Patent ID: 11924430
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A data decoding method comprising:
decoding an array of residual data values representing a residual image region corresponding to an image region, the array including data representing a data value magnitude and data representing a data value sign;
determining a mode to be a transform skip mode;
predicting, by circuitry, a respective data value sign for a set of the residual data values from a property of one or more other residual data values in the array at predetermined locations in the image region, the predicting from the property of the one or more other residual data values in the array only occurring only when the mode is determined to be the transform skip mode; and
context adaptive decoding the data value sign for the set of data values where the context depends upon the respective predicted data value sign predicted from the property of the one or more other residual data values in the array.