Projection Method and Projection System for Augmented Reality Applications

A projection system comprising:

• a projection surface configured to display an image;
• and
• a projector comprising:
• a distance sensor configured to detect at least one focal length between the projector and the projection surface;
• a memory configured to save data;
• and
• a processor coupled to the distance sensor and the memory;
• wherein the processor establishes a projection map of an environmental space according to at least one displacement vector and at least one deflection angle of the projector, the distance sensor identifies at least one feature position point in the environmental space, the processor updates the projection map for generating a projection feature map according to the at least one feature position point, the processor calibrates the projection surface projected by the projector for compensating distortions of the projection surface, and the projection map and the projection feature map are saved in the memory.