2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)最新文献_第10页

An efficient motion estimation algorithm using division mechanism of low and high motion zone 一种基于高低运动区划分机制的高效运动估计算法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526402

S. Acharjee, N. Dey, D. Biswas, P. Maji, S. S. Chaudhuri

引用次数: 19

BHP saving mechanisms — An approach to improve performance of Optical Burst Switched network BHP节省机制——提高光突发交换网络性能的一种方法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526486

Sandeep S. Udmale, V. Sambhe, R. Tajanpure, Archana Wasule

引用次数: 0

Designing and comparative study of parameters affecting Helix performance at 1420MHz 1420MHz时影响Helix性能的参数设计与比较研究

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526430

T. Sharma, H. Vasu

{"title":"Designing and comparative study of parameters affecting Helix performance at 1420MHz","authors":"T. Sharma, H. Vasu","doi":"10.1109/IMAC4S.2013.6526430","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526430","url":null,"abstract":"The paper addresses a study of various parameters which effects the performance of a Helix antenna. A conducting wire in form of screw threads forms a Helix. Helix antenna is used in the field of space sciences due to its high directivity and gain. This paper optimizes the performance of a monofliar Helix antenna which is used as a feed at a frequency of 1420 MHz. The frequency of operation is 1420MHz with a wavelength of 0.211 meters. Theoretical simulations of helix are carried out using Numerical Electromagnetic Code, Version 2 software which is numeric code based on method of moments. Helix antenna is fabricated and optimized to a beam width of 80° so that it can fit into aerospace antenna communication systems. Radiation properties, including far-field patterns, gain, axial ratio, VSWR, return loss are computed for frequency of 1420 MHz. All theoretical studies of helix antenna are carried out using NEC-2 (Numerical Electromagnetic Code, Version 2.0) software, which is a numerical code based on the method of moments. The measurements conducted in paper were limited to far-field patterns only. A comparative study of variation in performance of Helix with respect to varying parameters is also carried out using simulation process and by comparing various results appropriate parameters are selected and thereby fabricated. The helix with low fabrication cost makes this antenna very attractive to mobile and satellite communications and aerospace applications.","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":"126799107","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: 2

Singularity detection in fingerprint image using orientation consistency 基于方向一致性的指纹图像奇异点检测

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526398

G. C. Zacharias, P. Lal

引用次数: 3

Impact of GOP size on individual and combined scalability in H.264/SVC GOP大小对H.264/SVC中单个和组合可扩展性的影响

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526484

N. Shah, U. Dalal

引用次数: 2

Optimization of incremental optical encoder pulse processing 增量式光编码器脉冲处理的优化

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526510

N. Johnson, K. J. Mohan, K. E. Janson, J. José

引用次数: 15

A rough set approach to identify content and navigational pages at a website 识别网站内容和导航页面的粗糙集方法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526377

Justin Jose, P. Lal

引用次数: 0

Boolean Algebra based effective and efficient asymmetric key cryptography algorithm: BAC algorithm 基于布尔代数的高效非对称密钥加密算法:BAC算法

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526417

N. Kumar, Pankaj Gupta, M. Sahu, M. A. Rizvi

{"title":"Boolean Algebra based effective and efficient asymmetric key cryptography algorithm: BAC algorithm","authors":"N. Kumar, Pankaj Gupta, M. Sahu, M. A. Rizvi","doi":"10.1109/IMAC4S.2013.6526417","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526417","url":null,"abstract":"The Internet was born of academic efforts to share information; it never strove for high security measures. It plays important role in becoming people online, this mode is easy and effective but dangerous too in terms of data hacking and cracking by unauthorized persons. It is needed that while using Internet data must be secured and personal. Encryption can be used to protect data in transit, for example data being transferred via network (e.g. the Internet, e-commerce), mobile telephones, wireless microphones, wireless intercom systems, Bluetooth devices and bank automatic teller machines. Encrypting data in transit also helps to secure it as it is often difficult to physically secure all access to networks. Encryption, by itself, can protect the confidentiality of messages, but other techniques are still needed to protect the integrity and authenticity of a message; for example, verification of a message authentication codes (MAC) or a digital signature. Standards and cryptographic software and hardware to perform encryption are widely available, but successfully using encryption to ensure security may be a challenging problem. A single slip-up in system design or execution can allow successful attacks. Sometimes an adversary can obtain unencrypted information without directly undoing the encryption. In this paper an attempt is made to develop new encryption and decryption algorithm and implemented in Java, it gives very encouraging results in small as well as in large data files.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"10 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":"129951795","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

Improvement of masses detection in digital mammograms employing non-linear filtering 非线性滤波在数字乳房x光片肿块检测中的应用

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526445

V. Bhateja, S. Urooj, A. Pandey, A. Lay-Ekuakille, M. Misra

引用次数: 36

Progressive visual cryptography with watermarking for meaningful shares 渐进式视觉加密与有意义的共享水印

2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s) Pub Date : 2013-03-22 DOI: 10.1109/IMAC4S.2013.6526443

P. V. Jithi, A. T. Nair

{"title":"Progressive visual cryptography with watermarking for meaningful shares","authors":"P. V. Jithi, A. T. Nair","doi":"10.1109/IMAC4S.2013.6526443","DOIUrl":"https://doi.org/10.1109/IMAC4S.2013.6526443","url":null,"abstract":"Progressive Visual Cryptography (PVC) is a special encryption technique which can be utilized to recover the secret image gradually by superimposing more and more shares. If we only have a few pieces of shares, we could get an outline of the secret image; by increasing the number of the shares being stacked, the details of the hidden information can be revealed progressively. PVC using unexpanded shares regenerates images of high quality. But this method is insecure as the shares generated are noise like images and have more interest of hackers as they treat them as critical information in the transmission. If the random looking shares are enveloped into some meaningful images the interest of hackers can be reduced. In the proposed method, a digital watermarking technique is used to generate meaningful shares. The secret image shares are watermarked with different cover images and are transmitted. At the receiving side the cover images are extracted from the shares and stacked one by one which reveals the secret image progressively. This scheme provides a more efficient way to hide images in different meaningful shares providing high security and recovered image with high contrast.","PeriodicalId":403064,"journal":{"name":"2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s)","volume":"75 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":"124873514","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: 11