Video streaming with SP and SI frames Chuan-Yu Cho In proceeding of VCIP 2005 Eric Setton and Bernd...
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![Page 1: Video streaming with SP and SI frames Chuan-Yu Cho In proceeding of VCIP 2005 Eric Setton and Bernd Girod, Information Systems Laboratory, Stanford University,](https://reader030.fdocuments.net/reader030/viewer/2022032704/56649d435503460f94a1f18c/html5/thumbnails/1.jpg)
Video streaming with SP and SI frames
Chuan-Yu Cho
In proceeding of VCIP 2005Eric Setton and Bernd Girod, Information Systems Laboratory,Stanford University, Stanford, CA
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Outline
Introduction to SP/SI Frames SP and SI Frames Encoding Generating SP and SI Frames for Streaming Performance Analysis
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Introduction to SP/SI Frames
P P P SP1 P P Quality 1
SP12 (Stored bitstream)
P P P SP2 P P Quality 2
P P P SP12 P P (Transmitted bitstream)
SI
(Stored bitstream)P P P SP P P
P P P SI P P (Transmitted bitstream)
Lost frame
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SP and SI Frames Encoding
SP frame encoder SI and switching SP frame encoder
M. Karczewicz and R. Kurceren, “The SP- and SI-frames design for H.264/AVC,” IEEE Trans. on Circuitsand Systems for Video Technology, pp. 637–644, July 2003.
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Generating SP and SI Frames for Streaming
GOP structures used for streaming with SP and SI frames and for periodic I frame insertion.
Optimal settings for QPSP and QPSP2, for different probabilities of transmitting an SI frame.
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Rate-distortion performance for different frame types
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Rate-distortion performance with periodic I frame, SP frame or SI frame insertion
Mother & Daughter
Foreman
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Congestion-Rate-Distortion Performancefor Varying Loss Rates - Mother & Daughter
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Congestion-Rate-Distortion Performancefor Varying Loss Rates - Foreman
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Congestion-Rate-Distortion Performancefor Varying Propagation Delays - Mother & Daughter
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Congestion-Rate-Distortion Performancefor Varying Propagation Delays - Foreman
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Conclusions
The use of SP and SI frames is beneficial for scenarios where feedback is available from the receiver and the propagation delay is low enough to allow for ACK-based retransmissions.