Abstract: Methods and systems for detecting objects from aerial imagery are disclosed. According to certain embodiments, the method may include obtaining a Digital Surface Model (DSM) image of an area. The method may also include obtaining a DSM image of one or more target objects. The method may further include detecting the target object in the area based on the DSM images of the area and the one or more target objects. The method may further include recognizing the detected target objects by artificial intelligence. The method may further include acquiring the positions of the recognized target objects. The method may further include calculating the number of the recognized target objects.