Patent ID: 9516331
Filing Date: 2016-12-06
CPC Classification: H04N

Claim Text:
1. A method for de-encapsulating comprising the following steps: receiving a binary train comprising a plurality of substreams of coded data, a substream of data being obtained by entropy coding of a sub-sequence of symbols which is representative of an image or of a series of images, the substreams of coded data being grouped into pairs of substreams according to an order of predetermined iterative scanning of said plurality of substreams, said pairs of substreams comprising a first and a second substream being symmetrical by reversal of an order of the data making up the second substream of the pair, extracting information items from the binary train relating to a number of substreams and to sizes of pairs of substreams; scanning useful data of the binary train received, in the course of which the following steps are implemented: wherein, in said binary train, the first and the second substreams are split into fragments of fixed size and the fragments are grouped into pairs of symmetric fragments by tapping off, for each pair, a first fragment in the first substream of the pair from the start of the data relating to the pair of substreams, according to a usual direction of reading, and a second fragment in the second substream of the pair from the end of the data relating to the pair of substreams, according to a reverse direction of reading, and the step of extracting furthermore comprises extracting information items relating to the fixed size of a fragment, and the identifying and dispatching steps are applied to the pairs of symmetric fragments.