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International Workshop on Very Low Bitrate Video Coding (VLBV'99), Kyoto, Japan, October 1999. ERROR-RESILIENT VIDEO COMPRESSION
 

Summary: International Workshop on Very Low Bitrate Video Coding (VLBV'99), Kyoto, Japan, October 1999.
ERROR-RESILIENT VIDEO COMPRESSION
VIA MULTIPLE STATE STREAMS
John G. Apostolopoulos
Hewlett-Packard Laboratories
Palo Alto, CA, USA
japos@hpl.hp.com
ABSTRACT
Video compression enables a number of applications by reducing
the required bit rate needed to represent a video sequence, however
the compressed video is much more susceptible to errors, e.g. bit
errors or packet loss. Conventional video compression standards
employ an architecture which we refer to as single-state systems
since they have a prediction loop with a single state (e.g. the pre-
vious decoded frame) which if lost or corrupted can lead to the
loss or severe degradation of all subsequent frames until the state
is reinitialized (the prediction is refreshed). We propose to com-
bat this problem of incorrect state and error propagation at the de-
coder by coding the video into multiple independently decodable
streams, each with its own prediction process and state, such that

  

Source: Apostolopoulos, John - Hewlett Packard Research Labs

 

Collections: Computer Technologies and Information Sciences