Paper Info

Title | ||
---|---|---|

A lossless re-encoding scheme for MPEG-1 video |

Abstract | ||
---|---|---|

This paper proposes a lossless re-encoding scheme for video data which are already encoded by the MPEG-1 video coding standard. In order to avoid any additional loss of quality, quantized DCT coefficients and motion vectors extracted from the original MPEG-1 bitstream are losslessly re-encoded using an adaptive arithmetic coder. Probability models used in the arithmetic coder are iteratively optimized so that the number of coding bits required for the whole group of pictures (GOP) can be a minimum. Furthermore, H.264-like block-adaptive intra prediction is introduced into not only I pictures but also P and B pictures to exploit inter-block correlations of the DCT coefficients. Simulation results indicate that the proposed scheme can reduce the coding rate of monochrome MPEG-1 video by 12-22 %. |

Year | Venue | Keywords |
---|---|---|

2009 | EUSIPCO | data compression,discrete cosine transforms,iterative methods,motion estimation,optimisation,probability,quantisation (signal),video coding,b-pictures,gop,h.264-like block-adaptive intraprediction,i-pictures,mpeg-1 bitstream,mpeg-1 video coding standard,p-pictures,adaptive arithmetic coder,coding bits,coding rate reduction,group-of-pictures,interblock correlations,iteratively optimized probability models,lossless re-encoding scheme,losslessly re-encoded videos,monochrome mpeg-1 video,motion vector extraction,quantized dct coefficients,video data,video quality loss avoidance |

Field | DocType | ISBN |

Computer vision,Coding tree unit,Group of pictures,Context-adaptive variable-length coding,Computer science,Algorithm,Multiview Video Coding,Artificial intelligence,Data compression,Arithmetic coding,Scalable Video Coding,Context-adaptive binary arithmetic coding | Conference | 978-161-7388-76-7 |

Citations | PageRank | References |

2 | 0.45 | 4 |

Authors | ||

4 |

Authors (4 rows)

Cited by (2 rows)

References (4 rows)

Name | Order | Citations | PageRank |
---|---|---|---|

Ichiro Matsuda | 1 | 36 | 10.75 |

Wakabayashi, K. | 2 | 2 | 0.45 |

Ikeda, Y. | 3 | 2 | 0.45 |

Susumu Itoh | 4 | 56 | 14.61 |