Patent ID: 7660478

Claim:
A portable digital camera, comprising (a) an apparatus for capturing digital images; and (b) a digital processing component for determining a camera motion blur function in a captured digital image based on a comparison of at least two sets of image data acquired at different times; (c) wherein each of said sets of image data is acquired with a same sensor, such that at least a same portion of said same sensor captures at least a portion of each of said at least two sets of image data, within a temporal range that includes an exposure period of the captured digital image, and times proximately before and after said exposure period, and of nominally the same scene as that of the captured digital image, and (d) wherein a first set of said sets of image data is compared to a second set of said sets of image data, the second set comprising a lower pixel resolution than the first set and the second set being taken outside the exposure period of the first set, and (e) wherein said digital processing component is arranged to match the pixel resolutions of the first and second image data sets by at least one of up-sampling the first image data set and sub-sampling the second image data set; and (f) wherein said digital processing component is arranged to align at least portions of the at least two sets of image data before they are compared, and (g) wherein the digital processing component is further arranged to determine whether to de-blur said captured digital image depending on whether the camera motion blur function indicates that sufficient or insufficient blur exists.