Title :
A Whole-Frame Error Concealment Algorithm Based on Optical Flow Estimation in H.264/AVC
Author :
Yang, Shuai ; Zhao, Yan ; Chen, Hexin
Author_Institution :
New Commun. Tech. Key Lab., Jilin Univ., Changchun, China
Abstract :
Video communication over wireless network may cause whole-frame loss. To solve the problem, in this paper we proposed a novel whole-frame concealment method. We firstly calculate the optical flow of the previous frame of the lost frame. Then the MV of each pixel in the lost frame is obtained by using the motion information of its previous frame. Finally, with the MVs we can conceal the lost frame pixel by pixel. Experimental results show that the proposed method outperforms the existing methods in JM on both PSNR and visual quality.
Keywords :
image sequences; video coding; video communication; H.264/AVC estimation; optical flow estimation; video communication; whole frame error concealment algorithm; Automatic voltage control; Error correction; Image motion analysis; Laboratories; Motion estimation; Optical fiber networks; Optical losses; PSNR; Video coding; Wireless networks;
Conference_Titel :
Information Engineering and Computer Science, 2009. ICIECS 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4994-1
DOI :
10.1109/ICIECS.2009.5362747
