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確率共鳴を利用したコントラスト分解能の改善

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  • 確率共鳴を利用したコントラスト分解能の改善(医用画像とIMQ一般)
  • カクリツ キョウメイ オ リヨウ シタ コントラスト ブンカイノウ ノ カイゼン
  • Improvement of Contrast Resolution Using Stochastic Resonance

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Abstract

Recently, phenomenon called Stochastic Resonance was found in a nonlinear system, and has been applied for many researches in various fields. In this study, we have verified that Stochastic Resonance appeared in CT images by adding white-Gaussian noise to CT images. Furthermore, we have also evaluated relationship between contrast and noise intensity added to CT images, and found the suitable noise intensity which maximizes the contrast resolution in CT images.

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