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In this paper, we propose an algorithm to compose a geometrically dewarped and visually enhanced image from two document images taken by a digital camera at different angles. Unlike the conventional works that require special equipments or assumptions on the contents of books or complicated image acquisition steps, we estimate the unfolded book or document surface from the corresponding points between...
Recently, there have been some attempts to use a portable digital camera for the document digitization. But unlike the conventional flatbed scanners, the document images taken by digital cameras suffer from the perspective distortion and the geometric distortion. These problems deteriorate not only the subjective quality but also the character recognition rate. In this paper, a new document dewarping...
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