  In Dai et al. (2016) we developed a formalism for computing variance images
from standard, interferometric radio images containing time and frequency
information. Variance imaging with future radio continuum surveys allows us to
identify radio pulsars and serves as a complement to conventional pulsar
searches which are most sensitive to strictly periodic signals. Here, we carry
out simulations to predict the number of pulsars that we can uncover with
variance imaging on future continuum surveys. We show that the Australian SKA
Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) survey can find
$\sim30$ normal pulsars and $\sim40$ millisecond pulsars (MSPs) over and above
the number known today, and similarly an all-sky continuum survey with SKA-MID
can discover $\sim140$ normal pulsars and $\sim110$ MSPs with this technique.
Variance imaging with EMU and SKA-MID will detect pulsars with large duty
cycles and is therefore a potential tool for finding MSPs and pulsars in
relativistic binary systems. Compared with current pulsar surveys at high
Galactic latitudes in the southern hemisphere, variance imaging with EMU and
SKA-MID will be more sensitive, and will enable detection of pulsars with
dispersion measures between $\sim10$ and 100 cm$^{-3}$ pc.
