Advances in Imaging and Electron Physics, Volume 126

This volume of Advances is dominated by image processing and by a major contribution on microscopy, which is also the object of much of the image processing. The collection opens with a contribution by A. Arnéodo, N. Decoster, R. Kestener, and S. G. Roux on multifractal analysis, inspired by the need to find a consistent way of characterizing surface roughness.

The second contribution is by E. R. Davies, whose work on median and rank-order filters is well known in the field of image processing.

This brings us to a chapter by A. Diaspro and G. Chirico, who present a form of microscopy that is attracting great interest, namely, two-photon excitation microscopy.

The problem of phase calibration is particularly acute in multi-antenna radio imaging. A radically new approach based on graph-theoretic reasoning has been pioneered by A. Lannes, who explains the procedure in the fifth chapter, entitled "Phase closure imaging’.

Optical scanning holography was introduced by T.-C. Poon, author of the fourth chapter.

We close with a long contribution on nonlinear image processing in which the operations are performed on artificial neural networks. Here, D. de Ridder and colleagues from the Pattern Recognition Group in Delft University and the Institute of Information and Computing Sciences in Utrecht University first explain how image processing is performed by neural networks.