Figure 1.

(a) Generalized x-ray imaging system using a single-beam x-ray source and detector pair with temporal multiplexing scheme to image an object in cyclic motion. (b) The correlation between a multiplexing matrix and the x-ray pulse timing diagram. The columns of the matrix are associated with each phase; the rows are associated with each recording frame. A 1∕0 at a location indicates that the x-ray pulse for that phase is turned on∕off for that recording frame. The highlighted row is shown with four x-ray pulses on at four different phases as an example.