A Motion Detection Algorithm Using Local Phase Information

Figure 4

Example of block structure. (a) Four yellow disks show 4 Gaussian window functions with translation parameter , (top-left), , (bottom-left), , (top-right), and , (bottom-right). The red solid square shows a -pixel block approximating the Gaussian window with , , and the green dashed square shows a -pixel block approximating the Gaussian window with , . (b) Cross section of all 11 Gaussian windows with translation parameters , . The cross section is taken as indicated by the magenta line in (a), and the red and blue curve correspond to cross sections of the two Gaussian windows shown in (a) centered on the magenta line.

(a)

(b)