Deflectometry for specular surfaces: an overview
Deflectometry as a technique to assess reflective surfaces has now existed for some 40
years. Its different aspects and variations have been studied in multiple theses and research …
years. Its different aspects and variations have been studied in multiple theses and research …
[HTML][HTML] Real-time 3D measurement of freeform surfaces by dynamic deflectometry based on diagonal spatial carrier-frequency pattern projection
Deflectometry is a three-dimensional optical technique based on structured light projection
for measuring and inspecting specular freeform surfaces. Conventional deflectometry …
for measuring and inspecting specular freeform surfaces. Conventional deflectometry …
DYnet++: A Deep Learning Based Single-Shot Phase-Measuring Deflectometry for the 3-D Measurement of Complex Free-Form Surfaces
Deflectometry is a three-dimensional optical technique based on the structured light
projection for measuring specular free-form surfaces. Much research on single-shot …
projection for measuring specular free-form surfaces. Much research on single-shot …
[HTML][HTML] From Single Shot to Structure: End-to-End Network-Based Deflectometry for Specular Free-Form Surface Reconstruction
Deflectometry is a key component in the precise measurement of specular (mirrored)
surfaces; however, traditional methods often lack an end-to-end approach that performs 3D …
surfaces; however, traditional methods often lack an end-to-end approach that performs 3D …
Digital holographic camera with extended stochastic illumination for non-destructive inspection of silicon optics
In the present work, we propose a compact digital holographic camera (DHC) with extended
stochastic illumination for full-field non-destructive inspection of silicon optics fabricated in a …
stochastic illumination for full-field non-destructive inspection of silicon optics fabricated in a …
Novel calibration method for the refractive parameters of transparent screens
Y Fu, W Yang, F Ma, G Jiang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Biplanar deflectometry based on transparent screens (TSs) does not necessitate any
movement of the screen or the addition of a spectroscope, mitigating the issues of complex …
movement of the screen or the addition of a spectroscope, mitigating the issues of complex …
[HTML][HTML] Wavefront error peak removal by carrier phase reconstruction technique for slope measurement type sensors
A robust and novel technique for wavefront retrieval from slope data is presented in this
paper. A simple wavefront with stable error is used as a carrier wavefront for measurement …
paper. A simple wavefront with stable error is used as a carrier wavefront for measurement …
Dynamic deflectometry for real-time 3D surface measurements
YS Ghim, HG Rhee - Quantum Sensing and Metrology, 2024 - opg.optica.org
As a summary of the authors' previous paper of Ref 1, we describe a simple and high speed
deflectometry for measuring specular surfaces accurately and efficiently. Conventional …
deflectometry for measuring specular surfaces accurately and efficiently. Conventional …
Deep learning-based phase measuring deflectometry for one-shot measurement and inspection of specular free-form surfaces
YS Ghim, HG Rhee - Interferometry and Structured Light …, 2024 - spiedigitallibrary.org
Deflectometry is a non-contact optical technique used for measuring specular free-form
surfaces by projecting structured light using a display screen (LCD screen). While one-shot …
surfaces by projecting structured light using a display screen (LCD screen). While one-shot …
High-precision binocular fringe reflectometry based on normal vector consistency
Y Li, B Cui, Z Zhao, D Li, J Zhou - International Conference on …, 2024 - spiedigitallibrary.org
Modern manufacturing industry has a strong measurement demand of specular surfaces.
Fringe reflection method has the advantages of simple structure, low cost, high accuracy …
Fringe reflection method has the advantages of simple structure, low cost, high accuracy …