Efficient lossless video coding compatible with MPEG-2

Author

Oam, Ryoma ; Ohta, Mutsumi

Author_Institution

C&C Media Res. Labs., NEC Corp., Kawasaki, Japan

Volume

2

fYear

1998

fDate

7-11 Jun 1998

Firstpage

901

Abstract

This paper proposes a DCT-based lossless video coding scheme that has compatibility with MPEG-2. It is obtained by modifying the DCT and the quantization process in MPEG-2, and it outperforms lossless coding based on an ordinary DCT by 20% in terms of the compression ratio. In addition, the compressed data can be decoded not only with the corresponding decoding algorithm but also with MPEG-2. The images decoded with MPEG-2 retain high quality and a PSNR that exceeds 40 dB. This lossless coding scheme is suitable for applications where contribution quality is required, such as inter-studio transmission and video cassette recording in studios

Keywords

data compression; decoding; discrete cosine transforms; image sequences; quantisation (signal); transform coding; video coding; DCT; MPEG-2; PSNR; compressed data; compression ratio; contribution quality; decoding algorithm; high image quality; inter-studio transmission; lossless video coding; quantization process; video cassette recording; video sequences; Decoding; Discrete cosine transforms; Image coding; PSNR; Propagation losses; Quantization; Transform coding; Video coding; Video compression; Video recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-4788-9

Type

conf

DOI

10.1109/ICC.1998.685142

Filename

685142