PROCESSING OF SCANNING ELECTRON MICROSCOPE IMAGERY
IN A DIGITAL STEREOPHOTOGRAMMETRIC SYSTEM (DSS)
Gerhard Koenig, Wolfgang Nickel, Juergen Storl
Technical University of Berlin
Department for Photogrammetry and Cartography
Federal Republic of Germany
Commission II, WG 11/2
ABSTRACT
The concept of a Digital Stereophotogrammetric System (DSS) was presented by
ALBERTZ/KOENIG at the ISPRS congress in Rio de Janeiro in 1984. Since that time
an experimental system has been set up which is suitable for automatic processing
of digital stereo images of limited size (512 x 512 pixels).
The system offers a variety of algorithms to improve the image quality as well as
several methods for system calibration. Resampling provides a y-parallax-free
model so that epipolar geometry can be assumed for stereo processing. The DSS can
be operated in two modes, either by automated correlation or by a human operator.
Correlation may be applied following a regular grid or along the points chosen by
means of an interest operator. Conventional plotting of stereoscopic imagery could
be achieved by use of a three-dimensional floating mark.
In this paper the first experiences in automatic processing of digitized Scanning
Electron Microscope images are discussed.
INTRODUCTION
At the ISPRS congress in Rio de Janeiro in 1984 ALBERTZ/KOENIG (2) reported on
the concept of a Digital Stereophotogrammetric System (DSS) at the Technical
University of Berlin. The aim of the DSS working group is to study the realization of
this digital conception by developing an experimental system based on a
commercially available image processing system. Up to now a system has been set
up which allows automatic processing of imagery not exceeding the capacity of the
image memories. The main hardware components of the system, now installed at the
Department for Photogrammetry and Cartography, are shown in fig. 1.
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