Media synchronization control considering features of MPEG video

Kazuhiro Tsuyuguchi; Ryohei Okada; Akira Kinno; Naohisa Komatsu

doi:10.1117/12.371226

22 November 1999 Media synchronization control considering features of MPEG video

Kazuhiro Tsuyuguchi, Ryohei Okada, Akira Kinno, Naohisa Komatsu

Author Affiliations +

Proceedings Volume 3845, Multimedia Systems and Applications II; (1999) https://doi.org/10.1117/12.371226
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

The intra-media synchronization control scheme for MPEG video over Internet, where communication quality is not always guaranteed, are proposed in this paper. In order to obtain expected quality of MPEG video, four basic control functions and one subfunction for a minimum size of controlled image (hereinafter referred to as MU: Media Unit) are introduced. The proposed basic control functions are classified into two types. One type lays emphasis on realizing real-time display. Another type lays emphasis on keeping quality of images. The former type includes short (to reduce periods to display MUs), change (to realize more moderate control than short function) and skip (to abandon a received MU) functions. The latter type includes smooth (to make the variations of periods to display MUs small by postponing a display time) function. And a sort function, which is to display MUs in regular order, is also prepared in the proposed control scheme. Combinations of these control functions are pursued at a client side alone. Characteristics of proposed control functions are described with simulation results. Especially, in order to execute the subjective assessment only depending on psychological assessment factors, a SD (Semantic Differential) method, which is a kind of psychological factor analysis, is introduced. As the result, it is confirmed that a smooth function is the most effective to keep quality of images, and in order to realize realtime display, the short, change or skip function should be combined.

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Kazuhiro Tsuyuguchi, Ryohei Okada, Akira Kinno, and Naohisa Komatsu "Media synchronization control considering features of MPEG video", Proc. SPIE 3845, Multimedia Systems and Applications II, (22 November 1999); https://doi.org/10.1117/12.371226

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KEYWORDS

Image quality

Tantalum

Video

Calcium

Factor analysis

Internet

Image analysis

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