Real-time compressed imaging of scattering volumes

Ohad Menashe, Alexander Bronstein

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose a method and a prototype imaging system for real-time reconstruction of volumetric piecewise-smooth scattering media. The volume is illuminated by a sequence of structured binary patterns emitted from a fan beam projector, and the scattered light is collected by a two-dimensional sensor, thus creating an under-complete set of compressed measurements. We show a fixed-complexity and latency reconstruction algorithm capable of estimating the scattering coefficients in real-time. We also show a simple greedy algorithm for learning the optimal illumination patterns. Our results demonstrate faithful reconstruction from highly compressed measurements. Furthermore, a method for compressed registration of the measured volume to a known template is presented, showing excellent alignment with just a single projection. Though our prototype system operates in visible light, the presented methodology is suitable for fast x-ray scattering imaging, in particular in real-time vascular medical imaging.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Image Processing, ICIP 2014
Pages1322-1326
Number of pages5
ISBN (Electronic)9781479957514
DOIs
StatePublished - 28 Jan 2014
Externally publishedYes

Publication series

Name2014 IEEE International Conference on Image Processing, ICIP 2014

Keywords

  • compressive sensing
  • scattering tomography
  • sparse coding
  • structured light
  • volumetric reconstruction

All Science Journal Classification (ASJC) codes

  • Computer Vision and Pattern Recognition

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