A technique for encoding an interlaced picture comprises {HEAD ~ the steps} of rearraying the interlaced picture on a scanning line basis, splitting {TAIL ~ the re arrayed picture} into a plurality of first block portions and splitting the re arrayed picture into a plurality of second block portions 
of splitting
A technique for encoding an interlaced picture comprises { HEAD ~ the steps } of rearraying the interlaced picture on a scanning line basis , splitting { TAIL ~ the re arrayed picture } into a plurality of first block portions and splitting the re arrayed picture into a plurality of second block portions
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