Disclosed are systems and method for imaging an input object. An imaging device includes: a light source that emanates light to a sensing region in which the input object to be imaged is placed; a collimator filter layer; an image sensor array disposed below the collimator filter layer that blocks some light reflected from the input object while other light passes through apertures in the collimator filter layer and arrives at the image sensor array; and a controller configured to cause a first image of the input object to be captured with the light source turned on, and to transmit the first image to a processor associated with the electronic device to perform image matching against one or more template images before causing a second image of the input object to be captured with the light source turned off.