A low cost 3D scanner based on structured light

Abstract

Automatic 3D acquisition devices (often called 3D scanners) allow to build highly accurate models of real 3D objects in a cost‐ and time‐effective manner. We have experimented this technology in a particular application context: the acquisition of Cultural Heritage artefacts. Specific needs of this domain are: medium‐high accuracy, easy of use, affordable cost of the scanning device, self‐registered acquisition of shape and color data, and finally operational safety for both the operator and the scanned artefacts. According to these requirements, we designed a low‐cost 3D scanner based on structured light which adopts a new, versatile colored stripe pattern approach. We present the scanner architecture, the software technologies adopted, and the first results of its use in a project regarding the 3D acquisition of an archeological statue.

Integration of thermographic data with the 3D object model

“…It allows physicians to visualise in colour and quantify temperature changes in skin surface and thermal parameters, blood flow of few millimetres under the surface. Many studies and analyses have deal with the problem of thermal measurements and 3D technique development [6] [7]. This paper proposes a comprehensive conceptual model that enables combining 3D scanning procedure with thermal imaging to produce 3D object model with merged thermograms.…”

“…It can be solved by using merging technique with 3D scanned data [5].There are many 3D scanning techniques either active or passive. One of more suitable techniques is structured light 3D scanning technique [6]. After having motivated our research, we present the configuration of the system we have built.…”

Pattern codification strategies in structured light systems

“…In 2001, Rocchini et al [11], introduced a slight change in the typical Gray coded patterns in order to ease the localisation of stripe transitions. For this purpose, they proposed encoding the stripes with blue and red instead of black and white.…”

Integration of 3D and multispectral data for cultural heritage applications: Survey and perspectives

“…This technique is the most used for the digitization of cultural heritage objects. It is relatively easy to develop a lab prototype [76], and many commercial systems exist such as those developed by GOM and Breuckmann, the Comet5 from Steiblicher, and the compact, cordless handless Kolibri device by Fraunhofer [77].…”