Flash control method and device, as well as image acquisition method and equipment

The technical scheme of the embodiment of the invention discloses a flash control method and device, as well as an image acquisition method and equipment. The flash control method comprises the following steps: acquiring depth distribution information of at least one shot object relative to a shoot reference position in a to-be-shot scene; determining a plurality of projection focal lengths according to the depth distribution information; and determining a plurality of flash patterns corresponding to the projection focal lengths one by one at least according to the depth distribution information. According to the implementation scheme of the embodiment of the invention, the projection focal lengths and the flash patterns for flashing the shot objects within different depth ranges are determined according to the depth distribution information of the shot objects in the to-be-shot scene, so that the shot objects within different depth ranges in the to-be-shot scene can be suitably supplemented with light through the projection local lengths and the flash patterns when the to-be-shot scene is shot, and an image of the to-be-shot scene with a good exposure effect is further acquired.