Projection device and projection method

Abstract

Provided are a projection device and a projection method. The projection device comprises a ray machine, a distance measuring unit and a processor. The distance measuring unit is used for emitting test light to a target area and receiving reflected light. The distance measuring unit generates a plurality of corresponding distance information according to the received reflected light and a plurality of areas of the target area. The processor is configured to: generate regional distance information according to a plurality of distance information; selecting a mode from a plurality of sub-region distance information contained in each region distance information as correction distance information corresponding to each region; and controlling the ray machine to project an image beam according to the correction distance information of each area so as to form a projection image in the target area. According to the projection device and the projection method provided by the invention, the interference of obstacles on projection can be eliminated.

Images