scholarly journals Multi-polarization fringe projection imaging for high dynamic range objects

2014 ◽  
Vol 22 (8) ◽  
pp. 10064 ◽  
Author(s):  
Basel Salahieh ◽  
Zhenyue Chen ◽  
Jeffrey J. Rodriguez ◽  
Rongguang Liang
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Fringe Projection ◽  
High Dynamic

scholarly journals Adaptive Binocular Fringe Dynamic Projection Method for High Dynamic Range Measurement

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 4023 ◽  
Author(s):  
Changzhi Yu ◽  
Fang Ji ◽  
Junpeng Xue ◽  
Yajun Wang
Keyword(s):  
Projection Method ◽  
Dynamic Range ◽  
Three Dimensional ◽  
High Dynamic Range ◽  
Fringe Projection ◽  
Range Measurement ◽  
Optimal Projection ◽  
Three Dimensional Measurement ◽  
High Dynamic ◽  
Adaptively Adjusting

Three-dimensional measurement with fringe projection sensor has been commonly researched. However, the measurement accuracy and efficiency of most fringe projection sensors are still seriously affected by image saturation and the non-linear effects of the projector. In order to solve the challenge, in conjunction with the advantages of stereo vision technology and fringe projection technology, an adaptive binocular fringe dynamic projection method is proposed. The proposed method can avoid image saturation by adaptively adjusting the projection intensity. Firstly, the flowchart of the proposed method is explained. Then, an adaptive optimal projection intensity method based on multi-threshold segmentation is introduced to adjust the projection illumination. Finally, the mapping relationship of binocular saturation point and projection point is established by binocular transformation and left camera–projector mapping. Experiments demonstrate that the proposed method can achieve higher accuracy for high dynamic range measurement.

scholarly journals Real-time high dynamic range 3D measurement using fringe projection

2020 ◽  
Vol 28 (17) ◽  
pp. 24363 ◽  
Author(s):  
Liang Zhang ◽  
Qian Chen ◽  
Chao Zuo ◽  
Shijie Feng
Keyword(s):  
Real Time ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Fringe Projection ◽  
3D Measurement ◽  
High Dynamic
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