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

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A time-scale dependent disk scheduling scheme for multimedia-on-demand servers 基于时间尺度的多媒体按需服务器磁盘调度方案
H. Pan, L. Ngoh, A. Lazar
{"title":"A time-scale dependent disk scheduling scheme for multimedia-on-demand servers","authors":"H. Pan, L. Ngoh, A. Lazar","doi":"10.1109/MMCS.1996.535025","DOIUrl":"https://doi.org/10.1109/MMCS.1996.535025","url":null,"abstract":"We present a producer-consumer model of multimedia-on-demand servers. The producer retrieves media data from a disk and places it into a set of buffers while the consumer sends out the data in the buffers to the users. We develop for the producer a time-scale dependent buffer-inventory-based dynamic scheduling scheme named /spl sigma/-BIDS which guarantees to meet the continuity requirement and no-loss of data for each media stream. The scheme introduces a time-scale dependent peak consumption rate and a virtual cycle time to smooth out the impact of bursty data of variable-bit-rate streams, thus improving the maximum admissible load of requests. A straightforward admission control mechanism with quality-of-service guarantees is then established based on two simple conditions respectively on load and buffer size. Our scheduling scheme is very easy to implement, and experiments carried out with an actual disk system and real video stream data verify the effectiveness of the scheme.","PeriodicalId":371043,"journal":{"name":"Proceedings of the Third IEEE International Conference on Multimedia Computing and Systems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127581245","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
Digital watermarks for audio signals 音频信号的数字水印
L. Boney, A. Tewfik, K. N. Hamdy
{"title":"Digital watermarks for audio signals","authors":"L. Boney, A. Tewfik, K. N. Hamdy","doi":"10.1109/MMCS.1996.535015","DOIUrl":"https://doi.org/10.1109/MMCS.1996.535015","url":null,"abstract":"We present a novel technique for embedding digital \"watermarks\" into digital audio signals. Watermarking is a technique used to label digital media by hiding copyright or other information into the underlying data. The watermark must be imperceptible or undetectable by the user and should be robust to attacks and other types of distortion. In our method, the watermark is generated by filtering a PN-sequence with a filter that approximates the frequency masking characteristics of the human auditory system. It is then weighted in the time domain to account for temporal masking. We discuss the detection of the watermark and assess the robustness of our watermarking approach to attacks and various signal manipulations.","PeriodicalId":371043,"journal":{"name":"Proceedings of the Third IEEE International Conference on Multimedia Computing and Systems","volume":"210 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":"121236341","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
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