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Video Scene Detection Based on Recurring Motion Patterns 基于重复运动模式的视频场景检测
2010 Second International Conferences on Advances in Multimedia Pub Date : 2010-06-13 DOI: 10.1109/MMEDIA.2010.26
Manfred del Fabro, L. Böszörményi
{"title":"Video Scene Detection Based on Recurring Motion Patterns","authors":"Manfred del Fabro, L. Böszörményi","doi":"10.1109/MMEDIA.2010.26","DOIUrl":"https://doi.org/10.1109/MMEDIA.2010.26","url":null,"abstract":"We present an algorithm for video scene detection based on the identification of recurring motion patterns within a video stream. The motion information is extracted in the compressed domain of H.264/AVC videos, no full decoding of the video stream is needed. Based on the motion information our algorithm identifies sequences of adjacent frames with similar motion. Throughout all identified motion sequences we are searching for recurring patterns. The pattern recurring most often is used for the segmentation of the video stream into scenes. The evaluation shows promising results.","PeriodicalId":238480,"journal":{"name":"2010 Second International Conferences on Advances in Multimedia","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133730105","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: 11
Applying Prediction Techniques to Reduce Uplink Transmission and Energy Requirements in Mobile Free-Viewpoint Video Applications 应用预测技术减少移动自由视点视频应用中的上行传输和能量需求
2010 Second International Conferences on Advances in Multimedia Pub Date : 2010-06-13 DOI: 10.1109/MMEDIA.2010.14
Clifford De Raffaele, C. J. Debono
{"title":"Applying Prediction Techniques to Reduce Uplink Transmission and Energy Requirements in Mobile Free-Viewpoint Video Applications","authors":"Clifford De Raffaele, C. J. Debono","doi":"10.1109/MMEDIA.2010.14","DOIUrl":"https://doi.org/10.1109/MMEDIA.2010.14","url":null,"abstract":"The increased efficiency of video compression algorithms, the improvements registered in reliability, data rates and quality of service of wireless transmission technologies, and the development of mobile multimedia terminals have made possible the implementation of Free-Viewpoint Video (FVV) technology on mobile platforms. The mobile environment however presents several restrictions. Two of these limiting factors being bandwidth constraints and energy availability in battery-operated mobile terminals. This paper looks at the possibility of employing prediction algorithms at the FVV server to anticipate the next viewpoint expected by the user. In doing so, the number of uplink requests is reduced to situations where the estimated view defers from the requested one and the associated transmissions required in retraining the algorithm once this occurs. Simulation results on two different prediction techniques demonstrate that the uplink transmission rate is reduced by up to 96.7% when emulating a conventional FVV usage scenario. Both prediction algorithms infer a substantial decrease in the mobile terminal’s power consumption and reduce the network’s uplink bandwidth utilization.","PeriodicalId":238480,"journal":{"name":"2010 Second International Conferences on Advances in Multimedia","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122433204","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
Using Context to Understand User Intentions in Image Retrieval 使用上下文来理解图像检索中的用户意图
2010 Second International Conferences on Advances in Multimedia Pub Date : 2010-06-13 DOI: 10.1109/MMEDIA.2010.35
Christian Hartvedt
{"title":"Using Context to Understand User Intentions in Image Retrieval","authors":"Christian Hartvedt","doi":"10.1109/MMEDIA.2010.35","DOIUrl":"https://doi.org/10.1109/MMEDIA.2010.35","url":null,"abstract":"This paper discusses how combining existing techniques in a new way may help improve the understanding of user intentions in image retrieval. This is an especially challenging task in situations where the information need of a user is ambiguous, or if the user is unable to express it. The suggestion made here is that combining two different approaches to image retrieval with the utilization of context information and user interaction will help alleviate this problem. This paper describes how an approach that uses visual data, textual data in the form of context information, and user interaction in the image retrieval process may be developed and evaluated.","PeriodicalId":238480,"journal":{"name":"2010 Second International Conferences on Advances in Multimedia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132384538","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
Measuring Quality of Experience on a Commercial Mobile TV Platform 商用移动电视平台体验质量的度量
2010 Second International Conferences on Advances in Multimedia Pub Date : 2010-06-13 DOI: 10.1109/MMEDIA.2010.12
Vlado Menkovski, Georgios Exarchakos, A. Liotta, A. Sánchez
{"title":"Measuring Quality of Experience on a Commercial Mobile TV Platform","authors":"Vlado Menkovski, Georgios Exarchakos, A. Liotta, A. Sánchez","doi":"10.1109/MMEDIA.2010.12","DOIUrl":"https://doi.org/10.1109/MMEDIA.2010.12","url":null,"abstract":"Learning more about the customers' perceived quality is of significant importance for service providers. This information can be used to better manage the system resources and provide more value to the users. However, it is often not easy to develop autonomic mechanisms that can accurately measure the delivered quality of multimedia services due to the subjectiveness of the perceived quality. While the most accurate methods involve subjective testing, which is costly and impractical, the existing objective ones lack of accuracy. In this work we present a methodology that uses limited initial subjective tests to develop prediction models for Quality of Experience (QoE) as perceived by the viewers. These prediction models are further used as part of a QoE estimation platform that assesses the value of perceived quality based on the underlying conditions of the system.","PeriodicalId":238480,"journal":{"name":"2010 Second International Conferences on Advances in Multimedia","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123713371","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: 22
Boundary-Based Measures for Evaluation of Color Image Segmentation 基于边界的彩色图像分割评价方法
2010 Second International Conferences on Advances in Multimedia Pub Date : 2010-06-13 DOI: 10.1109/MMEDIA.2010.34
B. Popescu, Andreea Iancu, M. Brezovan, D. Burdescu
{"title":"Boundary-Based Measures for Evaluation of Color Image Segmentation","authors":"B. Popescu, Andreea Iancu, M. Brezovan, D. Burdescu","doi":"10.1109/MMEDIA.2010.34","DOIUrl":"https://doi.org/10.1109/MMEDIA.2010.34","url":null,"abstract":"The present paper addresses the problem of image segmentation evaluation by comparing four different approaches. We are introducing a new method of salient object recognition with very good results relative to other already known object detection methods. We developed a simple evaluation framework in order to compare the results of our method with other segmentation methods. The experimental results offer a complete basis for parallel analysis with respect to the precision of our algorithm, rather than the individual efficiency.","PeriodicalId":238480,"journal":{"name":"2010 Second International Conferences on Advances in Multimedia","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116749693","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
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