[HTML][HTML] Two-frequency phase-shifting method vs. Gray-coded-based method in dynamic fringe projection profilometry: A comparative review
Two-frequency phase-shifting phase unwrapping and Gray-coded-based phase unwrapping
are two typical temporal phase unwrapping methods to recover discontinuous or spatially …
are two typical temporal phase unwrapping methods to recover discontinuous or spatially …
Development of surface reconstruction algorithms for optical interferometric measurement
D Wu, F Fang - Frontiers of Mechanical Engineering, 2021 - Springer
Optical interferometry is a powerful tool for measuring and characterizing areal surface
topography in precision manufacturing. A variety of instruments based on optical …
topography in precision manufacturing. A variety of instruments based on optical …
High-speed and high-efficiency three-dimensional shape measurement based on Gray-coded light
Fringe projection profilometry has been increasingly sought and applied in dynamic three-
dimensional (3D) shape measurement. In this work, a robust, high-efficiency 3D …
dimensional (3D) shape measurement. In this work, a robust, high-efficiency 3D …
Comparison of Fourier transform, windowed Fourier transform, and wavelet transform methods for phase extraction from a single fringe pattern in fringe projection …
Fringe projection profilometry is widely used for three-dimensional (3-D) surface shape
measurement using phase-shifting (PS) methods with multiple images or transform methods …
measurement using phase-shifting (PS) methods with multiple images or transform methods …
Method and apparatus for performing optical imaging using frequency-domain interferometry
3,090,753 3,601.480 3,856,000 3,872.407 3,941,121 3,973,219 3,983,507 4,030,827
4,140,364 4,141,362 4,224,929 4,295,738 4,300,816 4,303.300 4,428,643 4,479,499 …
4,140,364 4,141,362 4,224,929 4,295,738 4,300,816 4,303.300 4,428,643 4,479,499 …
System and method for optical coherence imaging
Apparatus and method are provided for transmitting at least one electro-magnetic radiation
is provided. In particular, at least one optical fiber having at least one end extending along a …
is provided. In particular, at least one optical fiber having at least one end extending along a …
Optical methods for tissue analysis
GJ Tearney, BE Bouma - US Patent 7,231,243, 2007 - Google Patents
US PATENT DOCUMENTS 6,117,128 A 9/2000 Gregory 6,120,516 A 9, 2000 Selmon et al.
5,248,876 A 9, 1993 Kerstens et al. 6,134,003 A 10/2000 Tearney et al. 5,262,644. A 1 …
5,248,876 A 9, 1993 Kerstens et al. 6,134,003 A 10/2000 Tearney et al. 5,262,644. A 1 …
Improved vertical-scanning interferometry
A Harasaki, J Schmit, JC Wyant - Applied optics, 2000 - opg.optica.org
We describe a method that combines phase-shifting and coherence-peak-sensing
techniques to permit measurements with the height resolution of phase-shifting …
techniques to permit measurements with the height resolution of phase-shifting …
Fiber-optic rotational device, optical system and method for imaging a sample
A device, system and method for transmitting electro-magnetic radiation between at least
two separate fibers (as well as for imaging a sample) are provided. For example, a first …
two separate fibers (as well as for imaging a sample) are provided. For example, a first …
Thickness-profile measurement of transparent thin-film layers by white-light scanning interferometry
SW Kim, GH Kim - Applied Optics, 1999 - opg.optica.org
White-light scanning interferometry is increasingly used for precision profile metrology of
engineering surfaces, but its current applications are limited primarily to opaque surfaces …
engineering surfaces, but its current applications are limited primarily to opaque surfaces …