  Differential ghost imaging was attempted in time domain, i.e., temporal
differential ghost imaging (TDGI), using pseudo-randomized light pulses and a
temporal object consisting of no-return-to-zero bit patterns of varying duty.
Evaluation of the signal-to-noise characteristics by taking account of errors
due to false cross-correlation between the reference and the bucket detector
readings indicates that the TDGI outperforms its non-differential counterpart,
i.e., time-domain GI, in terms of consistently high and even duty-independent
signal-to-noise ratios that are achieved. Dynamic local averaging helps save
data recording without compromising the essential features of the TDGI.
