Enhancement of JPEG-Compressed Images by Re-application of JPEG
Journal of VLSI Signal Processing Systems - Special issue on multimedia signal processing
Picture quality improvement in MPEG-4 video coding using simple adaptive filter
Proceedings of the 12th annual ACM international conference on Multimedia
Combined frequency and spatial domain algorithm for the removal of blocking artifacts
EURASIP Journal on Applied Signal Processing
R-D optimized tree-structured compression algorithms with discrete directional wavelet transform
Journal of Computational and Applied Mathematics
Models for patch-based image restoration
Journal on Image and Video Processing - Special issue on patches in vision
Advanced film grain noise extraction and synthesis for high-definition video coding
IEEE Transactions on Circuits and Systems for Video Technology
Discrete directional wavelet image coder based on fast R-D optimized quadtree decomposition
ICIC'07 Proceedings of the intelligent computing 3rd international conference on Advanced intelligent computing theories and applications
Block effect reduction by the 1-D gray polynomial interpolation
Digital Signal Processing
Image postprocessing by Non-local Kuan's filter
Journal of Visual Communication and Image Representation
Local compensating filter application for quality improvement of images compressed by JPEG
Pattern Recognition and Image Analysis
Learning-based image restoration for compressed images
Image Communication
Image de-quantizing via enforcing sparseness in overcomplete representations
ACIVS'05 Proceedings of the 7th international conference on Advanced Concepts for Intelligent Vision Systems
Effective blocking artifact reduction using classification of block boundary area
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
PCM'04 Proceedings of the 5th Pacific Rim conference on Advances in Multimedia Information Processing - Volume Part III
Content-adaptive deblocking for high efficiency video coding
Image Communication
Hybrid deblocking algorithm for block-based low bit rate coded images
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part I
Image deblocking via sparse representation
Image Communication
A generic post-deblocking filter for block based image compression algorithms
Image Communication
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This paper introduces a new approach to deblocking of JPEG compressed images using overcomplete wavelet representations. By exploiting cross-scale correlations among wavelet coefficients, edge information in the JPEG compressed images is extracted and protected, while blocky noise in the smooth background regions is smoothed out in the wavelet domain. Compared with the iterative methods reported in the literature, our simple wavelet-based method has much lower computational complexity, yet it is capable of achieving the same peak signal-to-noise ratio (PSNR) improvement as the best iterative method and giving visually very pleasing images as well