Patent ID: 11909941
Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  A | IPC A  H

Claim 16:
17. A non-transitory computer readable storage device having computer readable instructions that when executed by circuitry cause the circuitry to:
generate first component information about colors corresponding to spectral characteristics of a plurality of filter groups, respectively, that includes plural pieces of first component information, in an image obtained by illuminating an observed object with exciting light using an image sensor, the image including fluorescent light output from the observed object illuminated by the exciting light and exciting light reflected by the observed object illuminated by the exciting light, the plurality of filter groups having spectral characteristics different from each other are arranged in a specific format on a light receiving surface of the image sensor, wherein the plurality of filter groups together transmit white light and each filter group of the plurality of filter groups transmits the exciting light and the fluorescent light;
generate second component information by using at least one combination of two different pieces of first component information out of the plural pieces of first component information about the colors obtained by multiplication of the two different pieces of first component information, and
perform color correction processing that corrects the plural pieces of first component information about the colors by multiplying an input matrix containing each of the plural pieces of first component information and the second component information as matrix elements by a color correction matrix so that a brightness of an exciting light component of the image and a brightness of a fluorescent light component of the image equals a predetermined balance.