White K S, Baxter B, Nelson J A
Invest Radiol. 1985 Nov;20(8):854-9. doi: 10.1097/00004424-198511000-00014.
This article describes a technique for digital separation of the primary and scatter components of a radiographic image. The method involves mathematical modeling of the process whereby an antiscatter grid reduces scatter patterns in film radiographs. Two superimposable radiographs (one taken with and the other without an intervening antiscatter grid) are applied to the model. Performance characteristics of the grid (primary and scatter transmittance factors) are also determined and used in the model. Radiographs of a humanoid chest phantom are processed. Scatter/primary separation appears to be accurate to within 15%. Film images that are quantitatively faithful to the calculated primary and scatter fields are included.
本文介绍了一种用于数字分离射线图像中一次射线和散射射线成分的技术。该方法涉及对防散射格栅减少胶片射线照片中散射图案过程的数学建模。将两张可叠加的射线照片（一张在有防散射格栅介入的情况下拍摄，另一张没有）应用于该模型。还确定了格栅的性能特征（一次射线和散射射线透过率因子）并用于该模型。对人形胸部体模的射线照片进行了处理。散射/一次射线分离的准确率似乎在15%以内。还包括了在数量上忠实于计算出的一次射线和散射射线场的胶片图像。
