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