HS Chang, K Kang - IEEE Transactions on image processing, 2005 - ieeexplore.ieee.org
Detecting and classifying edge components in images find a wide range of applications from perceptually improved coding schemes to content-based searches. A fast and systematic …
Typically data acquired through imaging techniques such as functional magnetic resonance imaging (fMRI), structural MRI (sMRI), and electroencephalography (EEG) are analyzed …
DC Park, YJ Woo - IEEE transactions on neural networks, 2001 - ieeexplore.ieee.org
An edge preserving image compression algorithm based on an unsupervised competitive neural network is proposed. The proposed neural network, the called weighted centroid …
JW Kim, SU Lee - IEEE Transactions on circuits and systems …, 1992 - ieeexplore.ieee.org
An image-coding technique, in which the discrete cosine transform (DCT) is combined with a classified vector quantization (CVQ), is presented. A DCT-transformed input block is …
JZC Lai, JY Yen - IEEE Transactions on Image Processing, 1998 - ieeexplore.ieee.org
This correspondence extends and modifies classified vector quantization (CVQ) to solve the problem of inverse halftoning. The proposed process consists of two phases: the encoding …
AH Abouali - Ain Shams Engineering Journal, 2015 - Elsevier
In this paper, a vector quantization algorithm is proposed for image compression. The proposed algorithm composed of three phases, initialization, iterative and finalization. The …
JW Soh, HS Lee, NI Cho - 2017 Asia-Pacific Signal and …, 2017 - ieeexplore.ieee.org
The Karhunen-Loève Transform (KLT) is the optimal transform for a block of signal in terms of decorrelation and energy compaction performances. However, it is not used in practice …
SA Mohamed, MM Fahmy - IEEE transactions on …, 1995 - ieeexplore.ieee.org
Vector quantization (VQ) and block truncation coding (BTC) are successful image compression techniques. However, a reproduced image using VQ or BTC suffers from edge …