Advances in Imaging and Electron Physics, Volume 125

The contributions to this latest volume of the Advances extend over a wide range of themes: subband signal processing, electron microscopy and diffraction, mathematical morphology, fast scanning tunneling microscopy and coding theory.

The volume opens with a presentation by M. Barnabei and L. B. Montefusco of the algebraic theory, largely initiated and developed by them, that makes it possible to study filter banks systematically from the time-domain viewpoint.

In the second chapter, I. P. Jones describes how the locations of chemical sites in ordered compounds are determined by channeling-enhanced microanalysis, the technique that is now universally referred to as ALCHEMI.

Mathematical morphology appears frequently in these pages but the aspect of this subject considered by K. Michielsen, H. de Raedt, and J. Th. M. de Hosson has not been discussed here before.

In the fourth chapter, by G. M. Steeves and M. R. Freeman, we return to microscopy: a form of scanning probe microscopy that allows extremely rapid changes to be followed.

Digitized images are large, commonly redundant data-sets and they frequently have to be transmitted along noisy channels. Somewhat surprisingly, despite all the effort that has been put into concatenated and Turbo codes, it is the low-density parity-check codes that have reached the best performance and these are the subject of the chapter by R. Vicente, D. Saad and Y. Kabashima.

This brings us to the final chapter, in which S. Zaefferer discusses automation of the interpretation of electron diffraction patterns.