1. A system for aerial image detection and classification, comprising: an aerial image database storing one or more aerial images electronically received from one or more image providers; and a computer system in communication with the aerial image database, the computer system including an object detection pre-processing engine in electronic communication with the aerial image database, the object detection pre-processing engine detecting and classifying objects using: a disparity mapping generation module for automatically processing the one or more aerial images to generate a disparity map providing elevation information; a segmentation module for automatically applying a pre-defined elevation threshold to the disparity map, the pre-defined elevation threshold adjustable by a user; and a classification module for automatically detecting and classifying objects in the one or more stereoscopic pairs of aerial images by applying one or more automated detectors based on classification parameters and the pre-defined elevation threshold.