1. An aperture-scanning Fourier ptychographic imaging device, comprising: a first optical element configured to receive light from a sample; a second optical element; an aperture scanner configured to generate an aperture at a plurality of aperture locations in an intermediate plane, the aperture configured to pass incident light at the aperture from the first optical element to the second optical element; a light detector configured to receive light from the second optical element and to acquire a plurality of intensity images associated with different aperture locations; and a processor configured to construct a complex image of the sample by iteratively updating regions in Fourier space with the acquired intensity images.