News

Research

A selection of our past and present research projects. More projects will be added soon.

The Single-Shot 3D Movie Camera

3D videos of fast scenes with high data quality (5 associated publications)

Synthetic Wavelength Holography

Imaging through scattering media or around corners at high resolution (5 associated publications)

VR Eye Tracking using Deflectometry

Exploiting deflectometric information for high precision eye tracking (1 associated publication)

Flying Triangulation

A handheld motion robust 3D scanner (20 associated publications)

High-quality 3D imaging with Commodity Devices

3D imaging methods accessible to a broad audience (7 associated publications)

High-Resolution Time-of-Flight imaging

A novel approach to Time-of-Flight imaging based on Multi-Wavelength Interferometry (7 associated publications)

Compressive ghost imaging through scattering media with deep learning

Leverage DL for computational ghost imaging through scattering media (1 associated publication)

Intensity Interferometry-based 3D imaging

Depth sensing using thermal light sources (2 associated publications)

Selected Publications

see all publications by year>>

Fast Non-Line-of-Sight Imaging with High-Resolution and Wide Field of View using Synthetic Wavelength Holography
F. Willomitzer, P. Rangarajan, F. Li, M. Balaji, M. Christensen, O. Cossairt.
Nature Communications 12, 6647 (2021)

Exploiting Wavelength Diversity for High Resolution Time-of-Flight 3D Imaging
F. Li*, F. Willomitzer*, M. Balaji, P. Rangarajan, O. Cossairt (* joint first authors).
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2021
[Video (YouTube)]

SkinScan: Low-Cost 3D-Scanning for Dermatologic Diagnosis and Documentation
M. A. Nau, F. Schiffers, Y. Li, B. Xu, A. Maier, J. Tumblin, M. Walton, A. K. Katsaggelos, F. Willomitzer, O. Cossairt
2021 IEEE International Conference on Image Processing (ICIP), 2021

Intensity Interferometry-based 3D Imaging
F. Wagner, F. Schiffers, F. Willomitzer, O. Cossairt, A.Velten.
Optics Express 29(4), 4733-4745, 2021

Hand-Guided Qualitative Deflectometry with a Mobile Device
F. Willomitzer, C-K. Yeh, V. Gupta, W. Spies, F. Schiffers, A. Katsaggelos, M. Walton, O. Cossairt.
Optics Express 28(7), 9027-9038, 2020

WISHED: Wavefront Imaging Sensor with High resolution and Depth ranging
Y. Wu*, F. Li*, F. Willomitzer, A. Veeraraghavan, O. Cossairt (* joint first authors).
IEEE International Conference on Computational Photography (ICCP), 2020
[Video (YouTube)]

Compressive Ghost Imaging through Scattering Media with Deep Learning
F. Li*, M. Zhao*, Z. Tian, F. Willomitzer, O. Cossairt (* joint first authors).
Optics Express 28(12), 17395-17408

SH-ToF: Micro Resolution Time-of-Flight Imaging with Superheterodyne Interferometry
F. Li, F. Willomitzer, P. Rangarajan, A. Velten, M. Gupta, O. Cossairt.
IEEE International Conference on Computational Photography (ICCP), 2018

Single-shot 3D motion picture camera with a dense point cloud
F. Willomitzer, G. Häusler.
Optics Express 25(19), 23451-23464, 2017

Single-shot 3D sensing with improved data density
F. Willomitzer, S. Ettl, C. Faber, G. Häusler.
Applied Optics, 54(3), 408-417, 2015

Consequences of EEG electrode position error on ultimate beamformer source reconstruction performance
S. S. Dalal, S. Rampp, F. Willomitzer, S. Ettl.
Frontiers in Neuroscience, 8(42), 1-7, 2014

PhD Thesis: Single-Shot 3D Sensing Close to Physical Limits and Information Limits
F. Willomitzer.
Dissertation, University Erlangen-Nuremberg, Published as book in the series “Springer Theses” in 2019

Teaching

Prof. Willomitzer is currently teaching the following courses:

COMP_SCI 331: Introduction to Computational Photography
See course website for more information
Next term taught: Winter 2022

ELEC_ENG 420: Digital Image Processing
See course website for more information
Last term taught: Winter 2021 (co-taught with Prof. Oliver Cossairt)

ELEC_ENG 395, 495: Computational Photography Seminar
Last term taught: Summer 2021

Invited Talks

See also Publications>> and ‘Research’-section for recordings of contributed conference talks.

Synthetic Wavelength Holography – Imaging around Corners and through Scattering Media at the Physical Space-Bandwidth Limit
Physics Colloquium Talk Series, University Erlangen-Nuremberg, Germany, 2021
[Video] , [Announcement and Abstract] , [Slides on Request]

Fundamental Limits in Computational 3D Imaging – From Novel 3D Cameras to Looking around Corners
Beyond the Patterns Talk Series, University Erlangen-Nuremberg, Germany, 2021
[Video (YouTube)] , [Announcement and Abstract] , [Slides on Request]

The Role of Fundamental Limits in 3D Imaging Systems: From Looking around Corners to Fast 3D Cameras
Stanford Center for Image System Engineering (SCIEN), Stanford University, US, 2020
[Announcement and Abstract 1] [2] , [Slides on Request]

Fast, Precise, Ubiquitous: Novel Sensor Concepts for 3D Imaging and Imaging through Scattering Media
Information Photonics 2020 (IP’20), Taipei, Taiwan, 2020
[Abstract] , [Slides on Request]

Three-Dimensional Non-Line-of-Sight Imaging with High Resolution using Superheterodyne Remote Digital Holography
Joint conference of the European Optical Society (EOS) and the German Society for Applied Optics (DGaO), Darmstadt, Germany, 2019
[Abstract] , [Slides on Request]

Optical 3D Imaging for Art and Cultural Heritage
Adventures in Seeing Works of Art: A COSI Workshop in Deflectometry, University of Chicago, US, 2019
[Slides on Request]

Exploiting the Physical Limits and Information Limits of Single-Shot 3D Sensing
OSA Incubator: Small Eyes & Smart Minds, Optical Society of America (OSA), Washington D.C., US, 2017
[Incubator Info] , [Slides on Request]

The 3D Motion Picture Camera - About Single-Shot, High Resolution 3D Imaging
IEEE International Conference on Computational Photography (ICCP), Northwestern University, US, 2016
[Conf. Proceedings] , [Slides on Request]

3D-Messtechnik 4.0 – Innovatives Highspeed-Messprinzip für 3D-Objekte
Infoteam Forum für innovative Anwendungsszenarien, Dortmund, Germany, 2016
[Slides on Request]

Join Us!

We are always looking for motivated students interested in pursuing a research project or thesis in our lab. Prospective students should have a background in Optics, Computer Science, Image and Signal Processing, or similar disciplines.
Please contact Prof. Willomitzer if you are interested.

Collaborations

Past and Present

Contact

Florian Willomitzer

florian [dot] willomitzer [at] northwestern [dot] edu

Northwestern University
Department of Electrical and Computer Engineering
Seeley Mudd Building, Rm 3511
2233 Tech Drive, Evanston, IL 60208