Accurate fringe order recognition with adaptive morphological operations for 3D measurement
H Wu, Y Cao, Y Dai - Optics and Lasers in Engineering, 2023 - Elsevier
Temporal phase unwrapping (TPU) techniques are vulnerable to inaccurate recognition of
fringe order due to various factors, including noise, motion blur and defocusing effects. The …
fringe order due to various factors, including noise, motion blur and defocusing effects. The …
Specular surface deformation measurement based on projected-speckle deflectometry with digital image correlation
Traditional deflectometry techniques suffer from the issue of out-of-focus image acquisition
since the camera is pointed directly at the specular surface, and the image quality is greatly …
since the camera is pointed directly at the specular surface, and the image quality is greatly …
Correcting projector lens distortion in real time with a scale-offset model for structured light illumination
In fringe projection profilometry, inevitable distortion of optical lenses decreases phase
accuracy and decreases the quality of 3D point clouds. For camera lens distortion, existing …
accuracy and decreases the quality of 3D point clouds. For camera lens distortion, existing …
Segmentation phase measuring deflectometry for measuring structured specular surfaces
Accurate and fast three-dimensional (3D) measurement for industrial products/components
designed to possess 3D structured shapes is a key driver for improved productivity …
designed to possess 3D structured shapes is a key driver for improved productivity …
Wavefront-coded phase measuring deflectometry for the all-focused measurement
Z Niu, J Wang, Y Tian, Z Wu, C Wei, J Shao - Optics Letters, 2022 - opg.optica.org
Phase measuring deflectometry is a powerful measuring method for complex optical
surfaces, which captures the reflected fringe images encoded on the screen under the …
surfaces, which captures the reflected fringe images encoded on the screen under the …
Dynamic computer-generated moiré profilometry based on high-density binary coding
B Qin, Y Cao - Applied Optics, 2023 - opg.optica.org
A dynamic computer-generated moiré profilometry based on high-density binary coding is
proposed. For making full use of the maximum refresh rate and the maximum resolution of …
proposed. For making full use of the maximum refresh rate and the maximum resolution of …
[PDF][PDF] 二值条纹离焦投影技术综述
付莉娜, 杨静雯, 李雁玲, 张宗华, 高楠… - Laser & …, 2022 - researching.cn
摘要光学三维测量技术发展已经非常成熟, 在工业制造, 生物医疗, 文物保护等领域都有着广泛的
应用. 但传统条纹投影测量中使用的正弦条纹无法避免投影仪和相机Gamma 效应的影响 …
应用. 但传统条纹投影测量中使用的正弦条纹无法避免投影仪和相机Gamma 效应的影响 …
Aided imaging phase measuring deflectometry based on concave focusing mirror
With the rapid development of aerospace, high-speed train, and automotive industries, the
demand for the measurement of high-precision specular components is increasing. The …
demand for the measurement of high-precision specular components is increasing. The …
Real-time compensation of projector lens distortion using a linear-grid model in fringe projection profilometry
In fringe projection profilometry, applying pre-distortion to fringe patterns reduces the errors
caused by projector lens distortion. However, it is important to note that discontinuous fringe …
caused by projector lens distortion. However, it is important to note that discontinuous fringe …
3D single-pixel imaging at the near-infrared wave band
Focal plane detector array technology in the infrared wave band is expensive or
underdeveloped, and the detection efficiency is low, while single-pixel imaging (SPI) offers …
underdeveloped, and the detection efficiency is low, while single-pixel imaging (SPI) offers …