Image analysis – Image compression or coding – Quantization
Reexamination Certificate
2007-09-14
2011-12-27
Do, Anh Hong (Department: 2624)
Image analysis
Image compression or coding
Quantization
C382S232000
Reexamination Certificate
active
08086057
ABSTRACT:
A method and system are introduced that provide dynamic quantizer structures which are configurable during run time. A quantizer configuration and data are stored in a binary format. The dynamic quantizer data is represented as a bitstream, and the bitstream in turn is used as additional input during initialization (or re-initialization/re-configuration) of a speech coder. A configuration header fully specifies the structure and configuration of the dynamic quantizer for each quantized parameter, and the dynamic quantizer data and configurations are fully and dynamically allocated into the speech coder memory. This enables easy re-configuration of a codec associated with the quantizer structures for different scenarios. The use of dynamic quantizer structures in turn enhances compression efficiency of an input signal. The dynamic quantizer structures can also be applied to other compression applications that allow lossy compression.
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Himanen Sakari
Nurminen Jani
AlbertDhand LLP
Do Anh Hong
Nokia Corporation
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