Video Noise Reduction Using H.264 Multi-Frame Trajectory Jong-Tzy

In this paper, we propose a spatio-temporal filtering scheme that utilizes motion compensation with multireference frames in H.264 to remove noise. It utilizes the variation of inter mode distributions to detect noise and determine the parameters for spatial filter. In the time domain, a reference pixel is selected from multireference frames according to the motion trajectory and MSE criterion. The proposed adaptive spatial filter and non-linear temporal filter can effectively remove Gaussian and impulse noises to improve video quality up to 0.83dB and 8.17dB in PSNR respectively. Meanwhile, it can also boost the compression efficiency by reducing the bitrate up to 84.85% in our experiments.