Wang Lihui Professor

2010.10 - 2014.03, Department of Information Physics and Computing, Graduate School of Information Science and Technology, The University of Tokyo (Japan), Ph.D Degree (Supervisor: Prof. Masatoshi Ishikawa)

2009.10 - 2010.08, Japanese Language, Preparatory School for Chinese Students to Japan 

2007.09 - 2009.07, Department of Pattern Recognition and Intelligent System, School of Information Science and Engineering, Northeastern University (China), Master Degree 

2003.09 - 2007.07, Automation, School of Electrical Engineering, Shenyang University of Technology (China), Bachelor Degree

2024.04 - now, Professor, Soochow University, China

2019.08 - 2024.03, Professor of Engineering, Guangdong Academy of Sciences, China

2018.04 - 2019.07, Project Assistant Professor,  The University of Tokyo, Japan

2014.04 - 2018.03, Project Researcher,  The University of Tokyo, Japan

Lihui Wang is a professor at Soochow University, China. He received his Ph.D. degree from the University of Tokyo, Japan. He worked as a project assistant professor and project researcher at the University of Tokyo, Japan till 2019, and then as a professor of engineering at the Guangdong Academy of Sciences, China until 2024. He is a senior member of the IEEE, SPIE, Optical Society of America (Optica), and Chinese Optical Society (COS). His research was endowed with a Special Prize from ACM SIGGRAPH, Innovative Technologies, and a Sponsor Award from the Digital Content Association of Japan. His research interests include adaptive optics, high-speed machine vision, interactive display, dynamic projection mapping, and the Opto-Electro-Mechanical system design and its applications.

1 Active Vision/主动视觉

1-1 Variable Focus Lens/可变焦液体透镜

In order to change focus with traditional solid lenses, which have fixed optical properties, two or more lenses have to be jointly moved mechanically. In contrast, a variable focus lens can dynamically control its focal length by only using a single lens element. Liquid-filled variable focus lenses are based on the physical deformation of refractive surfaces, which changes their curvature. 

We proposed a novel variable focus lens with a large optical aperture. The lens consists of two chambers separated by a membrane. The chambers were infused with two different liquids characterized by their similar density but different refractive indices. Thus its deformation was in the interface between the two liquids, and it acted as a refractive surface due to the difference in refractive index of these liquids. If one fluid was made to flow into and out of its chamber, while the other was locked, the lens could shift its power dynamically by means of a syringe pump.

Reference/ 参考

1. Zenghong Duan, Lihui Wang*, Zhi Li, Jian Fu, Susheng Fu, Boqian Chen, Yuxun Chen, and Yong Zhao, “Dynamic performance of a membrane-based variable focus lens with a large aperture,” Appl. Opt. 62, 4609-4617 (2023)[DOI:10.1364/AO.486278]

2. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Paraxial ray solution for liquid-filled variable focus lenses, Japanese Journal of Applied Physics, Volume 56, Number 12, 122501 (2017)[DOI:10.7567/JJAP.56.122501]

3. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, An improved low-optical-power variable focus lens with a large aperture, Optics Express, Vol.22, Issue 16, pp. 19448-19456 (2014)[DOI:10.1364/OE.22.019448]

4. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Variable-focus lens with 30 mm optical aperture based on liquid-membranes-liquid structure, Applied Physics Letters, Vol.102, 131111 (2013)[DOI:10.1063/1.4800603]

1-2 Active Visual Tracking/主动视觉追踪

在追踪具有高度非线性轨迹的高速随机运动目标时，传统光电主动视觉系统存在目标丢失、视觉追踪失效的问题。课题组通过搭建了一套毫秒级光电主动视觉系统。采用光电云台结构、感兴趣区域提取、并行计算、高速运动目标追踪算法，实现响应时间≤2ms毫秒级的目标跟踪。

Reference/参考

1. Jiaqi Li, Lin Li, Lihui Wang*, Lei LI, Shaoyong Li, and Masatoshi Ishikawa, Adaptive milliseconds tracking and zooming optics based on a high-speed gaze controller and liquid lenses, Optics Express, Vol.32, Issue 2, pp. 2257-2270 (2024)  [DOI:10.1364/OE.512003]

2. Ruimin Cao, Jian Fu, Hui Yang, Lihui Wang*, and Masatoshi Ishikawa, “Robust optical axis control of monocular active gazing based on pan-tilt mirrors for high dynamic targets,” Optics Express 29, 40214-40230 (2021) [DOI: 10.1364/OE.439083]
   

3 High-Speed 3D & Depth Imaging/成像

A large open aperture in an optical system can capture high-resolution images but yields a shallow depth of field. In order to keep the high-resolution and enlarge the DOF at the same time, back-and-forth movement of the lens should be driven by the rack and pinion motion of a motor.

However, continual forward and reverse rotation is a high-power-consumption task, because positive and negative current are used alternately to control the motor, which quickly triggers a safety stop to prevent overheating. Moreover, it is quite difficult to achieve high-speed responses in such conditions.

Reference/参考

1. Huayu Cheng, Lihui Wang*, Yuan He, , High-speed all-in-focus 3D imaging technology based on the liquid lens focus scanning, SPIE/COS Photonics Asia (Beijing, 2023.10.16) / (Oral 12767-11) doi: https://doi.org/10.1117/12.2686779

2. Lihui Wang, Jianjiang Cui, Satoshi Tabata, Masatoshi Ishikawa, Low-cost, readily available 3D microscopy imaging system with variable focus spinner, Optics Express, Vol.26, Issue 23, pp. 30576-30587 (2018).[DOI:10.1364/OE.26.030576] 

4 High-Speed 3D Projection Mapping/显示

Projection mapping (PM) is attractive as a fundamental technology for the advancement of various subjects, such as media art, entertainment, and augmented reality. However, conventional projectors have a shallow depth of field (DOF); therefore, sharp images are only visible in the limited depth range. In the case of dynamic projection mapping (DPM), which can project images on the surface of the moving objects, the shallow DOF limits the permissible motion of the object, because the projected images become blurred when the object is outside the DOF.

Our laboratories have developed a high-speed focal tracking projection system, which includes the technologies of high-speed vision, high-speed projector, and high-speed variable focus optics. In this system, the variation of the object’s distance and posture was captured using the high-speed vision technology that served as immediate feedback to the liquid lens and high-speed projector. As a result, the focal distance is compensated, and the projected images are updated in real-time to fit the moving object. Therefore, a well-focused image projection was achieved even when the motion involved large depth range movement.

This system could ensure that the projected images were sharp and clear at variable distances, while the object was moving dynamically in a large three-dimensional area. Hence, this approach can be effectively applied to applications such as Volume Slicing Display. Furthermore, it can turn any physical surface into an interactive display, and enable the manipulation of their appearance to provide detailed information. Our system provides the essential technology for expanding such applications.

The following three awards were given to the project “High-speed focal tracking projection system based on liquid lens”.

1. ACM SIGGRAPH Special Prize, (Association for Computing Machinery)

2. Innovative Technologies 2019, (Digital Content Association of Japan)

3. Innovative Technologies 2019, Sponsor Award (CGWORLD) 2019, (Digital Content Association of Japan)

Reference/ 参考

1. Lihui Wang*, Satoshi Tabata, Hongjin Xu, Yunpu Hu, Yoshihiro Watanabe, and Masatoshi Ishikawa, Dynamic depth-of-field projection mapping method based on a variable focus lens and visual feedback, Optics Express, 31(3), pp. 3945-3953 (2023) [DOI:10.1364/OE.478416]

2. Lihui Wang, Hongjin Xu, Satoshi Tabata, Yunpu Hu, Yoshihiro Watanabe, and Masatoshi Ishikawa: High-Speed Focal Tracking Projection Based on Liquid Lens, ACM SIGGRAPH 2020 Emerging Technologies (SIGGRAPH ’20) (Virtual Event, USA, 2020.8.24-28) [DOI: 10.1145/3388534.3408333]

3. Lihui Wang, Hongjin Xu, Yunpu Hu, Satoshi Tabata, Masatoshi Ishikawa, Dynamic Depth-of-Field Projection for 3D Projection Mapping, ACM CHI Conference on Human Factors in Computing Systems (CHI’19) (Glasgow, Scotland, UK. 2019.05.05-09) [DOI: 10.1145/3290607.3313246]

4. Lihui Wang, Yunpu Hu, Hongjin Xu, Masatoshi Ishikawa, Dynamic focal tracker display, SPIE Photonics West 2019 (San Francisco, California, USA. 2019.02.07)/ (Oral Session) [DOI: 10.1117/12.2506958]

5 3D Augmented Reality Head-Up-Display / 三维增强现实车载抬头显示器

Head-Up-Display (HUD) enables a driver to view information with his head positioned “up” and looking forward, instead of angled down looking at lower instruments. By adding the Augmented Reality technology, targets, like people and cars, can be marked to alarm to the drivers to avoid the potential accidents.

Traditional 2D AR HUD projects information messages at a certain distance away from the driver. It asks a driver to observe the projection along the optical axis at a certain point. When the driver moves his head, a miss-matching projection occurs between the projected data and the target in the real world. 

In this 3D AR HUD technology, a 3D virtual display can be projected in front of the driver. AR messages will be dynamically projected according to the 3D locations of the targets. In our 3D HUD, a virtual display is projected into a three-dimensional world, so there will be no mismatch when the driver moves.

The following demos were recorded by two cameras, which were placed at different places. When the camera was placed along the optical axis, 2D and 3D markers were all perfectly matched. When the camera was placed at an angle to the optical axis, a mismatch was found in 2D HUD, but 3D HUD was still well matched.

This work was conducted by a collaborate research project with Ishikawa  Laboratory and Konica Minolta Inc..

6 Smart Actuator and sensor/软体驱动器和传感器

触觉感知和交互作为人-机交互的主要方式之一，其通常需要人工设备具备良好的触觉感知能力。为丰富人工设备所能感知的触觉信息，基于混合感知机理的触觉传感器近年来受到了广泛关注。然而，对于可穿戴或柔性人工设备而言，开发具有简单结构、易制备、成本低、功耗低、易于维护和集成的触觉传感器仍然是一项艰巨挑战。

在此背景下研究团队提出了一种新型的摩擦电-光电混合触觉传感器，其采用模块化分体式结构，包括两个单元：基于单电极摩擦电纳米发电机设计的摩擦电单元，用于接收外部触觉刺激；以及基于可变焦液体透镜结构的光电单元，用于将触觉刺激转化为光电信号。两个单元均采用单腔体结构，可轻松实现对单元零部件的拆卸与更换。此外，摩擦电单元可根据其输出信号控制光电单元内部所嵌光源的开/关行为，从而降低传感单元功耗，提高触觉响应速度。光电单元具有优越的电磁干扰抗性，使得传感器能够准确、定量地感知接触力。通过开展感知性能测试实验，表现出响应时间短（～9 ms）、输出线性度高（R2≈0.9952）、耐久性和稳定性好等特点。基于上述特点，通过进一步设计-开展文字键入、图形绘制、音乐演奏等触觉交互实验，展示了本传感器在触觉交互任务中的实用性，进而说明其在人-机交互设备领域中具有广阔的应用前景。

Reference/参考

1. Hui Yang, Tianzhao Bu*, Wenbo Liu, Jiaqi Liu, Yunzhi Ling, Meixia Wu, Weirui Liu, Changan Wang*, Xifeng Gao*, Lihui Wang*, A novel triboelectric-optical hybrid tactile sensor for human-machine tactile interaction, Nano Energy, 125, pp. 109592 (2024)  [DOI:10.1016/j.nanoen.2024.109592] (IF=17.6)

2. Ronghua Hu, Hui Yang, Lihui Wang*, and Longfei Fan, Flexible optical tactile sensor based on a liquid-membrane lens structure, Applied Optics, 62(26), 6952-6960 (2023) [DOI:10.1364/AO.496741](IF=1.905)

3. Hui Yang, Jiaqi Liu, Wenbo Liu, Weirui Liu, Zilong Deng, Yunzhi Ling, Changan Wang, Meixia Wu, Lihui Wang*, and Li Wen*, Compliant Grasping Control for a Tactile Self-Sensing Soft Gripper, Soft Robotics, (2023)  [DOI:10.1089/soro.2022.0221] (IF=7.784)

   
   

Media and others （媒体报道等）

1. Dynamic Projection Mapping（动态光雕投影）

1) ITmedia News. 液体レンズを用いた高速焦点追従投影システム[https://dip-labs.com/news/20210128-01/] (2021.01) (日本語)
译：ITmedia News，基于液体的动态光雕投影系统。

2) 中国科技网/科技日报. “液体透镜带来光学镜头革命”  [http://www.stdaily.com/index/kejixinwen/2019-11/21/content_817911.shtml?from=singlemessage](2019.11) (in Chinese)

3) 日刊工業新聞. “動く物体に絵を投影できるプロジェクション技術、どんな用途に使う”[https://newswitch.jp/p/20672?fbclid=IwAR3MP-srPICwf7SsFN333tQQ-9pA-Jddmu1eq8ElD61jKqIMw6nge9yeGrU] (2020.01) (in Japanese)
译：日刊工业新闻。可在移动物体表面绘画的光雕投影技术，潜在用途是？

2. Variable Focus Lens（可变焦液体镜头）

1) テレビ東京ワールドビジネスサテライトトレンドたまご [オートフォーカスの老眼鏡!?]  [https://txbiz.tv-tokyo.co.jp/wbs/trend_tamago/post_124134/] (2017.01) (in Japanese)
译：东京电视台，全球财经卫视Trend Tamago专题，自动对焦老花眼眼镜！

3. 3D AR Head-Up-Display for ADAS Automotive（车载三维抬头显示器）

1) Konica Minolta Release. “Konica Minolta Develops the World’s First* Automotive 3D Augmented Reality Head-up Display” [https://www.konicaminolta.com/newsroom/2017/0227_01_01.html]. (2017.02)
译：柯尼卡美能达，世界首发车载三维增强现实抬头显示器

2) コニカミノルタニュースリリース.“コニカミノルタ 世界初*の車載用3D 拡張現実ヘッドアップディスプレイを開発” [https://www.konicaminolta.com/jp-ja/newsroom/2017/0113_01_01.html]. (2017.01) (in Japanese)
译：柯尼卡美能达，世界首发车载三维增强现实抬头显示器

3) 日本経済新聞. “車載用3D拡張現実ヘッドアップディスプレーを開発” [https://www.nikkei.com/article/DGXLRSP433224_T10C17A1000000/].(2017.01) (in Japanese)
译：日本经济新闻，车载三维增强现实抬头显示器

1. Principles of Automatic Control

2. Machine Vision

3. Sensors and Measurement Technologies
   

- Journals (*corresponding author)

1. Hui Yang, Tianzhao Bu*, Wenbo Liu, Jiaqi Liu, Yunzhi Ling, Meixia Wu, Weirui Liu, Changan Wang*, Xifeng Gao*, Lihui Wang*, A novel triboelectric-optical hybrid tactile sensor for human-machine tactile interaction, Nano Energy, 125, pp. 109592 (2024)  [DOI:10.1016/j.nanoen.2024.109592] (IF=17.6)

2. Jiaqi Li, Lin Li, Lihui Wang*, Lei Li, Shaoyong Li, and Masatoshi Ishikawa, Adaptive milliseconds tracking and zooming optics based on a high-speed gaze controller and liquid lenses, Optics Express, 32(2), pp. 2257-2270 (2024)  [DOI:10.1364/OE.512003] (IF=3.833)

3. Shuangjiang Huang, Lihui Wang*, Yutao Huang, Yuan He, Shi Bai, Measurement method of virtual image distance for head-mounted display based on a variable-focus liquid lens, Applied Optics,(2024)(accepted) (IF=1.905)

4. Xiao Zhang, Lihui Wang*,Zhiwei Mou, Yiqi Cao, Yuan He,  High-speed eye-tracking based on a synchronized imaging mechanism by dual-ring infrared lighting source, Applied Optics,(2024)(accepted) (IF=1.905)

5. Shangen Tang, Lihui Wang*, Fengnian Song, and Shaoyong Li, Dynamic projection mapping for non-planar objects with a variable focus lens and visual feedback, Journal of the Optical Society of America A, 41(3), pp. 468-475 (2024) [DOI:10.1364/JOSAA.514287] (IF=1.999)

6. Hui Yang, Jiaqi Liu, Wenbo Liu, Weirui Liu, Zilong Deng, Yunzhi Ling, Changan Wang, Meixia Wu, Lihui Wang*, and Li Wen*, Compliant Grasping Control for a Tactile Self-Sensing Soft Gripper, Soft Robotics, (2023)  [DOI:10.1089/soro.2022.0221] (IF=7.784)

7. Ronghua Hu, Hui Yang, Lihui Wang*, and Longfei Fan, Flexible optical tactile sensor based on a liquid-membrane lens structure, Applied Optics,62(26), 6952-6960 (2023) [DOI:10.1364/AO.496741](IF=1.905)

8. Lin Li, Na Xie, Jiaqi Li, Jingyi Fu, Shu-bin Liu, Lihui Wang, Yuhai Li, and Lei Li*, Optofluidic zoom system with increased field of view and less chromatic aberration, Optics Express, (published) (2023) [DOI:10.1364/OE.498096] (IF=3.833)

9. Zenghong Duan, Lihui Wang*, Boqian Chen, Jian Fu, and Zhi Li, Analysis of the Dynamic Performance of a Membrane-based Variable-focus Lens with a Large Aperture, Applied Optics, 62(17), pp.4609-4617 (2023) [DOI:10.1364/AO.486278] (IF=1.905)

10. Lihui Wang*, Satoshi Tabata, Hongjin Xu, Yunpu Hu, Yoshihiro Watanabe, Masatoshi Ishikawa, Dynamic depth-of-field projection mapping method based on a variable focus lens and visual feedback, Optics Express, 31(3), pp. 3945-3953 (2023) [DOI:10.1364/OE.478416] (IF=3.833)

11. Hao Xu, Satoshi Tabata, Haowen Liang, Lihui Wang*, and Masatoshi Ishikawa: Accurate Measurement of Virtual Image Distance for Near-Eye Displays Based on Auto-Focusing, Applied Optics, 61, 9093-9098 (2022) [DOI: 10.1364/AO.472931] (IF=1.905)

12. Ruimin Cao, Hui Yang, Jianjiang Cui, Lina Hao, and Lihui Wang*, Situation Representation and Strategic Reasoning Method of Hybrid Game System Based on Modified Hybrid Stochastic Timed Petri Net, IEEE Systems Journal, 16(4), 6086-6096, 2022 [DOI: 10.1109/JSYST.2022.3189547] (IF=4.802)

13. Hui Yang, Wenbo Liu, Jiaqi Liu, Yunzhi Ling, Meixia Wu, Weirui Liu, Lihui Wang*, Liquid Lens-based Optical Tactile Sensor with a Touch-Sensing Separable Structure, Advanced Materials Interfaces, 2200674 (2022) [DOI: 10.1002/admi.202200674] (IF=6.389)

14. Yao Li, Lei Min, John H. Xin, Lihui Wang, Qinghua Wu, Longfei Fan*, Feng Gan, and Hui Yu, High-performance Fibrous Artificial Muscle Based on Reversible Shape Memory UHMWPE, Journal of Materials Research and Technology, 20, 7-17, 2022 [DOI: 10.1016/j.jmrt.2022.07.045] (IF=5.298)

15. Yuping Wang, Senwei Xie, Lihui Wang*, Hongjin Xu, Satoshi Tabata, Masatoshi Ishikawa. ARSlice: Head-Mounted Display Augmented with Dynamic Tracking and Projection, Journal of Computer Science and Technology 37(3), 666-679(2022) [DOI: 10.1007/s11390-022-2173-y] (IF=1.871)

16. Hui Yang, Jian Fu, Ruimin Cao, Jiaqi Liu and Lihui Wang*, “A Liquid Lens-based Optical Sensor for Tactile Sensing,” Smart Materials and Structures (2022) [DOI: 10.1088/1361-665x/ac4d64] (IF=4.131)

17. Ruimin Cao, Jian Fu, Hui Yang, Lihui Wang*, and Masatoshi Ishikawa, “Robust optical axis control of monocular active gazing based on pan-tilt mirrors for high dynamic targets,” Optics Express 29, 40214-40230 (2021) [DOI: 10.1364/OE.439083] (IF=3.833)

18. Hongjin Xu, Lihui Wang*, Satoshi Tabata, Yoshihiro Watanabe, and Masatoshi Ishikawa, Extended depth-of-field projection method using a high-speed projector with a synchronized oscillating variable-focus lens, Applied Optics, 60(13), pp. 3917-3924 (2021) [DOI: 10.1364/AO.419470] (IF=1.905)

19. Zhangxu Pan, Chan Guo, Xianchi Wang, Jiucheng Liu, Ruimin Cao, Yanfen Gong, Jiantai Wang, Ningyang Liu, Zhitao Chen, Lihui Wang, Masatoshi Ishikawa, Zheng Gong, Wafer-Scale Micro-LEDs Transferred onto an Adhesive Film for Planar and Flexible Displays, Advanced Materials Technologies, 2000549 (2020) [DOI: 10.1002/admt.202000549] (IF=7.848)

20. Chen Zhang, Jianjiang Cui, Lihui Wang, Hao Wang, Multi-focus Image Fusion and Depth Reconstruction, Journal of Electronic Imaging, 29(3), 033016 (2020) [DOI: 10.1117/1.JEI.29.3.033016] (IF=1.006)

21. Ruimin Cao, Lihui Wang, Lina Hao, Wenlin Chen, Junxiang Deng, A Decision-making Framework of Hybrid System based on Modified Hybrid Stochastic Timed Petri Net and Deep Learning, IEEE Systems Journal, 2020. [DOI: 10.1109/JSYST.2020.2983044] (IF=4.802)

22. Lihui Wang, Masatoshi Ishikawa, Dynamic response of elastomer-based liquid-filled variable focus lens, Sensors, 19(21), pp:4624  (2019) [DOI:10.3390/s19214624] (IF=3.847)

23. Lihui Wang, Hongjin Xu, Masatoshi Ishikawa, Solar energy-actuated back and forth optical mechanism, Applied Optics, 58(15), pp. E7-E11 (2019) [DOI:10.1364/AO.58.0000E7] (IF=1.905)

24. Lihui Wang, Jianjiang Cui, Satoshi Tabata, Masatoshi Ishikawa, Low-cost, readily available 3D microscopy imaging system with variable focus spinner, Optics Express, 26(23), pp. 30576-30587 (2018).[DOI:10.1364/OE.26.030576] (IF=3.833)

25. Lihui Wang, Tomohiko Hayakawa, Masatoshi Ishikawa, Dielectric-elastomer-based fabrication method for varifocal microlens array, Optics Express, 25(25), pp. 31708-31717 (2017)[DOI:10.1364/OE.25.031708] (IF=3.833)

26. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Paraxial ray solution for liquid-filled variable focus lenses, Japanese Journal of Applied Physics, 56(12), 122501 (2017)[DOI:10.7567/JJAP.56.122501] (IF=1.491)

27. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, An improved low-optical-power variable focus lens with a large aperture, Optics Express, 22(16), pp. 19448-19456 (2014)[DOI:10.1364/OE.22.019448] (IF=3.833)

28. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Variable-focus lens with 30 mm optical aperture based on liquid-membranes-liquid structure, Applied Physics Letters, 102(131111), (2013)[DOI:10.1063/1.4800603] (IF=3.971)

- Invited Speech

29. Lihui Wang, Research on a High-speed Active Vision Pose Perception Method for Dynamic Projection Mapping, 6th International Conference on Intelligent Robotics and Control Engineering (IRCE2023) (Jilin, 2023.08.04) / Invited

30. Lihui Wang, Dynamic Performance of the membrane-based variable focus lens, 12th Applied Optics and Photonics China (AOPC2023) (Beijing, 2023.07.26) / Invited

31. Lihui Wang, Dynamic Projection Mapping with High Speed Vision and a Variable Focus Lens, 2022 Optica Applied Industrial Optics (Ireland, 2022.07.25-27) / Invited

32. Lihui Wang, The 6th International Conference on Intelligent Robotics and Control Engineering (IRCE 2023), (Tianjin, 2022.09.25)/ Invited

33. Lihui Wang, Hongjin Xu, Satoshi Tabata, Yunpu Hu, Yoshihiro Watanabe, and Masatoshi Ishikawa. High-Speed Focal Tracking Projection Based on Liquid Lens. In Special Interest Group on Computer Graphics and Interactive Techniques Conference Emerging Technologies (SIGGRAPH ’20 Emerging Technologies), 2020.08.17, Virtual Event, USA. [DOI: 10.1145/3388534.3408333]

34. Lihui Wang, A large aperture variable focus lens and its application on the next generation of clinical optics, 2015 EMN Optoelectronics Meeting (Beijing, 2015.04.26) / Invited, pp. 195-196

- International Conference and Proceedings

35. Xiao Zhang, Lihui Wang*, Yuan He, Zhiwei Mou, Yiqi Cao, Milliseconds eye-tracking mechanism for high precision medical device, 21st IEEE MDBS-BHE’ Symposium 2023 (HongKong, 2023.12.20) / (Oral)

36. Huayu Cheng, Lihui Wang*, Satoshi Tabata, Yuan He, Yan Hu, Jiang Liu, A novel fundus imaging method based on a liquid lens focus scanning, 21st IEEE MDBS-BHE’ Symposium 2023 (HongKong, 2023.12.20) / (Oral)

37. Jiaqi Li, Lihui Wang*, Shaoyong Li, Lin Li, Lei Li, Active milliseconds zooming and tracking optics based on liquid lenses and a high-speed gaze controller, SPIE/COS Photonics Asia (Beijing, 2023.10.14) / (Oral 12765-4) doi: https://doi.org/10.1117/12.2686749

38. Ronghua Hu, Hui Yang, Lihui Wang*, Longfei Fan, Research on a flexible optical tactile sensor based on a liquid lens structure, SPIE/COS Photonics Asia (Beijing, 2023.10.15) / (Oral 12771-12) doi: https://doi.org/10.1117/12.2686776

39. Xiao Zhang, Lihui Wang*, Yuan He, Zhiwei Mou, Yiqi Cao, High-speed eye tracking based on a synchronized image acquisition mechanism by dual-ring infrared lighting source, SPIE/COS Photonics Asia (Beijing, 2023.10.15) / (Oral 12766-13) doi: https://doi.org/10.1117/12.2686717

40. Huayu Cheng, Lihui Wang*, Yuan He, , High-speed all-in-focus 3D imaging technology based on the liquid lens focus scanning, SPIE/COS Photonics Asia (Beijing, 2023.10.16) / (Oral 12767-11) doi: https://doi.org/10.1117/12.2686779

41. Shangen Tang, Lihui Wang*, Fengnian Song, Shaoyong Li, Dynamic projection mapping for non-planar objects with a variable focal lens,  SPIE/COS Photonics Asia (Beijing, 2023.10.16) / (Oral 12767-12) doi: https://doi.org/10.1117/12.2686766

42. Shuangjiang Huang, Lihui Wang*, Yuan He, Shi Bai, Measurement method of virtual image distance for near-eye display based on a variable-focus liquid lens, 12th Applied Optics and Photonics China (AOPC2023) (Beijing, 2023.07.25-26) / (Poster AOPC2023-09-022)

43. Huayu Cheng, Lihui Wang*, Yuan He, Yan Hu, Liu Jiang, High-speed all-in-focus 3D imaging method based on the liquid lens focus scanning, 12th Applied Optics and Photonics China (AOPC2023) (Beijing, 2023.07.25-26) / (Poster AOPC2023-09-020)

44. Xiao Zhang, Lihui Wang*, Yuan He, Zhiwei Mou, Yiqi Cao, High-speed eye tracking mechanism based on a synchronized image acquisition by dual-ring infrared lighting source, 12th Applied Optics and Photonics China (AOPC2023) (Beijing, 2023.07.25-26) / (Poster AOPC2023-09-021)

45. Shangen Tang, Lihui Wang*, Fengnian Song, Shaoyong Li, Dynamic projection mapping for non-planar objects with a variable focus lens, 12th Applied Optics and Photonics China (AOPC2023) (Beijing, 2023.07.25-26) / (Poster AOPC2023-06-007)

46. Jiaqi Li, Lihui Wang*, Lin Li, Shaoyong Li, Active milliseconds zooming and tracking optics based on liquid lenses and high-speed gaze control, 12th Applied Optics and Photonics China (AOPC2023) (Beijing,2023.07.25-26) / (Poster AOPC2023-09-023)

47. Jian Fu, Hui Yang, Ruimin Cao, Lihui Wang*, The Influence of Membrane Thickness on the Dynamic Response of Liquid Lens, Frontiers in Optics 2021 (FiO 2021)(Online Event. 2021.11.02)/ (Poster Session) JTu1A.131

48. Hui Yang, Jian Fu, Ruimin Cao, Lihui Wang*, An Optical Tactile Sensor with Liquid Lens Mechanism, Frontiers in Optics 2021 (FiO 2021)(Online Event. 2021.11.03)/ (Poster Session) JW7A.22

49. Ruimin Cao, Hui Yang, Jian Fu, Lihui Wang*, High-speed optical 3D active sensing method for high-dynamic targets in the large-field scene, Frontiers in Optics 2021 (FiO 2021)(Online Event. 2021.11.03)/ (Poster Session) JW7A.35

50. Lihui Wang, Satoshi Tabata, Hongjin Xu, Yunpu Hu, Yoshihiro Watanabe, and Masatoshi Ishikawa, Interactive Dynamic Extended Depth-of-Field Projection Mapping with Variable Focus Lens and Visual Feedback Control, International Conference on Display Technology 2021, (Beijing, May 31, 2020)

51. Jian Fu, Ruimin Cao, Lihui Wang*, The influence of the apodization function on the optical needle, Frontiers in Optics 2020 (FiO 2020)(Online Event. 2020.09.14-17)/ (Poster Session)

52. Ruimin Cao, Lihui Wang*, Jian Fu, Adaptive self-window-based optical information acquisition method for high dynamic target, Frontiers in Optics 2020 (FiO 2020)(Online Event. 2020.09.16)/ (Oral Session)

53. Lihui Wang, Satoshi Tabata, Hirotoshi Takeuchi, and Masatoshi Ishikawa: A study for accelerating the speed of all-in-focus image processing, SPIE Photonics West 2020 (San Francisco, 2020.2.5)/Proceedings of SPIE Vol. 11245, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVII; 112450U (2020) [DOI: 10.1117/12.2542686]

54. Hongjin Xu, Lihui Wang*, Satoshi Tabata, Yoshihiro Watanabe, and Masatoshi Ishikawa: An extended depth-of-field projection method using a high-speed projector with a synchronized oscillating variable focus lens, SPIE Photonics West 2020 (San Francisco, 2020.2.5)/Proceedings of SPIE Vol.11304 , Advances in Display Technologies X, 113040T (2020) [DOI: 10.1117/12.2542477]

55. Lihui Wang, Yunpu Hu, Hongjin Xu, Masatoshi Ishikawa, A method for passive, monocular distance measurement of virtual image in VR/AR, The IEEE International Conference on Computational Photography 2019 (ICCP 2019) (Tokyo, Japan. 2019.05.15)/ [link]

56. Lihui Wang, Hongjin Xu, Yunpu Hu, Satoshi Tabata, Masatoshi Ishikawa, Dynamic Depth-of-Field Projection for 3D Projection Mapping, ACM CHI Conference on Human Factors in Computing Systems (CHI’19) (Glasgow, Scotland, UK. 2019.05.05-09) [DIO: 10.1145/3290607.3313246]

57. Lihui Wang, Yunpu Hu, Hongjin Xu, Masatoshi Ishikawa, Dynamic focal tracker display, SPIE Photonics West 2019 (San Francisco, California, USA. 2019.02.07)/ (Oral Session) [DIO: 10.1117/12.2506958]

58. Lihui Wang, Hongjin Xu, Masatoshi Ishikawa, Optical Mechanism controlled by Shape Memory Alloy Spring, 11th International Conference on Optics-Photonics Design and Fabrication (ODF’18, Hiroshima), (Hiroshima, Japan. 2018.11.29)/ (Poster Session) [Paper, 29PSb-36]

59. Lihui Wang, Hongjin Xu, Masatoshi Ishikawa, Solar Energy Actuated Optical Mechanism, OSA Light, Energy and the Environment Congress, (Singapore. 2018.11.06)/ (Poster Session) [DIO:10.1364/FTS.2018.JT2A.11]

60. Lihui Wang, Jianjiang Cui, Satoshi Tabata, Masatoshi Ishikawa, Readily Available Varifocal Microscope Imaging System, 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Honolulu, Hawaii, USA. 2018.07.20)/ (Poster Session) [Paper, FrPoS-31.3]

61. Lihui Wang, Masatoshi Ishikawa, Investigation of the dynamic response performance for the liquid-filled variable focus lens, SPIE Photonics West 2018 (San Francisco, California, USA. 2018.01.31)/ (Poster Session) [DIO:10.1117/12.2288845]

62. Kenichi Murakami, Lihui Wang, Tomohiko Hayakawa, Taku Senoo, Masatoshi Ishikawa: Catching Robot Hand System in Dynamic Depth Variation with a Rotating Variable Focusing Unit, Frontiers in Optics 2017 (FiO 2017)(Washington DC, USA. 2017.9.19)/ (Poster Session) [DIO:10.1364/FIO.2017.JTu2A.52]

63. Lihui Wang, Tomohiko Hayakawa, Masatoshi Ishikawa, Depth of field extended imaging method based on intensification of time and spatial expansion, SPIE Smart Structures/NDE 2017(Portland, Oregon, USA. 2017.03.26)/ (Oral Session) [DIO:10.1117/12.2259891]

64. Lihui Wang, Tomohiko Hayakawa, Masatoshi Ishikawa, A fabrication method for variable focus micro lens array based on deformation of dielectric elastomer actuator, European Optical Society Bi-Annual Meeting (EOSAM) 2016 (Berlin, Germany. 2016.09.28)/ (Oral Session)

65. Tomohiko Hayakawa, Lihui Wang, Masatoshi Ishikawa, Three-dimensional scanning method based on deformation of a dielectric elastomer actuator, European Optical Society Bi-Annual Meeting (EOSAM) 2016 (Berlin, Germany. 2016.09.29)/ (Poster Session)

66. Tomohiko Hayakawa, Lihui Wang, Masatoshi Ishikawa, Dielectric elastomer-based laser beam pointing method with ultraviolet and visible wavelength , SPIE Photonics West 2016 (San Francisco, California, USA. 2016.02.17)/ (Poster Session) [DOI:10.1117/12.2212081]

67. Tomohiko Hayakawa, Lihui Wang, Masatoshi Ishikawa, A Novel Precise Laser Manipulation Method with Dielectric Elastomer, OSA’s 99th annual meeting, Frontiers in Optics 2015 (FiO 2015)(San Jose, California, USA. 2015.10.19)/ (Oral Session) [DOI:10.1364/FIO.2015.FM2G.5]

68. Lihui Wang, Alvaro Cassinelli, Hiromasa Oku, Masatoshi Ishikawa, A pair of diopter adjustable eyeglasses for presbyopia vision correction, SPIE Optics + Photonics 2014 (San Diego, California, USA, 2014.08.18) // Proc. of SPIE, Vol.9193, 91931G-1(Poster Session)[DOI:10.1117/12.2061659]

69. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Adaptive achromatic doublet design by double variable-focus lenses, SPIE Optics + Photonics 2014 (San Diego, California, USA, 2014.08.17-21) / [(Oral Session)][DOI:10.1117/12.2061203]

70. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, A Weak Power Enhanced Liquid-Membrane-Liquid Lens by a Pretension Elastic Membrane, OSA’s 97th annual meeting, Frontiers in Optics 2013/ Laser Science XXIX(FiO/LS 2013)(Orlando, Florida, USA, 2013.10.06-10)/ (Oral Session) [OSA Technical Digest FTu5F.5] [DOI: 10.1364/FIO.2013.FTu5F.5]

71. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, A solution of pre-tension membrane for improving the usability of liquid-membrane-liquid lens in its weak power area, 2nd EOS Conference on Optofluidics 2013 (Munich, Germany, 2013.05.13-15) / (Oral Session)

72. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, Development of variable-focal lens with liquid-membrane-liquid structure and 30mm optical aperture, SPIE Photonics West 2013 (San Francisco, California, USA, 2013.02.02-07) / (Oral Session) [SPIE Proceedings 8617-5] [DOI:10.1117/12.2005531]

73. Lihui Wang, Hiromasa Oku, Masatoshi Ishikawa, A Liquid Lens with Liquid-Membrane-Liquid Structure, OSA’s 96th annual meeting, Frontiers in Optics 2012/ Laser Science XXVIII(FiO/LS 2012)(Rochester, NewYork, USA, 2012.10.14-18)/ (Oral Session)[OSA Technical Digest FM3A.3][DOI:10.1364/FIO.2012.FM3A.3]

74. Cui Jianjiang, Shi Dayu, Wang Lihui, Chen Dali, Liu Feng, Design and Realization of Route Control System in Railway System Based on Simulation, Proceedings of the 2010 International Conference on Logistics Systems and Intelligent Management (ICLSIM 2010), 2010: 989-993. [DOI: 10.1109/ICLSIM.2010.5461103(EI Index:11291780)]

75. Cui Jianjiang, Wang Lihui, Sun Lei, Zhang Yaowen, Wang Guoren, A Method of Near-Infrared Image Acquisition Based on Image Quality Assessment, Proceedings of the 8th International Conference on Measurement and Control of Granular Materials (MCGM 2009), 2009: 509-512.

Academia Service 

• Senior Members of the IEEE, Optical Society of America (Optica), SPIE and Chinese Optical Society (COS)

• IEEE Intelligent Robotics and Control Engineering (IRCE) 2023/2024 Section Chair

• co-Editor for Photonics. Reviewer for Journals: Photonics Research, Optics Letters, Optics Express, Applied Optics, Journal of the Optical Society of America A, Laser & Photonics Reviews, IEEE International Symposium on Mixed and Augmented Reality (ISMAR), and so on.

Awards

• Best Organizing Award, IEEE IRCE The 8th International Conference on Intelligent Robotics and Control Engineering,2025

• Best Presentation Award, IEEE IRCE The 8th International Conference on Intelligent Robotics and Control Engineering,2025 (Student, Jiayu Wang)

• Innovative Technologies, Minister of Economy, Trade and Industry, Japan and Digital Content Association of Japan, 2019, Japan

• Sponsor Award (CGWORLD), Minister of Economy, Trade and Industry, Japan and Digital Content Association of Japan, 2019, Japan

• ACM SIGGRAPH Special Prize, ACM Special Interest Group on Computer Graphics, Association for Computing Machinery, 2019, USA

If you are interest, and belongs to the following codes, please feel free to connect me. 

    081200 Computer Science and Technology 

    085410 Artificial Intelligence 

    080200 Mechanical Engineering 

    085501 Mechanical Engineering

Chinese, Englifh and Japanese are available. 

————

Lihui Wang

Professor

School of Future Science and Engineering, 

Soochow University, Suzhou 215299, China

e-Mail: wanglihui@suda.edu.cn

web: https://web.suda.edu.cn/wanglihui_en/

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