The Model Digital Elevation Models (DEM) are one of the outputs photogrammetry delivers. They are (almost) free, as long as you have GPS data (Latitude, longitude and depth) for known points then orientating and generating a view of the undulations of the scan is straightforward. The SS Gwladmena was scanned back in August 2016. At Read more about Digital Elevation Models Revisited[…]
Spring 2016 saw Deep3D collaborating and contributing to a ground-breaking project – the Coronation Wreck Virtual Dive Trail. The association with the Coronation site and the licensees was long-standing, with both traditional photography and 3D photogrammetry work already completed so when it came to commissioning the work MAST turned to Deep3D. However, the whole site Read more about Deep3D and the Coronation Virtual Trail[…]
The one nagging thought while scanning is “Did I get enough overlap?”. No overlap of points and the scan data just won’t build into a single, seamless model. For anyone scanning topside data the opportunity to reshoot the missing images can be straightforward, but with shipwrecks its not so easy. The distances involved, boat availability Read more about Mixing Datasets – Photogrammetry and Multibeam[…]
Yes, you read the title correctly! Word of what Deep3D was up to in Scapa Flow this November reached the editors at BBC Orkney. Intrigued to know more, they sent along a reporter and recorded a short interview with Simon. The interview begins at 12 minutes 50 into the broadcast:- Photogrammetry on the BBC. The Read more about Underwater Photogrammetry…on the radio[…]
Next year sees the start of a little project run by The Shipwreck Project to find the missing pieces in a great story involving a Second World War single seat fighter that crashed in Weymouth Bay. We know the date and the fate of the pilot – he bailed out and was rescued – but we do Read more about Digital Elevation Models[…]
The orthophotos generated from the 3D model can be very detailed indeed, but they can reveal flaws if things move during scanning. With humans, this causes a bit of a problem. Here’s an example of the E49 and model Rob:- This print is A1 in size and Rob appears alongside the submarine, adding great Read more about Scanning Humans and Other Details[…]
Last month’s visit to Shetland was very productive. A week a way in cold but clear water has yielded some very pleasing models:- https://sketchfab.com/simonbrown/collections/shetland And from these wrecks, it is now possible to create some very large but highly detailed 2D panoramic views of a wreck, big enough to see from bow to stern and Read more about Panoramic Wreck Prints[…]
A combination of depth (38m) and size (67m x 9m) prevented the SS Gwladmena being scanned on a single dive, but by taking two sets of images from different dives the entire ship can be built. Dive one concentrated on the plan view of the decks. Dive two concentrated on the surrounding seabed and hull. Read more about Updated, refined & revised – SS Gwladmena[…]
Now lying in 30m of water, this small trawler sunk just over 17 years ago and now lies on a seabed of near-white sand. Thankfully no lives were lost during the sinking, and today the wreck makes a great 3D subject.
With the summer here, Deep3D has been busy. One very large and collaborative project will be published later this year but we have managed to slip away and scan some wrecks in Shetland. Built in 1878, the SS Gwladmena sank in 1918 and now lies in 38m of water close to Lerwick. At 70m long Read more about SS Gwladmena – Shetland Islands[…]