1. A method, comprising: acquiring, by a system comprising a processor, image data in a view area of an imaging device; dividing, by the system, the view area into sub-view areas; controlling, by the system, an antenna device to scan a sub-view area of the sub-view areas using a first directed beam; acquiring, by the system, an attribute information set of at least one object in the sub-view area of the sub-view areas based on the first directed beam; in response to determining that the attribute information set comprises attribute information of objects, dividing, by the system, the sub-view area or the view area into secondary sub-view areas; controlling, by the system, the antenna device to scan a secondary sub-view area of the secondary sub-view areas using a second directed beam; acquiring, by the system, attribute information of at least one object in a secondary sub-view area of the secondary sub-view areas based on the second directed beam; and establishing, by the system, a correspondence between the attribute information of the at least one object in the secondary sub-view area and other image data corresponding to the secondary sub-view area.