Photogrammetric Stereocompilation Supported by Interactive Computer Graphics (Abstract)

Abstract

A single-user computer graphics supported stereophotogrammetric digitizing system is presented in its intermediate experimental state. Essential system component is a Tektronix 4054 graphics desk-top computer connected to a stereo-digitizer; it enables simple and functional compilation and restitution of aerial photographs even in its minimal configuration. Distinguishing between the three phases of "mensuration", "model", and "block", some general reflections on digital stereocompilation are being made, and the BASIC application software for the mensuration phase is described. Most important system properties such as ergonomic interaction, feature classification, object mode, user definable keys, data management and data editing are discussed in some detail. Possible yet necessary expansions of the experimental set-up for real practical work are given as well.