FIELD: telecommunications.
SUBSTANCE: stereoscopic video observation device comprises an optically transmissive head-mounted display configured to present video observed when a three-dimensional image in a virtual three-dimensional space is projected into a real space. Transmittance changing section is configured to change transmittance of light passing through optically transmissive head-mounted display. Shutter control section sets a lower limit value of light transmittance that can be changed by transmittance changing section depending on location and speed.
EFFECT: technical result consists in possibility of monitoring external environment through head-mounted display depending on change of position and speed of movement.
8 cl, 9 dwg
