Video encoding device, video encoding method, video reproducing device, video reproducing method, video recording medium, and video data stream

摘要

In a system for visualizing a stereoscopic image by displaying separate video images for the left and right eyes, sub-picture data (GRD) is created for the left eye and displayed superimposed on left-eye video data (VDD) as a left-eye sub-picture without change. The right-eye sub-picture (106) is displayed by shifting the horizontal positions at which the sub-picture data created for the left eye is displayed by prescribed widths. For example, the sub picture may include a plurality of objects (GRD-1, GRD-2, . . . , GRD-N); shift widths (108, 110) of the horizontal positions of the left and right ends of the objects are individually set and stored in the sub-picture data for displaying the objects for the right eye. A sub-picture superimposed on a stereoscopic video image can thereby be rendered in the depth direction, and the data size of the sub-picture and the amount of computation required for its display can be reduced.

主权项

1. A video encoding device that generates video data for visualization of a stereoscopic video image by display of separate video images for the left and right eyes, the video encoding device comprising:
a sub-video encoding unit configured to encode data of monoscopic sub-video display images for first and second viewpoints to be displayed superimposed on main video display images for the first and second viewpoints forming the stereoscopic video image, the sub-video display images for the first and second viewpoints displayed as additional video data of the main video display images, thereby generating an encoded sub-video data stream; wherein the sub-video encoding unit encodes the data of one or more objects included in the sub-video display image for the first viewpoint so that the data can be independently decoded and displayed, and the sub-video encoding unit dependently encodes the second viewpoint with respect to the first viewpoint by only encoding depth expressions determined by performing at least an expansion or contraction, in a horizontal direction, of one or more objects included in the sub-video display image for the second viewpoint with respect to corresponding objects included in the sub-video display image for the first viewpoint thereby changing the shape of said one or more objects and the perspective view of said second viewpoint.