Optically transmissive and reflective objects may have varying surface profiles, which
translate to arbitrary phase profiles for light either transmitted through or reflected from the …

Camera tracking has become a key technology for various application scenarios, especially
for AR-based camera-to-screen interaction. Demand for subtle motion detection in camera …

The fourth industrial revolution is rapidly emerging as a new innovation trend for industrial
automation. Accordingly, the demand for inspection equipment is highly increasing and …

In the realm of AR applications and particularly camera-to-screen interactions, camera
tracking stands as a crucial technology. However, the ever-increasing demand for tracking …

Weighted least-squares (WLS) phase unwrapping is widely used in optical engineering.
However, this technique still has issues in coping with discontinuity as well as noise. In this …

An improved computer-generated moiré profilometry (CGMP) with flat image calibration is
proposed. In CGMP, the purification of the AC component plays a decisive role. While a …

A simple non-interferometric incoherent light ray propagation model is introduced to perform
three-dimensional profiling of transparent objects with typical thicknesses of the order of mm …

In the deflectometric measurement of transparent elements, it is critical to separate the
superposed fringes reflected from the front and rear surfaces to establish the pixel …

The present paper describes a novel implementation of the continuous phase shifting
method (PSM), named heterodyne holography, in a scanning probe microscope …

Phase demodulation from a single moiré fringe pattern is an ill-posed inverse problem that
limits the applications of moiré profilometry in dynamic three-dimensional (3D) …