ERROR RESILIENT CODING BASED ON REVERSIBLE DATA EMBEDDING TECHNIQUE FOR H.264/AVC VIDEO (WedAmOR4)

Author(s) : Wen-Nung Lie (National Chung Cheng University, Taiwan) Tom Lin (National Chung Cheng University, Taiwan) Dung-Chan Tsai (National Chung Cheng University, Taiwan) Guo-Shiang Lin (National Chung Cheng University, Taiwan)

Abstract : In this paper, a prescription-based error concealment (PEC) method is proposed. PEC relies on pre-analyses of the concealment error image (CEI) for I-frames and the optimal error concealment scheme for P-frames at encoder side. CEI is used to enhance the image quality at decoder side after spatial interpolation of the corrupted intra-coded MBs. A set of pre-selected error concealment methods is evaluated for each corrupted inter-coded MB to determine the optimal one for the decoder. Both the CEI and the scheme indices are considered as the prescriptions for decoder and transmitted along with the video bit stream based on a reversible data embedding technique. Experiments show that the proposed method is capable of achieving PSNR improvement of up to 3.32 dB, at a bit-rate increase of 9.01%, when the packet loss rate is 20%.

Menu