Patent ID: 9253480
Filing Date: 2016-02-02
CPC Classification: G02B,H04N

Claim Text:
1. An image display device comprising: a viewpoint detector operating to: (1) detect a user viewing a stereoscopic image, including a parallax image for the left eye and a parallax image for the right eye of a subject as viewed from a predetermined position defined as a reference view position, which is a fixed viewpoint at which no motion parallax is present, (2) acquire a position and size of a face of the user, (3) track eyes of the user, (4) determine a viewpoint of the user using the acquired position and size of the face of the user, and the tracking of the eyes of the user, and (5) track the viewpoint of the user; and a motion parallax calculator operating to determine an amount of motion parallax correction to apply to the parallax image for the left eye and for the parallax image for the right eye, respectively, as a function of an amount of movement of the viewpoint determined by tracking the viewpoint of the user, wherein the amount of motion parallax correction is computed for the parallax image for the left eye and the parallax image for the right eye when the speed of movement of the viewpoint of the user is equal to or higher than a predetermined level, wherein the amount of motion parallax correction for the parallax image for the left eye and the parallax image for the right eye is determined to be a reference amount, in accordance with the reference view position at which no motion parallax is present, when the speed of movement of the viewpoint of the user remains below the predetermined level for a sufficient period of time, wherein the amount of motion parallax correction computed for the parallax image for the left eye and the parallax image for the right eye is gradually reduced to the reference amount during a period of time when the speed of movement of the viewpoint of the user falls below the predetermined level but has not reached the sufficient time period, a display operating to display the stereoscopic image corrected for motion parallax by the amount of motion parallax correction computed as a function of the speed of movement of the viewpoint of the user and applied to the parallax image for the left eye and the parallax image for the right eye.