Non-causal Temporal Prior for Video Deblocking

This package includes results of six video sequences, “calendar”, “city”, “foreman”, “gym”, “pairs”, and “yuna”, as described in the main paper. We provide both the original size video and the cropped details for better comparison. Our method has the best improvement on “foreman” and “yuna”, where the motion is piecewise continuous. Our method does not completely remove the coding artifacts on “gym”, especially in the fast-moving arms and legs. However, compared with the coded sequence and the output by VBM3D, our method still reduces the blocking artifacts and recovers the details better. To reduce the file size, we convert the original AVI files into wmv format. The conversion introduces slight compression artifacts, though these artifacts influence little the overall visual quality. We include one uncompressed avi file “detail foreman mouth” for comparison. The videos are in wmv (Windows Media Video) format. They can be directly played using Windows Media Player in Windows (tested in Windows 7), or using Quicktime with Flip4Mac plugin in Mac (tested in Mac OS X 10.6.5), or using Kaffeine/Xine in Linux. The Flip4Mac plugin can be downloaded at http://windows.microsoft.com/enUS/windows/products/windows-media-player/wmcomponents. Other cross-platform players such as VLC and RealPlayer can also be used to view these videos. We compared our method to the state-of-the-art video denoising algorithm, VBM3D [2]. We used the code from the authors’ website and adjusted the noise level parameter to achieve the best PSNR performance.