Frequency-Domain Triangulation of Spatial Harmonic Motion for Single-Camera Operating Deflection Shape Measurement

2020 ◽  
pp. 27-30
Author(s):  
Domen Gorjup ◽  
Janko Slavič ◽  
Miha Boltežar
Keyword(s):  
Frequency Domain ◽  
Shape Measurement ◽  
Single Camera ◽  
Spatial Harmonic ◽  
Harmonic Motion

PRECISE SHAPE MEASUREMENT OF DYNAMIC SURFACE VIA SINGLE CAMERA STEREO

2006 ◽  
Vol 03 (01) ◽  
pp. 53-60
Author(s):  
LUPING AN ◽  
YUNDE JIA ◽  
MINGTAO PEI ◽  
HONGBIN DENG
Keyword(s):  
Stereo Vision ◽  
Stereo Matching ◽  
Vision System ◽  
Least Square ◽  
Shape Measurement ◽  
Single Camera ◽  
Dynamic Surface ◽  
Moving Least Square ◽  
Stereo Vision System ◽  
Precise Shape

In this article, a method of the precise shape measurement of dynamic surfaces via a single camera stereo vision system is presented, a cross-curve pattern is painted on the surface of an object, and the intersections of cross-curves which represent the shape of the object are measured by the stereo vision system. The system with a single camera is modeled as a virtual binocular stereo by strong calibration technique. Binocular epipolar rectification is used to make the stereo matching efficient, and principal curves theory is employed to extract curves in images for stereo matching. Under the framework of RANSAC, the curves are interpolated robustly with cubic spline based on moving-least-square (MLS). Experimental results on both static and dynamic deforming surfaces illustrate the effectiveness of the proposed method.

scholarly journals Coherent digital demodulation of single-camera N-projections for 3D-object shape measurement: Co-phased profilometry

2013 ◽  
Vol 21 (21) ◽  
pp. 24873 ◽  
Author(s):  
M. Servin ◽  
G. Garnica ◽  
J. C. Estrada ◽  
A. Quiroga
Keyword(s):  
Shape Measurement ◽  
Single Camera ◽  
Object Shape ◽  
3D Object ◽  
Digital Demodulation

Real-time object motion estimation based on frequency domain matching from a single camera

2016 ◽  
Vol 24 (4) ◽  
pp. 463-473
Author(s):  
Tserennadmid Tumurbaatar ◽  
Taejung Kim
Keyword(s):  
Motion Estimation ◽  
Frequency Domain ◽  
Real Time ◽  
Object Motion ◽  
Single Camera

Whole Shape Measurement System Using a Single Camera and a Cylindrical Mirror

2006 ◽  
Author(s):  
Y. Uranishi ◽  
M. Naganawa ◽  
Y. Yasumuro ◽  
M. Imura ◽  
Y. Manabe ◽  
...  
Keyword(s):  
Measurement System ◽  
Shape Measurement ◽  
Single Camera ◽  
Cylindrical Mirror

Spatial-harmonic Neutron Spectrum Effect on Frequency-domain Modal Analysis of Regional Stability in BWR

1999 ◽  
Vol 36 (1) ◽  
pp. 81-94 ◽  
Author(s):  
Tsuyoshi AMA ◽  
Toshikazu TAKEDA ◽  
Hideaki IKEDA ◽  
Kengo HASHIMOTO
Keyword(s):  
Modal Analysis ◽  
Frequency Domain ◽  
Neutron Spectrum ◽  
Spatial Harmonic ◽  
Regional Stability ◽  
Spectrum Effect

Discussion following the presentation by F. Deubner

1977 ◽  
Vol 36 ◽  
pp. 69-74
Keyword(s):  
List Type ◽  
The Sun ◽  
Type Number ◽  
Harmonic Motion ◽  
Locally Excited ◽  
Long Period ◽  
Coherent Wave ◽  
Short Period ◽  
Global Modes

The discussion was separated into 3 different topics according to the separation made by the reviewer between the different periods of waves observed in the sun :1) global modes (long period oscillations) with predominantly radial harmonic motion.2) modes with large coherent - wave systems but not necessarily global excitation (300 s oscillation).3) locally excited - short period waves.

Correction to "The analysis of slug tests in the frequency domain" (WRR 25(11), pp. 2388-2396

1990 ◽  
Vol 26 (8) ◽  
pp. 1863-1863
Author(s):  
Paul Marschall ◽  
Baldur Barczewski
Keyword(s):  
Frequency Domain ◽  
Slug Tests
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