System and method for decoding 3D stereoscopic digital video

摘要

Described herein is a MPEG-2 compatible stereoscopic 3D-video image digital decoding method and system. In order to obtain 3D-images from a digital video stream, modifications are made to the current MPEG2 decoders, by means of software and hardware changes in different parts of the decoding process. Namely, the video_sequence structures of the video data stream are modified via software to include the necessary flags at the bit level of the image type in the TDVision® technology. Modifications are also made in the decoding processes as well as in decoding the information via software and hardware, wherein a double output buffer is activated, a parallel and difference decoding selector is activated, the decompression process is executed, the corresponding output buffer is displayed; and the decoder is programmed via software to simultaneously receive and decode two independent program streams, each with an TDVision® stereoscopic identifier.

主权项

1. A system for displaying a stereoscopic digital video to a user, the system comprising:
a receiver configured to receive a first video stream and a second video stream, the first video stream comprising a first eye image and a header comprising bits, the second video stream comprising a delta, wherein the delta was calculated by determining a difference between the first eye image and a second eye image, wherein the first video stream and the second video stream comprise a time code; a decoder configured to decode video streams; a first bit pattern stored in the receiver and configured to indicate to the decoder that the digital video is not a stereoscopic digital video; a second bit pattern stored in the receiver and configured to indicate to the decoder that the digital video is a stereoscopic digital video, wherein the decoder is configured to:
receive the header in the first video stream and read the bits in the header,compare the received bits with the first bit pattern and the second bit pattern, andoutput a stereoscopic digital video when the received header comprises bits that match the second bit pattern, wherein the stereoscopic digital video comprises the first eye image and a decoded second eye image formed by comparing the delta to the first eye image; and a video output configured to output the stereoscopic digital video.