Patent ID: 8571171

Claim:
Method of reconstructing a tomographic image of a region of investigation with reduced artifacts, the method comprising: (a) reconstructing a first partial image and a second partial image of the region of investigation from first and second projection profiles each of which including projection data collected at first and second different groups of parallel projection lines, respectively, wherein the first and second projection profiles are provided such that streak aliasing artifacts in the first and second partial images have different spatial phases, and (b) generating the tomographic image of the region of investigation by superimposing the first and second partial images, wherein: the projection lines represent a scanning geometry such that parallel projection lines are distributed corresponding to zeros of Tschebycheff polynomials of the second kind of order [N−1], the projection lines in each of the first projection profiles are distributed corresponding to zeros of Tschebycheff polynomials of the second kind of order [(N/2)−1], and the projection lines in each of the second projection profiles are distributed corresponding to zeros of Tschebycheff polynomials of the first kind of order [N/2].