| 摘要 |
A video encoding apparatus includes a predictor to perform prediction for an input image signal to generate a prediction image signal, a subtractor to calculate a difference between the input image signal and the prediction image signal to generate a prediction residual signal, a transformer to transform the prediction residual signal to generate a transform coefficient, a modulating unit to perform modulation on a quantization matrix to obtain a modulated quantization matrix, a quantizer to quantize the transform coefficient using the modulated quantization matrix to generate a quantized transform coefficient, and an encoder to encode the quantized transform coefficient and a modulation index to generate encoded data. |
