Patent ID: 9438906
Filing Date: 2016-09-06
CPC Classification: H04N

Claim Text:
1. A method of encoding an image into a coded image, the method comprising: writing a quantization offset parameter into the coded image, the quantization offset parameter being determined based on a difference between (i) a first quantization parameter of coding units of the image coded by a predetermined prediction mode, the predetermined prediction mode being of a predetermined type and (ii) a second quantization parameter of coding units of the image coded by another prediction mode different from the predetermined prediction mode; generating a predicted image sample for a block of image samples of the image based on a prediction mode type for coding the block of image samples into a coding unit of the coded image; determining a quantization parameter for the block of image samples; and determining if the prediction mode type is of the predetermined type, wherein if the prediction mode type is of the predetermined type, the method further comprises: wherein if the prediction mode type is not of the predetermined type, the method further comprises: