Asvfi: audio-driven speaker video frame interpolation

Due to limited data transmission, the video frame rate is low during the online conference, severely affecting user experience. Video frame interpolation can solve the problem by interpolating intermediate frames to increase the video frame rate. Generally, most existing video frame interpolation methods are based on the linear motion assumption. However, the mouth motion is nonlinear, and these methods can not generate superior intermediate frames in speaker video. Considering the strong correlation between mouth shape and vocalization, a new method is proposed, named Audio-driven Speaker Video Frame Interpolation(ASVFI). First, we extract the audio feature from Audio Net(ANet). Second, we use Video Net(VNet) encoder to extract the video feature. Finally, we fuse the audio and video features by AVFusion and decode out the intermediate frame in the VNet decoder. The experimental results show that the PSNR is nearly 0.13dB higher than the baseline of interpolating one frame. When interpolating seven frames, the PSNR is 0.33dB higher than the baseline.