Digital image coding device and method for noise removal...

Details Digital image coding device and method for noise removal... Digital image coding device and method for noise removal...

2003-07-02

2009-06-23

Strege, John B (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S252000, C382S247000, C382S232000

Reexamination Certificate

active

07551788

ABSTRACT:
A digital image coding device based on wavelet transform technology includes a lower-bitplane replacement section which is provided after a coefficient modeling section and before an arithmetic coding section. The coefficient modeling section converts wavelet coefficients into binary data composed of a plurality of bitplanes for each code-block. The lower-bitplane replacement section replaces a designated number of lower-order bitplanes of the plurality of bitplanes with zero to produce modified binary data. The designated number of low-order bitplanes is designated depending on a noise characteristic of the image capturing device. The arithmetic coding section codes bitplanes of the modified binary data.

REFERENCES:
patent: 6512853 (2003-01-01), Kennedy et al.
patent: 6985632 (2006-01-01), Sato et al.
patent: 2002/0003905 (2002-01-01), Sato et al.
patent: 61-260769 (1986-11-01), None
patent: 05-083129 (1993-04-01), None

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