Imaging quality determination method and system for medical imaging equipment

• Main Authors: ZHANG CONGHUA, LIU CAO
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses an imaging quality determination method and system for medical imaging equipment. The imaging quality determination method comprises the following steps: acquiring a phantom image acquired by using medical imaging equipment; determining the outer edge of the die body in the die body image by using an edge detection method; correcting the outer edge of the die body by usingthe physical die body to obtain a corrected die body image; averagely dividing the correction die body image into 15 * 15 square areas; identifying a hole target in each square block region by using agray threshold method; identifying the edge of each hole target in each square block area identifying the hole target by utilizing an 8-direction chain code, and determining the outline of each holetarget; comparing the outline of each hole target with the outline of the hole in the corresponding physical model body to obtain a scaling factor; and determining the imaging quality according to thenumber of the hole targets