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- Reginald L. Lagendijk, Jan Biemond, Dick E. Boekee
- IEEE Trans. Acoustics, Speech, and Signal…
- 1990

A maximum-likelihood approach to the blur identification problem is presented. The expectation-maximization algorithm is proposed to optimize the nonlinear likelihood function in an efficient way. In… (More)

- Reginald L. Lagendijk, Jan Biemond, Dick E. Boekee
- IEEE Trans. Acoustics, Speech, and Signal…
- 1988

Linear space-invariant image restoration algorithms often introduce ringing effects near sharp intensity transitions. It is shown that these artifacts are attributable to the regularization of the… (More)

Abstract In this paper, a pel-recursive Wiener-based displacement estimation algorithm is introduced. This algorithm is based on the assumption that both the so-called update and the linearization… (More)

- Peter H. Westerink, Dick E. Boekee, Jan Biemond, John W. Woods
- IEEE Trans. Communications
- 1988

A novel two-dimensional subband coding technique is presented that can be applied to images as well as speech. A frequency-band decomposition of the image is carried out by means of 2D separable… (More)

- Dick E. Boekee, Jan C. A. van der Lubbe
- Information and Control
- 1980

The R -norm information measure is discussed and its properties, as well as an axiomatic characterization, are given. The measure is extended to conditional and joint measures. Applications to coding… (More)

- Peter H. Westerink, Jan Biemond, Dick E. Boekee
- IEEE Trans. Signal Processing
- 1992

The authors analyze the coding errors due to quantization by explicitly incorporating a mathematical model for a Lloyd-Max quantizer into a quadrature mirror filter (QMF) splitting and reconstruction… (More)

- Cees J. A. Jansen, Wouter G. Franx, Dick E. Boekee
- IEEE Trans. Information Theory
- 1991

An algorithm is presented for the generation of binary DeBruijn sequences using feedback shift registers (FSRs). The algorithm is based on the principle of cycle joining, through which all the cycles… (More)

- Peter H. Westerink, J. Biemond, Dick E. Boekee
- ICASSP-88., International Conference on Acoustics…
- 1988

An optimal bit allocation algorithm is presented that is suitable for all practical situations. Each source to be coded is assumed to have its own set of admissible quantizers (which can be either… (More)

- Cees J. A. Jansen, Dick E. Boekee
- CRYPTO
- 1989

In this paper the problem of finding the absolutely shortest (possibly nonlinear) feedback shift register, which can generate a given sequence with characters from some arbitrary finite alphabet, is… (More)

Bounds and constructions for binary codes of length less than 24 and asymmetric distance less than 6

- Jos H. Weber, Cornelis de Vroedt, Dick E. Boekee
- IEEE Trans. Information Theory
- 1988

Upper bounds to the maximum number of codewords in a binary code of length n and asymmetric distance Delta are derived for some values of n and Delta . A method is given in which a code of length n-m… (More)