1. A method comprising: determining a scene to be captured at a first resolution, wherein the scene to be captured is within a field of view of an image sensor; causing capture by the image sensor of a plurality of sub-images at a respective second resolution, the second resolution being less than the first resolution, wherein the plurality of sub-images depicts a portion of the scene to be captured; and using the plurality of sub-images to generate an output image depicting the scene to be captured at the first resolution.