Image Processing & Communications最新文献_第10页

Object recognition algorithm for mobile devices 移动设备对象识别算法

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0088-x

R. Kozik, A. Marchewka

引用次数: 1

Network anomaly detection based on signal processing techniques 基于信号处理技术的网络异常检测

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0071-6

T. Andrysiak, Ł. Saganowski, M. Maszewski

引用次数: 0

Application of the curvature scale space transform to the representation of three-dimensional models 曲率尺度空间变换在三维模型表示中的应用

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0087-y

D. Frejlichowski

{"title":"Application of the curvature scale space transform to the representation of three-dimensional models","authors":"D. Frejlichowski","doi":"10.2478/v10248-012-0087-y","DOIUrl":"https://doi.org/10.2478/v10248-012-0087-y","url":null,"abstract":"Abstract In this paper an algorithm for the representation of 3D models is described and experimentally evaluated. Three-dimensional objects are becoming very popular recently and they are processed in various ways - analysed, retrieved, recognised, and so on. Moreover, they are employed in various aplications, such as virtual reality, entertainment, Internet, Computer Aided Design, or even in biometrics or medical imaging. That is why the development of appropriate algorithms for the representation of 3D objects is so important recently. These algorithms - so called 3D shape descriptors - are assumed to be invariant to particular transformations and deformations. One of the possible approaches is based on the projections of a 3D object into planar shapes and representation of them using a 2D shape descriptor. An algorithm realising this idea is described in this paper. Its first stage is based on the rendering of 20 2D projections, from various points of view. Later, the obtained projections are stored in a form of bitmaps and the Curvature Scale Space algorithm is applied for the description of the planar shapes extracted from them. The proposed approach is experimentally compared with several other 3D shape representation methods.","PeriodicalId":271906,"journal":{"name":"Image Processing & Communications","volume":"96 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132782287","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

Evaluation of wimax admission control algorithms in mobile voip scenarios with batch arrivals and nbldpc fec 具有批量到达和无流量的移动voip场景下wimax准入控制算法的评估

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0072-5

A. Flizikowski, Marcin Przybyszewski, W. Holubowicz

{"title":"Evaluation of wimax admission control algorithms in mobile voip scenarios with batch arrivals and nbldpc fec","authors":"A. Flizikowski, Marcin Przybyszewski, W. Holubowicz","doi":"10.2478/v10248-012-0072-5","DOIUrl":"https://doi.org/10.2478/v10248-012-0072-5","url":null,"abstract":"Abstract This paper presents results of assessing quality of VoIP conversations in WiMAX networks using the nbLDPC (non-binary Low- Density Parity-Check) FEC in mobility scenarios that are based on the real world terrain charactristics around simulated BS. System under test (SUT) is instrumented with three Call Admission Control (CAC) mechanisms (namely EMAC, ARAC and nsc-ARAC). These algorithms are evaluated against controlling the VBR traffic that comes with burst arrivals. The first algorithm relies on calculating simple exponential weighted moving average (EWMA) of the overall resource consumption whereas the other two ARAC algorithms perform calculations discerning between the new, the ongoing and the finishing connections thus providing more accurate resource estimations (but the ARAC tracks the history of requests as well). In order to evaluate their performance authors rely on a cell-level based simulation environment that relies on the cooperative use of well known simulators - ns2 and Matlab. Previous work in the field is enhanced by improving the fidelity of proposed IEEE 802.16 simulator. Authors demonstrate the influence of increasing number of arrivals per one batch as well as testing the \"zero hour\" scenario (system saturation). In order to include nbLDPC codes in SUT’s mobile channels, a method called Link-To-System interface (L2S) has been implemented.","PeriodicalId":271906,"journal":{"name":"Image Processing & Communications","volume":"24 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125672365","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 processing methods of images and signals in electromagnetic infiltration process 电磁渗透过程中图像和信号的数字化处理方法

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0070-7

I. Kubiak

引用次数: 14

Uncertainty-tolerant scheduling strategies for grid computing: knowledge-based techniques with bio-inspired learning 网格计算的不确定性容忍调度策略:基于知识的生物启发学习技术

Image Processing & Communications Pub Date : 2013-03-01 DOI: 10.2478/v10248-012-0073-4

S. García-Galán, R. Pérez de Prado, J. E. Muñoz Expósito

{"title":"Uncertainty-tolerant scheduling strategies for grid computing: knowledge-based techniques with bio-inspired learning","authors":"S. García-Galán, R. Pérez de Prado, J. E. Muñoz Expósito","doi":"10.2478/v10248-012-0073-4","DOIUrl":"https://doi.org/10.2478/v10248-012-0073-4","url":null,"abstract":"Abstract Nowadays, diverse areas in science as high energy physics, astronomy or climate research are increasingly relying on experimental studies addressed with hard computing simulations that cannot be faced with traditional distributed systems. In this context, grid computing has emerged as the new generation computing platform based on the large-scale cooperation of resources. Furthermore, the use of grid computing has also been extended to several technology, engineering or economy areas such as financial services and construction engineering that demand high computer capabilities. Nevertheless, a major issue in the sharing of resources is the scheduling problem in a high-dynamic and uncertain environment where resources may become available, inactive or reserved over time according to local policies or systems failures. In this paper, a review of scheduling strategies dealing with uncertainty in systems information by the application of techniques such as fuzzy logic, neural networks or evolutionary algorithms is presented. Furthermore, this work is centered on the study of scheduling strategies based on fuzzy rulebased systems given their flexibility and ability to adapt to changes in grid systems. These knowledge-based strategies are founded on a fuzzy characterization of the system state and the application of the scheduler knowledge in the form of fuzzy rules to cope with the imprecise environment. Obtaining good rules also arises as a challenging problem. Hence, the main learning methods that allow the improvement and adaptation of the expert schedulers are introduced.","PeriodicalId":271906,"journal":{"name":"Image Processing & Communications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121694582","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

Long-Memory Dependence Statistical Models for DDoS Attacks Detection 基于长内存依赖性的DDoS攻击检测统计模型

Image Processing & Communications Pub Date : 1900-01-01 DOI: 10.1515/ipc-2015-0042

T. Andrysiak, Ł. Saganowski, M. Maszewski, Piotr Grad

引用次数: 1

Analysis of Application of Distributed Multi-Node, Multi-GPU Heterogeneous System for Acceleration of Image Reconstruction in Electrical Capacitance Tomography 分布式多节点、多gpu异构系统在电容层析成像图像加速重建中的应用分析

Image Processing & Communications Pub Date : 1900-01-01 DOI: 10.1515/ipc-2015-0035

M. Majchrowicz, Paweł Kapusta, L. Jackowska-Strumillo, D. Sankowski

{"title":"Analysis of Application of Distributed Multi-Node, Multi-GPU Heterogeneous System for Acceleration of Image Reconstruction in Electrical Capacitance Tomography","authors":"M. Majchrowicz, Paweł Kapusta, L. Jackowska-Strumillo, D. Sankowski","doi":"10.1515/ipc-2015-0035","DOIUrl":"https://doi.org/10.1515/ipc-2015-0035","url":null,"abstract":"Abstract 3D ECT provides a lot of challenging computational issues that have been reported in the past by many researchers. Image reconstruction using deterministic methods requires execution of many basic operations of linear algebra, such as matrix transposition, multiplication, addition and subtraction. In order to reach real-time reconstruction a 3D ECT computational subsystem has to be able to transform capacitance data into image in fractions of seconds. By assuming, that many of the computations can be performed in parallel using modern, fast graphics processor and by altering the algorithms time to achieve high quality image reconstruction will be shortened significantly. The research conducted while analysing ECT algorithms has also shown that, although dynamic development of GPU computational capabilities and its recent application for image reconstruction in ECT has significantly improved calculations time, in modern systems a single GPU is not enough to perform many tasks. Distributed Multi-GPU solutions can reduce reconstruction time to only a fraction of what was possible on pure CPU systems. Nevertheless performed tests clearly illustrate the need for developing a new distributed platform, which would be able to fully utilize the potential of the hardware. It has to take into account specific nature of computations in Multi-GPU systems.","PeriodicalId":271906,"journal":{"name":"Image Processing & Communications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131568060","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

History Dependent Viterbi Algorithm for Navigation Purposes of Line Following Robot 线路跟踪机器人导航的历史依赖Viterbi算法

Image Processing & Communications Pub Date : 1900-01-01 DOI: 10.1515/ipc-2015-0039

G. Matczak, P. Mazurek

引用次数: 5

The night vision distance measurement method dedicated for mobile robots 专用于移动机器人的夜视距离测量方法

Image Processing & Communications Pub Date : 1900-01-01 DOI: 10.1515/ipc-2015-0041

Jarosław Fastowicz, P. Lech

引用次数: 0