3D reconstruction reveals more details of Australia The most powerful supercomputer in the southern hemisphere is being used to create a 3D reconstruction of the two shipwrecks involved in Australia's greatest naval disaster.
After a short but fierce battle with the German raider Kormoran, HMAS Sydney sank in 1941 with the loss of all ray ban titanium 645 crewmen. Its final resting place became one of the nation's greatest wartime mysteries until 2008, when both wrecks were found about 200 kilometres off the West ray ban com Australian coast. Last year, researchers returned to the site to survey the wrecks. 75 years and I'm the only one alive that took part in that. Last surviving HMAS Sydney crewmember in Perth, Tom Fisher Research engineer Dr Andrew Woods said the team wanted to capture an experience that would otherwise remain out of reach to the public, 2.5 kilometres underwater. "We've collected around half a million photographs and around 300 hours of high definition video, much of that in 3D, so there is a wealth of material to work through," he said. He said the volume of data they collected presented obstacles for the team. "The process of generating 3D models from the photographs we've taken is very computationally intensive," ray ban aviator rb3025 he said. The Pawsey Supercomputing Centre's David Schibeci said it was fascinating to see the machines used for a historical purpose. "Virtual archaeology, which is something I hadn't really thought about before, is something that's quite interesting," he said. "You allow the ability for people to see or experience things they wouldn't otherwise be able to either for physical restrictions, political restrictions or any other kind of restriction, and so it quite an interesting use of Magnus. "The best thing from it is that it's very tactile, you can actually see what gets generated, whereas a lot of what Magnus actually produces is just ones and zeros which aren't particularly deals on ray ban sunglasses visually exciting." The researchers used the machines to run the photos and video through a piece of software that does pattern recognition and reconstructs the wreckage in 3D. It is hoped museum goers will be able to do virtual tours of the site within three years, but the last surviving crew member in Perth from the Sydney, Tom Fisher, who was transferred off the ship just weeks before its fatal final voyage, was given a sneak peak. He still remembers when a telegraph operator gave him the news. "One came to me and said, 'you shouldn't be wearing that cap band because your ship is lost, it's sunk' and I wouldn't believe him, especially because I'd written letters to the boys I left," he said. "I was shocked, I just couldn't believe it and off the coast of Western Australia and to be lost, there was no action there, no enemy action, we were going to the action." He described the experience of looking at the 3D reconstruction of the ship as "romantic". "It brings back the different actions we were in and associating with the men I lived with and fought with," he said. "75 years and I'm the only one alive that took part in that. "Sometimes my memory misses a bit but 75 years is a long time." Dr Woods said the researchers were considering other applications for the 3D reconstruction once it was complete.
"Potentially we can also print the 3D models so we're working towards the ability to create physical reproductions of artefacts from the sea floor," he said. "The site is protected by the Historic Shipwrecks Act and we are not allowed to remove any artefacts from the site, but these techniques allow us to reproduce items that look physically the same as the real thing so people will get the experience of seeing an item as if it's right in front of them.".
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