DEMS – Another View

Slope Analysis As we have discussed before Digital Elevation Models help us understand subtle changes in depth (or height) of the subject. We also think they are art in their own right. Tucked away in the 1.4 release of Agisoft Photoscan Pro is a preference that adds slope analysis. The colours applied to the model Read more about DEMS – Another View[…]

Media Work – Looking for Atlantis

Atlantis at Alikanas Late last year Simon found himself on the island of Zakinthos, Greece, in the company of a film crew. The job was to scan the seabed of Alikanas Bay and capture what locals believe to be the remains of a long-lost town. The job went very well indeed. The weather and visibility Read more about Media Work – Looking for Atlantis[…]

Rolling Shutters and Boring Models

The Most Boring Model on the Internet Its never a good idea to test software capabilities when the pressure is on to deliver a job. The manual may well claim everything works out of the box but its a high risk strategy. Which is how we came to find ourselves standing in a field flying Read more about Rolling Shutters and Boring Models[…]

Ortho Photo – The Gift That Keeps Giving

The Thunderbolt A few weeks ago Deeper Dorset divers paid a visit to the P47-D crash site in Weymouth Bay. We know a fair bit about this crash site but a dive after the winter storms usually reveals something new. Conditions were not great and visibility limited but Hugh did come back with a photo of a Read more about Ortho Photo – The Gift That Keeps Giving[…]

Let There Be Light Part II

Orcalight A few weeks ago we shared the news that the Orcalight Seawolf had been upgraded. The original single battery canister and light head was returned to Shane at Orcalight for modifications. A second light head and improved batteries were in the upgrade and the intention was to improve the coverage of light when working with a Read more about Let There Be Light Part II[…]

Photogrammetry Training

Time to Train For those who want to know more, Simon Brown of Deep3D is holding a photogrammetry training course. Organised in conjunction with Tim Clements and Vobster Quay Inland Diving the three day course will run from the 11th to the 13th of May. Three days discovering the basics of photogrammetry, discussion about cameras and Read more about Photogrammetry Training[…]

Photoscan 1.4 – Importing Video

Freeze Frame Until now converting video into still photographs required a piece of third party software. Since the release of Agisoft Photoscan 1.4 the ability to import video directly has been added. It was time to investigate and see what this function offered us. With enough light to warm the ocean and a housed digital SLR camera Read more about Photoscan 1.4 – Importing Video[…]

Drain the Pirate City

Pirate Port in the Press Published in this month’s BSAC SCUBA magazine is a four page account of how Jamaica’s Port Royal was scanned on behalf of MSP/National Geographic/Discovery Canada for the production of Drain the Sunken Pirate City. The programme now being broadcast on National Geographic Channel here in the UK. Port Royal is Read more about Drain the Pirate City[…]

Let There Be Light

In the Beginning… In our temperate northern waters there is a lack of light. The very thing that underwater photogrammetry needs is often in short supply and light is like a drug. You always want more. Underwater photographers get around the limits of natural light with flash guns or video lights and these generally work Read more about Let There Be Light[…]