Patent ID: 11942969
Assignee: INTERDIGITAL MADISON PATENT HOLDINGS, SAS
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A non-transitory computer readable storage media having video signal data encoded thereupon, comprising:
transform coefficients encoded for at least a portion of a picture, the transform coefficients obtained using a plurality of transform sizes; and
bitstream syntax indicative of a rule for creating a context sharing map wherein the context sharing map is defined as a map indicative of a probability model for one or more bins of a binary sequence created by uniquely mapping a given non-binary syntax element shared among different transform coefficient positions;
wherein one or more context sharing maps are generated for the transform coefficients based on the rule used for transformed portion of the picture by a video decoder, the one or more context sharing maps for providing at least one context that is shared among at least some of the transform coefficients obtained from at least two different ones of the plurality of transform sizes.