Software That Models Motion Travels To Museum
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- Опубликовано: 17 окт 2024
- In a new exhibit at The Leonardo, a science and technology museum in Salt Lake City, a team of Stanford engineers is demonstrating an open source software package called OpenSim that accurately models human movement. OpenSim is free and in use across the world helping scientists understand the complex forces of movement to improve diagnosis of physical disabilities and prevent harmful wear and tear.
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@twocsies Just to clarify, most (but not all) simulations generated with OpenSim use the same marker based tracking you mention to generate the motion. The big difference between this and computer graphics animations is that with OpenSim uses estimations of realistic muscle and contact forces to generate the motion; in other words using real physics. Most likely Avatar used animated body parts, with no real mass properties or muscles, to track the measured markers.
Avatar actually used a software developed by Weta called Tissue to model the muscles and other tissues using finite element analysis but blendshapes for the faces.
The Avatar movements are based entirely on how people move, since (nearly) all Avatar character movements are made with mocap suits.
looks great, I have two questions.
1. How do I plug this app in with my own Java applications? for example JMonkey Engine.
2. Can OpenSim be used in Commercial Software?
It has a C++ and a Python API, it's in the software documentation. Read the software license should be in there :)
May Allah guide we Pakistanis to develop such an innovative and helpful applications.Amin
is there anyone who works with opensim, that can teache me how to use?
It's funny that she says Avatar movements are computer generated, because I think they are not. They were made by humans with markers on their bodies. So in fact, Avatar movements were more accurate than this system.
Avatar used motion capture with automatic cleanup software created by Gentle Giant (afaik, should be in the article covering the film in Cinefex), then animators cleaned up motion by hand as well. Also the motion is retargeted for the animated characters since their features are somewhat different. More accurate, well the software used for the movies and for biomechanics research are somewhat different so I don't think you can directly compare it. You use the same motion capture system as used for movies with Opensim as well though the difference is you don't record EMG data and such for movie work afaik.
It is questionable to use general model to simulate pathological gait.
does this software model swimming ?
You could probably use it for that if you have a motion capture system that is accurate enough, can be used under water and if you can simulate the forces a body of water has on the body. But I don't know I'm just a layperson. You basically write software that interfaces with the Opensim API and it's open source so most likely yes you can.
ترجموا لي الفيديوالو سمحتوا ..