Generalized Imaging

Non-Line-of-Sight Reconstruction using Efficient Transient Rendering

Julian Iseringhausen, Matthias B. Hullin
arXiv:1809.08044 [cs.GR], Sept. 2018, 2018.

In this paper, we present an efficient renderer for three-bounce indirect transient light transport, and use it to reconstruct objects around corners to unprecedented accuracy.

4D Imaging through Spray-On Optics

Julian Iseringhausen, Bastian Goldl├╝cke, Nina Pesheva, Stanimir Iliev, Alexander Wender, Martin Fuchs, Matthias B. Hullin
ACM Transactions on Graphics 36(4) (Proc. SIGGRAPH), 35:1--35:11, 2017.

Raindrops on a window heavily distort the view of the scene. We show that a fully calibrated 4D light field can be recovered from a single photograph taken under such adverse conditions.

Snapshot Difference Imaging using Correlation Time-of-Flight Sensors

Clara Callenberg, Felix Heide, Gordon Wetzstein, Matthias Hullin
ACM Transactions on Graphics 36(6) (Proc. SIGGRAPH Asia), 220:1--220:10, 2017.

Computation of image differences is a key operation in computational imaging. We use time-of-flight sensors to perform this operation in a single shot, and discover some remarkable features.

Doppler Time-of-Flight Imaging

Felix Heide, Wolfgang Heidrich, Matthias B. Hullin, Gordon Wetzstein
ACM Transactions on Graphics (Proc. SIGGRAPH), 34 (4), 2015.

A new computational imaging system that captures metric radial velocity information per pixel -- think of a huge array of traffic speed guns that use light instead of radar.

Low-Budget Transient Imaging using Photonic Mixer Devices

Felix Heide*, Matthias B. Hullin*, James Gregson, Wolfgang Heidrich (* joint first authors)
ACM Transactions on Graphics (Proc. SIGGRAPH), 32 (4), 2013.

A computational method for capturing videos of light in flight using consumer-grade imaging hardware.