Error concealment techniques using intra-modes and weighted interpolation in H.264 decoder

In today´s digital multimedia communication field different compression standards are evaluated for better visual and audio quality with low bitrates and storage space. The main goal of the standard is to providing unique display place for video applications. The Digital video standard H.264 /AVC aims at having significant improvements in coding efficiency and quality. H.264 is the standard that reduce irrelevant information and error without using extra bandwidth compared to previous standards such as MPEG-2, H.261, H.263. In digital world, due to challenges in different video applications there are many packet losses and damages are created because of transmission error or loss. So, in this paper to overcome related issues the algorithm was developed for post processing error concealment is weighted interpolation and another technique used that is Intra prediction which conceal damaged macroblocks using prediction modes. An experimental performance shows that weighted interpolation is create visible artifacts in edge region also, with degraded PSNR than proposed algorithm. Intra prediction has better objective quality than weighted Interpolation and EIPMS (Efficient Intra prediction mode selection) algorithm.