FRD-FPRED: A Novel Re-Decode Based Error Compensation Method Using Fast Re-Decoding and Fast Prediction Algorithm
نویسندگان
چکیده
This study aims at finding an efficient compensation method of transmission errors in low bitrate mobile communications using the H.263 video codec. For this aim, we suggest a novel error compensation method in the encoder (or transmitter), that can remove visual quality degradation due to spatio-temporal error propagation by utilizing a feedback channel. Most of all, our proposed method can reduce the computational complexity of the re-decoding method and FRD(Fast Re-Decoding) method by using the characteristic for not error-propagated macroblocks. Experimental results show that the proposed error compensation method can give higher coding efficiency compared with the other two non re-decoding based existing ones: the reference picture selection(RPS) method and the error tracking(ET) method. Finally, our proposed method requires only 30% in the amount of operations compare to fast redecoding(FRD) procedure.
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