This Recommendation specifies network service operator's requirements for a real-time transmission system for signals in the extended LSDI hierarchy@ including an encoder and a decoder. Appendix II describes@ for information purposes@ a method based on the use of parallel processing for encoding images in the extended LSDI hierarchy. The described parallel processing includes a spatially segmented method@ a temporally interleaved method@ a frequency sub-band division method and possible hybrid schemes of those methods. NOTE ?C The structure and content of this Recommendation have been organized for ease of use by those familiar with the original source material; as such@ the usual style of ITU-T recommendations has not been applied.