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Title:
撮像装置
Document Type and Number:
Japanese Patent JP5784669
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent video abnormality such as a vertical smear or transfer path oversaturation from standing out, in an imaging device using a CCD imaging element.SOLUTION: In an imaging device using a CCD imaging element, a vertical-line video signal, having a vertical smear which does not reach a V-OB or varies, is replaced with a weighted average of right and left pixels by maximum value detection of the vertical-line video signal obtained by superposing a vertical line marker on video or subjecting the video to white extension, or a main line video signal is corrected. Alternatively, difference between a video signal of a screen having a smear and a video signal of a screen without the smear is calculated and the main line video signal is corrected. The minimum value of a vertical-line signal of the V-OB is detected and considered as a vertical smear component, and, when the vertical smear component or the maximum value of the vertical-line video signal is set above a predetermined value, a lens iris is restricted, AGC or CMG voltage is raised, and sensitivity is kept constant.

Inventors:
Yutaka Muto
Kazuhiko Nakamura
Application Number:
JP2013104002A
Publication Date:
September 24, 2015
Filing Date:
May 16, 2013
Export Citation:
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Assignee:
Hitachi Kokusai Electric Co., Ltd.
International Classes:
H04N5/238; G03B7/08; H04N5/357; H04N5/372
Domestic Patent References:
JP2008109639A
JP2006295763A
JP2003143486A
Attorney, Agent or Firm:
Polaire Patent Business Corporation



 
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