X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1999-02-23
2000-09-12
Bruce, David V.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 98, 378 988, G01N 2304
Patent
active
061188468
ABSTRACT:
A process and associated apparatus for performing defective pixel correction in a radiation detector having a plurality of radiation sensors arrayed in rows and columns. The process and associated apparatus are specifically directed to correcting defects consisting of a plurality of adjacent pixels arrayed along and connected to a common electrode forming a bad pixel line. The pixel correction is accomplished by identifying the bad pixel line, forming a window of a plurality of pixel lines co-extending along the bad pixel line; identifying a limited number of adjacent pixel lines adjacent to the bad pixel line as also being bad pixel lines; preferably subdividing the window pixels into smaller windows along the bad pixel line, deriving correction coefficients for all bad line pixels in each subdivision from the good pixels in each subdivision and using the correction coefficients to correct the pixels in both the original bad line and in the adjacent bad pixel lines.
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Bruce David V.
Direct Radiography Corp.
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