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Study on the Standardizaton of Signal Intensity Scale of Pixel Value in Digital Radiography

Affiliations

  • Department of Radiological Science, Far East University,76-32, Daehak-gil, Gamgok-myeon, Eumsung-gun, Chungcheongbuk-do, jk2434/27601, Korea;
  • Department of Radiological Science, Far East University,76-32, Daehak-gil, Gamgok-myeon, Eumsung-gun, Chungcheongbuk-do, jk2434/27601, Korea
  • Department of Radiological Science, Eul Ji University, 553, Sanseong-dareo, Sujeong-gu, Seongnam-si, Gyeonggi-do, dk6298/13135, Korea;

Abstract


Objectives: The digital radiography image shows contrast by the difference between pixel values created in accordance with absorbance difference of transmitted X-ray to object. The purpose of this study is to propose the need of standardization of pixel value representation in digital radiography image. Methods/Statistical Analysis: The unprocessed images and processed images are obtained through various types of X-ray equipment and analyzed pixel values. Findings: As the result of pixel value analysis, the unprocessed images represented pixel values in accordance with X-ray signal intensity while processed images represented pixel values in accordance with gray scale. Improvements/Applications: In order to understand the relationship between radiation dose and pixel value in digital radiography image, the pixel value representation which reflects X-ray signal intensity is necessary.

Keywords

Digital Radiography, Gray Scale, Pixel Value, Signal Intensity.

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