Coded data generation or conversion – Digital code to digital code converters – To or from code based on probability
Reexamination Certificate
2007-01-19
2008-08-05
Nguyen, Khai M (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from code based on probability
C341S051000, C382S239000, C382S247000
Reexamination Certificate
active
07408487
ABSTRACT:
A method and an apparatus are provided for context-based adaptive binary arithmetic coding (CABAC) based encoding or decoding using improved selection of a context model for a high compression ratio. The method of CABAC-based encoding includes selecting a first context model based on statistics of previously input symbols and a second context model having a value of a most probable symbol (MPS) different from that of the first context model, encoding a current input symbol using the first context model if the current input symbol has a same value as that of the most probable symbol of the first context model or if the second context model cannot be selected, and encoding the current input symbol using the second context model if the current input symbol has a value different from the most probable symbol of the first context model and if the second context model can be selected.
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Nguyen Khai M
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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