3D Video Bitstream Auxiliary Data for Stereo-Pair Parallax Accuracy

The patent applies preliminary action by embedding supplemental auxiliary information (including parallax information and view position information) into the bitstream during the encoding phase. This allows the decoding device to obtain accurate stereo-pair construction parameters without increasing decoding complexity, thereby resolving the contradiction between encoding simplicity and display quality.

The patent applies parameter changes by introducing rendering precision parameters (such as quarter-pixel, half-pixel, or full-pixel precision) as supplemental auxiliary information in the bitstream. This allows the decoding device to adjust the synthesis precision according to the embedded parameters without performing complex calculations, thereby resolving the contradiction between video quality and calculation complexity.

The patent applies the taking out principle by extracting and embedding only the essential supplemental auxiliary information (such as parallax information, view position information, and rendering precision parameters) into the bitstream, rather than including all possible data. This selective extraction maintains stereo-pair construction accuracy while minimizing the increase in bitstream volume.

The patent applies the intermediary principle by using supplemental auxiliary information as a mediator between the encoded three-dimensional video sequence and the stereo-pair construction process. This intermediary provides necessary guidance parameters (such as view position and parallax information) that enable accurate stereo-pair construction without requiring complex real-time synthesis calculations, thereby reducing visual fatigue while maintaining manageable encoding and decoding complexity.