What is Photo Scanning

More and more studies have been conducted in the field of architectural survey: the development and the optimization of new technologies, are greatly expanding the range of application, reaching more properly engineering areas. Strong standardization of infographics technologies the way of restitution of the artifacts is changing: no more - and not only - bi-tridimensional productions, but conceptual analysis and representations that go beyond the simple “visual” aspect of the work on which we investigate. However, we encounter new and important problems about the standards to be followed and the reliability and compatibility of the implemented procedures and methodologies. The aim of this chapter is the definition of a documentation able to guarantee the scientific survey operations, a decay of the errors and an adequate graphical output, combining the direct survey to the photo scanning technique applying this methodology to the survey of Sant'Angelo Fasanella bridge in province of Salerno.