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Your search keyword '"Huang, Zesheng"' showing total 15 results
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15 results on '"Huang, Zesheng"'

1. Structure-Aware Parametric Representations for Time-Resolved Light Transport

Author

Royo, Diego, Huang, Zesheng, Liang, Yun, Song, Boyan, Muñoz, Adolfo, Gutierrez, Diego, and Marco, Julio

Subjects
Electrical Engineering and Systems Science - Signal Processing
Abstract

Time-resolved illumination provides rich spatio-temporal information for applications such as accurate depth sensing or hidden geometry reconstruction, becoming a useful asset for prototyping and as input for data-driven approaches. However, time-resolved illumination measurements are high-dimensional and have a low signal-to-noise ratio, hampering their applicability in real scenarios. We propose a novel method to compactly represent time-resolved illumination using mixtures of exponentially-modified Gaussians that are robust to noise and preserve structural information. Our method yields representations two orders of magnitude smaller than discretized data, providing consistent results in applications such as hidden scene reconstruction and depth estimation, and quantitative improvements over previous approaches.

Published
2023
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13. Highly Regio‐, Diastereo‐, and Enantioselective Assembly of Azepino[2,3‐b]indoles viaPalladium‐Catalyzed [4 + 3] Cycloaddition†.

Author

Yang, Wu‐Lin, Huang, Zesheng, Liu, Yang‐Zi, Yu, Xingxin, and Deng, Wei‐Ping

Subjects
*RING formation (Chemistry), *BEARINGS (Machinery), *INDOLINE, *PALLADIUM, *CATALYSIS
Abstract

Summary of main observation and conclusion: A palladium‐catalyzed asymmetric [4 + 3] cycloaddition of trimethylenemethanes and indoline‐derived aza‐dienes has been developed. The potential [3 + 2] side pathway was completely suppressed in the process. This protocol provides an efficient access to azepino[2,3‐b]indoles bearing two vicinal stereocenters in generally excellent diastereo‐ and enantioselectivities (up to > 20 : 1 dr, 99% ee). [ABSTRACT FROM AUTHOR]

Published
2020
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14. Highly Regio‐, Diastereo‐, and Enantioselective Assembly of Azepino[2,3‐b]indoles viaPalladium‐Catalyzed [4 + 3] Cycloaddition†.

Author

Yang, Wu‐Lin, Huang, Zesheng, Liu, Yang‐Zi, Yu, Xingxin, and Deng, Wei‐Ping

Subjects
RING formation (Chemistry), BEARINGS (Machinery), INDOLINE, PALLADIUM, CATALYSIS
Abstract

Summary of main observation and conclusion: A palladium‐catalyzed asymmetric [4 + 3] cycloaddition of trimethylenemethanes and indoline‐derived aza‐dienes has been developed. The potential [3 + 2] side pathway was completely suppressed in the process. This protocol provides an efficient access to azepino[2,3‐b]indoles bearing two vicinal stereocenters in generally excellent diastereo‐ and enantioselectivities (up to > 20 : 1 dr, 99% ee). [ABSTRACT FROM AUTHOR]

Published
2020
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15. Palladium‐Catalyzed Asymmetric [4+3] Cyclization of Trimethylenemethane: Regio‐, Diastereo‐, and Enantioselective Construction of Benzofuro[3,2‐b]azepine Skeletons.

Author

Liu, Yang‐Zi, Wang, Zhongao, Huang, Zesheng, Zheng, Xing, Yang, Wu‐Lin, and Deng, Wei‐Ping

Subjects
ORGANIC synthesis, CONSTRUCTION, STEREOSELECTIVE reactions, AZEPINES
Abstract

The palladium‐catalyzed asymmetric [4+3] cyclization of trimethylenemethane donors with benzofuran‐derived azadienes furnishes chiral benzofuro[3,2‐b]azepine frameworks in high yields (up to 98 %) with exclusive regioselectivities and excellent stereoselectivities (up to >20:1 d.r. >99 % ee). This catalytic asymmetric [4+3] cyclization of Pd‐trimethylenemethane can enrich the arsenal of Pd‐TMM reactions in organic synthesis. In addition, this strategy provides an alternative approach to chiral azepines by a transition‐metal‐catalyzed asymmetric [4+3] cyclization. [ABSTRACT FROM AUTHOR]

Published
2020
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