CT System Parameter Calibration and Imaging

Tingting Yang1,Yuchen Li2, Jingcen Zhang2, Zhujun Yu3*

1College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin, 300384, China

2College of Computer Science and Technology, Tianjin Agricultural University, Tianjin, 300384, China

3College of basic science, Tianjin Agricultural University, Tianjin, 300384, China

Abstract: According to annex 2 and the dimensioning of template schematic diagram, we take a circle as the research object, to calculate the detection unit interval approximation for d=0.2778 mm. We used in the physical problem of "met" train of thought for the initial Angle is 30 degrees of rotation (counterclockwise from straight and level Angle, is positive), step length for 1 degree even rotate it 180 times. Using spline function "smoothness" built a meter calculate Radon optimization mathematical model of inverse transformation, the absorption rate and make the unknown image, the image straight view shows the medium position in a square tray, medium geometry information, and we find requirements from the data after the inverse transformation of the absorption rate of 10 location.

Keywords: CT system parameter calibration; 2d radon transform; Spline function; Radon inverse transform