The two main types of optical motion capture technologies are passive or reflective and active or pulsed-LED. Optical motion capture systems are used to track the motion of a subject through markers or pulsed LEDs, and many camera systems are typically needed for full-body motion capture. Whereas passive optical motion capture typically uses infrared LEDs, active optical motion capture uses pulsed LEDs which measure infrared light from LEDs as opposed to light reflected off markers.
mishywangiepie
In this example, it seems that the balls would be easily occluded by having a single retroflective marker visible only from one side of the spherical object, especially with other objects in the scene. Are the object locations typically used in passive motion capture usually not of paramount importance such as background items?
shivamparikh
While the passive is definitely a less complicated scenario of motion capture when compared to the active, I think the retroreflective markers present obstacles in clearly identifying which marker is being identified and the noise in collection could lead to motion disruptions.
/slides/slide-8.jpg)
The two main types of optical motion capture technologies are passive or reflective and active or pulsed-LED. Optical motion capture systems are used to track the motion of a subject through markers or pulsed LEDs, and many camera systems are typically needed for full-body motion capture. Whereas passive optical motion capture typically uses infrared LEDs, active optical motion capture uses pulsed LEDs which measure infrared light from LEDs as opposed to light reflected off markers.
In this example, it seems that the balls would be easily occluded by having a single retroflective marker visible only from one side of the spherical object, especially with other objects in the scene. Are the object locations typically used in passive motion capture usually not of paramount importance such as background items?
While the passive is definitely a less complicated scenario of motion capture when compared to the active, I think the retroreflective markers present obstacles in clearly identifying which marker is being identified and the noise in collection could lead to motion disruptions.