  Since the invention of digital cameras there has been a concerted drive
towards detector arrays with higher spatial resolution. Microscanning is a
technique that provides a final higher resolution image by combining multiple
images of a lower resolution. Each of these low resolution images is subject to
a sub-pixel sized lateral displacement. In this work we apply the microscanning
approach to an infrared single-pixel camera. For the same final resolution and
measurement resource, we show that microscanning improves the signal-to-noise
ratio (SNR) of reconstructed images by approximately 50%. In addition, this
strategy also provides access to a stream of low-resolution 'preview' images
throughout each high-resolution acquisition. Our work demonstrates an
additional degree of flexibility in the trade-off between SNR and spatial
resolution in single-pixel imaging techniques.
