An association relating to the field of communications is enabled. A method comprises: acquiring image data in a view area of an imaging device; dividing the view area into sub-view areas; acquiring an attribute information set of an object in any one of the sub-view areas through beam scanning; in response to that the attribute information set comprises attribute information of multiple objects, dividing the one sub-view area or the view area into secondary sub-view areas; acquiring attribute information of at least one object in any one of the secondary sub-view areas through beam scanning; and establishing a correspondence between the attribute information of the object in the one secondary sub-view area and image data corresponding to the one secondary sub-view area. A user can obtain a correspondence between attribute information of an object and image data of the object more conveniently.