Patent Number: 6,297,803

Title: Apparatus and method for image display

Abstract: A mobile data apparatus equipped with a display is improved in both operability and mobility include a frame difference detector 4 for detecting a change in image between two consecutive frames transferred from a pair of frame buffers 2 and 3. The change in image is used in a barycenter calculator 5 for calculating the barycenter of each image. The barycenter is saved in a barycenter coordinates memory 6. A camera movement calculator 6 calculates a difference between the barycenter saved in the barycenter coordinates memory 6 and a reference barycenter saved in a barycenter coordinates memory 7 to determine a horizontal pixel shift DPx and a vertical pixel shift DPy of a camera. In response to those shifts, a horizontal angle-of-rotation controller 9 and a vertical angle-of-rotation controller 10 determine angles of rotation along the horizontal and vertical directions hx and hy for a virtual camera 11. Accordingly, the view of the virtual camera 11 can duly be controlled.

Inventors: Numaoka; Chisato (Kanagawa, JP)

Assignee: Sony Corporation

International Classification: H04N 7/18 (20060101); H04N 5/232 (20060101); G09G 005/00 ()

Expiration Date: 10/02/2018