Apparatus and method for encoding video
AssigneeSamsung Electronics Co., Ltd.
InventorsYOUNG-BEOM JUNG, JUNGYEOP YANG, HYUK JAE JANG
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Abstract
A video encoding apparatus includes at least one processor. The at least one processor is configured to adjust a size of a first quantization parameter with reference to a characteristic of quantization coefficients generated from input data by using the first quantization parameter, to determine the first quantization parameter of the adjusted size as a final quantization parameter, and to quantize the input data by using the final quantization parameter to generate output data.
Claims20
A video encoding apparatus which includes at least one processor, wherein the at least one processor is configured to:
- adjust a size of a first quantization parameter with reference to a characteristic of quantization coefficients generated from input data by using the first quantization parameter;
- determine the first quantization parameter of the adjusted size as a final quantization parameter;
- and
- quantize the input data by using the final quantization parameter to generate output data.
A video encoding method which is performed by at least one processor, the method comprising:
- performing quantization on input data by using a first quantization parameter to generate quantization coefficients;
- adjusting a size of the first quantization parameter with reference to a characteristic of the quantization coefficients generated by using the first quantization parameter;
- determining the first quantization parameter of the adjusted size as a final quantization parameter;
- and
- quantizing the input data by using the final quantization parameter to generate output data.
A video encoding method which is performed by at least one processor, the method comprising:
- determining at least one transformation unit associated with a coding unit;
- performing frequency transformation on pieces of residual data included in the at least one transformation unit to generate transformed coefficients associated with the at least one transformation unit;
- performing quantization on the transformed coefficients by using a first quantization parameter to generate quantization coefficients;
- adjusting a size of the first quantization parameter with reference to a characteristic of the quantization coefficients generated by using the first quantization parameter, to determine a final quantization parameter;
- and
- quantizing the transformed coefficients by using the determined final quantization parameter.
Dependencies are inferred from the claim text.