| 摘要 |
The invention relates to a method of selecting data of a compressed digital signal comprising a plurality of levels of spatial granularity of data, in a communication network comprising at least two communication apparatuses connected together by the network, the digital signal being available at least at one, so-called first, of the communication apparatuses, the data being adapted to be transmitted from the first apparatus to the other, so-called second, communication apparatus, and that data being sufficient to reconstitute a spatial part of the signal termed region of interest which is specified at the second apparatus, characterized in that the method comprises the following steps: determining (S 76 ; S 78 ; S 80 ) at least one level of spatial granularity of data as a function of the region of interest and of the structure and organization of the data in the signal; selecting (S 77 ; S 79 ; S 81 ) data for each determined level of granularity as a function of the region of interest and of the structure and organization of the data in the signal.
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