An Algorithm for Fast Reconstruction of Cross Section of Medical Image
QU Guihon · Beijing shengwu yixue gongcheng · 2004
An algorithm for fast reconstruction of an arbitrary cross section of a medical image based on vector rotation is proposed in this paper.The algorithm describes the imaging plane with vector function.The direction parameters of the imaging plane can be transformed into rotation values relative to three coordinates of a space reference system in two steps,whereby the problem of definite solution was transformed to finding a special solution of an indefinite equation.The advantage of the algorithm is that direct solution of the equation can be avoided and calculation of the transform of coordinates between the points in the cross section plane and those in the three-dimension medical image field can be done,being not necessary to solve the equation.Only three parameters(i.e.the directions of the normal vectors of the cross section plane)are included in the calculation of this algorithm,so the calculation is of low volume,resulting in easy description of man-machine interaction,and easy development of interface software.The experiments showed that the algorithm is fast in calculation and is of practical use.