Abstract: A behavior history data acquisition unit 304 acquires behavior history data on a plurality of users wearing head mounted displays on heads thereof and experiencing a same three-dimensional content space. A line-of-sight direction acquisition unit 312 acquires line-of-sight directions of the plurality of users in the three-dimensional content space, from the behavior history data on the plurality of users. A screen generation unit 316 generates, on a basis of the acquired line-of-sight directions of the plurality of users, an image concerning line of sights of the plurality of users in a three-dimensional virtual space.

Abstract: A behavior history data acquisition unit 304 acquires behavior history data on a plurality of users wearing head mounted displays on heads thereof and experiencing a same three-dimensional content space. A line-of-sight direction acquisition unit 312 acquires line-of-sight directions of the plurality of users in the three-dimensional content space, from the behavior history data on the plurality of users. A screen generation unit 316 generates, on a basis of the acquired line-of-sight directions of the plurality of users, an image concerning line of sights of the plurality of users in a three-dimensional virtual space.