X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1997-11-10
1999-11-02
Bruce, David Vernon
X-ray or gamma ray systems or devices
Specific application
Absorption
378 987, G01N 2304
Patent
active
059784431
ABSTRACT:
An x-ray system acquires medical images stored as an array of pixel values. Bright regions in the image produced by collimation or protective devices on the patient are automatically detected and filled with dark pixel values to reduce glare and improve the readability of the image. Automatic detection is achieved on a down sampled copy of the image in which edges of bright background regions are detected. The bright background regions in the down sampled image are filled with dark pixel values and an up sampled copy of this filled image is merged with the original image to produce the final image.
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Jiebo Luo and Robert A. Senn; Collimation detection for digital radiograp.; pp. 74-85, SPIE vol. 3034, 1997.
Bruce David Vernon
Cabou Christian G.
General Electric Company
Price Phyllis Y.
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