1. A digital image acquisition apparatus, comprising: an image acquisition sensor coupled to imaging optics for acquiring a sequence of images; an image store for storing two or more of said sequence of images acquired by said sensor; a motion detector for causing said sensor to cease capture of an image when the degree of movement of the apparatus in acquiring said image exceeds a threshold, and wherein exposure times of two or more of said sequence of images differ based on different degrees of movement of the apparatus; a controller for selectively transferring said two or more of said images acquired by said sensor to said image store; a motion extractor for determining motion parameters of at least one selected image stored in said image store, wherein the motion extractor is configured to: estimate a point spread function (PSF) for said selected image; calculate a Cepstrum for said selected image; identify one or more spikes in said Cepstrum; and select one of said spikes in said Cepstrum as an end point for said PSF; an image re-constructor for correcting said at least one selected image with associated motion parameters; and an image merger for merging a selected plurality of images including said two or more images, and including said at least one selected image corrected by said image re-constructor to produce a high quality image of said scene.