METHOD FOR REMOVING BACKGROUND SCATTERING COMPONENT FROM RADIOGRAPHIC IMAGE Russian patent published in 2023 - IPC G06T7/11 

FIELD: radiographic studies.

SUBSTANCE: essence of the invention lies in the fact that in order to remove the component from the background scattering from the radiographic image, the original image is obtained. A flat field image corresponding to the conditions for obtaining the above-mentioned original image is obtained. An X-ray attenuation image is obtained. The area related to the object under study is determined. The effective value of the X-ray attenuation is determined from the image of the attenuation of X-ray radiation in said area related to the object under study. The effective thickness of the homogeneous tissue-equivalent material corresponding to the mentioned effective value of X-ray attenuation is determined. The parameters of the scattering function are determined corresponding to said effective thickness of the homogeneous tissue-equivalent material and the conditions for obtaining said initial image. A corrected image is obtained by pixel-by-pixel multiplication of said original image by a weighting coefficient depending on the attenuation of the X-ray radiation corresponding to a given pixel. An image of the background scattering component is obtained using said scattering function parameters and said corrected image. The final image, cleared of the background scattering component, is obtained by subtracting the image of the background scattering component from the said original image.

EFFECT: improved image quality as a result of increased contrast without the need for a significant increase in time spent on its processing and radiation exposure to the patient.

7 cl, 4 dwg