The design and implementation of interactive game based on PTAM

PTAM (Parallel Tracking and Mapping) is the popular camera tracking technology. In this paper, we design and implement an interaction game of Egg Catcher based on PTAM. To deal with the problems occurred when camera is in fast-moving or scene lighting changes, we introduce a described method of feature point. The method will firstly do some pre-treatment of rotating to the images according to the main direction of the feature point, and adopt the adaptive threshold method to improve the test definition of the feature points. And the robustness of it can be greatly improved even under the circumstance when camera is in fast moving or scene lighting changes. At last, we implement a real-time interactive games based on the improved PTAM technology.