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Chai W. Wu

IBM

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Publication

Featured researches published by Chai W. Wu.

Archive | 1998

Compressed image authentication and verification

Roy L. Adler; Bruce Kitchens; Charles Tresser; Chai W. Wu

Archive | 1999

Event-recorder for transmitting and storing electronic signature data

Timothy J. Chainer; Claude Greengard; Charles Tresser; Chai W. Wu

Archive | 1999

Method and apparatus for securely determining aspects of the history of a good

Timothy J. Chainer; Claude Greengard; William R. Pulleyblank; Charles Tresser; Chai W. Wu

Archive | 2001

Method and apparatus for depositing ordinary checks from home or office

Marco Martens; Charles Tresser; Robert J. Von Gutfeld; Chai W. Wu

Archive | 2001

Adjusting subpixel intensity values based upon luminance characteristics of the subpixels in liquid crystal displays

Paul F. Greier; Kenneth C. Ho; Richard I. Kaufman; Steven Edward Millman; Gerhard Robert Thompson; Steven L. Wright; Chai W. Wu

Archive | 1999

Watermarks for customer identification

Gordon W. Braudaway; Marco Martens; Frederick Cole Mintzer; James B. Shearer; Charles Tresser; Chai W. Wu

Archive | 1999

Dither mask generation with calibration-independent number of threshold levels

Ravishankar Rao; Gerhard Robert Thompson; Charles Tresser; Chai W. Wu

Archive | 1998

Constrained digital halftoning

Roy L. Adler; Marco Martens; Joan L. Mitchell; Nenad Rijavec; Robert H. Risch; Charles Tresser; Chai W. Wu

Archive | 1999

Method and apparatus for watermarking with no perceptible trace

David H. Jameson; Charles Tresser; Chai W. Wu; Steven Abrams; Shmuel Windgrad

Archive | 1999

Masks with modulated clustering and aperiodicity and rescaling of masks

Mikel J. Stanich; Gerhard Robert Thompson; Charles Tresser; Chai W. Wu

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Collaboration

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Charles Tresser

IBM

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Gerhard Robert Thompson

IBM

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Mikel J. Stanich

IBM

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Marco Martens

IBM

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Claude Greengard

IBM

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David H. Jameson

IBM

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Joan L. Mitchell

IBM

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Larry M. Ernst

IBM

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Nenad Rijavec

IBM

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Ravishankar Rao

IBM

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