1. A method of assembling a two dimensional image of a fingerprint from a series of one-dimensional linear fingerprint images, formed by a linear one-dimensional array of gap sensor elements aligned generally orthogonally to a direction of motion of a finger, comprising: obtaining position data versus time for the position of the finger as the finger swipes the linear one dimensional array, in the direction of finger motion; determining motion versus time for the finger, based at least in part on the position data versus time as the finger swipes the linear one-dimensional array; removing poor fingerprint image data contained in at least one of the series of one-dimensional linear fingerprint images, by determining from the motion a probable finger position in relation to the linear one dimensional array versus the time of the at least one of the series of one-dimensional linear fingerprint images; and including the at least one of the series of one-dimensional linear fingerprint images in the two dimensional image of the fingerprint based upon the probable finger position and an analysis of the content of the at least one of the series of linear one-dimensional fingerprint images.