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