Image deblocking using dual adaptive FIR Wiener filter in the DCT transform domain
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Manipulation and compositing of MC-DCT compressed video
IEEE Journal on Selected Areas in Communications
Postprocessing of Low Bit-Rate Block DCT Coded Images Based on a Fields of Experts Prior
IEEE Transactions on Image Processing
Projection-based spatially adaptive reconstruction of block-transform compressed images
IEEE Transactions on Image Processing
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive postfiltering of transform coefficients for the reduction of blocking artifacts
IEEE Transactions on Circuits and Systems for Video Technology
Blocking artifacts suppression in block-coded images using overcomplete wavelet representation
IEEE Transactions on Circuits and Systems for Video Technology
DCT quantization noise in compressed images
IEEE Transactions on Circuits and Systems for Video Technology
Block artifact reduction using a transform-domain Markov random field model
IEEE Transactions on Circuits and Systems for Video Technology
Perceptually optimized blind repair of natural images
Image Communication
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Blocking artifacts exist in the block-based discrete cosine transform (DCT) compressed images and video sequences in low bit rate compression. Based on the minimum mean-square-error (MMSE) criterion, we have developed a dual adaptive FIR Wiener (DAW) filter previously. In this paper, the DAW filter is then extended to form the Overcomplete Dual Adaptive Wiener (OCDAW) filter by applying to the overcomplete DCT coefficients. Experimental results show that OCDAW filter, in most cases, outperforms state-of-the-art image deblocking algorithms in both fidelity and image visual quality.