ARToolKit

ARToolKit is an open-source software library used for creating augmented reality (AR) applications. It enables developers to overlay digital images and information onto the real world by recognizing visual markers, like QR codes, through a camera. When the camera detects these markers, the software calculates their position and orientation, allowing virtual objects to be placed in specific locations as if they coexist with the physical environment. This technology is widely used in various fields, including gaming, education, and training, to enhance user experiences by blending digital content with the real world.