Implementation method of input method based on augmented reality and application and implementation system thereof

The invention belongs to the related technical field of virtual keyboard input, and discloses an implementation method of an input method based on augmented reality, application of the implementation method and an implementation system, and the implementation method comprises the following steps: S1, shooting a live-action picture containing a hand of a user in real time; s2, constructing a virtual hand model based on user hand joint data collected in the real scene picture, and driving the virtual hand model to restore user actions by utilizing joint movement data in the AR application; and S3, superposing the virtual keyboard with fingers except the thumb in the real scene picture, triggering the virtual keyboard by adopting the thumb, obtaining a joint motion driving virtual hand model in a triggering process, and detecting a thumb triggering area in the virtual model to realize input of an input method instruction. According to the method, the entity touch sense and the virtual keyboard can be combined, t