Patent ID: 11954888
Assignee: NIKON CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  C | IPC G

Claim 5:
6. A cell state evaluation device comprising:
a processor;
a memory encoded with instructions executed by the processor, the instructions causing the processor to perform operations comprising:
calculating color information of at least one or a combination of hue, saturation, or lightness in the color space of an image of one captured cell or a plurality of captured cells in a captured image;
determining the cultured state of the cell or cells on the basis of the color information and color reference information;
storing a positive region set on the basis of the color information of the image of one sample cell or a plurality of sample cells in the color space as the color reference information which is the determination standard; and
obtaining a center of gravity of the color information or a statistic of the color information on the basis of the color information of the plurality of captured cells,
wherein the determining includes determining the cultured state of the one captured cell or a plurality of captured cells by determining whether or not the trajectory of the center of gravity or the statistic of the color information is on the same trajectory of the center of gravity or the statistic of the color information of the one sample cell or a plurality of sample cells in the color space on the basis of the color reference information representing the positive region.