ABSTRACT
This chapter gives an overview of some nondestructive technologies. It provides technical knowledge regarding data acquisition techniques that are used in the characterisation and preservation of important monuments and common constructions, such as multispectral images, geophysics data (ground-penetrating radar [GPR]), flat-jack tests, infrared thermographic images, laser scanning data and ultrasound. Despite the availability of detailed overview information on these nondestructive techniques, there are always new data regarding the rapid development and the new applications used in cultural heritage, on the one hand, and on the other hand, facing the challenge of being capable of shedding new light on these new interesting techniques and application examples. The integration of terrestrial laser scanning (TLS) with other nondestructive methods has also been used to improve the comprehension of interactions between different phenomena and to allow a better decision and planning process.
