English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The maintenance and preservation of heritage structures is of particular importance from a historical, cultural, socio-political, economic and not least architectural and aesthetic point of view. An efficient maintenance scheme requires periodical inspections associated with a reliable condition determination of the structure. Especially the process of data acquisition is a time consuming, labour intensive and technically complex task. This paper presents a vision-based inspection and monitoring approach for heritage structures based on high quality aerial photos taken by remote controlled Unmanned Aerial Systems (UAS). In terms of quality, time and investment this approach provides an important contribution to data acquisition processes and monitoring strategies and will provide an increased efficiency in preserving architectural heritages. UAS’s equipped with high quality photo or video cameras open up the possibility of simplifying and accelerating data acquisition and monitoring tasks. The extreme flight stability of the UAS and the fully compensated camera provide high quality data which are essential for reliable condition monitoring and inspection results. This also offers the possibility of highly accurate survey and geo-referenced 3Dmodelling of structures in relation to direct referenced visualisation of detected damages. The paper shows three case studies. Furthermore, it presents a combination of conventional inspection measurements with modern www.witpress.com, ISSN 1743-3509 (on-line) WIT Transactions on The Built Environment, Vol 153, © 2015 WIT Press Structural Studies, Repairs and Maintenance of Heritage Architecture XIV 621 doi:10.2495/STR150521 photogrammetric and computer vision methods for an automatic post-flight georeferenced 3D reconstruction based on aerial images.

Vision-based monitoring of heritage monuments: Unmanned Aerial Systems (UAS) for detailed inspection and high-accuracy survey of structures