Unsupervised image compression-by-synthesis within a JPEG framework

Author

Byrne, James ; Ierodiaconou, Stephen ; Bull, David ; Redmill, David ; Hill, Paul

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Bristol, Bristol

fYear

2008

fDate

12-15 Oct. 2008

Firstpage

2892

Lastpage

2895

Abstract

An image compression scheme is proposed, utilising wavelet- based image segmentation and texture analysis, and patch- based texture synthesis. This has been incorporated into a JPEG framework. Homogeneous textured regions are identified and removed prior to transform coding. These regions are then replaced at the decoder by synthesis from marked samples, and colour matched to ensure similarity to the original. Experimental results on natural images show bitrate savings of over 18% compared with JPEG for little change in measured visual quality.

Keywords

data compression; decoding; image coding; image colour analysis; image matching; image segmentation; image texture; transform coding; wavelet transforms; JPEG framework; colour matching; decoder; image segmentation; image texture analysis; patch-based texture synthesis; transform coding; unsupervised image compression-by-synthesis; visual quality; wavelet; Bit rate; Decoding; Image analysis; Image coding; Image edge detection; Image segmentation; Image texture analysis; Signal synthesis; Transform coding; Wavelet analysis; Image; compression; segmentation; synthesis; texture;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on

Conference_Location

San Diego, CA

ISSN

1522-4880

Print_ISBN

978-1-4244-1765-0

Electronic_ISBN

1522-4880

Type

conf

DOI

10.1109/ICIP.2008.4712399

Filename

4712399