Method and apparatus for coding digital video signal based...

Details Method and apparatus for coding digital video signal based... Method and apparatus for coding digital video signal based...

2007-06-26

2007-06-26

Tran, Phuoc (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S248000

Reexamination Certificate

active

10353895

ABSTRACT:
Provided are a method of and an system for coding a grouped zerotree wavelet image having high coding efficiency regardless of the scale of a wavelet transform. According to an embodiment of the present invention, a method of coding an input image to a bitstream by using a zerotree wavelet transform, the method comprises merging a plurality of adjacent zerotrees, and coding the merged zerotrees to one symbol and outputting the symbol. The method further comprises transforming the input image to a wavelet domain having a plurality of wavelet coefficients via the zerotree wavelet transform, and generating the plurality of adjacent zerotrees each having the plurality of wavelet coefficients.

REFERENCES:
patent: 6157746 (2000-12-01), Sodagar et al.
patent: 6445823 (2002-09-01), Liang

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