Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2006-08-15
2006-08-15
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462250, C235S472010
Reexamination Certificate
active
07090133
ABSTRACT:
A method of and system for producing a digital image of an object with reduced speckle-pattern noise power. The method comprises moving a hand-supportable PLIIM-based imager relative to an object so as to consecutively capture, over a series of consecutively different photo-integration time periods, a series of digital images of an object with speckle-pattern noise. This series of digital images are buffered over the series of consecutively different photo-integration time periods. Corresponding pixel data subsets defined over a small window in the set of captured digital images are processed so as to produce spatially corresponding pixels data subsets in a reconstructed digital image of the object, containing speckle-pattern noise having a substantially reduced level of RMS power. The method and system may also be used using both linear and area type PLIIM-based imagers. By virtue of the present invention, it is possible to now use laser illumination and electronic image detection arrays to produce digital images of objects with substantially reduced speckle-noise power levels.
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Le Thien M.
Metrologic Instruments Inc.
Perkowski Esq. P.C. Thomas J.
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