Patent ID: 6388639
Filing Date: 2002-05-14
Classification: G02B,H04N

Abstract:
A stereoscopic image display apparatus comprising:display means having a display area for displaying an image; a pair of stereoscopic eyeglasses disposed at a position spaced apart from said display means and having an optical element for a left eye and an optical element for a right eye whose states of transmission and nontransmission of light can be mutually changed over on the basis of signals inputted respectively thereto; visual-point position input means for inputting positions of a pair of eyeballs located in vicinities of said stereoscopic eyeglasses; display-position input means for inputting positions on the display area of said display means; controlling means for defining a virtual stereoscopic space included between said display means and said stereoscopic eyeglasses on the basis of the inputted positions of the eyeballs and the inputted positions on the display area, for causing an image for the left eye of a virtual object and an image for the right eye of the virtual object to be alternately displayed by said display means by being mutually changed over so as to allow the virtual object to be perceived in the virtual stereoscopic space, and for outputting changeover signals to cause said optical element for the left eye and said optical element for the right eye to alternate the transmission and nontransmission of the light in synchronism with the changeover; and correcting means for determining in advance a relationship of correspondence between a perceived position in said virtual stereoscopic space and at least one of the position inputted by said visual-point position input means and the position inputted by said display-position input means, and for correcting coordinates in the virtual stereoscopic space for displaying the virtual object on the basis of the relationship of the correspondence, wherein said correcting means calculates the image for the left eye of the virtual object and the image for the right eye of the virtual object on the basis of the relationship of the correspondence, and wherein said correcting means determines the relationship of correspondence on the basis of an error between a position of the virtual object displayed in the virtual stereoscopic space and measured in advance and a measurement position used in the measurement of the perceived position of the virtual object.