Patent ID: 11889081
Assignee: ORANGE
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A coding method for coding a coded data stream representative of at least one image by a coding device, said image being split into blocks, the coding method comprises, for at least one block of the image, referred to as a current block:
coding an item of information indicating a coding mode of the current block,
determining the coding mode of the current block from among at least a first and a second coding mode;
obtaining a quantization parameter,
when the coding mode of the current block corresponds to a first coding mode, coding the current block comprising determining a first quantization step according to the quantization parameter to quantize a prediction residue associated with the current block in a transform domain,
when the coding mode of the current block corresponds to a second coding mode, coding the current block comprising determining a second quantization step according to the quantization parameter to quantize a prediction residue associated with the current block in a spatial domain.