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Proceedings. IEEE International Conference on Multimedia and Expo最新文献

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Smartcards with biometric user verification 具有生物识别用户验证功能的智能卡
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035688
B. Struif, D. Scheuermann
{"title":"Smartcards with biometric user verification","authors":"B. Struif, D. Scheuermann","doi":"10.1109/ICME.2002.1035688","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035688","url":null,"abstract":"If a smartcard provides security functions such as electronic signature creation, valuables such as electronic money and/or sensitive data such as medical data, then the smartcard has to verify that it is used by the legitimate cardholder. For this purpose, the user has usually to present a PIN. Since smartcards become more and more powerful, it is feasible to implement on-card matching algorithms allowing to perform a biometric user verification in the smartcard. The contribution of FhG-SIT in this field consists of participation in standardisation and the development of on-card matching algorithms.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"33 1","pages":"589-592 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81409570","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: 5
Implementing congestion control in the real world 在现实世界中实现拥塞控制
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035802
L. Gharai, C. Perkins
{"title":"Implementing congestion control in the real world","authors":"L. Gharai, C. Perkins","doi":"10.1109/ICME.2002.1035802","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035802","url":null,"abstract":"It is well known that congestion control is a key issue for the safe deployment of multimedia applications over IP. We describe our initial experiences implementing TCP-friendly congestion control in a system designed to deliver HDTV content over IP networks. In particular we discuss the effects of packet reordering on the calculated throughput, and highlight the problems this can pose for high-rate applications.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"10 1","pages":"397-400 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84825264","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
The inductive inverse kinematics algorithm using uniform posture map 采用均匀姿态映射的归纳逆运动学算法
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035877
Jin Ok Kim, B. Lee, C. Chung
{"title":"The inductive inverse kinematics algorithm using uniform posture map","authors":"Jin Ok Kim, B. Lee, C. Chung","doi":"10.1109/ICME.2002.1035877","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035877","url":null,"abstract":"Inverse kinematics is a very useful method to control the posture of an articulated body. In most inverse kinematics processes, the major matter of concern is not the actual posture of an articulated body, but the position and direction of the end effector. In some applications, such as 3D character animation, however, it could be more important to generate the overall natural posture of a character rather than to place the end effector in its exact position. Indeed, when an animator wants to modify the posture of a human-like 3D character with many physical constraints, he actually has to undergo many a trial-and-error to generate a realistic posture of the character. The inductive inverse kinematics (IIK) algorithm using uniform posture map (UPM) is proposed to control the posture of human-like 3D characters. The proposed algorithm quantizes human behavior without distortion to generate a UPM, and then generates a natural posture by searching the UPM. If necessary, the resulting posture can be compensated with traditional CCD (cyclic coordinate descent). The proposed method can be applied in various fields such as 3D character animation based on the key frame method, 3D games and virtual reality.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"18 1","pages":"697-700 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89198237","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
Construction of facial expressions using a muscle-based feature model 基于肌肉特征模型的面部表情构建
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035820
Yi-Chih Liu, Hajime Sato, N. Terashima, J. Ohya
{"title":"Construction of facial expressions using a muscle-based feature model","authors":"Yi-Chih Liu, Hajime Sato, N. Terashima, J. Ohya","doi":"10.1109/ICME.2002.1035820","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035820","url":null,"abstract":"An efficient method for constructing facial images for use in telecommunication applications is proposed. This method uses a simple 3D feature model, which consists of polygons, which describe the shape of the face, and elastic linear springs, which simulate the natural movements of facial muscles. This method requires only two orthogonal facial images, and could easily be implemented on a relatively low-spec PC. Experimental results showed good results that various facial expressions could be synthesized and displayed from arbitrary directions.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"137 1","pages":"469-472 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89776374","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
Watermarking of sets of polygonal lines using fusion techniques 利用融合技术对多边形线集进行水印
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035674
A. Giannoula, N. Nikolaidis, I. Pitas
{"title":"Watermarking of sets of polygonal lines using fusion techniques","authors":"A. Giannoula, N. Nikolaidis, I. Pitas","doi":"10.1109/ICME.2002.1035674","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035674","url":null,"abstract":"A blind watermarking method for the copyright protection of sets of polygonal lines in vector graphics images and GIS data (elevation contour maps) is presented. The paper focuses mainly on the use of simple fusion rules for combining the detector outputs from each polygonal line in order to come up with a global detection result. Experimental comparison of the various fusion methods using both synthetic and real data (elevation maps) is provided.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"14 1","pages":"549-552 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87779946","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: 32
Automatic object extraction and dynamic bitrate allocation for second generation video coding 第二代视频编码的自动目标提取和动态比特率分配
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035826
F. Moschetti, Giuseppe Covitto, F. Ziliani, A. Mecocci
{"title":"Automatic object extraction and dynamic bitrate allocation for second generation video coding","authors":"F. Moschetti, Giuseppe Covitto, F. Ziliani, A. Mecocci","doi":"10.1109/ICME.2002.1035826","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035826","url":null,"abstract":"We describe a system for automatic objects extraction and dynamic bitrate allocation in a second generation object based video coder, targeting surveillance sequences. We combine model-based statistical change detection with a multiresolution-based approach for object extraction. Masks are redefined at a block level resolution and refined to improve the coding quality exploiting spatio-temporal considerations. We propose a dynamic adaptation of the quantization step of the MPEG-4 coder, based on motion information of the extracted objects. The results outperform traditional frame based coders at very low bit-rates. The masks proposed dramatically improve the coding performance, even when compared to ideally extracted masks.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"19 1","pages":"493-496 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84009748","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
Feature space mutual information in speech-video sequences 语音-视频序列的特征空间互信息
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035605
T. Butz, J. Thiran
{"title":"Feature space mutual information in speech-video sequences","authors":"T. Butz, J. Thiran","doi":"10.1109/ICME.2002.1035605","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035605","url":null,"abstract":"We present an approach to directly study mutual relationships between audio and video signals for multimedia applications. The presented approach is mathematically based on information theory and is closely related to information theoretic classification. We show that very simple features of the audio- resp. video-channel can already contain lots of mutual information between both modalities. The mathematical approach is very general though and not restricted to the presented multimedia application.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"2673 1","pages":"361-364 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84014720","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: 18
MESH: measuring errors between surfaces using the Hausdorff distance MESH:利用豪斯多夫距离测量表面之间的误差
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035879
Nicolas Aspert, Diego Santa Cruz, T. Ebrahimi
{"title":"MESH: measuring errors between surfaces using the Hausdorff distance","authors":"Nicolas Aspert, Diego Santa Cruz, T. Ebrahimi","doi":"10.1109/ICME.2002.1035879","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035879","url":null,"abstract":"This paper proposes an efficient method to estimate the distance between discrete 3D surfaces represented by triangular 3D meshes. The metric used is based on an approximation of the Hausdorff distance, which has been appropriately implemented in order to reduce unnecessary computation and memory usage. Results show that when compared to similar tools, a significant gain in both memory and speed can be achieved.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"9 1","pages":"705-708 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88243389","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: 809
Structuring the personal multimedia collection of a mobile device user based on geolocation 基于地理位置构建移动设备用户的个人多媒体集合
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035561
Marc Gelgon, Kevin Tilhou
{"title":"Structuring the personal multimedia collection of a mobile device user based on geolocation","authors":"Marc Gelgon, Kevin Tilhou","doi":"10.1109/ICME.2002.1035561","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035561","url":null,"abstract":"This paper addresses a still original issue at the crossroads of multimedia data analysis for content-based retrieval, and wearable computing. As users are acquiring multimedia content personal mobile devices, they are getting also undergoing information overflow. The problem of structuring the content into time-oriented meaningful episodes is addressed, and we argue that geographical location processing is crucial, as a complement to processing audiovisual material. A technique for model-based temporal structuring of one's trajectory during a day is presented, based on a Bayesian/MAP approach, that generates one or several summaries. Experimental results illustrate the applicative interest of the problem addressed and validates the proposed solution.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"25 1","pages":"241-244 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88362994","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
Optimized video streaming over lossy networks with real-time estimation of end-to-end distortion 优化视频流在有损网络与实时估计端到端失真
Proceedings. IEEE International Conference on Multimedia and Expo Pub Date : 2002-11-07 DOI: 10.1109/ICME.2002.1035918
Rui Zhang, S. Regunathan, K. Rose
{"title":"Optimized video streaming over lossy networks with real-time estimation of end-to-end distortion","authors":"Rui Zhang, S. Regunathan, K. Rose","doi":"10.1109/ICME.2002.1035918","DOIUrl":"https://doi.org/10.1109/ICME.2002.1035918","url":null,"abstract":"This paper is concerned with adaptive and robust video streaming over lossy networks. A general system is described which is compatible with virtually all application settings. The delivery procedure is optimized within a rate-distortion framework with the aid of an efficient real-time end-to-end distortion estimation algorithm. The estimate fully accounts for the effects of (prior) quantization, packet loss and error propagation, as well as error concealment. It features high accuracy and low complexity, and requires a small amount of pre-computed side information. It is shown that various error-resilient schemes can be optimized within the proposed framework. In particular, unequal error protection through forward error control is employed in the simulations to demonstrate the achievable performance gains.","PeriodicalId":90694,"journal":{"name":"Proceedings. IEEE International Conference on Multimedia and Expo","volume":"21 1","pages":"861-864 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86612796","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: 23
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