Context-based encoding and decoding of signals

Details Context-based encoding and decoding of signals Context-based encoding and decoding of signals

2004-07-14

2010-02-02

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from particular bit symbol

C341S051000, C341S065000, C341S067000, C341S107000, C382S232000, C382S236000, C382S240000, C382S248000

Reexamination Certificate

active

07656319

ABSTRACT:
A system for the context-based for the context-based encoding of an input signal includes a domain transform module and a context-based coding module. The domain transform module is operable to convert the input signal into a sequence of transform coefficients c[i]. The context-based coding module includes a bit-plane scanning module, and context modeling module, and a statistical encoding module. The bit-plane scanning module is operable to produce a bit-plane symbol bps [i,bp] for each transform coefficient c[i] and each bit-plane [bp]. The context modeling module is operable to assign one or more context values to each of the received bit plane symbols bps [i,bp]. The statistical coding module is operable to code each of the bit plane symbols bps [i,bp] as a function of one or more of the corresponding context values to produce a context-based encoded symbol stream.

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