Lossy data compression

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United States of America Patent

PATENT NO 11531479
APP PUB NO 20200272333A1
SERIAL NO

16872527

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Abstract

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A lossy method of compressing data, such as image data, which uses wrap-around wavelet compression is described. Each data value is divided into two parts and the first parts, which comprise the most significant bits from the data values, are compressed using wrap-around wavelet compression. Depending upon the target compression ratio and the compression ratio achieved by compressing just the first parts, none, one or more bits from the second parts, or from a data value derived from the second parts, may be appended to the compressed first parts. The method described may be lossy or may be lossless. A corresponding decompression method is also described.

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Patent Owner(s)

  • IMAGINATION TECHNOLOGIES LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fenney, Simon Kings Langley, GB 178 663
Zhang, Linling Kings Langley, GB 15 46

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