Research on Augmented Reality Extended Tracking Technology for Mobile Terminal

In consideration of problems with mobile terminal augmented reality, including instability and robustness of the spatial registration results, in this paper, we proposed an improved extended tracking algorithm based on mobile terminal. The algorithm adjusts the recursion of the decision trees based on the feature points, which overcomes the problems of inadequate feature tracking and weak stability of the traditional tracking algorithms. After matching and tracking the feature points of the image, the algorithm of this paper combines the assistant tracking technology of mobile multi-sensor fusion, and realizes the augmented reality system. The experimental results show that the system improves the display effect of the virtual objects in the real scene when there are light, scale and noise in the scene for the complicated outdoor environment, and has strong robustness and stability.