Application
In the field of motion information acquisition (such as 3D motion capture, 3D gait analysis, etc.), marker points are usually pasted on captured objects. Marker points reflect light emitted by the device (usually infrared light), the device receives the reflected data, and the system then processes the received data. In this way, information on the movement of objects/people can be obtained.
Markers are needed for accurate and easy 3D scanning. They actually solve two separate issues: difficulty during scanning and
difficulty attaining high accuracy on large object Without markers, the scanner will lose its alignment during scanning and the
software will not know how Frame1 is supposed to be aligned to Frame2, Frame2 to Frame3 and so on The software will try to align all frames using the objects unique geometry.However, this guesswork doesnt always produce great results and in many
cases,especially on objects with large flat surfaces and no unique geometry, even the most sophisticated algorithm will fail