In "The Curious Case of Benjamin Button," the director tried to use a short actor to play the role of Barton in childhood, and then used a two-dimensional synthesis method to "project" Pete's makeup face onto the actor's face. However, there is always a difference between an actor's head movement and Pete's movement, and it is difficult to synthesize the two. So the "Digital Domain" company decided to adopt another method: make a computer-animated CG head, "map" Pete's expression onto the CG head, and then put the CG head around the neck of the actor who played childhood Patton.
In order to restore the information of the actor's facial expressions. The special effects crew used 3D scanning technology to copy a 3D digital model of Pete’s head. Then, the producer asked Pete to make a variety of expressions and made models of each expression separately. At the same time, they also made Patton's models for all ages. 3D digital model of the head. Finally, the producer matched the key points of the 3D digital model of Pete's head with the key points of the 3D digital model of Patton's head, and finally completed the film.
