| Richard A. Staehli "Quality of Service Specification for Resource Management in Multimedia Systems", Ph.D. Dissertation, Oregon Graduate Institute of Science and Technology, January 1996. 159 |
....is used by the storage system to improve performance. Other examples of this approach include collective I O operations in a parallel file system [20] application defined operations on structured files [13] and domain specific microlanguages [30] such as complex content multimedia specifications [36]. 3 Dynamic Sets To better understand how applications could use dynamic sets, consider a search using the Unix command grep, such as grep pattern .c . Currently, the shell expands the wildcard .c into an alphabetized list of filenames, and grep openseach of these files in that order. For ....
STAEHLI, R. Quality of Service Specification for Resource Management in Multimedia Systems. PhD thesis, Department of Computer Science and Engineering, Oregon Graduate Institute, 1996. Available as ftp://cse.ogi.edu/pub/tech-reports/1996/96-TH-001.ps.gz.
....several users in unpredictable ways, requiring adaptation to varying resource availability. This thesis describes the architecture of a real time video and audio player integrating approaches to these requirements. It is based on a QoS model of independent content, view, and quality definitions [31, 33]. Authors can edit the content of presentations. Video and audio clips from different servers can be combined. View and quality is controlled in the two dimensions of temporal and spatial resolution. The user can customize the appearance by adjusting the view parameters of play speed and image ....
....for the broadcast in highquality have to be slowly downloaded before they can be displayed. While looking for appropriate material, however, a lot more data needs to be viewed. To do this efficiently, the news editor requires lower quality, real time access to remote material. 1.2. 2 Sports Staehli [31] describes another area of application for advanced multimedia systems: professional sports, using basketball as an example. Sports events are often recorded with several cameras and microphones providing multiple viewpoints and sound tracks 1 . Usually, these streams cannot be played back ....
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R. Staehli. Quality of Service Specification for Resource Management in Multimedia Systems. Ph.D. thesis, Oregon Graduate Institute of Science & Technology, January 1996.
....had preferred spatial resolution over frame rate (for example, when video is used to display slides at a conference) the application could lower the frame rate rather than increase the amount of lossy compression. Our approach to providing a presentation QoS specification is fully described in [20]. 2.2 Scalable Content While users might understand frame rate and spatial resolution, the typical user might not understand how to scale a particular media type. Applications are best equipped to intelligently choose the scaling algorithms best suited to their media type. For example, for ....
Staehli, R. Quality of Service Specification for Resource Management in Multimedia Systems. PhD thesis, Oregon Graduate Institute of Science and Technology, January 1996.
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Richard A. Staehli "Quality of Service Specification for Resource Management in Multimedia Systems", Ph.D. Dissertation, Oregon Graduate Institute of Science and Technology, January 1996. 159
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R. Staehli, "Quality of Service Specification for Resource Management in Multimedia Systems", Ph.D. thesis, Oregon Graduate Institute, January 1996.
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