US 12,192,505 B2
Use of transformed coefficients to provide embedded signalling for watermarking
Simone Ferrara, London (GB); and Guido Meardi, London (GB)
Assigned to V-NOVA INTERNATIONAL LIMITED, London (GB)
Appl. No. 17/766,114
Filed by V-NOVA INTERNATIONAL LIMITED, London (GB)
PCT Filed Oct. 2, 2020, PCT No. PCT/GB2020/052421
§ 371(c)(1), (2) Date Apr. 1, 2022,
PCT Pub. No. WO2021/064414, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/984,261, filed on Mar. 2, 2020.
Claims priority of application No. 1914215 (GB), filed on Oct. 2, 2019; application No. 1914414 (GB), filed on Oct. 6, 2019; application No. 1914416 (GB), filed on Oct. 6, 2019; application No. 1915553 (GB), filed on Oct. 25, 2019; application No. 2000430 (GB), filed on Jan. 12, 2020; application No. 2001408 (GB), filed on Jan. 31, 2020; application No. 2006183 (GB), filed on Apr. 27, 2020; and application No. 2010015 (GB), filed on Jun. 30, 2020.
Prior Publication US 2022/0360806 A1, Nov. 10, 2022
Int. Cl. H04N 19/467 (2014.01); H04N 19/124 (2014.01); H04N 19/154 (2014.01); H04N 19/156 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/33 (2014.01)
CPC H04N 19/467 (2014.11) [H04N 19/124 (2014.11); H04N 19/154 (2014.11); H04N 19/156 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/33 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method of performing signal decoding operations on one or more portions of a signal,
wherein the performing is based at least in part on information embedded in one or more values received in one or more encoded data layers transmitted within a stream of encoded data,
wherein said values are associated with transformed coefficients intended to be processed by a decoder for deriving elements of the signal,
wherein said information comprises an indication of watermarking information associated with the signal,
wherein the stream of encoded data is comprised within an encoded bitstream, and
wherein at least one bit in the encoded bitstream is used to signal to the decoder that one or more values should be interpreted as said information rather than actual quantized values of transformed coefficients.