Method for displaying a stereoscopic image on an autostereoscopic display device

A method for operating an autostereoscopic display device, the method comprising:

• providing three-dimensional scene data representing a three-dimensional scene;
• rendering a stereoscopic image from the three-dimensional scene data by creating a left eye image and a right eye image, the left eye image being configured to be viewed by a left eye of a viewer, the right eye image being configured to be viewed by a right eye of the viewer;
• defining a position of a left rendering spot corresponding to the left eye of the viewer relative to the autostereoscopic display device, the left rendering spot having a fixed position with respect to a head of the viewer, the left rendering spot being within 5 mm from a center of rotation of the left eye;
• defining a position of a right rendering spot corresponding to the right eye of the viewer relative to the autostereoscopic display device, the right rendering spot having a fixed position with respect to the head of the viewer, the right rendering spot being within 5 mm from a center of rotation of the right eye;
• and
• rendering the stereoscopic image as a rendered stereoscopic image, based at least in part on the position of the left rendering spot relative to the autostereoscopic display device and the position of the right rendering spot relative to the autostereoscopic display device. ;
• and

An autostereoscopic display device configured to display a stereoscopic image of a three-dimensional scene to a viewer, the autostereoscopic display device comprising:

• a tracking system configured to track a position of a left rendering spot corresponding to a left eye of the viewer relative to the autostereoscopic display device, the left rendering spot having a fixed position with respect to a head of the viewer, the left rendering spot being located within 20 mm of a center of rotation of the left eye, the tracking system being configured to track a position of a right rendering spot corresponding to a right eye of the viewer relative to the autostereoscopic display device, the right rendering spot having a fixed position with respect to the head of the viewer, the right rendering spot being located with 20 mm of a center of rotation of the right eye;
• a display portion configured to display a left eye image to the left eye of the viewer and a right eye image to the right eye of the viewer, the display portion comprising:
• an array of display pixel elements configured to produce a display output;
• and
• a lenticular device disposed over the array, the lenticular device comprising lenticular lens areas configured to direct the display output from different display pixel elements to different spatial positions within a field of view to display the stereoscopic image;
• and
• rendering circuitry configured to render the stereoscopic image from three-dimensional scene data based at least in part on the position of the left rendering spot relative to the autostereoscopic display device and the position of the right rendering spot relative to the autostereoscopic display device, the stereoscopic image representing the three-dimensional scene from a viewing position of the viewer relative to the autostereoscopic display device.