Method for converting data from pixel format to bitplane format

Details Method for converting data from pixel format to bitplane format Method for converting data from pixel format to bitplane format

2008-01-01

2008-01-01

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

C712S300000

Reexamination Certificate

active

07315261

ABSTRACT:
This invention efficiently converts normal pixel data into bit plane data. A sequence of pack, bitwise shuffle, masking, rotate and merging operations transform tile from pixel form to bit plane form. This enables downstream algorithms to read only the data for the bit plane of interest. This greatly reduces the memory bandwidth bottleneck and opens many new optimization pathways.

REFERENCES:
patent: 5966138 (1999-10-01), Tanaka
patent: 6067613 (2000-05-01), Balmer
patent: 6437712 (2002-08-01), Aoki
patent: 6444483 (2002-09-01), Minemura et al.
patent: 6728741 (2004-04-01), Keay
patent: 6745319 (2004-06-01), Balmer et al.
patent: 6816961 (2004-11-01), Rice et al.
Henry S. Warren, Jr., Hacker's Delight,Transposing a Bit Matrix, ISBN 0-201-91465-4, 2003, pp. 108-117.

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