摘要
Because of the iterative process in the rate control algorithm of the H.264 draft, it is not suitable for real-time transmission. A two-layer real-time rate control algorithm based on the Lagrange optimum algorithm is proposed. This algorithm consists of two layers, namely, the group of pictures （GOP） layer and the frame layer. The simulation results show that the proposed algorithm is competitive in terms of peak signal-to-noise ratio （PSNR）, real bitrates and the Q-value among frames over the original algo- rithm.
Because of the iterative process in the rate control algorithm of the H.264 draft, it is not suitable for real-time transmission. A two-layer real-time rate control algorithm based on the Lagrange optimum algorithm is proposed. This algorithm consists of two layers, namely, the group of pictures （GOP） layer and the frame layer. The simulation results show that the proposed algorithm is competitive in terms of peak signal-to-noise ratio （PSNR）, real bitrates and the Q-value among frames over the original algo- rithm.
基金
Supported by the National High-Technology Research and Development Program of China (863 Program) (2001AA132050-03)
the Key Project of Chinese Ministry of Education (211CERS-10)
