Irwin Scollar

• University of Cologne

http://www.asprs.org/a/publications/pers/2016journals/PERS_Jan2016_12557/HTML/index.html

In order to discuss the origin of the Michelsberg culture, a question which has been the subject of much debate during the last five years, a closer definition of the culture is first necessary. This paper begins by reviewing the theories as to origins which have been offered during the last half century, a detailed description of the elements maki...

A complete presentation for a system of four square coils for the production of uniform fields is offered. The method of calculation is without restriction on geometry or turns- or current-ratio. A number of cases are worked out in detail. For these, the uniformity is calculated and contours of constant homogeneity are drawn. Square loops are only...

A simple bridge is described with which the complex susceptibility of a 100 g sample can be read directly to better than 1 × 10−6 e.m.u. g−1 for soil magnetism studies. By use of two integrated circuits and four transistors, transformers are entirely eliminated and a simple portable unit, with low power consumption, results.

Magnetic data from archaeological sites have traditionally been displayed by contour, isometric, and dot-density plotting, or by simulated gray-scale techniques using symbol overprinting. If true gray-scale methods using a modern video display, image processing techniques can be applied to enhance the geometric structures of archaeological interest...

Enhancement and noise cleaning algorithms based on local medians and interquartile distances are more effective than those using local means and standard deviations for the removal of spikelike noise, preserve edge sharpness better, and introduce fewer artifacts around high contrast edges present in the original data. They are usually not as fast a...

For more than half a century, air photographs made with hand held cameras have made major contributions to the discovery of sites in northern Europe. Most appear as discolorations in crops or soils. Photos taken over many years show different details which only a proper drawing on a large scale plan can reproduce. Two useful algorithms for the impr...

A description of a large computer system for transferring information from oblique aerial photographs of archaeological sites to maps is given. Techniques for improving the quality of the pictures and the visibility of the sites by computation are discussed. A method for the full geometric correction of an oblique set of images is mentioned. The pr...

The ancient monument protection service of the Rhineland has installed a system for transforming archaeological information in oblique aerial photos to 1:5000 base maps. A comprehensive software-hardware plan was implemented. Windowing, enhancement, pseudo-color density slicing and merging are employed. A simple map compression scheme which offers...

A computer model is described which generates artificial incidence matrices, with statistical properties similar to those of a Merovingian cemetery, but with a known chronological order.These matrices are used to test the effectiveness of various seriation procedures. Both permutation search and multi-dimensional scaling methods are investigated. T...

The vestiges of man's past that lie hidden in the ground represent an important part of our cultural heritage. The indiscriminate excavation and exploitation of such relics causes great concern to modern archaeologists and steps are now being taken to rescue the traces of the past and, wherever possible, to protect and conserve them. A valuable too...

Rapid survey of many minor archaeological sites gives a more balanced picture of the past in a given region. The development of accurate portable magnetometers now allows mapping of such buried sites in many types of soils. New differential instruments are more convenient, eliminating most external disturbances. The major remaining problem is the s...

Banked and ditched rectangular burial enclosures, called ‘Grabgärten’ (grave garden, literally) by the local folk, are found frequently in the southern Rhineland, with distribution centred on the south east Eifel, the Rhine-Moselle junction and the northern part of the Hunsriick mountains. All examples known to us up to the time of writing are plot...