Patent ID: 8699819
Filing Date: 2014-04-15
Classification: G06K,G06T

Abstract:
1. A method, comprising: receiving a first image of a first view of a document, and a second image of a different, second view of the document; selecting multiple visual features from the first image, and multiple visual features from the second image; selecting, for each of the multiple visual features from the first image, a set of pixels that are located adjacent to the visual feature from the first image; selecting, for each of the multiple visual features from the second image, a set of pixels that are located adjacent to the visual feature from the second image; comparing, by one or more computers, each of the sets of pixels from the first image to each of the sets of pixels from the second image to select pairs of sets of pixels that are characterized as matching; determining, by the one or more computers, that a quantity of a subset of the pairs of sets of pixels that include (i) a set of pixels that are associated with a first grid location within the first image, and (ii) a set of pixels that are associated with a second grid location within the second image, satisfies a threshold; mapping, by the one or more computers, the first grid location within the first image to the second grid location within the second image based on determining that the quantity of a subset of the pairs of sets of pixels that include (i) a set of pixels that are associated with a first grid location within the first image, and (ii) a set of pixels that are associated with a second grid location within the second image, satisfies the threshold; and generating a composite view of the document using the first image and the second image based on mapping the first grid location within the first image to the second grid location within the second image.