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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 15, NO. 10, OCTOBER 2005 1257 Rate-Distortion Hint Tracks for
 

Summary: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 15, NO. 10, OCTOBER 2005 1257
Rate-Distortion Hint Tracks for
Adaptive Video Streaming
Jacob Chakareski, John G. Apostolopoulos, Member, IEEE, Susie Wee, Member, IEEE, Wai-tian Tan, Member, IEEE,
and Bernd Girod, Fellow
Abstract--We present a technique for low-complexity rate-
distortion (R-D) optimized adaptive video streaming based on the
concept of rate-distortion hint track (RDHT). RDHTs store the
precomputed characteristics of a compressed media source that
are crucial for high performance online streaming but difficult
to compute in real time. This enables low-complexity adaptation
to variations in transport conditions such as available data rate
or packet loss. An RDHT-based streaming system has three
components: 1) information that summarizes the R-D attributes
of the media; 2) an algorithm for using the RDHT to predict the
distortion for a feasible packet schedule; and 3) a method for
determining the best packet schedule to adapt the streaming to the
communication channel. A family of distortion models, denoted
distortion chains, are presented which accurately predict the
distortion produced by arbitrary packet loss patterns. Two distor-

  

Source: Apostolopoulos, John - Hewlett Packard Research Labs
Girod, Bernd - Department of Electrical Engineering, Stanford University

 

Collections: Computer Technologies and Information Sciences; Engineering