Cristin-resultat-ID: 1274013
Sist endret: 23. mai 2017, 07:51
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

A scanning system for intelligent imaging: I-ImaS

  • R. Longo
  • A. Asimidis
  • D. Cavouras
  • C. Esbrand
  • A. Fant
  • P. Gasiorek
  • mfl.


Medical Imaging 2007: Physics of Medical Imaging
  • 9780819466280


SPIE - The International Society for Optics and Photonics
NVI-nivå 1


Proceedings of SPIE, the International Society for Optical Engineering
ISSN 0277-786X
e-ISSN 1996-756X
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2007
Hefte: Volume 6510
  • 9780819466280




Fagfelt (NPI)

Fagfelt: Elektronikk og kybernetikk
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse


A scanning system for intelligent imaging: I-ImaS


I-ImaS (Intelligent Imaging Sensors) is a European project aiming to produce adaptive x-ray imaging systems using Monolithic Active Pixel Sensors (MAPS) to create optimal diagnostic images. Initial systems concentrate on mammography and cephalography. The on-chip intelligence available to MAPS technology will allow real-time analysis of data during image acquisition, giving the capability to build a truly adaptive imaging system with the potential to create images with maximum diagnostic information within given dose constraints. In our system, the exposure in each image region is optimized and the beam intensity is a function not only of tissue thickness and attenuation, but also of local physical and statistical parameters found in the image itself. Using a linear array of detectors with on-chip intelligence, the system will perform an on-line analysis of the image during the scan and then will optimize the X-ray intensity in order to obtain the maximum diagnostic information from the region of interest while minimizing exposure of less important, or simply less dense, regions. This paper summarizes the testing of the sensors and their electronics carried out using synchrotron radiation, x-ray sources and optical measurements. The sensors are tiled to form a 1.5D linear array. These have been characterised and appropriate correction techniques formulated to take into account misalignments between individual sensors. Full testing of the mammography and cephalography I-ImaS prototypes is now underway and the system intelligence is constantly being upgraded through iterative testing in order to obtain the optimal algorithms and settings.  


R. Longo

  • Tilknyttet:
    ved Università degli Studi di Trieste

A. Asimidis

  • Tilknyttet:
    ved Panepistimion Ioanninon

D. Cavouras

  • Tilknyttet:
    ved Hellas

C. Esbrand

  • Tilknyttet:
    ved University College London

A. Fant

  • Tilknyttet:
    ved CCLRC Rutherford Appleton Laboratory
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Medical Imaging 2007: Physics of Medical Imaging.

Hsieh, Jiang; Flynn, Michael J.. 2007, SPIE - The International Society for Optics and Photonics. Vitenskapelig antologi/Konferanseserie
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