A Fast Scheme for Multiscale Signal Denoising
ICIAR '08 Proceedings of the 5th international conference on Image Analysis and Recognition
Image denoising in steerable pyramid domain based on a local Laplace prior
Pattern Recognition
Clipped noisy images: Heteroskedastic modeling and practical denoising
Signal Processing
Short Communication: Efficient quadtree based block-shift filtering for deblocking and deringing
Journal of Visual Communication and Image Representation
Patch-based video processing: a variational Bayesian approach
IEEE Transactions on Circuits and Systems for Video Technology
A context quantization approach to universal denoising
IEEE Transactions on Signal Processing
On the Apparent Transparency of a Motion Blurred Object
International Journal of Computer Vision
From Local Kernel to Nonlocal Multiple-Model Image Denoising
International Journal of Computer Vision
Iterative weighted maximum likelihood denoising with probabilistic patch-based weights
IEEE Transactions on Image Processing
MDL context modeling of images with application to denoising
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
De-speckling of SAR images by directional smoothing of wavelet coefficients and de-blurring
SIP'10 Proceedings of the 9th WSEAS international conference on Signal processing
Adaptive 2-D wavelet transform based on the lifting scheme with preserved vanishing moments
IEEE Transactions on Image Processing
De-speckling of SAR images by directional smoothing of wavelet coefficients and de-blurring
ISCGAV'10 Proceedings of the 10th WSEAS international conference on Signal processing, computational geometry and artificial vision
Remove speckle of SAR images by directional smoothing of wavelet coefficients
ISCGAV'10 Proceedings of the 10th WSEAS international conference on Signal processing, computational geometry and artificial vision
Consistent image decoding from multiple lossy versions
Proceedings of the 2010 ACM workshop on Advanced video streaming techniques for peer-to-peer networks and social networking
Fast query for exemplar-based image completion
IEEE Transactions on Image Processing
Image postprocessing by Non-local Kuan's filter
Journal of Visual Communication and Image Representation
Stochastic image denoising based on Markov-chain Monte Carlo sampling
Signal Processing
Image denoising with anisotropic bivariate shrinkage
Signal Processing
Total Variation as a Local Filter
SIAM Journal on Imaging Sciences
An MMSE approach to nonlocal image denoising: Theory and practical implementation
Journal of Visual Communication and Image Representation
A multiresolution framework for local similarity based image denoising
Pattern Recognition
Non-local Methods with Shape-Adaptive Patches (NLM-SAP)
Journal of Mathematical Imaging and Vision
Image deblocking via sparse representation
Image Communication
Time-Scale Similarities for Robust Image De-noising
Journal of Mathematical Imaging and Vision
Monte Carlo cluster refinement for noise robust image segmentation
Journal of Visual Communication and Image Representation
Loss-specific training of non-parametric image restoration models: a new state of the art
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part VII
Nonlocal spectral prior model for low-level vision
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part III
A New Nonlocal H1 Model for Image Denoising
Journal of Mathematical Imaging and Vision
Perceptually optimized blind repair of natural images
Image Communication
Joint image denoising using adaptive principal component analysis and self-similarity
Information Sciences: an International Journal
Image-pair-based deblurring with spatially varying norms and noisy image updating
Journal of Visual Communication and Image Representation
Face recognition using scale-adaptive directional and textural features
Pattern Recognition
Blind image deconvolution using a banded matrix method
Numerical Algorithms
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The shape-adaptive discrete cosine transform (SA-DCT) transform can be computed on a support of arbitrary shape, but retains a computational complexity comparable to that of the usual separable block-DCT (B-DCT). Despite the near-optimal decorrelation and energy compaction properties, application of the SA-DCT has been rather limited, targeted nearly exclusively to video compression. In this paper, we present a novel approach to image filtering based on the SA-DCT. We use the SA-DCT in conjunction with the Anisotropic Local Polynomial Approximation-Intersection of Confidence Intervals technique, which defines the shape of the transform's support in a pointwise adaptive manner. The thresholded or attenuated SA-DCT coefficients are used to reconstruct a local estimate of the signal within the adaptive-shape support. Since supports corresponding to different points are in general overlapping, the local estimates are averaged together using adaptive weights that depend on the region's statistics. This approach can be used for various image-processing tasks. In this paper, we consider, in particular, image denoising and image deblocking and deringing from block-DCT compression. A special structural constraint in luminance-chrominance space is also proposed to enable an accurate filtering of color images. Simulation experiments show a state-of-the-art quality of the final estimate, both in terms of objective criteria and visual appearance. Thanks to the adaptive support, reconstructed edges are clean, and no unpleasant ringing artifacts are introduced by the fitted transform