In CT image system, basic research on the evaluation method

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Other Title
  • CT画像システムにおける評価法に関する基礎研究(ネットワークプロセッサ,通信のための信号処理回路,無線LAN/PAN,一般)

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Description

In medical image of the X-ray CT, image quality that can achieve the object of the imaging needs to be obtained in as much as possible low doses. Therefore it is necessary to optimize the imaging method and image reconstruction in accordance with the purpose of diagnostic imaging. To do so, it is an objective, quantitative image quality evaluation essential. We do fitting in averaging of small image in discrete image data. We represent the discrete data in the sigmoid function is a continuous function. Using two-stage noise removal, I consider evaluation method on the edge enhancement. As a result, the characteristics of the MTF of IR method are Introduction equivalent data and Richard et al data, I was confirmed dependency. However, the result is shown in US AAPM guidelines do not match in the FBP method. In this study, FBP method was confirmed that that does not have a dependency.

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Details 詳細情報について

  • CRID
    1572261552385581440
  • NII Article ID
    110010014844
  • NII Book ID
    AN10013298
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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