DCT domain intra MB mode decision for MPEG-2 to H.264 transcoding

Author

Petjanski, B. ; Kalva, Hari

Author_Institution

Comput. Sci. & Eng., Florida Atlantic Univ., Boca Raton, FL

fYear

2006

fDate

7-11 Jan. 2006

Firstpage

419

Lastpage

420

Abstract

This paper presents a macroblock (MB) mode estimation technique for MPEG-2 to H.264 intra frame video transcoding. This technique can be applied in number of consumer electronic applications such as DVRs and content delivery systems. The DCT coefficients gathered from the MPEG-2 process are used to estimate the MB coding mode. The estimated mode is used to constrain the MB prediction mode computation just to the estimated MB mode. Our approach uses the DCT coefficients obtained during the MPEG-2 decoding stage and classifies an MB as INTRA16times16 or INTRA4times4. The computational cost of the DCT domain operations is negligible but results in substantial savings in the H.264 mode estimation. The results show that the PSNR drop caused by this direct estimation is negligible

Keywords

consumer electronics; discrete cosine transforms; transcoding; transform coding; video coding; DCT domain; H.264 transcoding; MPEG-2; PSNR; consumer electronic applications; decoding; macroblock mode estimation technique; video transcoding; Computational efficiency; Consumer electronics; Costs; Decoding; Discrete cosine transforms; PSNR; Tellurium; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on

Conference_Location

Las Vegas, NV

Print_ISBN

0-7803-9459-3

Type

conf

DOI

10.1109/ICCE.2006.1598489

Filename

1598489