The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2016

Filed:

Dec. 17, 2013
Applicant:

Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Satoshi Sano, Tokyo, JP;

Akihito Nishizawa, Tokyo, JP;

Junji Shiokawa, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/33 (2006.01); H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
H04N 5/332 (2013.01);
Abstract

An imaging unit photographs an object, and obtains a visible light signal and an invisible light signal. A visible light luminance extraction unit extracts a visible light luminance signal. An invisible light luminance extraction unit extracts an invisible light luminance signal. A color signal extraction unit extracts color signals from the visible light signal and corrects the color signals. An image synthesis unit uses the visible light luminance signal and the invisible light luminance signal to synthesize a luminance signal and generates a color image using the synthesized luminance signal and the corrected color signals. In accordance with the value of the visible light luminance signal, the control unit controls a synthesis ratio between the visible and invisible light luminance signals, a gain for the color signals to be corrected in the color signal extraction unit, and color noise removal to be performed in the color signal extraction unit.


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