Project Thistlegorm – The Processing Begins

The Project The SS Thistlegorm is rated a world class wreck dive. But only a tiny fraction of the world can don SCUBA and pay the wreck a visit, so the Universities of Nottingham, Ain Shams and Alexandria have collaborated to digitally record the heritage beneath the waves. Funding for this work has been provided by Read more about Project Thistlegorm – The Processing Begins[…]

The Art of DEM

The Art of DEM For some reason, I am drawn to Digital Elevation Models (DEM). They express so much information in such an elegant way. Their creation does require embedding GPS data, but thats almost a given these days as its a straightforward exercise pulling points out of sonar. In simple terms, a DEM is Read more about The Art of DEM[…]

Geo Referencing the UB 116

Earlier this week Kevin Heath of Sula Diving kindly towed his sides can sonar fish past the remains of the UB 116, generating a very clear image of the wreck site: Relating the Model to the Planet With the GPS positions recorded in the sonar we can now extract a few key points and add them to Read more about Geo Referencing the UB 116[…]

Decimating the Model – the V83

Scapa Processing Continues What seems like an age ago we were in Scapa Flow diving from the good ship MV Valkyrie. Some of the models were completed on board – like the discovery of a German Pinnace whereas others such as the UB 116 took a little longer. Near the end of the list of wrecks to process is the Read more about Decimating the Model – the V83[…]

Tidal Streams and Photogrammetry

A New Target Last week The Shipwreck Project surveyed and confirmed another sonar target. Before diving and upholding a long-held Project ritual, the lump was christened “The Block Of Cheese” on account of what it looked like on the sonar. Here’s a screen grab of what we were looking at: The Scan The target was quickly confirmed Read more about Tidal Streams and Photogrammetry[…]

Photogrammetry – Managing the Data

How much? Photogrammetry produces a lot of data. Here’s a walk-through of the kind of volume needed to create the High Seas Fleet pinnace found last month in Scapa Flow:- Volume of data by event From beginning to end we have:- Dive – 598 RAW files = 15.32Gb Initial processing – 598 derived JPEG images Read more about Photogrammetry – Managing the Data[…]

Changing Wrecks – Which Version?

Things Change Shipwrecks are not static, unchanging places. As age, tide and corrosion take their toll things settle into the seabed. Prior to photography, and more recently photogrammetry, the changes would go unrecorded. But as those of us who dive the SMS Karlsruhe regularly, it is no longer possible to recreate this image as shot Read more about Changing Wrecks – Which Version?[…]

A New Wreck Discovery!

Deep3D are long-time supporters of Weymouth-based The Shipwreck Project, a group dedicated to finding and researching shipwrecks in the English Channel. Over the years of involvement Deep3D have dived quite a few previously unseen targets, some that have turned out to be junk, and some that have been a historical jackpot. Target diving and site recording Read more about A New Wreck Discovery![…]

NDAC Orthophoto

Over the last week the NDAC model grew a little bit, with the BaE 146 aircraft joining the overall site (Thanks Marcus!). An updated model will be published soon. GPS Data Other progress included adding GPS data, using Google Earth to glean the latitude and longitude of the various buoys that mark the attractions. Depth was taken Read more about NDAC Orthophoto[…]

The NDAC Diver Attractions Model

Regular visitors to the News section may remember that Simon Brown (Deep3D) and Marcus Blatchford had a very informal project running to map as much of the National Diving & Activity Centre as they could. If you want to read more about how the model was created, do please read on. But if the model is all you Read more about The NDAC Diver Attractions Model[…]