360-Degree Outdoor Motion Capture
The Metria MPT Series 2 System’s factory calibration, unique marker
identification, and single camera operation make it easy to use in any
location. So when the Metria engineering team wanted to test the system’s
capability of creating a 360-degree whole-body capture, it was only natural
that we perform the test outdoors.
Our goal was to collect all measurement data for an entire human by
capturing the motion of a whole person, head to toe, front to back. Seamless
execution of this task would drastically cut down the time 3D animators spend building
skeletal models for their characters to mere minutes.
Since we needed four MPT Series 2 cameras to capture whole body
measurement, we took the system outdoors and simultaneously tested for marker
occlusion due to the reflection of sunlight.
Four cameras were set up in a square, pointing toward the center. Our
subject, Sara, was outfitted with markers from head to toe. We conducted a
series of captures to collect a set of 3D measurements for every marker. We also captured video of Sara as she performed the movement.
A co-registration capability enabled all cameras and markers to
automatically work together as one unit. Our software program auto-combined the
data from all four cameras to each marker, creating a super set of data. We
then took that cluster of markers and distilled it down to the point where it became an active skeletal model ready for a character build. We also concluded that
sunlight does not impact the accuracy and identification of the MPT markers.
Check out a side-by-side comparison of the rendering and the video
below.