Xiaochun Liu

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

	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.
	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.
	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.
	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.
	Non-Line-of-Sight Phasor Field Camera Xiaochun Liu Thesis, 2022 Thesis / bibtex Making the world a better place.
	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.
	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.
	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.
	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.
	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

Virtual light transport matrices for non-line-of-sight imaging, International Conference on Computer Vision, 2021
The role of Wigner Distribution Function in Non-Line-of-Sight Imaging, IEEE International Conference on Computational Photography, 2020
On the Effect of Reflectance on Phasor Field Non-Line-of-Sight Imaging, IEEE International Conference on Acoustics, Speech, and Signal Processing, 2020
A line-of-sight approach for non-line-of-sight imaging, SPIE Defense Commercial Sensing, 2019
Non-line-of-sight 3D imaging, SPIE Commercial Scientific Sensing and Imaging, 2018

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

News press

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