The transfer function of imaging system is modeled using the linear system theory and sampling theory, and the noise is characterized with the three-dimensional noise model.
利用线性系统理论和采样理论对成像系统的传递函数进行了分析建模；借助于三维噪声模型表征了系统的噪声特性。
In a three dimensional X ray coded imaging system, it is effective method to reduce the reduplicate noise of a certain layer image for enhancing the signal noise rate.
x射线编码三维成像系统中，减少观察层上的重叠噪声是提高图像信噪比的有效方法。
This paper presents an approach for the speckle noise reduction in three-dimensional surface laser light sensing: surface light scanning.
提出一种激光片光三维传感中降低散斑影响的方法：片光面内移动扫描法。
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