receiving a first dataset indicating a first surrounding with a first perspective, the first dataset including a first image taken by the first movable object;

receiving, by the first movable object, a second dataset indicating a second surrounding with a second perspective from an external source of the first movable object:

generating a composite dataset from the first and the second datasets;

extracting parameters describing a structure from the composite dataset, the parameters including at least one of a distance of the structure from the first movable object, a location and a size of the structure, and motion of the structure;

determining that the first movable object has potential collision with the structure n a moving path of the first movable object based on the extracted parameters;

identifying the structure as an obstacle; and

causing the first movable object to avoid the obstacle by altering the moving path of the first movable object.