Patent ID: 8860634
Filing Date: 2014-10-14
Classification: G02B,G09G

Abstract:
1. A head-mountable display comprising: a frame which is configured to be mounted on a user's head, a camera mounted on the frame for capturing a view of the user's eyes, a motion detector for detecting motion of the head mountable display and for generating a motion signal representing a movement of the head mountable display with respect to time, and a controller configured to estimate a relative distance between the user's eyes with respect to the frame by capturing a relative separation of the user's eyes from an image of the user's eyes captured by the camera at a start position, to process a motion period of the motion signal corresponding to a process in which the user moves the head mountable display from the start position to dispose the head mountable display on the user's head at an end position, and to estimate the relative distance between the user's eyes with respect to the frame by determining a distance from the start position of the head mountable display at which the image of the user's eyes was captured to the end position in which the head mountable display is disposed on the user's head in combination with the relative separation of the user's eyes in the image of the user's eyes captured by the camera at the start position.