Systems and Methods for Modeling Structures Using Point Clouds Derived from Stereoscopic Image Pairs

A system for modeling a structure, comprising:

• an aerial imagery database;
• and
• a processor in communication with the aerial imagery database, the processor:
• retrieving at least one stereoscopic image pair from the aerial imagery database;
• determining whether a three-dimensional point cloud corresponding to the at least one stereoscopic image pair exists;
• if the three-dimensional point cloud corresponding to the at least one stereoscopic image pair exists, generating a three dimensional architectural polygonal model of the structure using the three-dimensional point cloud;
• and
• if the three-dimensional point cloud corresponding to the at least one stereoscopic image pair does not exist:
• identifying a target image from the at least one stereoscopic image pair;
• identifying a reference image from the at least one stereoscopic image pair;
• calculating a disparity value for each pixel of the identified target image;
• generating a disparity map based on the calculated disparity values for each pixel of the identified target image;
• generating the three dimensional point cloud based on the disparity map, the identified target image, and the identified reference image;
• and
• generating a three dimensional architectural polygonal model of the structure using the three-dimensional point cloud.