scholarly journals High-speed and high-efficiency three-dimensional shape measurement based on Gray-coded light

2020 ◽  
Vol 8 (6) ◽  
pp. 819 ◽  
Author(s):  
Zhoujie Wu ◽  
Wenbo Guo ◽  
Yueyang Li ◽  
Yihang Liu ◽  
Qican Zhang
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Three Dimensional ◽  
Shape Measurement ◽  
Dimensional Shape ◽  
Three Dimensional Shape

Multiaperture Connection Method for Three-Dimensional Mesasurement Based on Quaternion

2012 ◽  
Vol 217-219 ◽  
pp. 2736-2739
Author(s):  
Peng Zheng ◽  
Lin Na Zhang ◽  
Feng Xia Zhao
Keyword(s):  
High Efficiency ◽  
Three Dimensional ◽  
Mathematic Model ◽  
Shape Measurement ◽  
Relative Location ◽  
Projection System ◽  
Connection Method ◽  
Dimensional Shape ◽  
Computational Simplicity ◽  
Three Dimensional Shape

A novel multiaperture connection method for three-dimensional shape measurement is presented. The principle of multiaperture method is to obtain subapertures relative location and orientation by measuring the object from different subapertures, and afterwards connecting them together. Rrotation and transformation of subapertures are the key problems to realize multiaperture connection. In order to improve calculability and efficiency of the connection algorithm, a new connection method using quaternion is proposed. The mathematic model of multiaperture connection associated with our proposed method is discussed, and the experimental measurement on the basis of digital grating projection system is carried out to demonstrate the validity of this suggested method. Compared with the conventional connection method, this method offers with such advantages as computational simplicity, high efficiency and reasonable accuracy.

GOBO projection-based high-speed three-dimensional shape measurement

2016 ◽  
Author(s):  
Stefan Heist ◽  
Peter Lutzke ◽  
Ingo Schmidt ◽  
Patrick Dietrich ◽  
Peter Kühmstedt ◽  
...  
Keyword(s):  
High Speed ◽  
Three Dimensional ◽  
Shape Measurement ◽  
Dimensional Shape ◽  
Three Dimensional Shape
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