Enhancement of JPEG-Compressed Images by Re-application of JPEG
Journal of VLSI Signal Processing Systems - Special issue on multimedia signal processing
Adapted Total Variation for Artifact Free Decompression of JPEG Images
Journal of Mathematical Imaging and Vision
Pattern Recognition Letters
A neighborhood evaluated adaptive vector filter for suppression of impulse noise in color images
Real-Time Imaging - Special issue on multi-dimensional image processing
Super-resolution without explicit subpixel motion estimation
IEEE Transactions on Image Processing
Probabilistic PCA self-organizing maps
IEEE Transactions on Neural Networks
Multivariate Student-t self-organizing maps
Neural Networks
Restoration of images corrupted by Gaussian and uniform impulsive noise
Pattern Recognition
Probabilistic self-organizing maps for continuous data
IEEE Transactions on Neural Networks
IEEE Transactions on Multimedia
Adaptive Deblocking Technique for Mobile Video
IEEE Transactions on Consumer Electronics
Adaptive deblocking method using a transform table of different dimension DCT
IEEE Transactions on Consumer Electronics
Adaptive blocking artifact reduction using wavelet-based block analysis
IEEE Transactions on Consumer Electronics
Theory of projection onto the narrow quantization constraint set and its application
IEEE Transactions on Image Processing
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
Color Demosaicing Using Variance of Color Differences
IEEE Transactions on Image Processing
Kernel Regression for Image Processing and Reconstruction
IEEE Transactions on Image Processing
A Low-Complexity Joint Color Demosaicking and Zooming Algorithm for Digital Camera
IEEE Transactions on Image Processing
Postprocessing of Low Bit-Rate Block DCT Coded Images Based on a Fields of Experts Prior
IEEE Transactions on Image Processing
Improved image decompression for reduced transform coding artifacts
IEEE Transactions on Circuits and Systems for Video Technology
A deblocking method for BDCT compressed images based on adaptive projections
IEEE Transactions on Circuits and Systems for Video Technology
Fast Edge-Preserved Postprocessing for Compressed Images
IEEE Transactions on Circuits and Systems for Video Technology
Self-organizing mixture networks for probability density estimation
IEEE Transactions on Neural Networks
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Perhaps the most widely used format for lossy compression of still images is JPEG (Joint Photographic Experts Group). In this image format the quality loss and an important part of the file size reduction come from the application of the Discrete Cosine Transform (DCT), and the subsequent quantization of its coefficients. These processes lead to noticeable compression artifacts. In this paper we present an intelligent system which is capable of analyzing a compressed JPEG image by combining the knowledge extracted from the image domain and the transformed domain, so that the results are restored versions that are more similar to both the original from the qualitative and quantitative points of view. It builds an approximation of the original image by kernel regression, which is controlled by self-organizing neural maps, so that the resulting image does not suffer from oversmoothing.