With the advances in scientific foundations and technological implementations, optical
metrology has become versatile problem-solving backbones in manufacturing, fundamental …

Digital holography (DH) has emerged as one of the most effective coherent imaging
technologies. The technological developments of digital sensors and optical elements have …

We propose a wrapped phase denoising method based on convolutional neural networks
(CNN), which can effectively denoise a noisy wrapped phase. The noisy numerator and …

This paper presents a non-iterative phase retrieval method from randomly phase-shifted
fringe images. By combining the hyperaccurate least squares ellipse fitting method with the …

Fringe projection profilometry has wide applications in three-dimensional measurement.
When the fringes are projected onto the shiny surfaces with a large reflectivity, however, the …

It is well known that a highly coherent laser is used as the illumination source in the digital
holographic microscopy (DHM) recording optical path. Lighting sources and optical …

This paper presents a method of significantly improving the previously proposed simple,
flexible, and accurate phase retrieval algorithm for the random phase-shifting interferometry …

For three-dimensional shape measurement, phase-shifting techniques are widely used to
recover the objective phase containing height information from images of projected fringes …

Phase extraction methods based on the principal component analysis (PCA) can extract
objective phase from phase-shifted fringes without any prior knowledge about their shift …

Recent development of parallel phase-shifting interferometry (PPSI) enables accurate
measurement of time-varying phase maps. By combining a high-speed camera with PPSI, it …