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Adaptive Image Content-Based Exposure Control for Scanning Applications in Radiography

Abstract

I-ImaS (Intelligent Imaging Sensors) is a European project which has designed and developed a new adaptive X-ray imaging system using on-line exposure control, to create locally optimized images. The I-ImaS system allows for real-time image analysis during acquisition, thus enabling real-time exposure adjustment. This adaptive imaging system has the potential of creating images with optimal information within a given dose constraint and to acquire optimally exposed images of objects with variable density during one scan. In this paper we present the control system and results from initial tests on mammographic and encephalographic images. Furthermore, algorithms for visualization of the resulting images, consisting of unevenly exposed image regions, are developed and tested. The preliminary results show that the same image quality can be achieved at 30-70% lower dose using the I-ImaS system compared to conventional mammography systems.

Category

Academic chapter/article/Conference paper

Language

English

Author(s)

  • Helene Schulerud
  • Jens T Thielemann
  • Trine Kirkhus
  • Kristin Kaspersen
  • Joar Martin Østby
  • Marinos G. Metaxas
  • Gary J. Royle
  • Jennifer Griffiths
  • Emily Cook
  • Colin Esbrand
  • Silvia Pani
  • Christian Venanzi
  • Paul F. van der Stelt
  • Gang Li
  • Renato Turchetta
  • Andrea Fant
  • Sergios Theodoridis
  • Harris Georgiou
  • Geoff Hall
  • Matthew Noy
  • John Jones
  • James D.G. Leaver
  • Frixos A. Triantis
  • Asimakis Asimidis
  • Nikos Manthos
  • Renata Longo
  • Anna Bergamaschi
  • Robert D. Speller

Affiliation

  • SINTEF Digital / Smart Sensor Systems
  • SINTEF Digital / Connectivity Technologies and Platforms
  • University College London
  • University of Trieste
  • University of Amsterdam
  • CCLRC Rutherford Appleton Laboratory
  • National Technical University of Athens
  • Imperial College London
  • University of Ioannina

Year

2007

Publisher

Springer

Book

Advanced Concepts for Intelligent Vision Systems. 9th International Conference, ACIVS 2007, Delft, The Netherlands, August 28-31, 2007. Proceedings

Issue

.

ISBN

9783540746065

Page(s)

543 - 552

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