Spatial analysis of dead pixels

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Brettschneider, Julia ; Thornby, John Albert ; Nichols, Thomas E. ; Kendall, W. S. (2014)
  • Publisher: University of Warwick. Centre for Research in Statistical Methodology
  • Subject: QA76

Considering a rectangular panel of pixels arranged in a grid, we introduce a taxonomy of damages based on spatial arrangements of dysfunctional pixels. We detect these different types of damage in experimental data obtained from a detector from an X-ray machine used for additive layer manufacturing object visualisation. We model the spatial distribution of dysfunctional pixels using point pattern analysis including\ud intensity estimation and checking for CSR. As a practical application, we propose a protocol for performance monitoring for detector panels.
  • References (6)

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    [2] Angela Cantatore and Pavel Muller. Introduction to computed tomography. Technical report, DTU Mechanical Engineering, 2011.

    [3] Sung Nok Chiu, Dietrich Stoyan, Wilfrid Stephen Kendall, and Joseph Mecke. Stochastic Geometry and Its Applications. John Wiley and Sons, June 2013.

    [4] Maire E. and Withers P. J. Quantitative X-ray tomography. International Materials Reviews, 59(1):1{43, 2013.

    [5] Carlo Gaetan, Xavier Guyon, and Kevin Bleakley. Spatial statistics and modeling, volume 271. Springer, 2010.

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