CPC H04N 19/96 (2014.11) [H04N 19/124 (2014.11); H04N 19/129 (2014.11); H04N 19/13 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/30 (2014.11); H04N 19/439 (2014.11); H04N 19/44 (2014.11); H04N 19/463 (2014.11); H04N 19/513 (2014.11); H04N 19/52 (2014.11); H04N 19/53 (2014.11); H04N 19/593 (2014.11); H04N 19/70 (2014.11); H04N 19/46 (2014.11)] | 16 Claims |
1. A decoder for reconstructing an array of information samples from a data stream, the array of information samples representing a spatially sampled information signal, which is subdivided into residual blocks of different sizes by recursively portioning the array of information samples according to a primary multi-tree subdivision and a secondary multi-tree subdivision, wherein the decoder comprising a processor is configured to:
extract a maximum region size from the data stream;
use the primary multi-tree subdivision in order to sub-divide the spatially sampled information signal into prediction blocks;
subdivide prediction blocks of the primary multi-tree subdivision being greater than the maximum region size into blocks of the maximum region size so as to obtain tree root blocks for the secondary multi-tree subdivision;
use the secondary multi-tree subdivision so as to sub-divide the tree root blocks into the residual blocks;
extract, for each leaf block of the primary multi-tree subdivision greater than the maximum region size, an inheritance information from the data stream, the inheritance information indicating as to whether inheritance is used or not; and
if inheritance is indicated to be used, share a coding parameter among the residual blocks encompassed by the respective leaf block of the primary subdivision.
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