2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)最新文献_第6页

An experimental study on application of Orthogonal Matching Pursuit algorithm for image denoising 正交匹配追踪算法在图像去噪中的应用实验研究

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526503

M. Suchithra, P. Sukanya, P. Prabha, O. Sikha, V. Sowmya, K. P. Soman

{"title":"An experimental study on application of Orthogonal Matching Pursuit algorithm for image denoising","authors":"M. Suchithra, P. Sukanya, P. Prabha, O. Sikha, V. Sowmya, K. P. Soman","doi":"10.1109/IMAC4S.2013.6526503","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526503","url":null,"abstract":"Signal or image reconstruction has now become a common task in many applications. According to linear algebra perspective, the number of measurements made or the number of samples taken for reconstruction must be greater than or equal to the dimension of signal or image. Also reconstruction follows the Shanon's sampling theorem which is based on the Nyquist sampling rate. The reconstruction of a signal or image using the principle of compressed sensing is an exception which makes use of only few number of samples which is below the sampling limit. Compressive sensing also known as sparse recovery aims to provide a better data acquisition and reduces computational complexities that occur while solving problems. The main goal of this paper is to provide clear and easy way to understand one of the compressed sensing greedy algorithm called Orthogonal Matching Pursuit (OMP). The OMP algorithm involves the concept of overcomplete dictionary that is formulated based on different thresholding methods. The proposed method gives the simplified approach for image denoising by using OMP only. The experiment is performed on few standard image data set simulated with different types of noises such as Gaussian noise, salt and pepper noise, exponential noise and Poisson noise. The performance of the proposed method is evaluated based on the image quality metric, Peak Signal-to-Noise Ratio (PSNR).","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122397799","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: 7

Fuzzy logic based depth control of an autonomous underwater vehicle 基于模糊逻辑的自主水下航行器深度控制

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526393

Anirban Nag, S. S. Patel, S. A. Akbar

{"title":"Fuzzy logic based depth control of an autonomous underwater vehicle","authors":"Anirban Nag, S. S. Patel, S. A. Akbar","doi":"10.1109/IMAC4S.2013.6526393","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526393","url":null,"abstract":"This paper presents an adaptive fuzzy logic based controller for the depth control of an Autonomous Underwater Vehicle(AUV). The kinematic and dynamic motion of an AUV is described using six degree of freedom differential equations of motion using bodyand earth-fixed frame of references. Due to hydrodynamic forces, these equations are complex, non-linear and highly coupled therefore are impractical for use in controller design. In practice, system is commonly decomposed into three non-interactive systems such as diving subsystem, steering subsystem and speed subsystem. In this study a reduced order model was derived for diving system using depth plane dynamics and a suitable dual loop control strategy is formulated by synthesizing fuzzy logic based control in series with a phase lead dynamic compensator to achieve the desired set point tracking and reasonably good performance objectives under variety of disturbances encountered in oceanic environments. The obvious benefits of this type of approach lies in the simplicity of the scheme compared to the conventional deterministic systems and easy implementation for real time control of the Autonomous Underwater Vehicles. The proposed fuzzy logic based controller accepts deterministic information, the depth of the vehicle as input and achieves imprecise reasoning and de-fuzzification to generate a deterministic control output which manipulates the pitch angle and hence the depth of the vehicle. The simulated results clearly demonstrate the efficacy of this approach as compared to the conventional PID controller designed and tuned using Ziegler-Nichols scheme.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122802667","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: 31

Novel transistor level realization of ultra low power high-speed adiabatic Vedic multiplier 超低功耗高速绝热韦达乘法器的新型晶体管级实现

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526516

M. Chanda, S. Banerjee, D. Saha, S. Jain

引用次数: 11

Connectivity enhancement in randomly distributed wireless sensor network using cooperative cluster transmission 基于协同集群传输的随机分布无线传感器网络连通性增强

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526482

Sushil Kumar, D. K. Lobiyal

{"title":"Connectivity enhancement in randomly distributed wireless sensor network using cooperative cluster transmission","authors":"Sushil Kumar, D. K. Lobiyal","doi":"10.1109/IMAC4S.2013.6526482","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526482","url":null,"abstract":"Sustaining an acceptable level of network connectivity is a critical requirement in wireless sensor networks. Due to limited battery power, sensors are suspected to failure which causes the loss of sensors and results the unsatisfactory connectivity. In hostile environment, Sensors are randomly and recklessly heaved over area of interest which causes accumulation of sensors in one area and absence in other. In such situations, the multihop transmission is not appropriate for providing the network connectivity. In this paper, an approach for improving the connectivity with limited number of sensors using cooperative cluster transmission is presented. A light weight clustering algorithm to support the cooperative transmission for a sparsely deployed sensor network is presented. The simulation results show that the higher connectivity is achieved with limited number of sensors employing the cooperative cluster transmission algorithm. The performance of cooperative cluster transmission algorithm is always high as compared to multihop transmission mechanism.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116843005","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: 1

Image fusion technique using DT-CWT 基于DT-CWT的图像融合技术

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526400

S. Sruthy, L. Parameswaran, A. Sasi

引用次数: 63

MITSAT — An automated student attendance tracking system using Bluetooth and EyeOS MITSAT -使用蓝牙和EyeOS的自动学生出勤跟踪系统

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526472

S. Avireddy, P. Veerapandian, S. Ganapati, M. Venkat, P. Ranganathan, V. Perumal

{"title":"MITSAT — An automated student attendance tracking system using Bluetooth and EyeOS","authors":"S. Avireddy, P. Veerapandian, S. Ganapati, M. Venkat, P. Ranganathan, V. Perumal","doi":"10.1109/IMAC4S.2013.6526472","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526472","url":null,"abstract":"This paper proposes a novel solution MITSAT (Madras Institute of Technology Student Attendance Tracking system). MITSAT provides automation of student attendance tracking using wireless technology such as Bluetooth and scalability using cloud computing. Current day student attendance tracking systems employed in universities require a lot of human intervention. Also its storage for future use consumes a lot of memory. The proposed work identifies the potential use of Bluetooth and EyeOS cloud computing platform to track students' attendance and to efficiently store and retrieve the same. The challenges associated with the state-of-the-art technologies for automation are data heterogeneity, availability, consistency and fault tolerance. The problem with Schema based SQL database is that it is not scalable horizontally and provides poor fault tolerance to partitions. The issue with the schema free NoSQL databases is that it can provide either availability and fault tolerance or consistency and fault tolerance but not all three features together. The proposed work addresses these challenges by combining schema based MySQL and schema free mongoDB databases. The proposed work provides a scalable solution for the bottleneck of storing metadata for small files in Hadoop using a novel correlation based archiving technique.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126436028","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: 8

Efficient prototype filter design for Filter Bank Multicarrier (FBMC) System based on Ambiguity function analysis of Hermite polynomials 基于Hermite多项式模糊函数分析的滤波器组多载波系统原型滤波器设计

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526477

J. Prakash, G. R. Reddy

{"title":"Efficient prototype filter design for Filter Bank Multicarrier (FBMC) System based on Ambiguity function analysis of Hermite polynomials","authors":"J. Prakash, G. R. Reddy","doi":"10.1109/IMAC4S.2013.6526477","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526477","url":null,"abstract":"Filter Bank Multicarrier (FBMC) is emerging as a better alternative to the Orthogonal Frequency Division Multiplexing (OFDM) in next generation wireless multicarrier systems. For robust performance under doubly dispersive channels, the prototype filter in FBMC systems must be isotropic and orthogonal in time and frequency. The existing design methods for prototype filter design are the Extended Gaussian Function (EGF) design based on Zak transform and Weighted HermitePulse (WHP) design. In this paper, it is attempted to design the prototype filter by performing time frequency analysis on the Ambiguity function of isotropic Hermite pulses. The Filter coefficients are obtained as the weighted sum of the Hermite pulses and constrained optimization is performed to find out the weights. An alternative objective function and optimization procedure is used in the present study which yield better results compared to conventional WHP problem. The orthogonality and isotropic conditions of the designed filter is compared with the conventional filters using Ambiguity plots.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129842503","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: 13

A graphical design methodology of missile autopilot 导弹自动驾驶仪图形化设计方法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526490

S. Pain, K. Tiwari

引用次数: 1

Biased confidence classification algorithm for faculty subject allocation in education domain 教育领域教师学科分配的偏置信度分类算法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526471

A. Agrawal, A. Gupta, M. Venkatesan

{"title":"Biased confidence classification algorithm for faculty subject allocation in education domain","authors":"A. Agrawal, A. Gupta, M. Venkatesan","doi":"10.1109/IMAC4S.2013.6526471","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526471","url":null,"abstract":"There are certain selection and allocation processes in the real world that are performed based on previous knowledge. We can find many applications related to these processes, for example, Candidate selection for promotion, Candidate to department allotment, faculty to subject allotment, etc. In the small scale, the process is not very tedious. But, when it comes to large scale selections and allotments, the process can be very time consuming and prune to human error. So automation in this process is the need of the hour. This process requires an ample amount of decision making, and so data-mining techniques can prove to be effective methods to deal with such problems. There are many multi-class classification methods that can be used as the solution to these problems. But, decisions based only on trained classifiers with historical data-patterns, won't be sufficient in the real time allotment. There might be certain parameters that should be given more priority for the current allocation. In this paper we combine both the historical trends and biased parameters to perform the classification satisfying real time demands. We then compare and contrast its performance against various existing classification algorithms. Our experiment with faculty-course allotment dataset shows that this method is more suitable than other methods for such practical applications.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130654030","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: 1

Performance evaluation of MANET routing protocols under RPGM model by varying transmission range RPGM模型下随传输距离变化的MANET路由协议性能评价

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526520

H. Prabhakaran, B. Kumar, P. Gupta

引用次数: 5