Motion capture is a technology used to record the movements of objects or people. It involves placing sensors or markers on a subject, which can be a human actor or an animated character. These sensors track the movement in real-time, capturing the data for later use in animation or video games. The recorded data is then translated into digital information, allowing animators to create realistic movements in 3D animation or video games. This technique is widely used in the film industry, especially in creating lifelike characters, such as those seen in Avatar or The Lord of the Rings.