A method for determining a changing spatial distribution of particles to a plurality of times

摘要

In the case of a method for determining a varying spatial distribution of particles (1) to a plurality of in time intervals between successive points in time (t_n-2, t_n-1, t_n), the for each of the points in time (t_n-2, t_n-1, t_n) the steps of: (i) of real two-dimensional images of the particles (1) with different effective projection at the point in time (t_n-2, t_n-1, t_n); (ii) an estimated spatial distribution of the particles (1); (iii) calculating of virtual two-dimensional images of the estimated spatial distribution with the different projection; (iv) detecting differences (5) between the virtual two-dimensional images and the real two-dimensional images with the same projection; and (v) change of the estimated spatial distribution of the particles (1) for the reduction of the differences (5), in order to the actual spatial distribution of the particles (1) to the point in time (t_n-2, t_n-1, t_n) approximate spatial distribution of the invention to obtain, the estimated spatial distribution of the particles (1) for at least one point in time (t_n) specified in which the positions of the individual particles (1) in a for an earlier point in time (t_n-1) resulting approximate spatial distribution be displaced as a function thereof, such as their positions between for at least two earlier times (t_n-2, t_n-1) approximate spatial distributions have been displaced.