Title:
IMAGE PROCESSING METHOD AND APPARATUS FOR REDUCING NOISE OF IMAGE OBTAINED BY RADIOGRAPHY
Document Type and Number:
Japanese Patent JP2023174512
Kind Code:
A
Abstract:
To provide an image processing apparatus and an image processing method which can enhance accuracy of discrimination of a motion by reducing and stabilizing the noise deviation so as to be able to determine an appropriate threshold in order to determine the presence/absence of the motion of a subject with a subtraction image.SOLUTION: An image processing apparatus configured to perform noise reduction on an image obtained by radiography in a recursive way includes: an image input unit receiving frame-by-frame images obtained by the radiography; a motion detection image generating unit configured to generate a motion detection image comprising motion detection information for each pixel of a subtraction image obtained by a subtraction of a current frame image and a previous frame image; a motion probability image generating unit configured to generate a motion probability image based on the generated motion detection image and the motion detection image accumulated up to a previous frame; and an output image generating unit configured to generate an output image of a current frame by mixing the current frame image and the output image of the previous frame based on the motion probability image.SELECTED DRAWING: Figure 8
Inventors:
PARK JUNE KYU
SHIN CHOUL-WOO
YU YOUNG GI
SHIN CHOUL-WOO
YU YOUNG GI
Application Number:
JP2023050136A
Publication Date:
December 07, 2023
Filing Date:
March 27, 2023
Export Citation:
Assignee:
DRTECH CORP
International Classes:
A61B6/00
Attorney, Agent or Firm:
Tsuyoshi Yamada