2D+Delta codec is part of H264
The 2D+Delta Format by TDVision Systems, makes use of redundancies between the left and right stereoscopic views. This is accomplished by encoding a full resolution 2D view and only the Delta Difference information between the left and the right views. This difference is stored into the video stream in a format that updated decoders and 3D displays can play out in any 3D format at the highest quality possible while legacy 2D televisions play the stream in 2D.
Read the press release here on VirtualPressOffice.