Through the application of LeapMotion interaction technology, augmented reality technology, combined with Untiy3D game engine design and development of an augmented reality application based on LeapMotion interaction. Finally, the effect of scene interaction between the hand and AR can be achieved through the recognition of the hand and the related action of the hand.

The corresponding three-dimensional model is displayed by calling the Metaio camera to recognize the recognition map. According to the prompt box, the interaction of the hand model is carried out, the target object is collided, and the component collision detection is carried out. After the hand model collides with the target object, the scene is switched. Enter the game scene, use the LeapMotion to realize the control and tracking of the hand, detect the collision between the hand model and the target object, switch the scene, and enter the countdown interface. Call the camera again and enter the AR interface, detect the recognition figure 2, and display the corresponding model. According to the prompt box, the interaction of the hand model is carried out, the target object is collided, and the component collision detection is carried out. After the hand model collides with the target object, switch to game scene two. Enter the game scene 2, find two target objects in the gift box, grasp and bounce the object pair with the hand model, switch the scene through the corresponding operation requirements, and enter the game end interface.