| 摘要 |
A moving picture coding apparatus for coding a moving picture and a moving picture decoding apparatus for decoding a coded moving picture are provided. The moving picture coding apparatus is operative to divide a picture signal of a picture frame of N pixelsxM lines (horizontal N pixels, vertical M lines) to be coded between a first picture portion serving as the inside picture portion having picture frame of N1 pixelsxM1 lines (N1<=N, M1<=M) and a second picture portion serving as picture portion outside the first picture portion to divide the first and second picture portions in independent predetermined divisional units comprised of a plurality of pixels, and to add peculiar discrimination codes to headers of divisional units in transmitting coded information of predetermined divisional units belonging to the second picture portion.The moving picture decoding apparatus is operative so that when only decoding ability of picture frame of N1 pixelsxM1 lines is provided, it reproduces only the first picture portion, and detects any one of discrimination codes added to headers of predetermined divisional units comprised of a plurality of pixels belonging to the second picture portion with respect to the second picture portion to discriminate it, thus to read, in a skipped manner, coded information of the second picture portion.
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