This news release is available in German. <\/b> <\/i> <\/p>\n
Simulations of impressive landscapes and alien creatures have become commonplace, especially in fantasy and science fiction films. But simulations are also appearing in ever more medical and engineering applications. However, the road to a perfect illusion is complex and time-intensive. Nils Th\u00c3\u00bcrey, professor at the Technische Universit\u00c3\u00a4t M\u00c3\u00bcnchen and his colleagues have developed a methodology that could accelerate these calculations.<\/p>\n
The attack takes place at the climax of the blockbuster \u00e2\u20ac\u0153Avatar\u00e2\u20ac\u009d: Rockets slam into the Pandora inhabitants\u00e2\u20ac\u2122 homeland tree. Explosions, flames and thick clouds of smoke appear on the screen.<\/p>\n
To keep the audience pinned to the edge of their seats the images must be realistic. But, especially the simulation of physical processes is tough to implement. This includes the representation of liquids and gasses, which fall into the category of fluids. <\/p>\n
Rendering complex, turbulent movements is particularly difficult for programmers, explains Prof. Nils Th\u00c3\u00bcrey of the Department of Computer Science at TU M\u00c3\u00bcnchen. \u00e2\u20ac\u0153Three seconds of such a scene require hundreds of simulations, each of which often takes over ten hours of computing time.\u00e2\u20ac\u009d<\/p>\n
\t<\/strong><\/p>\n Mimicking nature<\/p>\n<\/p>\n Time that is available for large film productions. However, in computer games it becomes painfully obvious that the limits for realistic, fast and flexible simulation of fluids are quickly reached. Rapid simulation of things like air turbulence and blood is also essential in medicine and engineering.<\/p>\n To speed up the computational process, the scientists have gone back to the roots, so to speak. They analyze the behavior of real fluids and gasses. Obtaining data that are useful for simulation calculations from these observations required elaborate techniques in the past. In collaboration with international scientists, Th\u00c3\u00bcrey has now demonstrated that the data can be calculated from simple video clips. They are presenting their methodology in the journal ACM Transactions on Graphics<\/i>.<\/p>\n \t<\/strong><\/p>\n Autocompleting movements<\/p>\n<\/p>\n The complex turbulences in phenomena like smoke are barely or not at all discernable in video images. To fill this gap the scientists once again employ simulations. Based on experience and the laws of physics, the program automatically fills in the gaps. \u00e2\u20ac\u0153The brain also has this capacity,\u00e2\u20ac\u009d explains Th\u00c3\u00bcrey. \u00e2\u20ac\u0153In this way individual dots on a piece of paper suddenly appear as an image, even though they are not at all connected in reality.\u00e2\u20ac\u009d<\/p>\n Using this principle, the simulation software calculates the most probable course of movements, even when this is not distinctly ascertainable from the data.<\/p>\n \t<\/strong><\/p>\n Medical diagnoses and spectacular effects<\/p>\n<\/p>\n The idea is now to optimize this methodology for various applications. Simulations of blood flow in combination with computer tomography can help assess the acuteness of an aneurism. The simulation of fluids is also essential in the design of airfoils and other aerodynamic bodies. And, of course, the new programs will also improve computer games \u00e2\u20ac\u201c and facilitate spectacular explosions on the screen.<\/p>\n ###<\/p>\n Photos and videomaterial: http:\/\/go.tum.de\/869987\n<\/p>\n Interview with Prof. Nils Th\u00c3\u00bcrey (Youtube): http:\/\/youtu.be\/MMEOMRJEAV4<\/p>\n Publication: James Gregson, Ivo Ihrke, Nils Thuerey, Wolfgang Heidreich: From Capture to Simulation \u00e2\u20ac\u201c Connecting Forward and Inverse Problems in Fluids, ACM Transactions on Graphics<\/em> (TOG) DOI: 10.1145\/2601097.2601147 <\/p>\n Contact:<\/b>\n<\/p>\n Prof. Dr. Nils Th\u00c3\u00bcrey<\/p>\n Technische Universit\u00c3\u00a4t M\u00c3\u00bcnchen<\/p>\n Fakult\u00c3\u00a4t f\u00c3\u00bcr Informatik<\/p>\n Tel: +49 89 289 19484<\/p>\n nils.thuerey@tum.de<\/p>\n","protected":false},"excerpt":{"rendered":" This news release is available in German. Simulations of impressive landscapes and alien creatures have become commonplace, especially in fantasy and science fiction films. But simulations are also appearing in ever more medical and engineering applications. However, the road to a perfect illusion is complex and time-intensive. Nils Th\u00c3\u00bcrey, professor at the Technische Universit\u00c3\u00a4t M\u00c3\u00bcnchen […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-6430","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/posts\/6430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/comments?post=6430"}],"version-history":[{"count":0,"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/posts\/6430\/revisions"}],"wp:attachment":[{"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/media?parent=6430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/categories?post=6430"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/healthmedicinet.com\/news\/wp-json\/wp\/v2\/tags?post=6430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}