METHOD OF DISPLAYING PROJECTED PAGE IMAGE OF PHYSICAL PAGE

摘要

A method of displaying an image of a physical page relative to which a handheld display device is positioned. The method includes the steps of: capturing an image of the physical page using an image sensor of the device; determining a page identity for the physical page; retrieving a page description corresponding to the page identity; rendering a page image based on the retrieved page description; estimating a first pose of the device relative to the physical page; estimating a second pose of the device relative to a user's viewpoint; determining a projected page image for display by the device; and displaying said projected page image on a display screen of said device. The display screen provides a virtual transparent viewport onto the physical page irrespective of a position and orientation of the device relative to the physical page.