Logical Consideration Of Digital Imaging Process Of Minimal Radiographs

Yen Wang; C. C. Li; H. T. Tai; David B.C. Shu

doi:10.1117/12.933848

29 December 1982 Logical Consideration Of Digital Imaging Process Of Minimal Radiographs

Yen Wang, C. C. Li, H. T. Tai, David B.C. Shu

Proceedings Volume 0347, Application of Optical Instrumentation in Medicine X; (1982) https://doi.org/10.1117/12.933848
Event: Application of Optical Instrumentation in Medicine X, 1982, New Orleans, United States

Abstract

A logical consideration of the digital imaging process (6) is described using the characteristics of the film and screen of a radiograph and a non-linear compensation curve for each pixel between optical density value of 100% exposure radiograph and 25% exposure radiograph obtained experimentally and theoretically. A radiological image of less than 100% exposure can be generated using the point-by-point mapping to form a radiographic image which is similar to that of 100% exposure. The mathematic expression of the film to screen characteristics and conversion between the optical densities of the 100% exposed radiograph and that of 25% exposure are given. A possible potential application of the digital imaging process is discussed.

Citation Download Citation

Yen Wang, C. C. Li, H. T. Tai, and David B.C. Shu "Logical Consideration Of Digital Imaging Process Of Minimal Radiographs", Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); https://doi.org/10.1117/12.933848

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