Image reading apparatus and computer readable storage medium

Details Image reading apparatus and computer readable storage medium Image reading apparatus and computer readable storage medium

2007-03-27

2007-03-27

Garber, Wendy R. (Department: 2612)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S241000, C348S243000

Reexamination Certificate

active

09309872

ABSTRACT:
In an X-ray film image reading apparatus, dark output distribution data of a CCD line sensor is corrected by using correction data. In order to suppress the influence of random noises on the correction data, a dark distribution correction data calculation circuit10calculates an average value or mode value of dark distribution outputs of all or some pixels of a CCD line sensor or a dark distribution output of the CCD line sensor subjected to a spatial low-pass filtering process, and stores it in a dark distribution memory as correction data. Next, a light source is turned on, and a subtractor subtracts the stored correction data from an output of the line sensor read from an X-ray film while the light source is turned on.

REFERENCES:
patent: 5181118 (1993-01-01), Kimura
patent: 5355164 (1994-10-01), Shimoyama et al.
patent: 5376966 (1994-12-01), Takase
patent: 5604781 (1997-02-01), Suzuki et al.
patent: 5608455 (1997-03-01), Oda
patent: 5751451 (1998-05-01), Ogoshi et al.
patent: 5778044 (1998-07-01), Bruijns
patent: 5940125 (1999-08-01), Suganuma
patent: 6219405 (2001-04-01), Inoue
patent: 6449390 (2002-09-01), Inoue
patent: 195 16 832 (1996-11-01), None
patent: 0 660 596 (1994-11-01), None

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