Frame Based Error Concealment in H.264/AVC by Refined Motion Prediction

Author

Feng, Hsin-Ju ; Kuo, Chih-Hung

Author_Institution

Dept. of Electr. Eng., National Cheng Kung Univ., Tainan

fYear

2006

fDate

4-7 Dec. 2006

Firstpage

247

Lastpage

250

Abstract

In the transmission of low bit-rate video bit-stream, a packet loss usually results in whole frame loss, and the frame based error concealment (FBEC) becomes a necessary technique for video decoders in many real time applications. In this paper, we propose a method of FBEC to improve the visual quality in H.264/AVC decoders. The lost frames are reconstructed by predicting motion vectors from neighbor macro-blocks of the previous frames. With the proposed algorithm, the decoding performance measured in PSNR is around 1dB higher than that of JM10.0. The subjective quality also improves significantly. This method has little overhead of extra computing components, and may be easily implemented in hardware

Keywords

error correction; motion estimation; video coding; H.264/AVC decoders; advanced video coding; frame based error concealment; low bit-rate video bit-stream; motion vectors; packet loss; refined motion prediction; video decoders; visual quality; Automatic voltage control; Codecs; Decoding; Hardware; Image motion analysis; Optical losses; PSNR; Performance loss; Propagation losses; Protocols; Error concealment; Frame-based error concealment (FBEC); H.264; H.264/AVC whole-frame losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on

Conference_Location

Singapore

Print_ISBN

1-4244-0387-1

Type

conf

DOI

10.1109/APCCAS.2006.342378

Filename

4145377