Pixel matching method in on-line three-dimensional measurement based on normalized equiphase plane

2017 ◽  
Vol 46 (7) ◽  
pp. 717004
Author(s):  
许幸芬 Xu Xingfen ◽  
曹益平 Cao Yiping ◽  
付光凯 Fu Guangkai ◽  
陈 澄 Chen Cheng ◽  
王亚品 Wang Yapin
Keyword(s):  
Three Dimensional ◽  
Matching Method ◽  
Dimensional Measurement ◽  
Pixel Matching ◽  
Three Dimensional Measurement ◽  
On Line

On-Line Three-Dimensional Measurement Method Based on Low Modulation Feature

2013 ◽  
Vol 40 (7) ◽  
pp. 0708006 ◽  
Author(s):  
彭旷 Peng Kuang ◽  
曹益平 Cao Yiping ◽  
武迎春 Wu Yingchun ◽  
郑素珍 Zheng Suzhen
Keyword(s):  
Measurement Method ◽  
Three Dimensional ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement ◽  
On Line

An On-Line Three-Dimensional Measurement Method of Composite Grating Projection Without Filtering

2018 ◽  
Vol 38 (11) ◽  
pp. 1112003
Author(s):  
彭旷 Peng Kuang ◽  
曹益平 Cao Yiping ◽  
武迎春 Wu Yingchun
Keyword(s):  
Measurement Method ◽  
Three Dimensional ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement ◽  
On Line

Three-Dimensional Measurement of the Hydrocyclone Flow Field Using V3V

2014 ◽  
Vol 595 ◽  
pp. 209-214
Author(s):  
Jian Gang Wang ◽  
Hua Lin Wang ◽  
Xu Duan
Keyword(s):  
Flow Field ◽  
Radial Velocity ◽  
Three Dimensional ◽  
Huge Amount ◽  
Matching Method ◽  
Dimensional Measurement ◽  
Index Matching ◽  
Two Component ◽  
Three Dimensional Measurement ◽  
Refractive Index Matching

The three dimensional three component (3D3C) flow field inside hydrocyclone was investigated using Volumetric 3-component Velocimetry (V3V). To improve the spatial resolution of the measurement, a refractive index matching method is used in the experiment. The three components of the velocity in the hydrocyclonic flow is measured, and the measurement produced huge amount of data, which enabled detailed analysis of the hydrocyclonic flow field. The tangential and axial is quasi-symmetric while the radial velocity is non-axisymmetric. The radial velocity is one order smaller in value than the other two component. Results show V3V with index matching is a robust method to the measurement of hydrocyclone flow field.

Three-Dimensional Measurement System Based on Line Laser

2013 ◽  
Vol 333-335 ◽  
pp. 32-36
Author(s):  
Le Wen Yu ◽  
Da Zhang ◽  
Yuan Sheng Zhang
Keyword(s):  
Mathematical Model ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Three Dimensional ◽  
Measurement Range ◽  
Laser Triangulation ◽  
Depth Information ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement ◽  
On Line

This paper puts forward a three-dimensional measurement system based on line laser, describing its operating principle. Extracted the light stripes center by image processing technology, and establishing mathematical model, detecting the depth information by the method of laser triangulation, and reconstructed the three-dimensional form of object. The experimental results indicate that measurement accuracy less than ±0.03mm when the measurement range between 0mm to 10mm.

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