LinYark

Hi, there, I'm a Optical Engineering Ph.D. student in HUST, working with Prof. Shaoqun Zeng. My real name is Fengchen He (何丰郴).

My research interest is to simulate the imaging process of optical lens to correct the downstream focusing task. Dual-Pixel cameras are currently the focus of my research. Our team is exploring various possibilities for achieving high-resolution and large-field ophthalmic surgeries.

Passionate about the fields of programming, swimming, electronics, and photography. Crossed the Yangtze River multiple times.

Email  /  Github  /  知乎

profile photo
News

  • 07/2025: Our paper, "Simulating Dual-Pixel Images From Ray Tracing For Depth Estimation" is accepted by ICCV 2025.
  • 03/2025: I have shared a ray-traced Dual-Pixel simulator detailing how to simulate realistic Dual-Pixel images.
  • 07/2024: I maintain a repository dedicated to awesome Dual-Pixel camera technology.
  • 09/2023: I commenced my doctoral journey at HUST.
  • 03/2022: I work as an autofocus algorithm engineer at Xiaomi.

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    Education & Working

  • 09/2023 - now: Ph.D. in Optical Engineering, HUST, Wuhan, China.
  • 03/2022 - 09/2023: Autofocus engineer, Camera Department, Xiaomi, Shanghai, China.
  • 09/2019 - 03/2022: M.Sc. in Optical Engineering, NJUST, Nanjing, China.
  • 09/2015 - 06/2019: B.Sc. in Optical Engineering, NJUST, Nanjing, China.

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    Research

    I am conducting simulations of Dual-Pixel cameras and then applying them to various applications.

  • Computational Dual-Pixel cameras.
  • Optical imaging system.
  • Depth est, deblur, and so on.

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    		Simulating Dual-Pixel Images From Ray Tracing For Depth Estimation
    Fengchen He, Dayang Zhao, Hao Xu, Tingwei Quan, Shaoqun Zeng
    ICCV 2025. Paper (Arxiv) / Paper (PDF) / Github / Website

  • The ray-traced DP PSF simulator calculates the spatially varying DP PSF.
  • The pixel-wise DP image rendering module narrows the gap between simulated and real DP images.
  • Released a DP-depth paired real test set DP119, with an open lens structure and fixed focus.

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    Miscellanea

  • Peer review statement: I am honored to be invited to serve as a peer reviewer in the Dual-Pixel camera field. I will make every effort to complete the review within two weeks.

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    The website template is from Dr. John Barron and Dr. Xinge Yang.