Three-dimensional measurements: a review of technologies and applications

摘要

Purpose – The purpose of this paper is to provide a review of three-dimensional (3D) measurement technologies and their applications.Design/methodology/approach – This paper first describes 3D measuring techniques and then considers a selection of key applications, citing anumber of specific examples. Reference is also made to certain new developments and research activities. Findings – It is shown that both active and passive techniques are used to conduct 3D measurements. The former includes various forms of laserscanning such as time of flight, triangulation and phase measurements and photogrammetry is the main passive method. Laser-based Doppler shifttechniques are used to monitor dynamic phenomena, notably vibration, in three dimensions. These methods are used across a diversity of industriesand disciplines in a wide and varied range of applications. Originality/value – The paper provides a technical review of the leading 3D measurement technologies and their uses.