Camera calibration is difficult when the focus plane is in a dangerous place or where people
are not easy to reach. Therefore, this paper proposes a calibration method which can be …

A new 3D measuring method based on computer-generated moiré fringes is proposed. The
two AC components of the 0-degree and 90-degree phase-shifted fringe patterns on …

Some advances in fringe analysis technology for phase computing are presented. A full
scheme for phase evaluation, applicable to automatic applications, is proposed. The …

A simple and efficient phase-unwrapping algorithm based on a rounding procedure and a
global least-squares minimization is proposed. Instead of processing the gradient of the …

Clear and focused pattern images are essential prerequisites for accurate feature detection
in traditional camera calibration methods, which introduce numerous limitations in various …

A new approach to the problem of measuring the phase shift from variances of interferogram
differences based on Fourier domain analysis is proposed. It is shown that the use of true …

A simple camera calibration method based on the principle of phase encoding and
coordinate transformation is proposed. We use a reference coordinate frame encoded as a …

A hybrid algorithm is proposed in this study for demodulating a single spatial carrier fringe
pattern (FP) of interferometric measurement, which essentially combines the spatial carrier …

为提高傅里叶变换轮廓术(FTP) 的测量精度和范围, 提出了一种改进的消零频FTP.
将两幅随机相移正弦条纹通过DLP 投影仪投射到待测物体上, 由CCD 相机采集受物体形貌调制 …

Analysis of closed-fringe patterns with quadratic phase that are often encountered plays an
important role in optical interferometry. But because the frequency spectra of the two …