Patent ID: 11870969
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An imaging apparatus comprising:
a first camera which includes a color filter portion including a red color filter that transmits light in a red wavelength region, a green color filter that transmits light in a green wavelength region, and a blue color filter that transmits light in a blue wavelength region, and a first light receiving portion receiving light transmitted through the color filter portion, and which captures a color image based on a gradation value of red light transmitted through the red color filter, a gradation value of green light transmitted through the green color filter, and a gradation value of blue light transmitted through the blue color filter;
a second camera which includes a spectroscopic element configured to disperse light having a predetermined spectral wavelength from incident light and to change the predetermined spectral wavelength to four or more spectral wavelengths, and a second light receiving portion receiving the light dispersed by the spectroscopic element, and which captures a spectroscopic image of each wavelength dispersed by the spectroscopic element; and
one or more processors configured to:
store a predetermined correction coefficient in a memory;
set a first imaging condition which is an imaging condition of the first camera, wherein the first imaging condition includes at least a first exposure time;
set a second imaging condition, which is an imaging condition of the second camera, based on the first imaging condition, wherein
the second imaging condition includes at least a second exposure time,
the second exposure time is different from the first exposure time,
the second exposure time associated with the second camera is based on the first exposure time associated with the first camera, and
the second exposure time is set by multiplication of the first exposure time with a predetermined correction coefficient;

evaluate the spectroscopic image that is obtained by imaging a target object with the second camera based on the second imaging condition;
calculate, based on the evaluation that the spectroscopic image is an inappropriate image, a new correction coefficient from the stored predetermined correction coefficient; and
update the second imaging condition based on the new correction coefficient, wherein the target object is reimaged with the second camera based on the updated second imaging condition.