Calibration pattern unit photographed by an imaging system...

Details Calibration pattern unit photographed by an imaging system... Calibration pattern unit photographed by an imaging system...

2006-11-21

2006-11-21

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C702S155000, C248S163100, C382S154000

Reexamination Certificate

active

07138645

ABSTRACT:
A calibration pattern unit which obtains correction information of an imaging system by imaging at the imaging system is formed by combining a plurality of three-dimensionally arranged planes. The calibration pattern unit comprises supporting members each of which has a predetermined surface corresponding to one of the planes, and a calibration pattern in which a predetermined pattern is formed on the predetermined surface of the supporting member. The supporting member can selectively set the calibration pattern unit to a first form for photographing when the correction information is obtained, and a second form for other purposes.

REFERENCES:
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patent: 5214872 (1993-06-01), Buyalos, Jr.
patent: 5768443 (1998-06-01), Michael et al.
patent: 5923727 (1999-07-01), Navab
patent: 11-166818 (1999-06-01), None
patent: 2001-82941 (2001-03-01), None
patent: 2001082941 (2001-03-01), None

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