An optical tomography system measures the light scattered by an object as a function of spatial coordinates and as a function of the illumination angle. The measured signals are digitally processed to produce a 3D image of the object. In this paper we describe how we can learn the shape of an object by constructing a neural network that models the optical system and training the network to match the experimentally measured data. The variables of the trained network yield the image of the unknown object at the end of training phase.
 Ulugbek, Papadopoulos, Shoreh, Goy, Vonesh, Unser, Psaltis, “A Learning Approach to Optical Tomography” Optica, May 2015.
Demetri Psaltis, "Learning from examples in optical tomography
(Conference Presentation)," Proc. SPIE 9718, Quantitative Phase Imaging II, 97181Z (Presented at SPIE BiOS: February 16, 2016; Published: 27 April 2016); https://doi.org/10.1117/12.2212785.4848767833001.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for most presentations.
Search our growing collection of more than 26,000 conference presentations, including many plenaries and keynotes.