1. A method of reconstructing an image, said method comprising: substantially minimizing a cost function of the form x ^ = arg ⁢ ⁢ min x ⁢ { ∑ m = 0 M ⁢ ⁢ D m ⁡ ( y m , F m ⁡ ( x ) ) + S ⁡ ( x ) } , where {circumflex over (x)} is the value of x which achieves the minimum summation, y m is an integral projection, F m (x) is a forward projection function, D m (y m ,F m (x)) is a distance measure between y m and F m (x), and S(x) is a stabilizing function, to obtain {circumflex over (x)}; and using the obtained {circumflex over (x)} to perform a multislice Computed Tomography (CT) reconstruction to generate an image.