Wiener filter restoration of high-energy flash x-ray radiograph
Tianfu Wang, Weishen Dong, Guangzhi Yang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
Wiener filter restoration is a good method in the linear space, but it requests the signal to noise ratio be over a certain threshold. In the flash x-ray radiographs the signal to noise ratio is often low. In this paper, we hope to study how to apply the Wiener filter restoration method in the low signal to noise ratio case, and then discuss how to choose the parameter k.