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.
Patent No.:
Date of Patent:
Oct. 06, 2015
Filed:
Sep. 14, 2012
Yuichi Nonaka, Tokyo, JP;
Takeru Kisanuki, Tokyo, JP;
Yuichi Nonaka, Tokyo, JP;
Takeru Kisanuki, Tokyo, JP;
HITACHI MAXELL, LTD., Osaka, JP;
Abstract
An imaging device is provided with a lens distortion correction function that requires less circuit scale and does not degrade image resolution. The imaging device having the lens distortion correction function is provided which includes a same-color interpolation unit that generates a lens distortion-corrected interpolation signal by using a same-color pixel in an image signal from an imaging element, a luminance signal generation unit that generates a luminance signal from the image signal from the imaging element, a first luminance signal generation unit and a second luminance signal generation unit that use the luminance signal generated by the luminance signal generation unit to generate a lens distortion-corrected interpolation signal, a lens distortion characteristics table data unit that holds information of coordinates after lens distortion characteristics correction in a memory, a coordinate/interpolation coefficient setting unit that individually generates interpolation coefficients for correcting lens distortion for each of the same-color interpolation unit, the first luminance interpolation unit, and the second luminance interpolation unit on the basis of information from the lens distortion characteristics table data unit, and a correction unit that outputs a lens distortion-corrected interpolation signal by correcting the signal from the same-color interpolation unit on the basis of a ratio between the interpolation signal generated by the first luminance interpolation unit and the interpolation signal generated by the second luminance interpolation unit.