Analysis of the alternatives for stereo multiplex in 3DTV broadcast delivery

Although 3DTV has led the evolution of television market, its delivery by broadcast networks is still small. Now, 3DTV transmissions are usually done by combining both views into one common frame (side by side) to be able to use standard HDTV transmission equipment. Today, orthogonal subsampling is mostly used, but other alternatives will appear soon. Here, different subsampling schemes for both progressive and interlaced 3DTV are considered. For each possible scheme, its preserved frequency content is analyzed and a simple interpolation filter is designed. The analysis is carried out for progressive and interlaced video and the designed filters are applied on different sequences, showing the advantages and disadvantages of the different options.