  Magnetic field imaging is a valuable resource for signal source localization
and characterization. This work reports an optically pumped magnetometer (OPM)
based on the free-induction-decay (FID) protocol, that implements
microfabricated cesium (Cs) vapor cell technology to visualize the magnetic
field distributions resulting from various magnetic sources placed close to the
cell. The slow diffusion of Cs atoms in the presence of a nitrogen (N$_{2}$)
buffer gas enables spatially independent measurements to be made within the
same vapor cell by translating a $175\,\mu$m probe beam over the sensing area.
For example, the OPM was used to record temporal and spatial information to
reconstruct magnetic field distributions in one and two dimensions. The optimal
magnetometer sensitivity was estimated to be 0.43$\,\mathrm{pT/\sqrt{Hz}}$
within a Nyquist limited bandwidth of $500\,$Hz. Furthermore, the sensor's
dynamic range exceeds the Earth's field of approximately $50\,\mu$T, which
provides a framework for magnetic field imaging in unshielded environments.
