Patent ID: 11914692
Assignee: SONY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  A | IPC G

Claim 14:
15. A non-transitory computer-readable medium having stored thereon computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:
acquiring a multi-spectral image consistent with an imaging result of a subject by using light divided into a plurality of wavelength bands; and
extracting a feature value by carrying out a computational process on the multi-spectral image based on coefficients appropriate to absorption spectral properties of a plurality of pigments, wherein
the plurality of pigments includes at least partially one or more skin pigments,
the feature value is extracted by a first weighting process and a second weighting process on the multi-spectral image as the computational process,
the first weighting process is performed based on a weighting coefficient determined from, of absorption spectra of the plurality of pigments, a ratio between a first absorption coefficient of hemoglobin at a first wavelength and a second absorption coefficient of hemoglobin at a second wavelength, and
the second weighting process is based on the coefficients appropriate to a variation of absorbance in a time direction appropriate to absorption spectral properties of some of the plurality of pigments for the multi-spectral image.