Patent ID: 11941849
Assignee: NEC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. An information processing method comprising:
on a basis of a measurement result of unevenness of a surface of an object, generating, by a processor, an inclination distribution representing a relationship between inclination angles at a plurality of points on the surface of the object and respective frequencies of the inclination angles, and calculating two types of inclination statistic values including a first inclination statistic value and a second inclination statistic value, the first inclination statistic value being an angle that halves an area of the inclination distribution, the second inclination statistic value being an angle extracted from a right bottom portion of the inclination distribution; and
determining, by the processor, an irradiation angle range for irradiating the object, on a basis of two types of inclination statistic values that are values corresponding to inclination distribution of unevenness existing on a surface of the object;
controlling, by the processor, illumination of the object within the irradiation angle range determined; and
capturing reflected light from the object.