Optical tracking is a technology that uses cameras and sensors to monitor the position and movement of objects in real-time. It works by capturing images of the object and analyzing these images to determine its location and trajectory. This method is commonly used in various fields, including virtual reality, augmented reality, and motion capture for films and video games. The system typically involves placing markers on the object being tracked, which can be detected by the cameras. These markers can be reflective or colored, allowing the software to distinguish them from the background. Optical tracking is valued for its accuracy and ability to provide detailed movement data.