Baseline JPEG-like DWT CODEC for disparity compensated residual coding of stereo images

Author

Nayan, M.Y. ; Edirisinghe, E.A. ; Bez, H.E.

Author_Institution

Dept. of Comput. Sci., Loughborough Univ., UK

fYear

2002

fDate

2002

Firstpage

67

Lastpage

74

Abstract

We propose a novel stereo image coding technique, which uses an architecture similar to that of a discrete cosine transform (DCT) based baseline JPEG-CODEC (Pennebaker and Mitchell, 1993), but effectively replaces the DCT technology by the more recently popularized discrete wavelet transform (DWT) technology. We show that as a result of this hybrid design, which combines the advantage of two popular technologies, the proposed CODEC has improved rate distortion and subjective image quality performance as compared to DCT based stereo image compression techniques (Perkins, 1992). In particular, at very low bit rates (0.15 bpp), we report peak-signal-to-noise-ratio (PSNR) gains of up to 3.66 dB, whereas at higher bit rates we report gains in the order of 1 dB.

Keywords

code standards; codecs; data compression; discrete wavelet transforms; image coding; stereo image processing; 0.15 bit/s; DCT; DWT CODEC; JPEG; discrete cosine transform; discrete wavelet transform; disparity compensated residual coding; image quality; peak-signal-to-noise-ratio; rate distortion; stereo image coding; stereo image compression; very low bit rates; Bit rate; Codecs; Discrete cosine transforms; Discrete wavelet transforms; Displays; Image coding; Layout; Rate-distortion; Redundancy; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Eurographics UK Conference, 2002. Proceedings. The 20th

Print_ISBN

0-7695-1518-5

Type

conf

DOI

10.1109/EGUK.2002.1011274

Filename

1011274