Fast lifting lossless wavelet transform

Details Fast lifting lossless wavelet transform Fast lifting lossless wavelet transform

2005-04-12

2009-08-11

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S232000, C382S239000, C708S400000

Reexamination Certificate

active

07574064

ABSTRACT:
The lifting transform reduces the number of lifting steps in lossless data compression while improving the overall rounding errors incurred in the real-to-integer conversion process at each of the lifting steps. The compression ratio increases when used for lossless image data compression. The lifting transform further saves memory space and decreases signal delay.

REFERENCES:
patent: 2003/0198394 (2003-10-01), Fukuhara et al.
patent: 2005/0249425 (2005-11-01), Paniconi et al.
patent: 2006/0083309 (2006-04-01), Schwarz et al.
patent: 2007/0276893 (2007-11-01), Huang et al.
patent: 2008/0030385 (2008-02-01), Huang et al.
patent: WO 2005031595 (2005-04-01), None

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