A fast H.264-based picture-in-picture (PIP) transcoder

Author

Li, Chih-Hung ; Lin, Hun ; Wang, Chung-Neng ; Chiang, Tihao

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

3

fYear

2004

fDate

27-30 June 2004

Firstpage

1691

Abstract

The work presents a novel and fast transcoding scheme with PIP (picture-in-picture) functionality, based on the H.264/AVC standard. We seamlessly achieve significant speedup and maintain identical video quality for the composite video content using two H.264 bitstreams. The proposed partial re-encoding transcoder (PRET) method, based on the intra-prediction refinement, inter-prediction refinement and rate-distortion optimization, has sped up by 8 times compared with rate-distortion (R-D) based optimization alone. In addition, the performance of the PRET is better than that of the R-D re-encoding algorithm.

Keywords

optimisation; transcoding; video coding; H.264/AVC standard; PIP transcoder; PRET; composite video content quality; dual H.264 bitstreams; fast H.264-based picture-in-picture transcoder; inter-prediction refinement; intra-prediction refinement; partial re-encoding transcoder; rate-distortion optimization; Bandwidth; Decoding; Multimedia systems; Optimization methods; Rate-distortion; Standards development; TV; Transcoding; Video compression; Video on demand;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on

Print_ISBN

0-7803-8603-5

Type

conf

DOI

10.1109/ICME.2004.1394578

Filename

1394578