Visualization 2: Graphics processing unit–assisted real-time three-dimensional measurement using speckle-embedded fringe

Measurement result of a static box and a moving hand Originally published in Applied Optics on 01 August 2015 (ao-54-22-6865

Visualization 1: Graphics processing unit–assisted real-time three-dimensional measurement using speckle-embedded fringe

Measurement result of a shaking paper Originally published in Applied Optics on 01 August 2015 (ao-54-22-6865

Media 2: High-speed three-dimensional profilometry for multiple objects with complex shapes

Originally published in Optics Express on 13 August 2012 (oe-20-17-19493

Media 1: High-speed three-dimensional profilometry for multiple objects with complex shapes

Originally published in Optics Express on 13 August 2012 (oe-20-17-19493

The dynamic 3D measurement results of a moving Voltaire plaster model.mp4

The dynamic 3D measurement results of a moving Voltaire plaster mode

The dynamic 3D measurement results of a rotating bow girl model.mp4

The dynamic 3D measurement results of a rotating bow girl mod

Supplementary document for Deep learning based fringe-pattern analysis with model uncertainty quantification - 5528336.pdf

Supplement

Development of Highly Enantio- and <i>Z</i>‑Selective Grubbs Catalysts via Controllable C–H Bond Activation

Asymmetric olefin metathesis is a powerful strategy for stereocontrolled synthesis that allows the formation of chiral elements in conjunction with carbon–carbon double bonds. Here, we report a new series of cyclometalated stereogenic-at-Ru catalysts that enable highly efficient asymmetric ring opening/cross-metathesis (AROCM) and asymmetric ring-closing metathesis (ARCM) reactions. Single enantiomers of these catalysts with either right-handed or left-handed configurations at the Ru center can be easily accessed via highly stereoselective C–H bond activation-based cyclometalation. Right-handed chiral Ru catalysts enabled the Z- and enantioselective AROCM of a wide range of norbornenes and terminal alkenes, generating densely functionalized cyclopentanes with excellent stereo- and enantioselectivities (99:1 Z/E, up to 99% ee). Left-handed chiral Ru catalysts enabled the facile ARCM of sterically unhindered, all-terminal prochiral trienes, which had not been achieved by previous Ru catalysts, providing simple cyclic ethers and amides with tertiary or quaternary carbon stereocenters with excellent enantioselectivities (up to 99% ee)

Visualization 2: Real-time 3-D shape measurement with composite phase-shifting fringes and multi-view system

Measurement result of a moving palm Originally published in Optics Express on 05 September 2016 (oe-24-18-20253

Microscopic 3D measurement of shiny surfaces based on a multi-frequency phase-shifting scheme

Microscopic fringe projection profilometry is a powerful 3D measurement technique with a theoretical measurement accuracy better than one micron provided that the measured targets can be imaged with good fringe visibility. However, practically, the 3D shape of the measured surface can hardly be fully reconstructed due to the defocus of the dense fringes and complex surface reflexivity characteristics, which lead to low fringe quality and intensity saturation. To address this problem, we propose to calculate phases of these highlighted areas from a subset of the fringe sequence which is not subjected to the intensity saturation. By using the proposed multi-frequency phase-shifting scheme, the integrity of the 3D surface reconstruction can be significantly improved. The ultimate phase maps obtained from unsaturated intensities are used to achieve high-accuracy 3D recovering of shiny surfaces based on a phase stereo matching method. Experimental results on different metal surfaces show that our approach is able to retrieve the complete morphology of shiny surfaces with high accuracy and fidelity