| 摘要 |
FIELD: information technologies. ^ SUBSTANCE: method to search for vectors of part movement in dynamic images includes the following actions: transformation of image frame sequence into digital form, memorising discrete counts of brightness in current and reference frames, breaking current frame into macroblocks and searching for movement vector of each macroblock of current frame relative to reference frame by means of minimisation of control sum of this macroblock by considered multitude of movement vectors, and this sum is the sum of norms of pixel-by-pixel difference of levels in current and reference frames, the reference macroblock is re-digitised to increase spatial resolution with the help of direct and reverse two-dimensional discrete Fourier transformation and expansion of produced Fourier spectrum with coefficients equal to zero. ^ EFFECT: increased accuracy of part movement vectors search in dynamic images by spatial coordinates and improved quality of reproduction of quickly moving parts. ^ 2 cl, 8 dwg |
