Zhao Qi. Research: wavefront shaping, speckle imaging, computational imaging, and deep learning
Self introduction
A final-year Ph.D. student in Department of Biomedical Engineering, The Hong Kong Polytechnic University, expecting to graduate in August 2024.
Scientific research experiences in computational imaging and deep learning models for overcoming optical speckles in biological tissues and retrieving images from speckles, under the supervision of Assoc. Prof. Puxiang Lai (ORCID: 0000-0003-4811-2012).
Research papers mainly include the speckle-based cryptosystem for face recognition via deep learning (Advanced Science 2022, IF = 15.1), the parameter-free algorithm for iterative wavefront shaping (Optics Letters 2021, IF = 3.6), optical imaging through spatiotemporally decorrelated speckles via a generative adversarial network (In process), and delocalized information in optical speckles via deep learning-based study (In preparation).
Biography
PolyU (Doctor of Philosophy) 09/2020 – 08/2024
The Hong Kong Polytechnic University —— Department of Biomedical Engineering
Major: Biomedical Engineering (GPA: 3.49/4.30)
Research: Wavefront shaping, Speckle imaging, Computational imaging, Deep learning
Advisor: Assoc. Prof. Puxiang Lai
THU (Master of Science) 09/2017 – 08/2020
Tsinghua University —— Tsinghua-Berkeley Shenzhen Institute
Major: Data Science and Information Technology (GPA: 3.71/4.00)
Research: Flexible sensors, Micro-electromechanical Systems
Advisor: Assoc. Prof. Xiang Qian, Prof. Xiaohao Wang, Prof. Zheng You, Prof. Liwei Lin (UC Berkeley)
NWPU (Bachelor of Engineering) 09/2013 – 06/2017
Northwestern Polytechnical University —— Honors College & School of Electronics and Information
Major: Electronic Information Engineering
Research: Image recognition, Deep learning
Advisor: Prof. Mingyi He
First or co-first authored papers
1. Deep-Tissue Optics: Technological Development and Applications
Chinese Journal of Lasers 2024 (IF = 2.57) DOI: 10.3788/CJL231318
2. Delocalized information in optical speckles: a learning-based study
In preparation 2024
3. Speckle transformer: classification through scattering media with limited information
In preparation 2024
4. Learning-based super-resolution interpolation for sub-Nyquist sampled laser speckles
Photonics Research 2023 (IF = 7.3) DOI: 10.1364/PRJ.472512
5. Extended neural network generalizability for high-fidelity imaging from spatiotemporally decorrelated speckles
In process 2023
6. DeepSLM: Speckle-licensed modulation via deep adversarial learning for authorized optical encryption
In process 2023
7. Speckle-Based Optical Cryptosystem and its Application for Human Face Recognition via Deep Learning
Advanced Science 2022 (IF = 15.1) DOI: 10.1002/advs.202202407
8. Optimal efficiency of focusing diffused light through scattering media with iterative wavefront shaping
APL Photonics 2022 (IF = 5.6) DOI: 10.1063/5.0085943
9. Parameter-free optimization algorithm for iterative wavefront shaping
Optics Letters 2021 (IF = 3.6) DOI: 10.1364/OL.427215
10. Speckle-based optical cryptosystem for encrypted face recognition
Chinese Patent 2021 ZL202111273688.7
Non-first authored papers
1. High-security learning-based optical encryption assisted by disordered metasurface
Nature Communications 2024 (IF = 14.9) DOI: 10.1038/s41467-024-46946-w
2. Single-shot recognition of orbital angular momentum from speckles with spatially multiplexed point detection
In process 2023
3. Wavefront shaping: A versatile tool to conquer multiple scattering in multidisciplinary fields
The Innovation 2022 (IF = 23.6) DOI: 10.1016/j.xinn.2022.100292
4. Accelerating deep learning with high energy efficiency: From microchip to physical systems
The Innovation 2022 (IF = 23.6) DOI: 10.1016/j.xinn.2022.100252
5. Long-distance pattern projection through an unfixed multimode fiber with natural evolution strategy-based wavefront shaping
Optics Express 2022 (IF = 3.8) DOI: 10.1364/OE.462275
6. Dynamic mutation enhanced particle swarm optimization for optical wavefront shaping
Optics Express 2022 (IF = 3.8) DOI: 10.1364/OE.425615
Academic Conferences
1. Learning-based study on spatially dispersed information in optical speckles
The WACBE World Congress on Bioengineering 2024, Hong Kong, China (Poster)
2. Delocalized information in optical speckles and its learning-based demonstration
The Advanced Photonics Forum 2024, Shenzhen, China (Poster)
3. Learning-based study on spatially dispersed imaging from optical speckles
Visable Light Communication and Optical Computing 2023, Shenzhen, China (Poster)
4. Spatially dispersed information retrieved from optical speckles: a learning-based study
PhotoniX Forum 2023, Hangzhou, China (Poster)
5. Speckle-based Optical Cryptosystem for Face Recognition
SPIE Photonics West 2023, San Francisco, USA (Oral) DOI: 10.1117/12.2645932
6. Encrypting face recognition using optical speckles
IEEE TENCON 2022, Hong Kong, China (Oral) DOI: 10.1109/TENCON55691.2022.9977544
7. Integration of genetic and bat algorithms towards a parameter-free optimization scheme in iterative wavefront shaping
SPIE Photonics Asia 2021, Online, China (Oral) DOI: 10.1117/12.2601210
8. Innovative heuristic algorithm in wavefront shaping - parameter-free algorithm
International Conference on Biomedical Health Informatics 2021, Online, Korea (Oral)
9. Flexible humidity sensor based on electrochemically polymerized polypyrrole
IEEE Sensors 2019 (Montreal, Canada) DOI: 10.1109/SENSORS43011.2019.8956740
Internship
Student Ambassador - PolyU BME (06/2023 – 06/2023)
Served as a Student Ambassador during Student Ambassador for Research Postgraduate Summer School 2023.
Responsibilities included organizing and guiding the itinerary for visiting the PolyU campus, and introducing the facilities in labs and cutting-edge research conducted by faculty members of BME.
Teaching assistant - PolyU BME (02/2022 – 06/2022)
Received the Best Teaching Assistant Award for exceptional contributions to the course “Biomedical Engineering Research and Design Studies II - Engineer for the Community”.
Roles encompassed grading examination papers, reviewing assignments, assisting in laboratory experiment instruction, and supporting students throughout the course.
Intern engineer - OPPO Shenzhen (07/2018 - 08/2018)
Completed an internship at OPPO, a leading Chinese electronics corporation specializing in smartphones, headquartered in Guangdong.
Focused on enhancing the photography capabilities through the research of advanced deep learning-based image recognition and segmentation algorithms, contributing to high-quality products to global consumers.
Intern engineer - He Ying Shenzhen (07/2018 - 07/2018)
Engaged in an intern position at He Ying, a pioneering startup located in Shenzhen, known for its collaboration with JEEP to develop co-branded Android smartwatches.
Played a crucial role in gathering and analyzing user experience feedback from pre-release smartwatch models, providing insightful recommendations to enhance product quality and user satisfaction.
Extracurricular Activities
Student Union of Shenzhen International Graduate School, Tsinghua University (09/2017 - 10/2018)
Operated the official WeChat account, published over 100 posts that collectively received more than 50,000 views.
Served as the group leader for a four-student team to Chaozhou, Guangdong (22/07/2018 - 27/22/2018). Conducted comprehensive investigations into the local ceramics, electronics, and tea industries, resulting in highly praised assessments.
Student Union of Honors College, Northwestern Polytechnical University (10/2013 - 12/2015)
Operated the official WeChat and Weibo accounts, published over 300 posts that collectively received more than 100,000 views.
Contributed to the welcoming ceremony for the new students (10/2018) by serving as one of the hosts.