A new approach to reduce the 'blocking effect' of transform coding (image coding)
- 1 January 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communications
- Vol. 41 (2), 299-302
- https://doi.org/10.1109/26.216502
Abstract
A combined-transform coding (CTC) scheme to reduce the blocking effect of conventional block transform coding and hence to improve the subjective performance is presented. The scheme is described, and its information-theoretic properties are discussed. Computer simulation results for a chest X-ray image are presented. The CTC scheme, the JPEG baseline scheme, and the conventional discrete Walsh-Hadamard transform (DWHT) are compared to demonstrate the performance improvement for the CTC scheme. The advantages of the CTC scheme include no ringing effect as there is no error propagation across the boundary, no additional computation, and distortion always held within a certain levelKeywords
This publication has 10 references indexed in Scilit:
- Reduction of blocking effect in image codingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Short-space Fourier transform image processingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A methodology for modeling the distributions of medical images and their stochastic propertiesIEEE Transactions on Medical Imaging, 1990
- Encoding of images based on a lapped orthogonal transformIEEE Transactions on Communications, 1989
- Recursive Block Coding--A New Approach to Transform CodingIEEE Transactions on Communications, 1986
- Transform coding of images using interleaved blocksIEE Proceedings F Communications, Radar and Signal Processing, 1984
- Image data compression: A reviewProceedings of the IEEE, 1981
- Δ-entropy and rate distortion bounds for generalised Gaussian information sources and their applications to image signalsElectronics Letters, 1980
- Computation of channel capacity and rate-distortion functionsIEEE Transactions on Information Theory, 1972
- A Mathematical Theory of CommunicationBell System Technical Journal, 1948