Haoyu Wei

512 Chow Yei Ching Building, The University of Hong Kong

I’m a senior engineer at TCL Corporate Research (HK), specializing in the intersection of optics and AI. I obtained my Ph.D. from HKU Imaging Systems Lab and WeLight, advised by Prof. Edmund Y. Lam and Prof. Evan Peng.

I am broadly interested in computational photography, display, and 3D vision. My doctoral research revolves around co-designing optical systems (like diffractive optical elements and metalenses) with deep learning for high-performance vision. I also specialize in optical numerical simulations to model diffractive wave propagations.

Before joining HKU, I completed my master’s degree in Computer Science at Northwestern University, where I worked in Prof. Oliver Cossairt’s Comp Photo Lab. My work spanned CT reconstruction, lightfield holographic rendering, and 3D surface profiling.

Off-duty: Marathon runner, hiker, gym-goer, and cat-lover.

News

Jul 31, 2025	I am remotely presenting our paper in COSI 18-21 Aug, 2025, Seattle, on “Enabling Wide Field-of-View Imaging via Jointly Learned Off-aperture Encoding”.
Jul 17, 2025	I am presenting our recent TPAMI paper in ICCP 21-23 Jul 2025, Toronto, on “Learned Off-aperture Encoding for Wide Field-of-view RGBD Imaging”.
Jul 12, 2025	I am presenting a poster in ICBS 13-15 Jul 2025, Beijing, on learned optics for snapshot wide-angle and hyperspectral imaging. I am honored to visit and present in the Precision Instruments Department at Tsinghua University on 16 Jul.
Jul 25, 2024	I am presenting in AOPC 2024, Beijing, on diffraction sampling methods.
Aug 14, 2023	I am presenting in COSI 2023, Boston, on “Learned Large FoV Imaging with Efficient Shift-Variant Wave Optics Modeling”.

Selected publications

Learned Off-aperture Encoding for Wide Field-of-view RGBD Imaging

Haoyu Wei, Xin Liu, Yuhui Liu, Qiang Fu, Wolfgang Heidrich, Edmund Y Lam, and Yifan (Evan) Peng

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), Aug 2025

Abs DOI Bib Website

@article{wei2025learned,
  author = {Wei, Haoyu and Liu, Xin and Liu, Yuhui and Fu, Qiang and Heidrich, Wolfgang and Lam, Edmund Y and Peng, Yifan (Evan)},
  title = {Learned Off-aperture Encoding for Wide Field-of-view RGBD Imaging},
  journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)},
  year = {2025},
  month = aug,
  volume = {},
  number = {01},
  pages = {1-13},
  issn = {1939-3539},
  doi = {10.1109/TPAMI.2025.3598340},
}

Modeling Off-Axis Diffraction with the Least-Sampling Angular Spectrum Method

(Optica Top downloads in Jul and Aug)

Haoyu Wei, Xin Liu, Xiang Hao, Edmund Y Lam, and Yifan Peng

Optica, Jul 2023

Abs DOI Bib Code Website

@article{wei2023modeling,
  title = {Modeling Off-Axis Diffraction with the Least-Sampling Angular Spectrum Method <p style="color:Red;">(Optica Top downloads in Jul and Aug)</p>},
  author = {Wei, Haoyu and Liu, Xin and Hao, Xiang and Lam, Edmund Y and Peng, Yifan},
  journal = {Optica},
  volume = {10},
  number = {7},
  pages = {959--962},
  publisher = {Optica Publishing Group},
  year = {2023},
  month = jul,
  doi = {10.1364/OPTICA.490223},
  paper = {https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-7-959&id=535343},
}

2-Step Sparse-View CT Reconstruction with a Domain-Specific Perceptual Network

Haoyu Wei, Florian Schiffers, Tobias Würfl, Daming Shen, Daniel Kim, Aggelos K Katsaggelos, and Oliver Cossairt

arXiv, Jul 2020

Abs arXiv Bib Code

Reconstruction of Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) images using highly undersampled data.
@article{wei:2020:2, title = {2-Step Sparse-View CT Reconstruction with a Domain-Specific Perceptual Network}, author = {Wei, Haoyu and Schiffers, Florian and W{\"u}rfl, Tobias and Shen, Daming and Kim, Daniel and Katsaggelos, Aggelos K and Cossairt, Oliver}, journal = {arXiv}, year = {2020}, }