{HEAD ~ inverse} transforming the demultiplexed signals to obtain image domain signals representative of {TAIL ~ subsampled spatially offset frames}; and 
{ HEAD ~ inverse } transforming the demultiplexed signals to obtain image domain signals representative of { TAIL ~ subsampled spatially offset frames } ; and
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH