An imaging device having a lens focusing light from a selected scene
within an optical footprint, and a substrate including a primary array
and at least one navigation array which are positioned within the optical
footprint. The primary array acquires a desired image of a portion of the
selected scene during an integration period and the at least one
navigation array acquires a series of images during the integration
period, including a first and a second image having common features from
the selected scene. A correlator determines location differences of the
common features of the first and second images relative to the at least
one navigation array and provides a displacement signal indicative of
imaging device translation in two planar dimensions during an interval
between the first and second images based on the location differences.