Automated verification of a topographic reference dataset

System design and prectical results

verfasst von

A. Busch, M. Gerke, D. Grünreich, Ch Heipke, C. E. Liedtke, S. Müller

Abstract

Quality of an official topographic reference dataset is important since it is the groundwork for many applications. Verification is classified as being part of quality management in this paper. Its main topic is the automated verification of a topographic reference dataset by means of orthoimages. The objects from the dataset are compared to an up-to-date orthoimage in order to obtain information on their quality. The main objects of interest are roads and built-up areas. As it is assumed that most of the objects in the database are correct, the strategy is to use the ATKIS objects stored in the DLMBasis as a starting point. Automatic image operators being able to detect the objects of interest use as much prior knowledge as possible from the dataset, such as contextual and geometrical information. By this means inconsistencies between the ATKIS objects and the image features can be detected. Positional accuracy of roads is checked as well. To organise the verification of the data independently from its capture, a semiautomatic working environment has been installed. In the subsequent interactive step the human operator just has to focus on the objects not being found in the automatic run. In this paper we will introduce the whole system, we then focus on the automatic components and their integration in a semi-automatic workflow. Therefore, we can give a detailed report on the system in its daily application as well as an evaluation of the results.

Organisationseinheit(en)

Institut für Photogrammetrie und Geoinformation
Institut für Informationsverarbeitung
Institut für Mechatronische Systeme

Externe Organisation(en)

Bundesamt für Kartographie und Geodäsie (BKG)

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives

Band

35

ISSN

1682-1750

Publikationsdatum

2004

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Information systems, Geografie, Planung und Entwicklung