A NOVEL METHOD TO REALIZE COMPRESSED VIDEO SUPER-RESOLUTION RECONSTRUCTION

作     者：Zhou Liang Liu Feng Zhu Xiuchang Zhou Liang Liu Feng Zhu Xiuchang (Information Industry Ministry and Jiangsu Province Key Lab of Image Processing and Image Communication, Nanjing University of Posts and Communications, Nanjing 210003, China)

作者机构：Information Industry Ministry and Jiangsu Province Key Lab of lmage Processing and Image Communication Nanjing University of Posts and Communications Nanjing 210003 China 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2006年第23卷第2期

页      面：310-313页

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

基　　金：Supported by the Natural Science Foundation of Jiangsu Province (No. BK2004151) 

主　　题：Super-resolution Compressed video Image reconstruction MAP-POCS 

摘      要：This letter proposes a novel method of compressed video super-resolution reconstruction based on MAP-POCS (Maximum Posterior Probability-Projection Onto Convex Set). At first assuming the high-resolution model subject to Poisson-Markov distribution, then constructing the projecting convex based on MAP. According to the characteristics of compressed video, two different convexes are constructed based on integrating the inter-frame and intra-frame information in the wavelet-domain. The results of the experiment demonstrate that the new method not only outperforms the traditional algorithms on the aspects of PSNR (Peak Signal-to-Noise Ratio), MSE (Mean Square Error) and reconstruction vision effect, but also has the advantages of rapid convergence and easy extension.