Mocap and fluoroscopy for Shoulder3D project

Mocap and fluoroscopy for Shoulder3D project

In the context of our project Shoulder3D, we spent a day in radiology to acquire specific data required for the validation of our research methodology. The objective of the project is to develop a new kinematic model to reliably evaluate the three-dimensional motion of the shoulder based on motion capture data. In order to compare the kinematics estimated by our methodology with the real motion of the shoulder bones, we performed a double acquisition. We simultaneously recorded motion capture data using our Vicon system and fluoroscopic images.

As you can see on the pictures below, setting up properly the system in such a confine area and dealing with the occlusions of the fluoroscopic device were the tricky parts of our work!

Mocap in fluoroscopy room

Motion capture of a knight in armor

The Institute of Movement Science and Sport Medicine of the University of Geneva and the Willy Taillard Laboratory of Kinesiology of the University Hospital of Geneva contacted us for an unusual motion capture session. Daniel Jaquet, a PhD student in Humanities, focuses his research on the description of fights in full armor in historical documents from the 16th century. Part of his thesis work aims at analyzing the range of possible movements while wearing such a 30 kg medieval armor. By using motion capture, he will be able to get a comprehensive amount of data.

For this mocap session, the main issue was related to the reflective surface of the armor. Indeed, reflections can be perceived as markers by the camera, introducing a lot of unwanted artefacts. By tuning our MXT40S cameras’ parameters and the reconstruction settings, we were able to solve this issue and collect good data for his study.

Thanks to Stéphane Armand, Alice Bonnefoy and Daniel’s equerry for their help during the mocap session!

Markers attached to the armor Daniel - The Knight Mocap with a medieval armorI

Upcoming workshop on motion capture

Upcoming workshop on motion capture

Are you interested in learning more about motion capture or simply curious to discover the magic of mocap? On May 7th and 8th 2012, we will organize a workshop at artanim in collaboration with Focal.

The goal of this two-day workshop will be to put hands on our two motion capture systems: our 24 cameras MXT40s Vicon system and our Xsens MVN motion capture suit. From system calibration to final rendering, the whole pipeline will be covered.

Motion Capture with Vicon Mocap with Xsens Motion capture studio

Program:

  • The first day will be dedicated to capture data. After a brief theoretical presentation on motion capture, participants will be able to try each system and assess their advantages and drawbacks.
  • The second day will focus on data post-processing and their integration in a 3D authoring software. This will allow the participants to get a clearer view of what is involved when using motion capture for 3D animation.

Registration to this workshop is open until April 4th on Focal’s website.

Grand Prix d’Horlogerie de Genève 2011

Grand Prix d’Horlogerie de Genève 2011

Artanim participated in the Grand Prix d’Horlogerie de Genève 2011 which rewards the finest watch creations of the year. The ceremony was held at the Grand Théâtre de Genève on Saturday 19th of November 2011. Simply the best Swiss watchmakers were present, as well as the President of the Confederation – Micheline Calmy-Rey – the Director of the United Nations in Geneva and Ambassadors.

Under the theme “Time in the cinema”, artanim created in collaboration with Move for Art a show combining dance and 3D animation, a leap into the future marked by the inevitable epic sci-fi film “Star Wars” created by George Lucas. Darth Vader, the head of the imperial army, was embodied on stage by a dancer (Manuel Vignoulle). Its 3D clone, as well as the imperial troops were projected on big screens behind him and animated by the rhythm of his motion.

GPHG  Artanim at GPHG

Motion Capture workshop with the students from SAE Institute

Motion Capture workshop with the students from SAE Institute

Last Thursday, the students from the Digital Film Animation Program of SAE Institute Geneva came to our studio for a great workshop on motion capture.
After 5 hours of theoretical lectures, the students were able to discover our motion capture studio and get their hands on our Vicon system.

The first step was to learn how to calibrate properly the system: camera parameters adjustment, reflections, wand wave and finally setting up the origin of the system. Once this was done, they quickly dressed up and started to position the reflective markers on the actors. Care was taken not to forget one!
The next step was to calibrate the actors. A range of motion was first captured and then processed to fit a virtual skeleton to the performers. Last check: no marker is missing, reconstruction is fine, the labeling and the solve is ok… Good! Now let’s capture something!

During the afternoon, a few movements were captured and then post-processed. The students were also able to preview in real-time their animation in Motion Builder. A lot of fun but also a nice way to check how the actor performance will be transposed to a 3D character.

Motion capture courses Motion capture courses

Motion capture demo reel

Here is artanim’s new motion capture demo reel. Discover our facilities and motion capture systems!

Taekwondo and tango movements were captured using our 24 cameras Vicon system. Rock climbing and mountain bike were tracked with our Xsens MVN suit.

Special thanks to Valerie, Sina, Etienne and Houmi for their participation.