2012 15th International Conference on Computer and Information Technology (ICCIT)最新文献

Adaptation of spray phase to improve the binary spray and Wait routing in Delay Tolerant Networks 自适应喷雾阶段改进延迟容忍网络中的二进制喷雾和等待路由

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509723

S. Iqbal, A. K. Chowdhury

{"title":"Adaptation of spray phase to improve the binary spray and Wait routing in Delay Tolerant Networks","authors":"S. Iqbal, A. K. Chowdhury","doi":"10.1109/ICCITECHN.2012.6509723","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509723","url":null,"abstract":"Delivering messages in Delay Tolerant Networks is a nontrivial challenge due to its sparse nature and intermittent connectivity. Therefore efficient routing of messages is vital for these networks. In this work, we aim to adapt the spray phase of the Binary Spray and Wait routing scheme in Delay Tolerant Networks to avoid large communication overhead suffered by the scheme. We define an adaptive spraying scheme to allow nodes to switch to the wait phase without lingering the spray phase unnecessarily. Binary Spray and Wait routing permits nodes to enter the wait phase when the remaining number of copies of a message reaches one. However, we permit nodes to consider the time to live value of a message instead of the number of copies to enter the wait phase. We formulate an equation to obtain a switch value to compare against the time to live value of a message to migrate to the wait phase. Furthermore, we compare our scheme with that of other schemes through simulations. Simulation results show that our proposed adaptive spraying scheme performs better than that of others in different network scenarios.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125005310","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: 9

A digital video watermarking technique based on identical frame extraction in 3-Level DWT 基于同帧提取的三级小波变换数字视频水印技术

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509780

Tamanna Tabassum, S. Islam

{"title":"A digital video watermarking technique based on identical frame extraction in 3-Level DWT","authors":"Tamanna Tabassum, S. Islam","doi":"10.1109/ICCITECHN.2012.6509780","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509780","url":null,"abstract":"Digital video watermarking was introduced at the end of the last century to provide means of enforcing video copyright protection. Video watermarking involves embedding a secret information in the video. In this paper, we proposed a digital video watermarking technique based on identical frame extraction in 3-Level Discrete Wavelet Transform (DWT). In the proposed method, first the host video is divided into video shots. Then from each video shot one video frame called identical frame is selected for watermark embedding. Each identical frame is decomposed into 3-level DWT, then select the higher subband coefficients to embed the watermark and the watermark are adaptively embedded to these coefficients and thus guarantee the perceptual invisibility of the watermark. For watermark detection, the correlation between the watermark signal and the watermarked video is compared with a threshold value obtained from embedded watermark signal. The experimental results demonstrate that the watermarking method has strong robustness against some common attacks such as cropping, Gaussian noise adding, Salt & pepper noise adding, frame dropping and frame adding.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425058","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: 67

Development of a device for remote monitoring of heart rate and body temperature 研制一种远程监测心率和体温的装置

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITechn.2012.6509783

M. A. Rahman, Atanu Barai, Md. Asadul Islam, M. Hashem

引用次数: 11

An approach to real-time portable device for face recognition system 一种用于人脸识别系统的实时便携式设备

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509715

A. Mehrab, P. Debnath, G. M. Mashrur-E-Elahi

{"title":"An approach to real-time portable device for face recognition system","authors":"A. Mehrab, P. Debnath, G. M. Mashrur-E-Elahi","doi":"10.1109/ICCITECHN.2012.6509715","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509715","url":null,"abstract":"Face is the most visible organ of human which can be used to differentiate one person from another. Embedded face recognition is quite a challenging era of biometric which can be used in different applications. There are currently commercially available systems for face recognition, but they are bulky, expensive, and proprietary. In this paper we will discuss about a real-time, portable, low cost face recognition system, developed by us, we named it as RPIPD-v1 (Real Time Portable Image Processing Device Version 1) which can work as a standalone system. This system can detect and recognize human faces and there is no such portable device that is capable of having this feature together. Our main aim was to glue these two tasks (Face Detection & Face Recognition) and build a system with the hardware and software to demonstrate the performance. The accuracy of our device is about 60% in distinguishing known and unknown faces. This is a general output of our device for critical situations. For the best performance of recognizing a face we need to highlight the individuals face with proper lighting and the individual's face must be in front of the camera properly. This device is made totally portable and standalone. Small size and low power enables this device to be placed in unique environments, collecting images autonomously for face recognition and other image processing applications. Low cost is another advantage which will allow this device to be used in various places as an effective solution.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129780641","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: 3

High performance decision based median filter for salt and pepper noise removal in images 基于决策的中值滤波去除图像中的椒盐噪声

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509707

G. M. Daiyan, M. Mottalib, Muhammad Mizanur Rahman

{"title":"High performance decision based median filter for salt and pepper noise removal in images","authors":"G. M. Daiyan, M. Mottalib, Muhammad Mizanur Rahman","doi":"10.1109/ICCITECHN.2012.6509707","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509707","url":null,"abstract":"A high performance decision based median filter is proposed for removal of salt and pepper in images. It is an enhanced Adaptive Switching Median filter which initially detects noise pixels iteratively through several phases and replaces the noisy pixels with median value. It calculates median value without considering noisy pixels to improve the performance of median filter for high density noise. Detection of noise is done by expanding the mask until 7×7 to maintain local information extraction. Moreover, the processing pixel is replaced by last processed pixel if the algorithm fails to detect noise free pixel at 7×7. If the noise free median value is not available at 7×7 processing window, the last processed pixel take into consideration if it is noise free. If the last processed pixel is noisy, the algorithm select a window size with 15×15 dimension and calculate the number of 0's and 255's in the processing window. Then replace the processing pixel with 0 or 255 which is more in number in the selected window. Experiment result shows that it can provide very high quality restored images for images that are contaminated by “salt & pepper” noise, especially when the noise density is large.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805187","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

Group Search Optimization to solve Traveling Salesman Problem 群搜索优化解决旅行商问题

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509797

M. Akhand, A. B. M. Junaed, Md. Forhad Hossain, K. Murase

引用次数: 5

Crosstalk analysis in digital subscriber line by evaluating power spectral density function 基于功率谱密度函数的数字用户线路串扰分析

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509746

M. Mahiuddin, Md. Atikur Rahman, Md. Monirul Islam, B. Roy

引用次数: 0

A secure routing scheme in MANET with CRT based secret sharing 一种基于CRT的安全路由方案

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509789

Ditipriya Sinha, R. Chaki, U. Bhattacharya

引用次数: 1

A block based data hiding method in images using pixel value differencing and LSB substitution method 一种基于像素值差分和LSB替换的图像数据块隐藏方法

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509770

Tasnuva Mahjabin, Syed Monowar Hossain, Md Shariful Haque

{"title":"A block based data hiding method in images using pixel value differencing and LSB substitution method","authors":"Tasnuva Mahjabin, Syed Monowar Hossain, Md Shariful Haque","doi":"10.1109/ICCITECHN.2012.6509770","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509770","url":null,"abstract":"Information hiding is a historical but on demand fascinating research area. Now, in today's world, the availability of information has become so easy that the security and insecurity of information goes side by side. In order to provide security of information a science called, Steganography has emerged. Steganography conceals the existence of information into images to formulate a secure communication. In this paper, a Steganographic method based on Pixel Value Differencing (PVD) and LSB Substitution method is proposed. To meet the increasing demand for privacy and secrecy the method focused mainly on making it a robust, secured technique of information hiding. An efficient and dynamic embedding algorithm is proposed in this paper that not only hides the secret data with an imperceptible visual quality and increased capacity but also make secret code breaking a good annoyance for the attacker. This method also represents an extraction algorithm that effectively extracts the entire secret message without any loss of a single data. Finally, experimental results show that, the proposed method achieves an increased embedding capacity and lower image degradation with improved security as compared to LSB substitution method and some recent existing methods of data hiding.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131314245","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: 21

Performance analysis of RLS and VSS-LMS channel estimation techniques for 4G MIMO OFDM systems 4G MIMO OFDM系统中RLS和VSS-LMS信道估计技术的性能分析

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509724

Moinul Hossain, S. Farhad, M. Riasat

引用次数: 8