Wave image compression

Details Wave image compression Wave image compression

2005-08-23

2005-08-23

Mehta, Bhavesh M. (Department: 2625)

Image analysis

Image compression or coding

Quantization

C382S264000, C348S014130, C358S426140

Reexamination Certificate

active

06934420

ABSTRACT:
A method of image compression comprises the steps of recursively transforming a image using a Discrete Wavelet Transform. This creates a plurality of levels including at least a first level, multiple intermediate levels, and a low-low pass subband of the last level. The transformed image at each level is quantized, and datapacking the quantized image is performed. The step of datapacking further includes, encoding of the first level using adaptive run length of zero cofficients; encoding of the intermediate levels using run-length coding of zero coefficients and a predetermined two-knob huffman table for non-zero coefficients and encoding of the low-low pass subband using a low frequency packing algorithm.

REFERENCES:
patent: 5315670 (1994-05-01), Shapiro
patent: 5734755 (1998-03-01), Ramchandran et al.
patent: 5802481 (1998-09-01), Prieto
patent: 5819215 (1998-10-01), Dobson et al.
patent: 5825935 (1998-10-01), Murakoshi
patent: 5835034 (1998-11-01), Seroussi et al.
patent: 5867602 (1999-02-01), Zandi et al.
patent: 6018596 (2000-01-01), Wilkinson
patent: 6141446 (2000-10-01), Boliek et al.
patent: 6353685 (2002-03-01), Wu et al.
patent: 6546143 (2003-04-01), Taubman et al.
patent: 6594394 (2003-07-01), Stromberg et al.
patent: 6618507 (2003-09-01), Divakaran et al.

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