An LSTM based Rate and Distortion Prediction Method for Low-delay Video Coding

In this paper, an LSTM based rate-distortion (R-D) prediction method for low-delay video coding has been proposed. Unlike the traditional rate control algorithms, LSTM is introduced to learn the latent pattern of the R-D relationship in the progress of video coding. Temporal information, hierarchical coding structure information and the content of the frame which is to be encoded have been used to achieve more accurate prediction. Based on the proposed network, a new R-D model parameters prediction method is proposed and tested on test model of Versatile Video Coding (VVC). According to the experimental results, compared with the state-of-the-art method used in VVC, the proposed method can achieve better performance.