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Proceedings of IEEE International Conference on Multimedia Computing and Systems最新文献

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An effective video block placement scheme on VOD server based on multi-zone recording disks 一种有效的基于多区域光盘的视频点播服务器视频块放置方案
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609549
Jeong-Won Kim, Young-Uhg Lho, Kidong Chung
{"title":"An effective video block placement scheme on VOD server based on multi-zone recording disks","authors":"Jeong-Won Kim, Young-Uhg Lho, Kidong Chung","doi":"10.1109/MMCS.1997.609549","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609549","url":null,"abstract":"Proposes an efficient video block placement scheme of MZR (multi-zone recording) disks and evaluates its performance through a simulation model of a VOD (video on demand) server. The proposed placement scheme considers both the current disk products that have MZR characteristic and users' skewed access patterns for some popular videos. Popular video blocks of higher access rates are placed in outward zones, which have high bandwidth and sufficient space. To verify the proposed scheme, we tested its performance on a workstation which has two MZR disks while varying the skew factors. In addition, we formulated the transfer rate of a MZR disk, analyzed the theoretical maximum number of users supported and the required buffer size for each user on the proposed schemes. On performance evaluations, we considered the disk head scheduling, block placement methods and striping units. A series of experiments have shown that the proposed scheme considering the seek time and transfer rate of MZR disk is effective and can support more requests.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125193799","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: 15
A proportional-share scheduler for multimedia applications 多媒体应用程序的比例共享调度器
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609760
Manhee Kim, Hyogun Lee, Joonwon Lee
{"title":"A proportional-share scheduler for multimedia applications","authors":"Manhee Kim, Hyogun Lee, Joonwon Lee","doi":"10.1109/MMCS.1997.609760","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609760","url":null,"abstract":"This paper presents a proportional-share CPU scheduler which can support multimedia applications in a general-purpose workstation environment. For this purpose, we have extended the stride scheduler which is designed originally for conventional tasks. New scheduling parameters are introduced to specify timing requirements of multimedia applications. Through the, use of the rate regulator, the accuracy error of the scheduling is reduced to O(1). Separate task groups are proposed to represent both relative shares and absolute shares. The proposed scheduler is evaluated using a simulation study. The results show that the proposed scheduler achieves improved accuracy and adaptability as well as fairness.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125838728","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: 20
GRMS: a global resource management system for distributed QoS and criticality support GRMS:用于分布式QoS和关键性支持的全球资源管理系统
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609753
Jiandong Huang, Y. Wang, N. R. Vaidyanathan, Fengyun Cao
{"title":"GRMS: a global resource management system for distributed QoS and criticality support","authors":"Jiandong Huang, Y. Wang, N. R. Vaidyanathan, Fengyun Cao","doi":"10.1109/MMCS.1997.609753","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609753","url":null,"abstract":"GRMS is a global resource management system for providing middleware services for QoS- and criticality-based resource negotiation and adaptation across multiple computing nodes and communication networks. The paper focuses on the design aspect of GRMS. The authors introduce two key concepts-unified resource model and ripple scheduling-and describe the architectural design based on these concepts. Further, they present a decentralized end-to-end two-phase negotiation protocol with the functionality of distributed, dynamic QoS adjustment and stream preemption. They also discuss GRMS's system prototyping and report a set of preliminary experiment results obtained from it.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"696 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116116305","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
On the efficient retrieval of VBR video in a multimedia server 多媒体服务器中VBR视频的高效检索
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609559
S. Sahu, Zhi-Li Zhang, J. Kurose, D. Towsley
{"title":"On the efficient retrieval of VBR video in a multimedia server","authors":"S. Sahu, Zhi-Li Zhang, J. Kurose, D. Towsley","doi":"10.1109/MMCS.1997.609559","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609559","url":null,"abstract":"Considers the retrieval of variable bit-rate (VBR) video data from a storage server subject to the constraint that the server's buffer between its disk and network subsystem neither empties nor overflows. Our approach is based on the realization that there are two separate decisions to be made: firstly, to determine which data to access by what deadline, and secondly, how to schedule the data access. These decisions are the responsibilities of the data access and data scheduling policies. In the context of data access policies, we examine both the constant time length (CTL) and constant data length (CDL) policies. We find that increasing either the round length (for CTL access) or the fixed data size (for CDL access) allows data retrieval to be \"smoothed out\" over time. We then examine round-based and deadline-based data scheduling in conjunction with CTL and CDL data access policies. We find that two deadline-based scheduling policies that we propose (\"lazy EDF\" and \"workahead CTL-round\") allow a significant additional amount of smoothing to be achieved over traditional round-based data scheduling.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129414372","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
Optimization of adaptive data-flows for competing multimedia presentational database sessions 竞争多媒体表示数据库会话的自适应数据流优化
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609622
H. Thimm, W. Klas, Crispin Cowan, J. Walpole, C. Pu
{"title":"Optimization of adaptive data-flows for competing multimedia presentational database sessions","authors":"H. Thimm, W. Klas, Crispin Cowan, J. Walpole, C. Pu","doi":"10.1109/MMCS.1997.609622","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609622","url":null,"abstract":"Multimedia database systems must accommodate the capability to adapt the resource demand of executing presentations. This concerns adaptations across components of presentations as well as across concurrent sessions adhering to the individual needs of content providers and viewers. This paper describes the general concept of Reactive Playout Management (RPM) which provides an application-independent service for adaptive multimedia presentations. Furthermore, it proposes the PYLOT scheme (PlaYout Load OpTimization scheme) to enable RPM in best-effort architectures. In particular the global resource allocation routine of PYLOT is elaborated which manipulates the load proportions such that minimal total adjustment costs and maximal total adjustment profit are achieved, respectively. This linear programming based optimization is demonstrated by experimental results.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121303925","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: 14
A framework for supporting quality-based presentation of continuous multimedia streams 支持基于质量的连续多媒体流表示的框架
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609590
Thomas V. Johnson, A. Zhang
{"title":"A framework for supporting quality-based presentation of continuous multimedia streams","authors":"Thomas V. Johnson, A. Zhang","doi":"10.1109/MMCS.1997.609590","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609590","url":null,"abstract":"The authors investigate a framework for supporting the continuous and synchronized presentations of multimedia streams in a distributed multimedia system. They assume a situation in which the server and network transmissions provide sufficient support for the delivery of media objects. In this context, major issues regarding the enforcement of the smooth presentation of multimedia streams at client sites must be addressed. They develop various presentation scheduling algorithms that are adaptable to quality of service parameters. The proposed algorithms permit the local adjustment of unsynchronized presentations by gradually accelerating or retarding presentation components, rather than abruptly skipping or pausing the presentation materials. This framework can be readily used to facilitate various applications, including education and training.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114709513","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: 14
An architecture for multimedia over ATM real-time environments ATM实时环境下的多媒体体系结构
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609790
V. Groza, D. Ionescu, N. Georganas
{"title":"An architecture for multimedia over ATM real-time environments","authors":"V. Groza, D. Ionescu, N. Georganas","doi":"10.1109/MMCS.1997.609790","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609790","url":null,"abstract":"The binding architecture of multimedia networks is a versatile structure which permits an easy development over heterogeneous environments. There is evidence suggesting that the quality of many videoconferences is mediocre because of unexpected cell loss rates. Specific features of real time operating systems are used to improve the efficiency of the data transmission in a multimedia binding architecture by an adaptive control over the quality of service parameters of the source.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132325292","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 objective approach to assessing relative perceptual quality of MPEG-encoded video sequences 一种评估mpeg编码视频序列相对感知质量的客观方法
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609786
Lee Wang, R. Ramanujan, James A. Newhouse, M. Kaddoura, Atiq Ahamad, K. Thurber, H. Siegel
{"title":"An objective approach to assessing relative perceptual quality of MPEG-encoded video sequences","authors":"Lee Wang, R. Ramanujan, James A. Newhouse, M. Kaddoura, Atiq Ahamad, K. Thurber, H. Siegel","doi":"10.1109/MMCS.1997.609786","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609786","url":null,"abstract":"A novel objective approach to assessing the relative perceptual quality of MPEG-encoded video sequences is presented. Quality comparison of the original and filtered MPEG-encoded video sequences is performed directly in the frequency domain. Experimental results show a very good correlation between the objective quality measurement and the human subjective perception. This objective approach provides a sensible and meaningful automated quality measure for MPEG compression. The approach should become a viable tool to aid MPEG encoding optimization.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131752174","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
Progressive compression of 3D graphic models 三维图形模型的渐进压缩
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609586
Jiankun Li, Jin Li, C.-C. Jay Kuo
{"title":"Progressive compression of 3D graphic models","authors":"Jiankun Li, Jin Li, C.-C. Jay Kuo","doi":"10.1109/MMCS.1997.609586","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609586","url":null,"abstract":"A progressive coding method which encodes a 3D graphic model into an embedded bit stream is investigated in this research. The coder first encodes the coarsest resolution of the model, and then includes the finer details gradually. The embedding property allows the decoder to terminate the decoding at an arbitrary position in the compressed bit stream, and a more accurate model can be obtained when more bits are decoded. Numerical experiments are provided to demonstrate the excellent rate distortion performance and progressive compression performance of the new method.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"797 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116180766","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
A CORBA-based real-time stream service for ATM networks 基于corba的ATM网络实时流服务
Proceedings of IEEE International Conference on Multimedia Computing and Systems Pub Date : 1997-06-03 DOI: 10.1109/MMCS.1997.609799
Bhawani S. Sapkota, H. Pung, L. Ngoh, L. Wong
{"title":"A CORBA-based real-time stream service for ATM networks","authors":"Bhawani S. Sapkota, H. Pung, L. Ngoh, L. Wong","doi":"10.1109/MMCS.1997.609799","DOIUrl":"https://doi.org/10.1109/MMCS.1997.609799","url":null,"abstract":"Off-the-shelf CORBA implementations are not suitable for real-time applications due to their high processing overheads. A CORBA-based real time stream service (RTSS) is proposed to augment the multimedia handling capability of current CORBA implementations. RTSS provides object-oriented application programming interfaces (APIs) for the rapid development of applications involving exchanges of time-constraint continuous media data. These APIs allow applications to specify their network and host QoS requirements and honor them if they are admissible. RTSS operates directly over ATM adaptation layers but also supports legacy UDP and TCP for interoperability with existing TCP/IP applications. A high-level design overview is given.","PeriodicalId":302885,"journal":{"name":"Proceedings of IEEE International Conference on Multimedia Computing and Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116804053","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
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