Patent ID: 9417712
Filing Date: 2016-08-16
CPC Classification: G06F,H04N

Claim Text:
1. An image processing apparatus comprising: circuitry configured to: acquire a captured image, obtained by imaging at least one of a projection surface onto which an image is projected so that an optical axis of projected light projected from a projection device and the projection surface form an acute angle, and a perimeter of the projection surface; detect, based on the captured image, a shadow produced by an object entering an optical path of the projected light on at least one of the projection surface and the perimeter of the projection surface; calculate a linear regression line that indicates an entering direction of the object based on the detected shadow, the linear regression line extending beyond the detected shadow of the object in the entering direction of the object; determine, based on information of whether or not a button exists in the image on the calculated linear regression line, whether or not the button is to be pressed; and output, when it is determined that the button is to be pressed, information corresponding to pressing of the button, wherein a plurality of buttons arranged in positions different from each other are displayed in the image, and the circuitry is configured to determine, when having determined that two or more of the plurality of buttons exist on the linear regression line, which one of the two or more of the plurality of buttons is to be pressed based on a stretching speed of the shadow.