10Power Lines Extraction from Aerial Images
10.1Introduction
From a traditional point of view, aerial photogrammetric technique is not suited to surveying power lines because the power lines in the aerial images are too small to be detected (Baltsavias 1999). Although the recent airborne light detection and ranging (LiDAR) system is being applied in power line corridor monitoring, not all small private companies can afford the costs of a laser scanning system. With the increasing resolution of the aerial digital camera, it is possible for photogrammetrists to use the existing digital photogrammetric technique to monitor and periodically inspect the status of the power lines. To this end, a flight mission must be designed with consideration ...
