2 results about "Ratio value" patented technology

A method of coding implemented by a decoding device or encoding device, the method comprising obtaining a value of an angle parameter for a current block; obtaining a value of a width of the current block and a value of a height of the current block; calculating a ratio value between the value of the width and the value of height; obtaining a first value according to the value of angle parameter and the ratio value; calculating a sample distance value for a sample in the current block according to the first value; obtaining a prediction value for the sample in the current block according to the sample distance value.

Systems, methods, and instrumentalities may be configured for coding tree unit (CTU) grid shifting. An exemplary video decoding device may receive a picture encoded based on a ratio value. The device may receive a ratio value corresponding to the picture. The device may decode the picture based on the ratio value. The ratio value may correspond to a picture corresponding to a maximum gain. Decoding the picture based on the ratio value may include decoding the picture based on the maximum gain.