Several years of experience in heritage documentation have given a background
to develop methods of digital photogrammetry and mapping. The outcome is the development
of a mapping software over a period of 20 years.Main features of the software are
image rectification, vector based mapping, quantity survey and data analysis. In
Germany, it is mainly used in the field of stone conservation. Small projects can be
processed as a single mapping project, whilst complex projects like a cathedral can be
organised as a hierarchical project, with several mapping projects for individual object
parts. Each mapped element can be connected with additional attributes. This allows
visual analysis of mapping activities, quantities and attributes – like in a geographical
information system (GIS) for conservators. Tools and procedures for efficient mapping
are developed in close cooperation with conservators from different fields. It is shown
how large stone objects can be managed efficiently with an example project from the field
of natural stone. This applies to the overall data acquisition and data evaluation for
condition analysis, conservation planning, accounting documentation and monitoring.
Due to the advances in the fields 3D laser scanning and digital photogrammetry
within the past 5 years the R&D project „PROQUATO“ (2016 – 2018) was
initiated by fokus GmbH Leipzig with the institute for photogrammetry and remote
sensing of TU Dresden and Scan 3D GmbH, Berlin. Project results for efficient data
processing and functions for 3D mapping will be presented. Current developments deal with
the fast processing of point clouds scanned by laser scanner for the use as reference for
image rectification, deformation analysis and creation of section lines.
Abstract
Several years of experience in heritage documentation have given a background
to develop methods of digital photogrammetry and mapping. The outcome is the development
of a mapping software over a period of 20 years.Main features of the software are
image rectification, [...]