With the increasing adoption of Industry 4.0, optical metrology has experienced a significant
boom in its implementation, as an ever-increasing number of manufacturing processes are …

Manufacturers face two opposing challenges: the escalating demand for customized
products and the pressure to reduce delivery lead times. To address these expectations …

Gap and flush measurement is a challenging task in the process of aircraft assembly, which
significantly affects the reliability of aircraft aerodynamic shape. To ensure the quality of …

In data mining, sampling has often been suggested as an effective tool to reduce the size of
the dataset operated at some cost to accuracy. However this loss to accuracy is often difficult …

This paper presents the design and the characterization of a portable laser triangulation
measurement system for measuring gap and flush in the car body assembly process …

The traditional stereo vision system with an air-based imaging model is unsuitable for multi-
layer imaging conditions, where refraction effects can introduce significant errors in the …

Three-dimensional coordinate measurement of feature points on the surface of a large-scale
workpiece is important and difficult. Various relative measuring methods have been …

Incorporating the modal and zonal estimation approaches into a unifying scheme, we
introduce an improved three-dimensional shape reconstruction version of specular surfaces …

The precision measurement of the surfaces of aircraft based on structured light technology is
an important development direction of aircraft skin assembly and maintenance. Based on …

Today digitising systems deliver large sets of data points which are representative of an
object surface, in a relatively short time. These digitised data are generally exploited by …