On the accuracy of 2-D digital filter realizations using logarithmic number systems
- 24 March 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 7, 48-51
- https://doi.org/10.1109/icassp.1982.1171386
Abstract
This paper deals with the approximation of 2-D digital filters implemented with logarithmic number systems. Such systems guarantee accuracy and speed, then they are attractive for real-time digital processing of images. The limits on the maximum useful word length are discussed, and an optimization procedure for the base of the logarithmic number system is proposed. The possibility of designing efficient 2-D digital filters for logarithmic number systems is demonstrated with several examples.Keywords
This publication has 6 references indexed in Scilit:
- 2-D digital filters using logarithmic number systemsElectronics Letters, 1981
- Multivariate polynomial positivity invariance under coefficient perturbationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1980
- Error analysis of recursive digital filters implemented with logarithmic number systemsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1980
- Two-dimensional recursive filter design--A spectral factorization approachIEEE Transactions on Acoustics, Speech, and Signal Processing, 1980
- The Focus Number SystemIEEE Transactions on Computers, 1977
- An lpdesign technique for two-dimensional digital recursive filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1974