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A Component-based Authoring Environment for Creating Multimedia-RichMixed Reality 用于创建多媒体混合现实的基于组件的创作环境
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/031-040
D. F. Abawi, R. Dörner, P. Grimm
{"title":"A Component-based Authoring Environment for Creating Multimedia-RichMixed Reality","authors":"D. F. Abawi, R. Dörner, P. Grimm","doi":"10.2312/EGMM/MM04/031-040","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/031-040","url":null,"abstract":"Applications that seek to combine multimedia with Mixed Reality (MR) technologies in order to create multimediarich MR environments pose a challenge to authors who need to provide content for such applications. Founded on a component-based authoring paradigm, production processes as well as tools that serve as a supportive authoring environment for these authors are presented in this paper. For this, not only requirements that stem from multimedia authoring or MR authoring alone have been identified but also authoring tasks that are only present in the creation of multimedia-rich MR content. Concepts for supporting these tasks within a componentbased authoring framework (e.g. the specification of phantom objects) are presented. The resulting authoring tools are discussed - one of their main advantages is that they provide a direct preview of the content for the author. This allows multimedia authors who are not familiar with MR methodologies to quickly gain experience with multimedia-rich MR content creation.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133925997","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: 6
Tetrahedral Adaptive Grid for Parallel Hierarchical Tetrahedrization 并行分层四面体化的四面体自适应网格
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/125-133
Y. Takama, A. Kimura, Hiromi T. Tanaka
{"title":"Tetrahedral Adaptive Grid for Parallel Hierarchical Tetrahedrization","authors":"Y. Takama, A. Kimura, Hiromi T. Tanaka","doi":"10.2312/EGMM/MM04/125-133","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/125-133","url":null,"abstract":"Recent advances in volume scanning techniques have made the task of acquiring volume data of 3-D objects easier and more accurate. Since the quantity of such acquired data is generally very large, a volume model capable of compressing data while maintaining a specified accuracy is required. The objective of this work is to construct a multi-resolution tetrahedral representation of input volume data. This representation adapts to local field properties while preserving their discontinuities. In this paper, we present an accuracy-based adaptive sampling technique to construct a multi-resolution model, we call a tetrahedral adaptive grid, for hierarchical tetrahedrization of C1 continuous volume data. We have developed a parallel algorithm of tetrahedral adaptive grid generation that recursively bisects tetrahedral gird elements by increasing the number of grid nodes, according to local field properties and such as orientation and curvature of isosurfaces, until the entire volume has been approximated within a specified level of view-invariant accuracy. We have also developed a parallel algorithm that detects and preserves both C0 and C1 discontinuities of field values, without the formation of cracks which normally occur during independent subdivision. Experimental results obtained using a PC cluster system demonstrate the validity and effectiveness of the proposed approach.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128937798","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
A Chinese Remainder Theorem Oriented Information Hiding Scheme 一种面向中文剩余定理的信息隐藏方案
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/181-190
Chinchen Chang, T. Lu
{"title":"A Chinese Remainder Theorem Oriented Information Hiding Scheme","authors":"Chinchen Chang, T. Lu","doi":"10.2312/EGMM/MM04/181-190","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/181-190","url":null,"abstract":"Steganography is an information hiding technique that conveys secret information in a host signal using a secret method. Only the receivers and senders know the secret information. Many researchers have proposed their own steganographic techniques to hide information in various host signals, such as audios, videos, images, and so on. Nevertheless, most of the methods degrade the visual quality of the image when more information is hidden in the image. Therefore, this paper proposes a new steganographic scheme, which is based on the Chinese Remainder Theorem. The abbreviation of the scheme is CRTIH, and it not only conceals a larger amount of information in a hidden image but also upgrades the visual quality of the image.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122640201","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
Door Access Control Using Human Face and Height 基于人脸和高度的门禁控制
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/087-094
H. Zhang, R. Ma, Weimin Huang, Zhiyong Huang
{"title":"Door Access Control Using Human Face and Height","authors":"H. Zhang, R. Ma, Weimin Huang, Zhiyong Huang","doi":"10.2312/EGMM/MM04/087-094","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/087-094","url":null,"abstract":"Access control has much attracted research interest recently. In this paper, we propose a method using human face and height as human trait to recognize a person. We observe that eye location extracted from a human face is sta-ble to be used to compute his/her height to the ground. Using it together with face recognition can increase the ac-curacy of the access control. We have implemented the method on a PC installed with a stereo camera. The design criteria, techniques, implementation details, and performance testing are presented. Keywords: 3D reconstruction, gradient descent method, biometric fusion, application.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127954693","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
Progressive Image Transmission Using Singular Value Decomposition 基于奇异值分解的渐进图像传输
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/115-123
Chinchen Chang, Yi-Long Liu
{"title":"Progressive Image Transmission Using Singular Value Decomposition","authors":"Chinchen Chang, Yi-Long Liu","doi":"10.2312/EGMM/MM04/115-123","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/115-123","url":null,"abstract":"There are many progressive image transmission schemes using vector quantization-related schemes, but there are some problems associated with them. First, these schemes need to train a codebook, and this codebook will directly decide the quality of the recovered image. VQ-related PIT methods also need some time to search the codebook to find the indices of corresponding vectors. Thus, this paper looks for a new PIT method without VQ. By applying SVD to PIT, image will be decomposed into three matrices. After decomposition, certain processes are applied to these matrices, and PIT will be achieved by transmitting these three matrices. The use of the proposed method resulted in higher image quality than would result from the use of traditional methods, like the bit-plane method and the improved bit-plane method, in the experiments conducted in this paper. This paper proposes a new way of PIT, and this new method is achieved PIT without VQ.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"74 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131708463","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
Estimating Traffic Density Using Sounds of Moving Vehicles 利用移动车辆的声音估计交通密度
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/021-029
Jien Kato, Y. Hiramatsu, Toyohide Watanabe
{"title":"Estimating Traffic Density Using Sounds of Moving Vehicles","authors":"Jien Kato, Y. Hiramatsu, Toyohide Watanabe","doi":"10.2312/EGMM/MM04/021-029","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/021-029","url":null,"abstract":"This paper proposed a method for automatically estimating traffic density by using sounds of moving vehicles. The approach is based on the idea of recognition of the temporal variations that appear on the power signals when vehicles pass through an observation point. The local temporal variations in small periods of time are extracted by wavelet transformation and are used as an observation sequence for a hidden Markov model, which models the global temporal variations of the power signal. The passages of vehicles are detected based on the state transitions of the HMM. The occlusion problem due to the overlapping of the sounds of moving vehicles are dealt with by corresponding two set of information from a stereo microphone. Experimental results show that with some restrictions, the passages of vehicles are able to be detected from road traffic sounds in good accuracy, by the proposed method.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127595203","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
A New Approach to Multimedia Information Filtering Based on its Structure 基于结构的多媒体信息过滤新方法
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/059-068
Xiaodi Huang, J. Yong
{"title":"A New Approach to Multimedia Information Filtering Based on its Structure","authors":"Xiaodi Huang, J. Yong","doi":"10.2312/EGMM/MM04/059-068","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/059-068","url":null,"abstract":"In information filtering systems, the multimedia documents are sequentially presented to users based on the user relevance values. This paper argues that the presented multimedia documents should be both important and relevant to the users. The importance of a document is determined by its relations to others in the collection. All users are supposed to look for important and relevant documents. Based on this view, a structure-based filtering framework is described, which incorporates the characteristics of the importance and relevance of multimedia documents. An approach to calculating importance values of multimedia documents and then combining them into relevance values of multimedia documents is proposed to improve the representation of user profiles. An example is provided.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130133993","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
Remote Raster Image Browsing Based on Fast Content Reduction forMobile Environments 移动环境下基于快速内容缩减的远程栅格图像浏览
Eurographics Multimedia Workshop Pub Date : 2004-10-27 DOI: 10.2312/EGMM/MM04/013-019
R. Rosenbaum, H. Schumann
{"title":"Remote Raster Image Browsing Based on Fast Content Reduction forMobile Environments","authors":"R. Rosenbaum, H. Schumann","doi":"10.2312/EGMM/MM04/013-019","DOIUrl":"https://doi.org/10.2312/EGMM/MM04/013-019","url":null,"abstract":"Enhanced browsing techniques for digital imagery and small displays facilitate the exploration process of large images often by using new ways to represent the image. Reduction of image content is such an approach mostly linked with need for strong processing power. To overcome this, we propose the use of the Discrete Wavelet Transform (DWT), which inherently separates detail and approximation of the image. By enhancing the detail and removing the approximation directly in wavelet domain, a very fast content reduction can be achieved. Due to its flexibility, JPEG2000 is used as basis for an efficient system for remote image browsing. To satisfy demands which are imposed by the use of current mobile hardware, every stage of the image communication pipeline is adapted and tightly coupled to the used browsing technique to reduce the need for processing power and bandwidth.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127340466","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: 12
Multi-Media Access and Presentation in a Theatre Information Environment 剧场信息环境下的多媒体接入与呈现
Eurographics Multimedia Workshop Pub Date : 2000-02-13 DOI: 10.1007/978-3-7091-6771-7_22
A. Nijholt
{"title":"Multi-Media Access and Presentation in a Theatre Information Environment","authors":"A. Nijholt","doi":"10.1007/978-3-7091-6771-7_22","DOIUrl":"https://doi.org/10.1007/978-3-7091-6771-7_22","url":null,"abstract":"","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130068461","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
DynaVideo - A Dynamic Video Distribution Service 动态视频分发服务
Eurographics Multimedia Workshop Pub Date : 1900-01-01 DOI: 10.2312/EGMM/egmm01/095-106
Luiz Eduardo Cunha Leite, R. Alves, Guido Lemos de Souza Filho, T. Batista
{"title":"DynaVideo - A Dynamic Video Distribution Service","authors":"Luiz Eduardo Cunha Leite, R. Alves, Guido Lemos de Souza Filho, T. Batista","doi":"10.2312/EGMM/egmm01/095-106","DOIUrl":"https://doi.org/10.2312/EGMM/egmm01/095-106","url":null,"abstract":"Most solutions proposed to implement audio and video distribution services have been designed for speci c infrastructures or have been tailored to speci c application requirements, such as stream and clients types which will be supported by the service. Other important aspect in this context is that the performance of distributed services is becoming increasingly variable due to changing load patterns and user mobility. This paper presents the Dynamic Video Distribution Service DynaVideo. The service may be designed to distribute video in a way that is independent of the video format and to interact with di erent types of clients. The main feature of DynaVideo is the ability to con gure the service dynamically to a speci c demand.","PeriodicalId":268090,"journal":{"name":"Eurographics Multimedia Workshop","volume":"1 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":"129815297","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
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