Fig. 4
From: GPU based parallel acceleration for fast C-arm cone-beam CT reconstruction
System control time sequences. At every falling edge of T3, the states of T1 and T2 are checked to decide a push or pop action on the projection queue. When the reconstruction of an arbitrary frame is in progress, the acquisitions for the next frames can be carried out at the same time to form a latency hiding scheme. The push and pop action controls the frame queue for reconstruction