Imaging apparatus
AssigneeRicoh Company, Ltd.
InventorRyosuke Kasahara
Life of this patent
Estimating the term…
Abstract
A disclosed imaging apparatus includes a wide-angle optical system having at least chromatic aberration of magnification; an imaging device including color filters and configured to receive an optical image from the optical system via the color filters and to convert the optical image into image data; and a chromatic aberration of magnification correcting unit configured to convert coordinates of the image data and thereby correct chromatic aberration of magnification of the image data. The chromatic aberration of magnification correcting unit is configured to convert the image data into different-wavelength image data having wavelength bands different from original wavelength bands of the color filters before correcting the chromatic aberration of magnification.
Claims13
An imaging apparatus, comprising:
- a wide-angle optical system having at least chromatic aberration of magnification;
- an imaging device including color filters and configured to receive an optical image from the optical system via the color filters and to convert the optical image into image data;
- and
- a chromatic aberration of magnification correcting unit configured to convert coordinates of the image data and thereby correct chromatic aberration of magnification of the image data,
- wherein the chromatic aberration of magnification correcting unit is configured to convert the image data into different-wavelength image data having wavelength bands that are narrower than original wavelength bands of the color filters before correcting the chromatic aberration of magnification, and
- wherein the chromatic aberration of magnification correcting unit is configured to convert the different-wavelength image data into original-wavelength image data having the original wavelength bands of the color filters after correcting the chromatic aberration of magnification.
An imaging apparatus, comprising:
- a wide-angle optical system having at least chromatic aberration of magnification;
- an imaging device including color filters and configured to receive an optical image from the optical system via the color filters and to convert the optical image into image data;
- and
- a chromatic aberration of magnification correcting unit configured to convert coordinates of the image data and thereby correct chromatic aberration of magnification of the image data,
- wherein the chromatic aberration of magnification correcting unit is configured to convert the image data into different-wavelength image data having wavelength bands that are narrower than original wavelength bands of the color filters before correcting the chromatic aberration of magnification,
- wherein the chromatic aberration of magnification correcting unit is configured to convert the image data into wavelength data components before correcting the chromatic aberration of magnification, a number of the wavelength data components being greater than a number of colors of the imaging device.
An imaging apparatus, comprising:
- a wide-angle optical system having at least chromatic aberration of magnification;
- an imaging device including color filters and configured to receive an optical image from the optical system via the color filters and to convert the optical image into image data;
- and
- a chromatic aberration of magnification correcting unit configured to convert coordinates of the image data and thereby correct chromatic aberration of magnification of the image data,
- wherein the chromatic aberration of magnification correcting unit is configured to convert the image data into different-wavelength image data having wavelength bands that are narrower than original wavelength bands of the color filters before correcting the chromatic aberration of magnification,
- wherein the chromatic aberration of magnification correcting unit performs calculations according to:
- R′=e(1)*R+e(2)*G+e(3)*B;
- G′=e(4)*R+e(5)*G+e(6)*B;
- B′=e(7)*R+e(8)*G+e(9)*B;
- where,
- R is the red input image data,
- G is the green input image data,
- B is the Blue input image data,
- e(x) are coefficients to change the wavelength bands of each color,
- R′ is the red output image data,
- G′ is the green output image data, and
- B′ is the blue output image data.
Dependencies are inferred from the claim text.