Sihan Shao (邵思涵)

I am a Ph.D. student at FAU ECLIPSE Lab, working with Prof. Philipp Pelz. My research focuses on computational imaging in X-ray and electron microscopy, particularly in tomography and ptychography.

In my free time, I enjoy running, swimming, and sauna.

Email  /  CV  /  GitHub  /  LinkedIn

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Education

  • 2025 - present: Ph.D. in computational microscopy, FAU, Germany.
  • 2022 - 2024: M.Sc. in Electronics and Nanotechnology (major) and Machine Learning (minor), Aalto, Finland.
  • 2018 - 2022: B.Sc. in Opto-Electronics Information Science and Engineering, CUST, China.
  • Research

    I'm interested in computational imaging, computer vision, machine learning, and optimization.

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    Rim-Integrated Bluetooth Antenna for Smart Watches with Full-Metallic Structure


    Ali Kourani, Sihan Shao, Mohamed Raanen, Jan Bergman, Rasmus Luomaniemi, Jari Holopainen
    European Conference on Antennas and Propagation 2025, 2024
    paper / code /

    This paper explores the design, manufacturing, and a prototype measurement of a Bluetooth antenna integrated into the metallic rim of a smartwatch.

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    Neural Dispersive Hologram for Computational Submillimeter-wave Imaging


    Sihan Shao, advised by Prof. Zachary Taylor and D.Sc. Aleksi Tamminen.
    Master's Thesis, 2024
    paper / code /

    Developed a multi-wavelength wave propagation simulation using PyTorch, co-optimized a sub-millimeter imaging system’s hardware and neural networks, introduced a surrogate gradient method for optimizing quantized holograms, and validated the system with real measurements.

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    Quantized THz Diffractive Optics Design via Automatic Differentiation


    Sihan Shao, Aleksi Tamminen, Samu-Ville Pälli, Shanuka Gamaethige, Zachary Taylor
    International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2024
    paper / code /

    We explored the angular spectrum method (ASM) with automatic differentiation to optimize highly quantized diffractive optical elements (DOEs) for terahertz applications, facilitating precise control over radiation modulation while accounting for practical manufacturing limitations of 3D printer.

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    Harnessing Frequency Diversity for Improved Holographic Imaging Systems


    Shanuka Gamaethige, Samu-Ville Pälli, Aleksi Tamminen, Sihan Shao, Zachary Taylor, Marlene Bonmann, Tomas Bryllert, Jan Stake, Duncan A. Robertson
    International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2024
    paper /

    The study examines how frequency diversity over time in a 340 GHz FMCW radar system with a dispersive hologram enhances target imaging and discrimination by capturing more detailed spatial information.

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    SAR Ship Detection from Complex Background Based on Dynamic Shrinkage Attention Mechanism


    Sihan Shao, Haoran Li, Shifeng Wang
    2021 SAR in Big Data Era conference (BIGSARDATA), 2021
    paper /

    We developed a SAR ship detection method addressing challenges like speckle noise and complex backgrounds using a feature-level denoising approach called dynamic shrinkage attention.

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    Soft Thresholding Attention Network for Adaptive Feature Denoising in SAR Ship Detection


    Rui Wang, Sihan Shao, Mengyu An, Jiayi Li, Shifeng Wang & Xiping Xu
    IEEE Access, 2021
    paper / code /

    Proposed a feature-level denoising methodology for synthetic aperture radar ship detection, leveraging soft thresholding and attention mechanisms, which enhanced detection precision across several neural network models.

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    Lidar Sensor-Based Object Recognition Using Machine Learning


    Rui Wang, Mengyu An, Sihan Shao, Mingyang Yu, Shifeng Wang & Xiping Xu
    Journal of Russian Laser Research, 2021
    paper /

    We developed a Lidar-based data collection system and applied filtering, clustering, PCA, and SVM techniques to improve the classification efficiency and accuracy of pedestrians and vehicles in point cloud data.




    Projects

    These include coursework, thesis projects and unpublished research work.

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    Image Deblurring with Neural Networks Using Fourier Optics


    Tampere Fourier Optics Course Project
    2024-12-06
    code / slides /

    I simulated the optical blur caused by a camera lens with chromatic aberrations and depth-dependent point spread functions (PSFs), and created an image deblurring system by building a dataset and training a neural network.

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    Design of Vivaldi Array Antenna


    Aalto ELEC-E4740 - Antennas Workshop D
    2023-09-16
    slides /

    With Guo Wei and Zhenhan Wang. Designed and manufactured a 4-Way Wilkinson Power Divider and Vivaldi array antenna with CST.

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    A 1.5 GHz Doppler Radar


    Aalto ELEC-E4440 - Microwave Engineering Workshop
    2023-05-23
    slides /

    With Yifan Yu. Designed and manufactured 1.5 GHz Doppler Radar with filters, mixer, oscillaor and amplifier.


    Design and source code from Jon Barron's website