Title :
A new adaptive image post-treatment for deblocking and deringing based on Total Variation method
Author :
Do, Q.B. ; Beghdadi, A. ; Luong, M.
Author_Institution :
Inst. Galilee, Univ. Paris 13, Villetaneuse, France
Abstract :
A new HVS-inspired Total Variation (TV) method is proposed for jointly reducing blocking and ringing effects. The key idea is to adapt the TV problem to each relevant content of the image expressed through various maps. A perceptual segmentation method based on some characteristics of the Human Visual System (HVS) is used in order to extract theses maps. Then a perceptual adaptive TV-based method using the projected subgradient technique is used for deringing and deblocking JPEG-compressed image. The performance of the proposed method is evaluated objectively and subjectively in terms of blocking, ringing and blurring effects reduction, using the Kodak base images. The proposed method is also compared to the state of the art.
Keywords :
adaptive systems; image classification; image coding; image denoising; image enhancement; image restoration; image segmentation; visual perception; adaptive image post-treatment; blocking effects reduction; human visual system; image blurring effects reduction; jpeg-compressed image; kodak base image; projected subgradient technique; ringing effects reduction; total variation method; Image coding; Pixel; Blocking Artifact; HVS; Image Quality; JPEG; Restoration; Ringing Artifact; Total Variation;
Conference_Titel :
Information Sciences Signal Processing and their Applications (ISSPA), 2010 10th International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7165-2
DOI :
10.1109/ISSPA.2010.5605444
