Abstract: A 3D video data stream including a set of coded views coded in the 3D video data stream in temporal units is shown. The 3D video data stream further includes a parameter set including a first table having an entry for each coded view which indicates by indexing for the respective coded view a number of reference views for which a relative camera parameter is present in the data stream, wherein a scope of the parameter set is beyond the scope of the temporal units.
Type:
Grant
Filed:
August 4, 2017
Date of Patent:
October 1, 2019
Assignee:
Fraunhofer-Gesellscaft zur Foerderung der angewandten Forschung e.V.
Inventors:
Gerhard Tech, Karsten Suehring, Detlev Marpe, Thomas Wiegand
Abstract: In an inventive method for encrypting a discrete signal consisting of successive samples the successive samples are subdivided into successive time blocks, and the successive time blocks are then encoded into encoded data blocks having a predetermined order. Subsequently, the predetermined order of the encoded data blocks is altered in accordance with a predetermined interchange specification. The underlying findings are that a very high level of security of the encryption may be achieved by introducing temporal discontinuity, and that the occurrence of errors in unauthorized processing of signals encoded in such a manner maybe prevented, and the compatibility with standard codings may be ensured by performing the alteration of the chronological order in accordance with a coding of the discrete signal, i.e. with regard to encoded data blocks into which an encoder encodes the discrete signal.
Type:
Grant
Filed:
August 2, 2002
Date of Patent:
August 27, 2013
Assignee:
Fraunhofer-Gesellscaft zur Foerderung der Angewandten Forschung E.V.
Inventors:
Sascha Disch, Johannes Hilpert, Manfred Lutzky, Marc Gayer, Reinfried Bartholomaeus