Last update: 09/2022

Xiaochun Liu 刘笑纯

Bring bicycles for the mind.

Not a real doctor for patients.
However, in a previous life at the University of Wisconsin Madison, I led a research team on a camera that can look around corners. Then, published our idea as the first author @ Nature, with multiply coauthors' @ Nature Communications, TPAMI, CVPR, ICCV.

Now, I am working on novel camera technologies @ Apple
If you want to work with me, feel free to drop me a line.

Email  /  CV  /  LinkedIn  /  Google Scholar




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Non-Line-of-Sight Imaging using Phasor Field Virtual Wave Optics
Xiaochun Liu, Ibon Guillen, Marco La Manna, Ji Hyun Nam, Syed Azer Reza, Toan Huu Le, Adrian Jarabo, Diego Gutierrez, Andreas Velten
Nature, 2019     (Representative paper)
Project / Paper / Code and Dataset / Video1 / Video2 / bibtex

Make a virtual camera to look around the corner using knowledge from classical optics.

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Phasor Field Diffraction Based Reconstruction for Fast Non-Line-of-Sight Imaging Systems
Xiaochun Liu, Sebastian Bauer, Andreas Velten
Nature Communication, 2020     (Representative paper)
Project / Paper / Reviews / Code / Data archive / bibtex

A fast and memory efficient algorithm which allows seeing around the corner with SPAD array non-confocal acquisition in real-time.

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Low-latency time-of-flight non-line-of-sight imaging at 5 frames per second
Ji Hyun Nam, Eric Brandt, Sebastian Bauer, Xiaochun Liu, Eftychios Sifakis, Marco Renna, Alberto Tosi, Andreas Velten
Nature Communication, 2021     (Representative paper)
Project / Paper / bibtex

We present a real time Non-line-of-sight imaging using 16 x 1 SPAD array.

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The role of Wigner Distribution Function in Non-Line-of-Sight Imaging
Xiaochun Liu, Andreas Velten
ICCP, 2020     (Representative paper)
Project / Paper / bibtex

Using Wigner Distribution Function (WDF) to explain non-line-of-sight imaging.

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Non-Line-of-Sight Phasor Field Camera
Xiaochun Liu
Thesis, 2022    
Thesis / bibtex

Making the world a better place.

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Physics to the Rescue Deep Non-line-of-sight Reconstruction for High-speed Imaging
Fangzhou Mu, Sicheng Mo, Jiayong Peng, Xiaochun Liu, Ji Hyun Nam, Siddeshwar Raghavan, Andreas Velten, Yin Li
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2022    
Project / Paper / Code

We present a novel deep model that incorporates physics priors into a neural network for high-quality and robust NLOS reconstruction.

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FPGA Accelerator for Real-Time Non-Line-of-Sight Imaging
Zhengpeng Liao, Deyang Jiang, Xiaochun Liu, Andreas Velten, Yajun Ha, Xin Lou
IEEE Transactions on Circuits and Systems I, 2021    
Paper / bibtex

A FPGA based real time NLOS imaging platform.

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Ring and Radius Sampling Based Phasor Field Diffraction Algorithm for Non-Line-of-Sight Reconstruction
Deyang Jiang, Xiaochun Liu, Jianwen Luo, Zhengpeng Liao, Andreas Velten, Xin Lou
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2021    
Paper / bibtex

A faster NLOS imaging diffraction reconstruction algorithm using ring radius symmetric property.
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Virtual light transport matrices for non-line-of-sight imaging
Julio Marco, Adrian Jarabo, Ji Hyun Nam, Xiaochun Liu, Miguel Angel Cosculluela, Andreas Velten, Diego Gutierrez
ICCV, 2021     (Oral)
Project / Paper / bibtex

We introduce a framework of light transport matrix for Non-line-of-sight imaging.

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On the Effect of Reflectance on Phasor Field Non-Line-of-Sight Imaging
Ibon Guillen, Xiaochun Liu, Andreas Velten, Diego Gutierrez, Adrian Jarabo
ICASSP, 2020
Paper / bibtex

Look different materials around the corner using wave optics and explain why they look different.

Analysis of Feature Visibility in Non-Line-of-Sight Measurements
Xiaochun Liu, Sebastian Bauer, Andreas Velten
CVPR, 2019
Project / Paper / Supplement / Video / Poster / bibtex

We present a spatial-frequency analysis and show missing features because of limited measurements.


Conference talk
Services
  • Reviewer 
    • Nature Publishing Group :  Light Science & Applications, Scientific Reports
    • IEEE :  IEEE Transactions on Computational Imaging
    • OSA :  Optics Express, Optics Letters
    • SPIE :  Advanced Photonics
    • Cambridge University Press :  APSIPA Transactions on Signal and Information Processing


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