The measurement accuracy of particle detection in 3-D space by means of digital holography : The influence of the accuracy of detecting in-plane particle position on depth measurement

2003 ◽  
Vol 2003.78 (0) ◽  
pp. _7-37_-_7-38_
Author(s):  
Nobuyuki HIDAKA ◽  
Shigeru MURATA
Keyword(s):  
Digital Holography ◽  
Measurement Accuracy ◽  
Particle Detection ◽  
Depth Measurement ◽  
Particle Position

scholarly journals Depth Measurement Based on Infrared Coded Structured Light

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Tong Jia ◽  
ZhongXuan Zhou ◽  
HaiHong Gao
Keyword(s):  
Linear Relationship ◽  
Measurement Accuracy ◽  
Step Length ◽  
Depth Information ◽  
Grid Pattern ◽  
Depth Measurement ◽  
Object Based ◽  
Fitting Algorithm ◽  
Object Depth ◽  
System Errors

Depth measurement is a challenging problem in computer vision research. In this study, we first design a new grid pattern and develop a sequence coding and decoding algorithm to process the pattern. Second, we propose a linear fitting algorithm to derive the linear relationship between the object depth and pixel shift. Third, we obtain depth information on an object based on this linear relationship. Moreover, 3D reconstruction is implemented based on Delaunay triangulation algorithm. Finally, we utilize the regularity of the error curves to correct the system errors and improve the measurement accuracy. The experimental results show that the accuracy of depth measurement is related to the step length of moving object.

scholarly journals Inverse problem approach in particle digital holography: out-of-field particle detection made possible

2007 ◽  
Vol 24 (12) ◽  
pp. 3708 ◽  
Author(s):  
Ferréol Soulez ◽  
Loïc Denis ◽  
Éric Thiébaut ◽  
Corinne Fournier ◽  
Charles Goepfert
Keyword(s):  
Inverse Problem ◽  
Digital Holography ◽  
Particle Detection

Lipid particle detection by means digital holography and lateral shear interferometry

2007 ◽  
Author(s):  
L. Miccio ◽  
S. Grilli ◽  
A. Finizio ◽  
S. De Nicola ◽  
L. De Petrocellis ◽  
...  
Keyword(s):  
Digital Holography ◽  
Lateral Shear ◽  
Particle Detection ◽  
Lipid Particle ◽  
Lateral Shear Interferometry
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