GENERALIZED LOSSLESS DATA HIDING USING MULTIPLE PREDICTORS

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United States of America Patent

APP PUB NO 20080285790A1
SERIAL NO

11750591

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Abstract

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A system and methodology for encoding or decoding hidden data, such as a digital watermark, in visual raster media is provided. The lossless data hiding methodology uses multiple predictors to choose an embedding location to be either a low variance region or a high variance region. Bijective mirror mapping is used to encode hidden data at an embedding location and bijective pixel value shifting is performed to ensure reversibility back to the original image without additional information. The system and methodology can be used either in the spatial domain or the wavelet domain. The Peak Signal to Noise Ratio and the payload capacity are relatively high with the methodology.

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Patent Owner(s)

Patent OwnerAddress
WONG TECHNOLOGIES L L C2711 CENTERVILLE ROAD SUITE 400 WILMINGTON DE 19808

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Au, Oscar Chi Lim Kowloon, HK 56 981
Yip, Shu Kei Kowloon, HK 4 38

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