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Analysis of the accuracy of shoreline mapping in inland navigational charts (Inland ENC) using photogrammetric and sonar images

Łubczonek Jacek, Łącka Małgorzata, Zaniewicz Grzegorz

Zeszyty Naukowe Akademii Morskiej w Szczecinie

2019

nr 58 (130)

45--54

Shoreline mapping is one of the key stages in navigational charting. In terms of navigation, the shoreline marks the boundary of a river, which is often equivalent to the navigable water area. In cartographic terms, it is an important topological element between different objects that are adjacent to it. Currently, topographic objects are often mapped using photogrammetric materials obtained from various altitudes – satellite, airborne or low, which is associated with the use of an airborne UAV. Depending on the type of materials, the shoreline can be obtained in vector form with differing situational accuracy and differing degree of detail. In addition to the standard methods of processing vector data, the research in this paper also included the use of sonar images, enabling the detection of the shoreline with the use of a surveying hydrographic unit. On the basis of the collected photogrammetric and sonar images of different spatial resolution, an analysis of the accuracy of shoreline mapping was performed in terms of the situational accuracy and the level of detail in its representation. The results of the research provided the basis for the determination of dedicated remote sensing materials enabling the development of maps for inland navigation.

Risk based model of information optimization in maritime electronic chart application

Gucma M.

Journal of Polish Safety and Reliability Association

2008

Vol. 1

143--147

The paper is concerned on a statistical approach to the solution of practically very important problem, of risk based criteria’s, in field of testing and development of a sea electronic chart. Criteria estimation in human - computer systems is difficult, and not in every case might be satisfactory. In many cases wrong criteria estimation might occur in inapplicability of whole system. In paper author copes with universal model of information optimization for navigation chart system using example of pilot navigation system.