Main beam direction determining apparatus, main beam direction determining method and program

摘要

Provided are a main beam direction determination device, a main beam direction determination method, and a program that are capable of performing narrowing down of candidates of main beam directions in view of the fact that there is a bias in directions in which a head of a user moves in a situation in which the user plays a game. According to the present invention, an image acquisition unit (72) acquires an image that includes a figure of the user wearing a head-mounted display. A narrowed-down region specification unit (76) specifies, within the image, a region that includes a figure of the head of the user when a posture of the user stretches in a vertical direction. A secondary candidate sector selection unit (78) selects, from among primary candidates of a plurality of the main beam directions, secondary candidates that are directions made to be correspondent to positions within the region. A sector-level sweep processing execution unit (80) determines, from among the secondary candidates, a main beam direction for communication with the head-mounted display. The region has a projection part.