一种反卷积方法在闪烁扫描术中的应用研究。
A study of the application of a deconvolution method to scintigraphy.
作者信息
Cordier S, Biraud Y, Champailler A, Voutay M
出版信息
Phys Med Biol. 1979 May;24(3):577-82. doi: 10.1088/0031-9155/24/3/008.
It is shown that an Anger-type gamma camera can be considered as a linear filter. The image is therefore the convolution of the object by the camera point spread function. An important property of the objects is the fact that they are basically positive (count-rates as a function of space variables). The proposed deconvolution method (due to Biraud) is shown to work satisfactorily on a 1-D scintigraphic signal which is a particular cross-section of a 2-D image. This is a preliminary study of the enhancement of real scintigraphic images.
结果表明，安杰型γ相机可被视为一个线性滤波器。因此，图像是物体与相机点扩散函数的卷积。物体的一个重要特性是它们基本上是正值（计数率作为空间变量的函数）。所提出的反卷积方法（由比劳德提出）在一维闪烁扫描信号上表现出令人满意的效果，该信号是二维图像的一个特定横截面。这是对真实闪烁扫描图像增强的初步研究。
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