Head-mounted display system, a head-mounted display, a head mount display control program, an image display method and image display device

HMD system according to the present technology includes a coordinate system setting section, and the segment selector, and an image generating unit. Coordinate system setting section, in the real space, setting the cylindrical coordinate system that is partitioned into a plurality of segments. Segment selection unit, in the cylindrical coordinate system, and select standby state one of the plurality of segments based on the direction of the display. Image generation unit, a selection of segments with selected standby state is established, generates a display image displayed on the display in accordance with the determined segment.