1. 基礎と CR(4. ノイズ特性, ディジタルラジオグラフィの画像評価)

• 岸本 健治

  大阪市立大学医学部附属病院中央放射線部

書誌事項

タイトル別名

• 1. NOISE PROPERTIES OF DIGITAL RADIOGRAPHY

抄録

In digital radiography, we showed the cause of noise product and the factor that influences it, and indicated that what process are noise of computed radiographic (CR) system caused by. In addition, we measured the overall Wiener spectrum (WS) varying some factors concerned with noise product in CR image. With the increase in X-ray exposure to the imaging plate (IP), the noise was reduced, whereas at high exposure level the noise amounted to constant value. Futhemore the greater is pixel size, the noise was reduced. Compared the CR image with the screen/film system (BMIII/Cronex-10, BHIII/Cronex-10), the noise of CR image was smaller than that of screen/film system.

収録刊行物

• 日本放射線技術学会雑誌

  日本放射線技術学会雑誌 47 (6), 854-858, 1991

  公益社団法人 日本放射線技術学会

キーワード

• Noise
• Wiener spectrum
• Computed radiography (CR)

詳細情報

• CRID: 1390282681352128512
• NII論文ID: 110003464758
• DOI: 10.6009/jjrt.kj00003323650
• ISSN: 18814883
• ISSN: 03694305
• ISSN: http://id.crossref.org/issn/03694305
• Web Site: https://www.jstage.jst.go.jp/article/jjrt/47/6/47_KJ00003323650/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1992111893
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可