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MULTIMEDIA '01最新文献

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MPEG-L/MRP: implementing adaptive streaming of MPEG videos for interactive internet applications MPEG- l /MRP:实现交互式互联网应用程序的自适应MPEG视频流
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500265
Susanne CJ Boll, W. Klas, M. Menth, C. Heinlein
{"title":"MPEG-L/MRP: implementing adaptive streaming of MPEG videos for interactive internet applications","authors":"Susanne CJ Boll, W. Klas, M. Menth, C. Heinlein","doi":"10.1145/500141.500265","DOIUrl":"https://doi.org/10.1145/500141.500265","url":null,"abstract":"Existing multimedia streaming technologies offer no specific support for user interaction like jumping to bookmarks in a video, or switching to reverse play. When the users, e.g., jump to a bookmark, the player requests frames for the new presentation point from the server and resumes playing only when the data has arrived. Our solution for this problem is the client prefetching the buffering strategy, MPEG-L/MRP, that ensures that the frames which are needed for a response to a possible user interaction are already in the client's buffer, which leads to qucik and smooth reaction to user interactions. In case of variable bandwidth, our MPEG-1 streaming approach selects only a subset of all frames to be fetched from the server and supports a smooth presentation at a reduced frame rate with correct timelines.The technical demonstration shows the interactive streaming of MPEG-videos and illustrates our buffering and prefetching strategy.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127093636","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: 7
Real-time personalized sports video filtering and summarization 实时个性化的体育视频过滤和汇总
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500264
D. Zhong, Raj Kumar, Shih-Fu Chang
{"title":"Real-time personalized sports video filtering and summarization","authors":"D. Zhong, Raj Kumar, Shih-Fu Chang","doi":"10.1145/500141.500264","DOIUrl":"https://doi.org/10.1145/500141.500264","url":null,"abstract":"We demonstrate a real-time fully automated software system for filtering important events in sports video. Events represent occurrences of actions or state changes in video content. In the current prototype, we demonstrate detection of pitching in baseball and serving in tennis. For wireless video applications, we propose and apply a unique notion of content-based adaptive streaming,in which video encoding rate and media modality is dynamically varied according to the event filtering results. Our system includes an event detection module, an adaptive encoding module, and a buffer management module for adaptive streaming. We achieve the real-time performance by exploring compressed-domain techniques and multi-stage multi-resolution content-analysis processes.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"24 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131008236","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
ELM-N: e-learning media navigator ELM-N:电子学习媒体导航器
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500269
C. Dorai, P. Kermani, Avare Stewart
{"title":"ELM-N: e-learning media navigator","authors":"C. Dorai, P. Kermani, Avare Stewart","doi":"10.1145/500141.500269","DOIUrl":"https://doi.org/10.1145/500141.500269","url":null,"abstract":"E-learning or learning via the Web is now changing the way universities and coprporations offer education and training. Rather than using conventional means for remotely distributing and delivering courses and classroom lectures, universities and enterprises are moving towards Web-based academic and training offerings. While content acquisition and distribution can be automated in a systematic fashion, research challenges remain in the area of personalized content delivery, access, and augmented interaction. Automated content indexing and annotation for easy and efficient access and navigation of various media elements associated with the course material become key takss in flexible content delivery and use. E-Learning Media Navigator (ELM-N) from IBM Research is a system with which a user can access and interact with online courses presented as audiovisual material, along with related slides and white broad contents in a time-synchronized fashion. In this demonstration, the system capabilities and research technologies behind them will be presented.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134045093","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
Personalizing video recorders using multimedia processing and integration 使用多媒体处理和集成个性化录像机
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500243
N. Dimitrova, R. Jasinschi, L. Agnihotri, J. Zimmerman, T. McGee, Dongge Li
{"title":"Personalizing video recorders using multimedia processing and integration","authors":"N. Dimitrova, R. Jasinschi, L. Agnihotri, J. Zimmerman, T. McGee, Dongge Li","doi":"10.1145/500141.500243","DOIUrl":"https://doi.org/10.1145/500141.500243","url":null,"abstract":"Current personal Vido recorders make it very easy for consumers to record whole TV programs. Our research however, focuses on personalizing TV at a sub-program level. We use a traditional Content-Based Information Retrieval system architecture consisting of archiving and retrieval modules. The archiving module employs a three-layered, multimodal integration framework to segment, analyze, characterize, and classify segments. The retrieval module relies on users personal preferences to deliver both full programs and video segments of interest. We tested retrieval concepts with real users and discovered that they see more value in segmenting non-narrative programs (e.g. news) than narrative programs (e.g. movies). We benchmarked individual algorithms and segment classification for celebrity and financial segments as instances of non-narrative content. For celebrity segments we obtained a total precision of 94.1% and recall of 85.7%, and for financial segments a total precision of 81.1% and a recall of 86.9%.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"253 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133668292","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
Experiences with MPEG-4 multimedia streaming 具有使用MPEG-4多媒体流媒体的经验
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500221
H. Shojania, Baochun Li
{"title":"Experiences with MPEG-4 multimedia streaming","authors":"H. Shojania, Baochun Li","doi":"10.1145/500141.500221","DOIUrl":"https://doi.org/10.1145/500141.500221","url":null,"abstract":"With the advent of next-generation multimedia technologies such as very-low bit rate MPEG-4 codec, multimedia streaming of high-quality video and audio has become a near-term reality. The high compression ratio and error resilience offered by the MPEG-4 standard promise near-term popularity for rich contents and exceptional quality to consumers over affordable Internet connections, such as xDSL, cable modem and 3G wireless networks. Audio and video streaming applications are at the center of such scenarios; and Quality-of-Service (QoS) support in such applications is critical to their widespread acceptance.To the best of our knowledge, there has been no existing open-source MPEG-4 multimedia streaming applications in the academic community, which leads to the lack of research results using MPEG-4 streaming, especially with respect to Quality-of-Service support. In this work, we have implemented an open-source MPEG-4 multimedia streaming testbed in IP-based networks. In this paper, we show our experiences and lessons learned with such a testbed. First, we describe the algorithms and solutions used in our implemention testbed, emphasizing several critical issues. Second, through extensive experiments, we demonstrate measurements of bandwidth requirements and data loss for streaming a set of multimedia samples with different bit rates over UDP, which is ubiquitously available in the TCP/IP protocol stack on all consumer operating systems. Finally, future work for further improvements is also discussed.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133377159","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: 8
Collaborative virtual environments for training 用于培训的协作虚拟环境
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500263
M. Hosseini, N. Georganas
{"title":"Collaborative virtual environments for training","authors":"M. Hosseini, N. Georganas","doi":"10.1145/500141.500263","DOIUrl":"https://doi.org/10.1145/500141.500263","url":null,"abstract":"As the cost of training individuals to learn how to use new technologies increases, the need for virtual environments that facilitate training becomes more noticeable. More specifically, the use of Collaborative Virtual Environments for training in industrial applications is of special interest. What follows is a discussion of two prototypes designed and implemented for the purpose of using Collaborative Virtual Environments in training scenarios.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"313 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133317954","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
PBIR: perception-based image retrieval-a system that can quickly capture subjective image query concepts pir:基于感知的图像检索-一个可以快速捕获主观图像查询概念的系统
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500260
E. Chang, K. Cheng, Wei-Cheng Lai, Ching-Tung Wu, Chengwei Chang, Yi-Leh Wu
{"title":"PBIR: perception-based image retrieval-a system that can quickly capture subjective image query concepts","authors":"E. Chang, K. Cheng, Wei-Cheng Lai, Ching-Tung Wu, Chengwei Chang, Yi-Leh Wu","doi":"10.1145/500141.500260","DOIUrl":"https://doi.org/10.1145/500141.500260","url":null,"abstract":"We describe the Perception-Based Image Retrieval (PBIR) system that we have built on our recently developed query-concept learning algorithms, MEGA and SVMActive. We show that MEGA and SVMActive can learn a complex image-query concept in a small number of user iterations (usually three to four) on a large, multi-category, high-dimensional image database.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"349 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122286552","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: 13
Indexing and retrieval of 3D models aided by active learning 主动学习辅助下的三维模型索引与检索
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500261
Cha Zhang, Tsuhan Chen
{"title":"Indexing and retrieval of 3D models aided by active learning","authors":"Cha Zhang, Tsuhan Chen","doi":"10.1145/500141.500261","DOIUrl":"https://doi.org/10.1145/500141.500261","url":null,"abstract":"We demonstrate a system for indexing and retrieval of 3D models aided by active learning. We propose a new set of region-based features for 3D models. Each model is treated as a solid volume with a uniform density. Features such as the volume-surface ratio, the moment invariants and the Fourier transform coefficients are efficiently calculated from the mesh model directly. Comparable retrieval performance is achieved with other features such as the cord histogram, the 3D shape spectrum, etc. To further improve the performance, we incorporate hidden annotation into our system. We propose to use active learning to improve the annotation efficiency. We show that with active learning, the system can perform better than random annotation, and the retrieval result improves rapidly with the number of annotated samples. Moreover, relevance feedback is included in the system and combined with active learning, which provides better user-adoptive retrieval results.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123921227","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: 80
A practical approach for modeling the quality of multimedia data 多媒体数据质量建模的实用方法
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500228
Kwan-Sang Na, D. Baik, Pan-koo Kim
{"title":"A practical approach for modeling the quality of multimedia data","authors":"Kwan-Sang Na, D. Baik, Pan-koo Kim","doi":"10.1145/500141.500228","DOIUrl":"https://doi.org/10.1145/500141.500228","url":null,"abstract":"One of the most important objectives of data engineering is to deliver high quality data to users. In this paper, we (1) discuss the definition, problems and improvements methods of data qwuality, and (2) propose a modeling methodology for improving the multimedia data quality. And then, we introduce the method for improving the quality of semantic data using the proposed methodology. In this example, we propose to measure and remove the data ambiguities for improving the data quality.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127346871","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: 4
Supporting audiovisual query using dynamic programming 支持使用动态规划的视听查询
MULTIMEDIA '01 Pub Date : 2001-10-01 DOI: 10.1145/500141.500202
M. Naphade, Roy Wang, Thomas S. Huang
{"title":"Supporting audiovisual query using dynamic programming","authors":"M. Naphade, Roy Wang, Thomas S. Huang","doi":"10.1145/500141.500202","DOIUrl":"https://doi.org/10.1145/500141.500202","url":null,"abstract":"A necessary capability for content-based retrieval is to support the paradigm of query by example. Most systems for video retrieval support queries using image sequences only. We present an algorithm for matching multimodal (audio-visual) patterns for the purpose of content-based video retrieval. The novel ability of our approach to use the information content in multiple media coupled with a strong emphasis on temporal similarity differentiates it from the state-of-the-art in content-based retrieval. At the core of the pattern matching scheme is a dynamic programming algorithm, which leads to a significant improvement in performance. Coupling the use of audio with video this algorithm can be applied to grouping of shots based on audio-visual similarity. We also support relevance feedback. The user can provide feedback to the system, by choosing clips, which are closer to the user's desired target. The system then automatically adjusts the relative weights or relevance of the media and fetches different sets of target clips accordingly. It is our observation that a few iterations of such feedback are generally sufficient, for retrieving the desired video clips.","PeriodicalId":416848,"journal":{"name":"MULTIMEDIA '01","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126239035","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
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