書誌事項
- タイトル別名
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- Simulation of Granularity of Radiographs Exposed with Screen-Film Systems
- ゾウカンシ フィルムケイ デ サツエイシタ Xセン シャシン ノ リュウジョウ
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説明
The simulation is performed by superposing the Markov random numbers and the random step function, respectively expressing the density fluctuation due to the screen mottle and the film granularity. As the results, the autocorrelation function and the Wiener spectrum of the screen mottle are expressed by the exponential and Lorentzian formulae respectively, and those of the film granularity by the triangular wave and the square sampling function respectively. The correlation lengths of rare earth screen mottles are longer than those of calcium tungstate screen mottles.
収録刊行物
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- 日本写真学会誌
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日本写真学会誌 44 (6), 472-476, 1981
社団法人 日本写真学会
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詳細情報 詳細情報について
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- CRID
- 1390282681546664192
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- NII論文ID
- 130004098946
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- NII書誌ID
- AN00191766
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- ISSN
- 18845932
- 03695662
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- NDL書誌ID
- 2431784
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可