Connect with us
background

News

Getting into Photogrammetry – debut blog from Alex Tasker

Published

on

Every cloud has a silver lining. In early March our skipper called off the weekend’s diving in Loch Fyne. A shame – but I made a couple of phone calls and seized the opportunity to attend IANTD’s first, two-day Photogrammetry course instead. I’ve been experimenting with this over the last year and increasingly feeling that I needed some help!

Tim Clements, who prepared the course, was there to lead it at Vobster Quay. Although there was quite a mix of students with a variety of camera gear, everyone was able to create 3D models from their own image data that they had captured during the underwater exercises which were part of the course. There was an emphasis on teamwork, safety and dive management, as well as on the photographic tasks, and all the students got useful feedback on their in-water abilities over the weekend.

I was paired with David, an experienced technical instructor. While this was my first visit to Vobster he must have dived there hundreds of times – he’s enthusiastic about the place and I must say I found it well set up and hassle-free. We gelled easily and I really enjoyed developing the use of “angel lighting” over the three dives we did together. On dive #2 I had an issue with my primary camera and was relieved to have the Paralenz on top of my rig – I was able to extract frames from the video to produce this model: https://skfb.ly/6HYJJ (that’s the same concrete block we were playing with topside the previous day!)

Back in the classroom, Simon Brown of Deep3D provided expert knowledge on photography and image processing. I was delighted to renew my acquaintance with Simon, who’s a particularly accomplished photogrammeter (if that’s the word) and has modelled numerous interesting underwater sites. I came away with pages of notes to digest on the photography itself and subsequent workflow.

We were also treated to some great 3D VR demos from Marcus Blatchford, illustrating some of the potential for our 3D models. He lent some much-needed computing power too, putting together this model from the image data I captured on dive #3: https://skfb.ly/6HTHX

We all deemed the course a real success; I’m certainly hoping to share some far more interesting models in the near future…

Alex was a hardy teenager when he first dived in the North Sea in a borrowed wetsuit but only really got into diving with his partner in 2009. They’ve ticked off a few bucket-list destinations but remain enthusiastic about all that UK diving has to offer. Alex only learned to use a camera properly since taking one underwater and now rarely dives without it. He’s recently expanded his interest in photographing shipwrecks into some experiments with photogrammetry, with ambitions to produce some archaeologically useful models.

Dive Training Blogs

Deptherapy returns to its Roots – Part 1

Published

on

Over the next seven days, join Richard Cullen from Deptherapy as we publish a Blog about the charity’s recent expedition to Roots Red Sea, El Quseir, Egypt.

Deptherapy made the very brave decision to book an expedition to our home in Egypt as soon as Roots Red Sea received their certificate from the Egyptian Authorities that the camp and dive centre was COVID secure. Roots is one of very few resorts to receive a certificate from the Egyptian Government.

We arrived in Roots the day after they re-opened.

Getting together an expedition was a major task. Very few Approved Medical Examiners’ of Divers or Dive Referees are conducting consultations at the moment. Availability of beneficiaries and the requirement to quarantine on return from Egypt affected the number of beneficiaries available.

There was also a requirement to pass a COVID PCR virus test within 72 hours of travelling.

We had decided on a small expedition and on the day of travel we had six flying to Egypt.  Unfortunately, Chris Middleton had to drop out the day before we travelled after emergency wisdom tooth surgery.

Our group comprised of Richard Cullen, Michael Hawley, Tom Oates, Tom Swarbrick, Keiron Bradbury and Corey Goodson.  Keiron was undertaking his RAID Master Rescue Course and, as it turned out, Corey was undertaking the RAID Open Water 20 course.

A deserted Gatwick Airport at 0900 on 10 October

Our outbound flight was before midday on Saturday 10 October and I must admit we were all shocked at how deserted was.  Checking in with easyJet took minutes and when we boarded the plane, we found it less than half full.

Corey is a paraplegic since a car accident two years ago while he was training prior to joining the Royal Anglian Regiment.  Corey has no sensation below the waist and is unable to use his legs.  The cabin crew on our flight were quite amazed to see the two Toms and Michael lift him from his wheelchair and place him in his seat for the flight.

Mask protocols were strictly observed by the team, the flight was uneventful, and the easyJet Cabin Crew superb. We also took a digital thermometer to check temperatures prior to flying.

Corey having a pre-flight temperature check

Hurghada Airport was very quiet and we moved through Immigration and collected our baggage in very quick time.

Two things to note:  If you are travelling to Hurghada you need to complete a COVID declaration for the Egyptian Authorities. If not, you have to fill out the rather lengthy form when you arrive.  You can undertake a COVID test on arrival at Hurghada Airport but the queues are long.  It costs much less than the tests we had done in the UK – BUT – you are required to be quarantined at your hotel until the test result comes through.  This means two days with no access to resort facilities.  If the test comes back as positive you have at least two weeks being confined to your room.

COVID guidelines

Transport to Roots was, as ever, on hand and we were soon at the camp and being briefed about the COVID arrangements.  A lot of work has been put in place to make Roots COVID compliant – and all at considerable expense.

None of the usual hugs with the Roots team and you have your temperature checked every morning and every time you return from the dive centre.  Your dive kit is sterilised every night ready for the next day’s diving.

Sterilised Dive Kit

We all felt very COVID secure.

Check back for tomorrow’s Blog and our first day diving…


Find out more about the work of Deptherapy and Deptherapy Education at www.deptherapy.co.uk

Continue Reading

News

And the winner of our TUSA Paragon S Mask competition is…

Published

on

We’d like to say a big thank you to all of you who entered our competition to win a TUSA Paragon S Mask from our good friends at CPS Partnership!

As usual, lots of you entered… but there can, of course, be only one winner!

And that winner is…

  • Lee Evans from the UK.

Congratulations Lee – your prize will be on its way to you soon!

Not a winner this time? Don’t worry – there are plenty of other competitions running on Scubaverse.com right now. To see what other awesome prizes you could be in with a chance of winning, click here!

Continue Reading

E-Newsletter Sign up!

Competitions

Expires on:

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

More Less

Instagram Feed

Facebook Feed

Facebook Pagelike Widget

Popular