而不是整个数据库中以前问过的问题。第二,目前NPTEL对课程协调员并不友好。这是因为很多时候所问的问题都是冗余的,这对课程协调员来说是一种负担,因为他/她必须回答同一个问题的每个版本。这个问题已经通过使用GBDT、SVM等技术来检测问题的语义相似度来解决。随机森林分类器的准确率接近73%,GBDT分类器的准确率接近64%。
{"title":"Efficient Model for Searching and Detecting Semantically Similar Question in Discussion Forums of e-learning Platforms","authors":"Karthik Iyer, Girish Ewoorkar, Abhishek Patil, Hareesha Gummani, A. Parkavi","doi":"10.1109/RTEICT46194.2019.9016786","DOIUrl":"https://doi.org/10.1109/RTEICT46194.2019.9016786","url":null,"abstract":"Udemy and Nptel are online learning platform where learners get access to wide variety of courses. These platforms have 2 issues which we aim to solve. First, Currently in Udemy the questions asked in discussion forum are not divided based on course videos, i.e. there is common discussion forum where question with respect to any content in the course can be asked. This is problem because, when a new question is asked all the question in the discussion forum have to be compared with the new question for similarity. This can take up significant amount of computational time. To avoid this we have applied Random Forest classifier to find out the category of a newly asked question (with respect to Udemy it would mean finding which video the question relates to), if category is found only previously asked questions in the particular category are compared for similarity rather than the previously asked questions in the whole database. Second, Currently NPTEL is not course coordinator friendly. This is because lots of times there is redundancy in the questions asked, this is burden on the course coordinator because he/she has to answer to each and every version of the same question. This has been tackled by using techniques like GBDT, SVM to detect semantic similarity of questions. The Random Forest classifier achieved accuracy of nearly 73% and GBDT achieved accuracy of nearly 64%.","PeriodicalId":269385,"journal":{"name":"2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129512333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated Secure Columnist Hexpod All- Terrain Full Time Counter-Foe Master 综合安全专栏作家六脚全地形全职反敌人大师
N. Ashwini, N. Swathi, L. Prem, B. Nithin, A. N. Prajwal, G. A. S. Raghavendra
The present technology in the defence for the surveillance system is not effective. The different ways in which intruders invading to an unauthorized territory has increased over a year and thus causing a massive destruction and other violence which in turn results in life losses and, disturbs the peace of a country. There is no much advanced technology which can control the trespassers from invading, navigating on any terrain condition and on water with full time surveillance. In this paper, we have proposed a counter-foe night vision eyed robot, for monitoring and recognizing the foe activities along with authorized and unauthorized persons discernation within the premises using advanced Haar transformation and face recognition system with weapon detection capability. If robot recognizes any unusual activities, will automatically captures the scene and send the processed image to the base station. It can also transmit live video if necessary, at certain condition. Unlike recent technologies robot has also got the capability for detecting the invisible foe activities that takes place beneath the terra-firm with terrain switching mechanism.
目前对监视系统的防御技术并不有效。入侵者入侵未经授权领土的不同方式在一年中有所增加,从而造成大规模破坏和其他暴力,从而造成生命损失并扰乱一个国家的和平。没有什么先进的技术可以控制入侵者在任何地形条件下的入侵和航行,也没有全天候监视的水上航行。在本文中,我们提出了一种对抗敌人的夜视眼睛机器人,用于监控和识别敌人的活动,以及使用先进的哈尔变换和具有武器探测能力的人脸识别系统识别房屋内的授权和未经授权的人员。如果机器人识别到任何异常活动,将自动捕捉现场并将处理后的图像发送到基站。如果有必要,在一定的条件下,它还可以传输实时视频。与最近的技术不同,机器人还具有探测地面下发生的隐形敌人活动的能力-地形切换机制。
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引用次数: 0
期刊
2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)
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