Camera-Based Input Device

A method for tracking motion of an input device in an environment, the method comprising:

• collecting motion data associated with velocity and acceleration of the input device in the environment;
• capturing images of the environment with at least two visual light cameras;
• determining positions of the input device based on the motion data and the images correlated with a map of the environment;
• and
• tracking a motion of the input device in the environment based on the determined positions of the input device.

An input device implemented for independent motion tracking of itself, the input device comprising:

• a motion sensor configured to detect motion of the input device;
• visual light cameras configured to capture images in three-dimensional (3D) space;
• a positioning system configured to:
• determine positions of the input device based on the detected motion and the images;
• and
• track the motion of the input device in the 3D space based on the determined positions of the input device.