本文研究了全数字化HDTV图像信源编码方案,在DCT+运动预测补偿的基本方案的基础上进一步对双向预测方案进行了计算机模拟,得出其压缩比约是前向预测时两倍的结论,并对多重DCT方法进行了探索。 Based on the basic scheme of DCT + motion prediction and compensation, the bi-directional prediction scheme is further simulated by computer, and the result shows that the compression ratio is about twice as much as the forward prediction Multiple DCT methods were explored.