Single-shot diagnostic for the three-dimensional field distribution of a terahertz pulse based on pulsed digital holography

2011 ◽  
Vol 36 (14) ◽  
pp. 2737 ◽  
Author(s):  
Lujie Li ◽  
Xiaolei Wang ◽  
Hongchen Zhai
Keyword(s):  
Field Distribution ◽  
Digital Holography ◽  
Three Dimensional ◽  
Single Shot ◽  
Terahertz Pulse

Single-Shot Digital Holography Using a Spectral Estimation Technique

2014 ◽  
Vol 68 (11) ◽  
pp. 1296-1301 ◽  
Author(s):  
Peng Xia ◽  
Yasuhiro Awatsuji ◽  
Kenzo Nishio ◽  
Shogo Ura ◽  
Osamu Matoba
Keyword(s):  
Spectral Reflectance ◽  
Digital Holography ◽  
Spectral Estimation ◽  
Three Dimensional ◽  
Spectral Information ◽  
Single Shot ◽  
Estimation Technique ◽  
3D Profile

We demonstrate a technique capable of obtaining spectral information and a three-dimensional (3D) profile of an object with a single-shot exposure. This technique is based on digital holography and the spectral estimation technique. In the demonstration of this technique, we simultaneously use three laser lines operating at 473, 532, and 633 nm to record the multiple complex amplitudes of the object corresponding to the wavelengths and obtain reconstructed monochrome images of each wavelength. A spectral estimation technique is applied to estimate the spectral reflectance of the object from the reconstructed monochrome images. We experimentally succeed in estimating the spectral reflectance of a lemon by using the technique.

Parallel Phase-Shifting Digital Holography Capable of Simultaneously Capturing Visible and Invisible Three-Dimensional Information

2010 ◽  
Vol 6 (10) ◽  
pp. 472-478 ◽  
Author(s):  
Takashi Kakue ◽  
Kenichi Ito ◽  
Tatsuki Tahara ◽  
Yasuhiro Awatsuji ◽  
Kenzo Nishio ◽  
...  
Keyword(s):  
Digital Holography ◽  
Three Dimensional ◽  
Phase Shifting

Single-shot, dual-wavelength digital holography based on polarizing separation

2011 ◽  
Vol 50 (19) ◽  
pp. 3360 ◽  
Author(s):  
D. G. Abdelsalam ◽  
Robert Magnusson ◽  
Daesuk Kim
Keyword(s):  
Digital Holography ◽  
Dual Wavelength ◽  
Single Shot

scholarly journals The study of three-dimensional temperature field distribution reconstruction using ultrasonic thermometry

AIP Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 075007 ◽  
Author(s):  
Ruixi Jia ◽  
Qingyu Xiong ◽  
Kai Wang ◽  
Lijie Wang ◽  
Guangyu Xu ◽  
...  
Keyword(s):  
Temperature Field ◽  
Field Distribution ◽  
Three Dimensional ◽  
Temperature Field Distribution

scholarly journals Single-shot detection of 8 unique monochrome fringe patterns representing 4 distinct directions via multispectral fringe projection profilometry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Parsa Omidi ◽  
Mohamadreza Najiminaini ◽  
Mamadou Diop ◽  
Jeffrey J. L. Carson
Keyword(s):  
Spatial Resolution ◽  
Fringe Pattern ◽  
Three Dimensional ◽  
Fringe Projection ◽  
Video Frame ◽  
Single Shot ◽  
Shot Detection ◽  
Fringe Patterns ◽  
Fringe Projection Profilometry ◽  
Multispectral Camera

AbstractSpatial resolution in three-dimensional fringe projection profilometry is determined in large part by the number and spacing of fringes projected onto an object. Due to the intensity-based nature of fringe projection profilometry, fringe patterns must be generated in succession, which is time-consuming. As a result, the surface features of highly dynamic objects are difficult to measure. Here, we introduce multispectral fringe projection profilometry, a novel method that utilizes multispectral illumination to project a multispectral fringe pattern onto an object combined with a multispectral camera to detect the deformation of the fringe patterns due to the object. The multispectral camera enables the detection of 8 unique monochrome fringe patterns representing 4 distinct directions in a single snapshot. Furthermore, for each direction, the camera detects two π-phase shifted fringe patterns. Each pair of fringe patterns can be differenced to generate a differential fringe pattern that corrects for illumination offsets and mitigates the effects of glare from highly reflective surfaces. The new multispectral method solves many practical problems related to conventional fringe projection profilometry and doubles the effective spatial resolution. The method is suitable for high-quality fast 3D profilometry at video frame rates.

Single-shot three-dimensional imaging with a scattering layer [Invited]

2021 ◽  
Vol 60 (10) ◽  
pp. B32
Author(s):  
Guowei Li ◽  
Wanqing Yang ◽  
Yaoming Bian ◽  
Haichao Wang ◽  
Guohai Situ
Keyword(s):  
Three Dimensional ◽  
Single Shot ◽  
Scattering Layer ◽  
Three Dimensional Imaging
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