Adaptive variable length decoding method based on text
Title:
Adaptive variable length decoding method based on text
Application Number:
200610041780
Application Date:
2006/02/13
Announcement Date:
2006/08/30
Pub. Date:
Publication Number:
1825963
Announcement Number:
Grant Date:
Granted Pub. Date:
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
H04N 7/30, H04N 7/26
Applicant(s):
Tsinghua Univ.
Inventor(s):
He Yun, Qu Yanmei
Key Words:
Adaptive, variable length decoding, text
Abstract:
This invention discloses a method for an adaptive variable-length decoding based on the context controlled by a controller including decoding five grammar elements: beginning from coeff token, numbers of total coeff of non-zero factors and trailing ones of trailing one, decoding trailing one sign, the symbol of trailing one, level, the amplitude of the left non-zero coefficient, decoding of total zeros, the number of zero before the last non-zero coefficient, run before decoding number of zero from the last non-zero coefficient to the front non-zero coefficient, in which, coeff token decoding applies a multi-ID number distribution method based on the packet rule or a storage conversion method and decoding of total zeros applies the multi-ID number distribution method based on the packet rule or a code word merging method based on the relation of the code words after packet.
Claim:
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PCT:
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