Advanced rate control technologies for 3D-HDTV digital coding based on MPEG-2 multi-view profile

This paper describes advanced rate control technologies suitable for the digital compression coding based on MPEG-2 multi-view profile for transmitting three dimensional stereo HDTV signals at bit-rates 45 Mbps for PDH networks or 52 Mbps for SDH networks. First of all, a common buffer control is introduced, which achieves statistical multiplexing effect while keeping the picture qualify of both the left and right pictures well balanced. Under the assumption of applying this common buffer control, we investigate the optimal setting of GOP structure which has a close relation with the rate control. And then, a discriminatory bit allocation is proposed which improves the left picture quality without any degradation of the right picture. From the results of coding experiment conducted to evaluate the coding picture achieved by this coding scheme, it is confined that our coding scheme gives satisfactory picture quality even at 45 Mbps including audio and FEC data