Dimensional Analysis of Bridges from a Single Image

Dimensional analysis from single images is still a fruitful topic for investigation, even if range sensors and stereo imaging technologies are becoming a common alternative to the generation of metric information. This paper describes the scientific approach developed for the dimensional analysis of bridges based on a single image. The basic dimensions of bridges are provided using a low-cost and flexible alternative that breaks with the classical stereoscopic photogrammetric principle. Several case studies are reported to demonstrate the novelty and real capabilities of this methodology.