Patent ID: 6795041
Filing Date: 2004-09-21
Classification: G02B

Abstract:
A mixed reality realizing system, comprising identification signal transmitters located around a target object to transmit identification signals of the target object, a plurality of position indicators for indicating a position of the target object, and a portable type terminal device comprising a head mount display, a controller and a computer,the head mount display of said portable type terminal device comprising: a video screen; an identification signal receiver for receiving the identification signals of the target object transmitted from the identification signal transmitters; and a camera for shooting the plurality of position indicators, the computer comprising: a storage for storing, in advance, data including coordinate positions of the plurality of position indicators on an image shot by the camera from a reference position previously determined based on the target object and contents relating to the target object; a control operation unit for receiving the signals from the identification signal receiver and retrieving the contents relating to the target object from the storage; a coordinate position recognizing unit for recognizing, in real time, coordinate positions of the plurality of position indicators on the image shot by the camera; a position-information operation unit for calculating a visible position and a real position of the target object based upon the plurality of coordinate positions obtained from the position indicators; and a content superimposing unit for superimposing the contents relating to the target object on the target object on the video display of the head mount display based on the information on the plurality of positions obtained from the position-information operation unit, the contents having been registered in advance in the storage, wherein the position-information operation unit calculates a difference between each coordinate position of the position indicator on the image registered in advance in the storage of the computer, and a coordinate position recognized in real time by the coordinate position recognizing unit, thereby to superimpose in real time the contents relating to the target object on the target object based on the calculation result.