Threshold selection method for medical X-ray images filter based on minimum even-square error
Lirong Zhao · Optics and Precision Engineering · 2001
Disturbance noises in medical X-ray imaging systems consist of inherent and quantum noises, which obey random Gauss and Polsson distributions, respectively. This paper theoretically provided an optimum threshold selection method for medical X-ray images filter. Through practical process of CT images, medical X-ray images filter based on minimum even-square error has been accomplished in this work.