Patent ID: 9342189
Filing Date: 2016-05-17
CPC Classification: G06F

Claim Text:
1. An information processing apparatus for recognizing a touch operation on a target surface by an operation object being irradiated with light from a light source, comprising: a non-transitory memory device; a processor; a position specification unit configured to specify a designation position designated by the operation object based on a captured image that is captured by a capturing unit and reflects distance information between the capturing unit and the operation object; a direction specification unit configured to specify, based on the captured image, a direction of the operation object with respect to the capturing unit or the light source; and a determination unit configured to (i) correct, based on the specified direction of the operation object and a correction parameter which is used for converting to a reference intensity value of the operation object having a reference direction and which has been obtained in advance based on past captured images of the operation object which have been captured for different directions of the operation object, an intensity value of a portion corresponding to the designation position out of the captured image so as to be the reference intensity value, wherein the intensity value depends on the specified direction of the operation object with respect to the capturing unit or the light source, and (ii) determine, based on the corrected intensity value, that a distance between the operation object and the target surface is smaller than a threshold, wherein the position specification unit, the direction specification unit, and the determination unit are implemented at least in part by the processor executing at least one program recorded on the non-transitory memory device.