Hemlock Stone Scanned by Drone

New ‘UAV Scan’ of the Hemlock Stone and International Cooperation:

Preliminary results of the 3D laser scans of the Hemlock Stone at Stapleford have now been made public. The scans, using TLS, were conducted last year on behalf of the Project by ‘Nottingham Geospatial Institute’ based at The University of Nottingham. The ultimate aim of the scan has always been to produce a perfect 3D model of the Stone to be used for both academic research and educational purposes.

Interest in using the scans has already come from a number of groups including the University’s ‘Department of Geology’. Geologists from the University have expressed a wish to use the scan data to create an accurate physical model of the Stone using 3D laser printing technology.

However, although deemed a success, the TLS method employed in scanning the Stone involved the use of scaffolding to allow access to the top and upper parts. Inevitably, this method proved to leave gaps in the recorded data, meaning that there are a number of ‘holes’ (unscanned areas) in the model.

As a result, a new survey of the Stone has been carried out on Tuesday 27th October 2015. The new scans were carried out by a private company, ‘Ocuair’, using UAV (remote flying drones). The aim of the new work is to create a second full 3D model of the Stone.

Results will be compared for accuracy with the previous TLS scans. A combination of the data from both scans will produce the desired 3D model. The new scan will also allow an estimate of the feasibility of this approach/combination of approaches for surveying the other two sites, ‘The Druid Stone at Blidworth’ and ‘Bob’s Rock at Stapleford’.

Processing of the data from the new survey will be carried out by experts assisted by students, at the University of Nottingham’s China Campus, Ningbo, China. For the first time, dedicated time for the Project has been allocated for the work, which means that processing will be carried out in ‘real working time’.

About nottinghamhiddenhistoryteam

Originally formed in 1965 to try to save or at least record before destruction the cave sites continually discovered during the major redevelopment of the City that took place in Nottingham in the 1960′s. Almost every day new sites were unearthed and destroyed before anyone was notified; last thing they wanted was someone telling them to stop what they were doing; TIME is MONEY. The word HIDDEN in the Team’s title is because a lot of what was being invisibly lost in the redevelopment was our early history in the caves, they are under most, if now all, of Nottingham. In the 80’s and 90’s the Team conducted with the help of Dr Robert Morrell and Syd Henley, research and work on Nottingham’s history, folklore and local archaeology. The Team published quarterly magazines on their findings. The Team lapsed for a few years after the death of Paul Nix who was the team leader for thirty plus years. The Team has reformed and is now back working on Nottingham local history. On this blog you will find a series of history, folklore and archaeological related articles and information. Most of the material published will be specifically related to Nottingham/shire local history.
This entry was posted in Nottinghamshire Archaeology, Nottinghamshire History News and Events. Bookmark the permalink.

One Response to Hemlock Stone Scanned by Drone

  1. Waldo says:

    In the summer of 1943 or44 after climbing onto the top of the Hemlock Stone,I had to be
    “rescued” assisted down by the owner of a sweet shop located at the road junctions below.
    bringing up a fire watchers ladder up.

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