Patent ID: 11968395
Assignee: GE VIDEO COMPRESSION, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 25:
26. A non-transitory computer-readable medium for storing information related to a plurality of transform coefficients associated with an encoded video, comprising: a data stream stored in the non-transitory computer-readable medium, the data stream comprising encoded information related to first and second symbols of a current transform coefficient, and instructions to process the first and second symbols based on a method comprising:
entropy decoding, for a current transform coefficient in a transform coefficient block, a first symbol including a coefficient significance flag based on a context, wherein the context is determined based on an operation involving a first previously decoded transform coefficient;
extracting a second symbol of the current transform coefficient from the data stream;
mapping, for the current transform coefficient, the second symbol to a transform coefficient level based on a symbolization parameter, wherein the transform coefficient level is greater than a maximum level associated with the first symbol and the symbolization parameter is determined based on the operation involving a second previously decoded transform coefficient and an information component type including a color component type related to the transform coefficient block; and
applying predictive coding based on a prediction residual signal to reconstruct a block of a picture of the video, wherein the prediction residual signal is associated with the first symbol and the transform coefficient level,
wherein the first previously decoded transform coefficient is determined based on a relative spatial arrangement of the first previously decoded transform coefficient relative to the current transform coefficient, wherein the spatial arrangement is based on a scan position of the current transform coefficient in the transform coefficient block.