A device for forming a high-resolution image of an object is provided. The device comprises: an electronic camera for capturing an intermediate image of the object, an illumination system for forming a spatial modulation pattern on the object; and a spatial demodulator for performing a spatial demodulation, which is at least partially matched to the spatial modulation pattern. A method for deriving a high-spatial-resolution image from a set of images captured from a structure of an object is derived, wherein the illumination of the object is spatially-modulated, wherein the illumination of the object has a spatial modulation pattern, which is substantially periodic, wherein one of at least one prevailing orientation of the periodic illumination is arranged substantially perpendicularly to at least one prevailing orientation of the structure of the object.