Image pickup device and noise reduction method thereof

Details Image pickup device and noise reduction method thereof Image pickup device and noise reduction method thereof

2011-08-02

2011-08-02

Ometz, David L (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S241000, C348S248000, C348S250000

Reexamination Certificate

active

07990442

ABSTRACT:
An image pickup device having an electron multiplying-charge coupled device includes a control unit for controlling an electron multiplication factor of the electron multiplying-charge coupled device; an obtaining unit for obtaining signals output from predetermined pixels of the electron multiplying-charge coupled device; and an averaging unit for performing an inter-line averaging process of the signals obtained by the obtaining unit. The device further includes a suppression unit for performing low-level and high-level suppressions on the signal averaged by the averaging unit based on the electron multiplication factor of the electron multiplication factor control unit; an acquisition unit for acquiring image signals output from the pixels other than the predetermined pixels of the electron multiplying-charge coupled device; and a subtractor for subtracting the signal suppressed by the suppression unit from the image signals acquired by the acquisition unit.

REFERENCES:
patent: 4608608 (1986-08-01), Nishizawa et al.
patent: 2005/0073597 (2005-04-01), Rengakuji et al.
patent: 2007/0242145 (2007-10-01), Hazelwood et al.

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