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Adaptive image content-based exposure control for scanning applications in radiography

Schulerud, H, Thielemann, J, Kirkhus, T, Kaspersen, K, Østby, JM, Metaxas, MG, Royle, GJ, Griffiths, J, Cook, E, Esbrand, C , Pani, S, Venanzi, C, Speller, RD, Van Der Stelt, PF, Gang, L, Turchetta, R, Fant, A, Theodoridis, S, Georgiou, H, Hall, G, Noy, M, Jones, J, Leaver, J, Triantis, F, Asimidis, A, Manthos, N, Pani, S, Longo, R and Bergamaschi, A (2007) Adaptive image content-based exposure control for scanning applications in radiography Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 4678 L. pp. 543-552.

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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. © Springer-Verlag Berlin Heidelberg 2007.

Item Type: Article
Authors :
Schulerud, H
Thielemann, J
Kirkhus, T
Kaspersen, K
Østby, JM
Metaxas, MG
Royle, GJ
Griffiths, J
Cook, E
Esbrand, C
Pani, S
Venanzi, C
Speller, RD
Van Der Stelt, PF
Gang, L
Turchetta, R
Fant, A
Theodoridis, S
Georgiou, H
Hall, G
Noy, M
Jones, J
Leaver, J
Triantis, F
Asimidis, A
Manthos, N
Pani, S
Longo, R
Bergamaschi, A
Date : 2007
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:09
Last Modified : 31 Oct 2017 14:42

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