Die optische Vermessung gekrümmter Oberflächen erfolgt meist über problemspezifische
Messverfahren und Algorithmen zur 3D-Rekonstruktion, die an die optischen Eigenschaften …

With the invention of the deflectometry, a method for defect detection and classification on
specular surface was presented. Even though several improvements took place in this field …

The perception of defects on specular surfaces is highly dependent on the curvature of the
surface and the environment which is reflected in the surface. Flaws can be perceived as …

The main principle of shape from specular surface acquisition is to use a highly controllable
environment, where a screen on which a well-defined pattern is presented is observed via …

We present a novel method for measuring a curved specular surface profile, which is the
moiré deflectometry under incoherent (white light) illumination. In our proposed system …

Light field cameras play an increasingly important role in computer vision and optical
metrology. However, due to their complex design, their calibration is very difficult and usually …

The use of image processing is being accelerated over the past years in areas, including
artificial intelligence, medical field, remote sensing and microscopic imaging. For 3D …

In 3D measurement, specular surfaces can be reconstructed by phase shift reflectometry
and the system configuration is simple. In this paper, a wafer is measured for industrial …

Deflectometric methods have been extensively used, both in research and industry, to
measure the shape of specular surfaces. The method presented in this paper makes it …

Despite years of research, the reliable shape reconstruction of highly specular objects is still
a largely unsolved problem, especially for complex objects or worse-than-ideal observation …