Title :
Unsupervised image compression using graphcut texture synthesis
Author :
Ierodiaconou, Stephen ; Byrne, James ; Bull, David R. ; Redmill, David ; Hill, Paul
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Bristol, Bristol, UK
Abstract :
An unsupervised image compression-by-synthesis system is proposed utilising wavelet based image segmentation and analysis combined with patch based texture synthesis. High perceptual quality is ensured using an artefact detection algorithm in the encoder loop. EBCOT is used to transform code texture samples and residual image data. Resulting bitrate savings of up to approximately 17% over JPEG2000 for little change in perceptual quality have been shown.
Keywords :
data compression; image coding; image segmentation; image texture; wavelet transforms; EBCOT; JPEG2000; artefact detection algorithm; graphcut texture synthesis; patch based texture synthesis; unsupervised image compression; wavelet based image segmentation; Bit rate; Codecs; Decoding; Image analysis; Image coding; Image segmentation; Image texture analysis; Performance analysis; Signal synthesis; Transform coding; Image; compression; segmentation; synthesis; texture;
Conference_Titel :
Image Processing (ICIP), 2009 16th IEEE International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-5653-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2009.5414425
