1. An imaging apparatus comprising: a) one or more apertures configured to receive light from a scene; b) a spatial mask comprising a plurality of spatial filters adjacent in a plane of the spatial mask and arranged to apply different, respective, spatial filtering functions, as a function of motion, to the light from the scene to produce an encoded image of the scene, features of the mask defining a pitch, the one or more apertures being fewer in number than the different spatial filtering functions; and c) sensor elements defining a pitch and being configured to sense the encoded image of the scene, the pitch of features of the mask being smaller than the pitch of the sensor elements.