| 摘要 |
[Problem] To moderate the decrease of encoding efficiency accompanying the update of a quantization matrix. [Solution] Provided is an image processing device provided with: an acquisition unit for acquiring a quantization matrix parameter from an encoded stream wherein the quantization matrix parameter defining a quantization matrix is set in a parameter set different from a sequence parameter set and a picture parameter set; a setting unit for setting a quantization matrix to be used at the time of the inverse quantization of data decoded from the encoded stream, on the basis of the quantization matrix parameter acquired by the acquisition unit; and an inverse quantization unit for inverse quantization of the data decoded from the encoded stream using the quantization matrix set by the setting unit. |
