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2009 International Conference on CyberWorlds最新文献

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Interactive Surface Design and Manipulation Using PDE-Method through Autodesk Maya Plug-in 通过Autodesk Maya插件使用pde方法进行交互表面设计和操作
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.49
Eyad Elyan, H. Ugail
{"title":"Interactive Surface Design and Manipulation Using PDE-Method through Autodesk Maya Plug-in","authors":"Eyad Elyan, H. Ugail","doi":"10.1109/CW.2009.49","DOIUrl":"https://doi.org/10.1109/CW.2009.49","url":null,"abstract":"This paper aims to propose a method for geometric design, modelling and shape manipulation using minimum input design parameters. Here, we address the method for the construction of 3D geometry based on the use of Elliptic Partial Differential Equations (PDE). The geometry corresponding to an object is treated as a set of surface patches, whereby each surface patch is represented using four boundary curves in the 3D space that formulate the appropriate boundary conditions for the chosen PDE. We present our methodology using a plugin that was developed utilizing Maya API. The plug-in provides the user with tools that could be used easily and effectively for designing purposes. Maya is a popular 3D modelling tool. Various types of shapes with different complexities are presented here. Our proposed method allow the designer to utilize the Maya functionality for sketching curves in the 3D space that represents the outline of arbitrary shapes, construct the corresponding model using the PDE method, deform and sculpt these models interactively by editing the boundary curves.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115359619","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
Multi-platform Human Computer Interaction in Converged Media Spaces 融合媒体空间中的多平台人机交互
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.26
D. Robison, I. Palmer, P. Excell, R. Earnshaw, O. A. Salem
{"title":"Multi-platform Human Computer Interaction in Converged Media Spaces","authors":"D. Robison, I. Palmer, P. Excell, R. Earnshaw, O. A. Salem","doi":"10.1109/CW.2009.26","DOIUrl":"https://doi.org/10.1109/CW.2009.26","url":null,"abstract":"The boundaries between different kinds of media spaces are complex and challenging. The convergence of computing, media, and telecommunications produces environments that contain elements of their origins, but also contain new components that allow interaction in new ways by new users with new kinds of information. This poses problems for effective human computer interaction and human media interaction because the paradigms are not well understood. Converged environments are driving these new uses just as the first PCs supported keyboards and then WIMP interfaces. Traditional models of human computer interaction are not adequate to deal with this complexity, and the shifting of the boundaries brought about by convergence.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115366184","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
A Short Review of Methods for Face Detection and Multifractal Analysis 人脸检测与多重分形分析方法综述
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.47
Moi Hoon Yap, H. Ugail, R. Zwiggelaar, Bashar A. Rajoub, Victoria Doherty, S. Appleyard, Gemma Hurdy
{"title":"A Short Review of Methods for Face Detection and Multifractal Analysis","authors":"Moi Hoon Yap, H. Ugail, R. Zwiggelaar, Bashar A. Rajoub, Victoria Doherty, S. Appleyard, Gemma Hurdy","doi":"10.1109/CW.2009.47","DOIUrl":"https://doi.org/10.1109/CW.2009.47","url":null,"abstract":"The purpose of this paper is to present short reviews the face detection techniques and to study the effect of Multifractal analysis in detecting facial features. In reviewing the existing techniques, we have compared the performance of Nilsson et al’s algorithm, Haar Training implemented within Open Source Computer Vision Library (OpenCV) and Keinzle’s algorithm in face detection. Then, we have produced some experimental results suggesting that the Multifractal approach would help to extract key facial features of a human face. We conclude the paper with some discussions on how the work can be taken further.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"2009 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123815883","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
Education in Virtual Worlds: Virtual Storytelling 虚拟世界中的教育:虚拟故事
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.57
Polina Danilicheva, S. Klimenko, Y. Baturin, A. Serebrov
{"title":"Education in Virtual Worlds: Virtual Storytelling","authors":"Polina Danilicheva, S. Klimenko, Y. Baturin, A. Serebrov","doi":"10.1109/CW.2009.57","DOIUrl":"https://doi.org/10.1109/CW.2009.57","url":null,"abstract":"This paper is dedicated to the idea of studying in virtual worlds and discusses how virtual storytelling technology (VST) can provide an educational process. We try to answer the question — is it possible to substitute a real learning environment with a fully immersive 3D virtual space? And if so, what role should a virtual teacher play and what skills should he have? We describe several advantages that virtual environment (VE) has as compared to an ordinary classroom. It enables children to explore a phenomenon involved and gives them a strong incentive to study. Further, in VE we can transfer a lesson to inaccessible places and carry out demonstrations and experiments that are unrealizable on Earth. We consider the relationship between VST and game-like environments. We present some particular educational applications developed at our institute on the basis of Avango VR-system. Finally, we discuss the future of educational virtual environments and virtual storytelling.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121179768","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: 33
Watermarking H.264/AVC by Modifying DC Coefficients 修改DC系数对H.264/AVC进行水印
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.21
M. A. Ali, E. Edirisinghe
{"title":"Watermarking H.264/AVC by Modifying DC Coefficients","authors":"M. A. Ali, E. Edirisinghe","doi":"10.1109/CW.2009.21","DOIUrl":"https://doi.org/10.1109/CW.2009.21","url":null,"abstract":"This paper proposes a novel method of embedding a watermark in H.264 AVC video coding standard. The proposed method works in the transform domain by embedding the watermark in the residual DC values of the 4 ×4 intra-prediction blocks. The DC values that are to contain a watermark bit are chosen randomly. The set of random values that are used to select the DC values are considered to be a “key”. This key is made available at the receiver side in order to extract the watermark. Experimental results show that the technique is transparent with minimal effect on the host video sequence. Further, since only the DC coefficients are utilized to contain the watermark, the embedded watermark is resistant to compression.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257159","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
General Concept of Repairing CAD-Models 维修cad模型的一般概念
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.53
A. Emelyanov, Yuri Astakhov, S. Klimenko
{"title":"General Concept of Repairing CAD-Models","authors":"A. Emelyanov, Yuri Astakhov, S. Klimenko","doi":"10.1109/CW.2009.53","DOIUrl":"https://doi.org/10.1109/CW.2009.53","url":null,"abstract":"The presented work is related to the problem of repairing incomplete reconstructed (damaged) CAD-models. To solute this problem, a general concept of the repairing, that uses various types of mathematical fields, is proposed. This concept provides an open framework to use together various methods of missing surface estimation. Many of existing ones can be embedded in this framework by defining the corresponding fields. The concept provides that during the repairing process the embedded methods supplement each other to achieve the best result. Ability of the concept to be effectively used to repair even heavy damaged CAD-models has been proved.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126422638","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
Virtual Interactive Communities: Capita Selecta in Multi-disciplinary Demand-Driven Research 虚拟互动社区:多学科需求驱动研究中的人均选择
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.33
P. Quax, W. Lamotte, F. Reeth
{"title":"Virtual Interactive Communities: Capita Selecta in Multi-disciplinary Demand-Driven Research","authors":"P. Quax, W. Lamotte, F. Reeth","doi":"10.1109/CW.2009.33","DOIUrl":"https://doi.org/10.1109/CW.2009.33","url":null,"abstract":"Nowadays, virtual communities are an integral part of the Internet experience. Prime examples are the 3D communities such as Second Life and There.com. At the other end of the spectrum, simpler social web applications such as Facebook are more popular than ever. All of these applications share a common background (instant communication, large user groups,...) but vary greatly in their capabilities. In this paper, we will focus on three of the aspects required for virtual interactive communities: communication, visualization and scalability. Instead of sticking to a theoretical discussion, we will show state-of-the-art examples, based on actual projects that are undertaken on demand from the industry and in a multi-disciplinary context.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"705 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115124285","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 efficient Image Retrieval through DCT Histogram Quantization 基于DCT直方图量化的高效图像检索
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.61
A. Mohamed, F. Khelifi, Ying Weng, Jianmin Jiang, S. Ipson
{"title":"An efficient Image Retrieval through DCT Histogram Quantization","authors":"A. Mohamed, F. Khelifi, Ying Weng, Jianmin Jiang, S. Ipson","doi":"10.1109/CW.2009.61","DOIUrl":"https://doi.org/10.1109/CW.2009.61","url":null,"abstract":"This paper proposes a new simple method of Discrete Cosine Transform (DCT) feature extraction that is used to accelerate the speed and decrease the storage needed in the image retrieving process. Image features are accessed and extracted directly from JPEG compressed domain. This method extracts and constructs a feature vector of histogram quantization from partial DCT coefficient in order to count the number of coefficients that have the same DCT coefficient over all image blocks. The database image and query image is equally divided into a non overlapping 8X8 block pixel, each of which is associated with a feature vector of histogram quantization derived directly from discrete cosine transform DCT. Users can select any query as the main theme of the query image. The retrieved images are those from the database that bear close resemblance with the query image and the similarity is ranked according to the closest similar measures computed by the Euclidean distance. The experimental results are significant and promising and show that our approach can easily identify main objects while to some extent reducing the influence of background in the image and in this way improves the performance of image retrieval.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121129906","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: 27
Calculate the Energy of Active Regions and Solar Disk on Satellite Images for Real-Time Solar Flare Forecasting 利用卫星图像计算活动区和太阳盘的能量，用于太阳耀斑的实时预报
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.18
O. Ahmed, Rami Qahwaji, T. Colak, S. Ipson, T. D. D. Wit
{"title":"Calculate the Energy of Active Regions and Solar Disk on Satellite Images for Real-Time Solar Flare Forecasting","authors":"O. Ahmed, Rami Qahwaji, T. Colak, S. Ipson, T. D. D. Wit","doi":"10.1109/CW.2009.18","DOIUrl":"https://doi.org/10.1109/CW.2009.18","url":null,"abstract":"It is extremely important to design preventive measures to avoid or mitigate the influence of space weather. Severe solar activities could have a catastrophic impact on human activities in general i.e. damaging satellites, flight navigation, power distribution stations, telecommunications, etc. In this paper, a new model has been designed and implemented to calculate the energy of solar active regions and the solar disk energy. The method has been tested in a series of experiments and a relationship has been found between the calculated energies and solar flare events. A final automated real-time model will be designed later to provide flare forecasting, based on the proposed model.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114708700","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
Dynamic Hand Gesture Tracking and Recognition for Real-Time Immersive Virtual Object Manipulation 实时沉浸式虚拟物体操作的动态手势跟踪与识别
2009 International Conference on CyberWorlds Pub Date : 2009-09-07 DOI: 10.1109/CW.2009.22
Gan Lu, L. Shark, G. Hall, U. Zeshan
{"title":"Dynamic Hand Gesture Tracking and Recognition for Real-Time Immersive Virtual Object Manipulation","authors":"Gan Lu, L. Shark, G. Hall, U. Zeshan","doi":"10.1109/CW.2009.22","DOIUrl":"https://doi.org/10.1109/CW.2009.22","url":null,"abstract":"Immersive visualisation is increasingly being used for comprehensive and rapid analysis of objects in 3D and object dynamic behaviour in 4D. Challenges are therefore presented to provide natural user interaction to enable effortless virtual object manipulation. Presented in this paper is the development and evaluation of a human-computer interaction system based on natural hand gestures. By employing a hybrid inertial and ultrasonic tracking system to provide the absolute positions and orientations of the user’s head and hands as well as a pair of high degrees-of-freedoms data gloves to provide the relative positions and orientations of finger joints and tips in both hands, the proposed system is shown to be able to automatically track and recognise a number of simple hand gestures. The effectiveness and potential of the proposed system is demonstrated through the five basic object manipulation tasks involving selection, release, translation, rotation and scaling of a 3D virtual cube.","PeriodicalId":171328,"journal":{"name":"2009 International Conference on CyberWorlds","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125792399","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: 28
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