The 10th IEEE International Symposium on Signal Processing and Information Technology最新文献_第4页

A framework to strengthen password authentication using mobile devices and browser extensions 一个使用移动设备和浏览器扩展来加强密码认证的框架

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711728

P. Shi, Bo Zhu, A. Youssef

引用次数: 1

Enhancement of breathing signal using delayless subband adaptive filter with HPF 用HPF无延迟子带自适应滤波器增强呼吸信号

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711770

Kali Vara Prasad Naraharisetti

引用次数: 1

Resource allocation in relay-assisted DS/CDMA interference channels: A Stackelberg game approach 中继辅助DS/CDMA干扰信道中的资源分配:一种Stackelberg博弈方法

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711791

A. Zappone, Eduard Axel Jorswieck

引用次数: 6

VC-1 zero block detection method in motion estimation video coding VC-1零块检测方法在运动估计视频编码中的应用

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711788

Hesham A. Deghiedy, M. El-Sharkawy, G. Fahmy

{"title":"VC-1 zero block detection method in motion estimation video coding","authors":"Hesham A. Deghiedy, M. El-Sharkawy, G. Fahmy","doi":"10.1109/ISSPIT.2010.5711788","DOIUrl":"https://doi.org/10.1109/ISSPIT.2010.5711788","url":null,"abstract":"In this paper, we propose a VC-1 zero block detection method, for very low bit-rate applications that skip the transform operation for detected zero blocks. The proposed method works during the process of motion search for inter frame coding, by comparing the SAD of each residual block to two thresholds based on a value related to the QP, resulting in a two-option method for each threshold; where the 1st is for preserving quality, and the 2nd is for saving time. Normally VC-1 skips the quantization operation for detected zero blocks. In addition when a MB (macro-block) is detected as a zero MB, meaning that all 6 blocks in a MB are zeros; VC-1 signals this MB as a skipped MB, where it's treated differently and many processes are skipped on the MB layer. For that reason, the proposed method is enhanced again with skipping the transform operation, but for MBs with five zero blocks. Meaning that a 6th non-zero block in the MB will be a zero block, and the whole MB will then be signaled as a skipped MB. Loosing the information of the non-zero block, adds quality degradation, but compression takes place more effectively. Among the four sequences tested the Hall showed the best results with up to 73.55%, 78.00%, and 88.91% of the original file size, encoding, and decoding times respectively. On the other hand, the quality degraded, as was expected, with a maximum average PSNR by 5.3 dB for the Hall sequence and 3.4 dB in the Foreman sequence.","PeriodicalId":308189,"journal":{"name":"The 10th IEEE International Symposium on Signal Processing and Information Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116496134","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

On the advantages of subspace tracking for temporal updating 子空间跟踪在时间更新中的优势

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711805

Matthias Lechtenberg, J. Götze

引用次数: 4

Approximate iterative Least Squares algorithms for GPS positioning GPS定位的近似迭代最小二乘算法

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711784

Yuheng He, Rainer Martin, A. Bilgic

{"title":"Approximate iterative Least Squares algorithms for GPS positioning","authors":"Yuheng He, Rainer Martin, A. Bilgic","doi":"10.1109/ISSPIT.2010.5711784","DOIUrl":"https://doi.org/10.1109/ISSPIT.2010.5711784","url":null,"abstract":"The efficient implementation of positioning algorithms is investigated for Global Positioning System (GPS) and Differential GPS (DGPS). This is particularly important for smart phones with battery limitations. With the help of the information from base stations, Assisted GPS (AGPS) and DGPS can do the positioning more efficiently and more precisely than GPS. In order to do the positioning, the pseudoranges between the receiver and the satellites are required. The most commonly used algorithm for position computation from pseudoranges is non-linear Least Squares (LS) method. Linearization is done to convert the non-linear system of equations into an iterative procedure, which requires the solution of a linear system of equations in each iteration, i.e. linear LS method is applied iteratively. CORDIC-based approximate rotations are used while computing the QR decomposition for solving the LS problem in each iteration. By choosing accuracy of the approximation, e.g. with a chosen number of optimal CORDIC angles per rotation, the LS computation can be simplified. The accuracy of the positioning results is compared for various numbers of required iterations and various approximation accuracies using real GPS data. The results show that very coarse approximations are sufficient for a reasonable positioning accuracy. Therefore, the presented method reduces the computational complexity significantly and is highly suitable for hardware implementation.","PeriodicalId":308189,"journal":{"name":"The 10th IEEE International Symposium on Signal Processing and Information Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128303751","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

On optimal selection of software learning packages using Artificial Neural Networks' modeling (educational simulation approach) 基于人工神经网络建模(教育仿真方法)的软件学习包优化选择

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711748

H. Mustafa, T. Al-Somani

{"title":"On optimal selection of software learning packages using Artificial Neural Networks' modeling (educational simulation approach)","authors":"H. Mustafa, T. Al-Somani","doi":"10.1109/ISSPIT.2010.5711748","DOIUrl":"https://doi.org/10.1109/ISSPIT.2010.5711748","url":null,"abstract":"This paper addresses an interdisciplinary solution for one of the problems associated with computerized educational disciplines. Addressed problem basically concerned with realistic computer-based educational simulations (e-Sims). More specifically, it searches for optimal software learning package(s) applied for teaching of specified curriculum(s) in classroom(s). Herein, quantitative evaluation as well as statistical analysis of (computer based) learning systems performance are performed. That is by adopting realistic neural network modeling of such systems searching for selecting an optimal software learning package . On the basis of a suggested selection criterion, fulfilled improvements after application of any SWLP are quantitatively measured . Consequently, an optimal computer assisting learning package is relevantly assigned for practical field application. Finally, obtained simulation results noticed to be supported well by some practical (field testing) results obtained after application of one software learning package in some classrooms (a case study).","PeriodicalId":308189,"journal":{"name":"The 10th IEEE International Symposium on Signal Processing and Information Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133674732","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

SCAMRA: Simulated Context-Aware Meeting Room Application SCAMRA:模拟情境感知会议室应用程序

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711724

Samah A. Zaki, M. Hana, Y. Helmy

{"title":"SCAMRA: Simulated Context-Aware Meeting Room Application","authors":"Samah A. Zaki, M. Hana, Y. Helmy","doi":"10.1109/ISSPIT.2010.5711724","DOIUrl":"https://doi.org/10.1109/ISSPIT.2010.5711724","url":null,"abstract":"This paper deals with how to adapt the context architecture defined in [1] to a context-aware application called Simulated Context-Aware Meeting Room Application (SCAMRA). The main goal is to test and experiment the CFM and the proposed architecture done in [1]. SCAMRA can be used to manage any holding meeting on offices, universities, organizations or any other location by managing sessions, attendees and generating overall meeting report. It uses a large variety of context including user location, favorite subjects, preferred setting display, questions/notes that users ask/take, time, presentations, schedules, reports, and many activities and/or services. Primary context used in SCAMRA is about person, device, time, location, activity and services. Those contexts are grouped under more general categories related to meeting state and time-context, which are as before meeting, start meeting, end meeting, during meeting and after meeting context. SCAMRA has two main activities, person arrival and ask/take question/note activity. Other activities are based on the previous meeting states. These activities enforce special services such as greeting arrivals, change desktop setting, send meeting presentations to members, display meeting schedule, open presentation in its session, save attendee's questions/notes, switch between Bluetooth and barcode as needed, register new visitors, format/create/open/print/send overall meeting report.","PeriodicalId":308189,"journal":{"name":"The 10th IEEE International Symposium on Signal Processing and Information Technology","volume":"13 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116559006","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

An F0 Control Model for Singing Synthesis based on Proportional-Integral-Derivative controller 基于比例-积分-导数控制器的唱歌合成F0控制模型

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711772

Wen-Hsing Lai, Sen-Fu Liang

引用次数: 2

Real time processing of a Lattice Wave Digital matched filter 格子波数字匹配滤波器的实时处理

The 10th IEEE International Symposium on Signal Processing and Information Technology Pub Date : 2010-12-15 DOI: 10.1109/ISSPIT.2010.5711783

K. Moustafa, F. Ahmed, M. Romeh, A. Fahmy

引用次数: 0