Abstract : Perspective distortion always occurs while scanning thick, bound documents, resulting in two problems in the scanned grayscale image - (i) shade along the 'spine' of the book, and (ii) warping of words in the shade area. We proposed a restoration system to solve these two problems in our previous paper [1]. However the shape of the warped words was not fully restored, since we simply shifted and rotated the warped word. In this paper, we will propose a better method to straighten warped text line using polynomial regression. The implementation results comparing with those of the old system have shown a marked improvement in the image restoration.
https://hal.archives-ouvertes.fr/hal-00708601
Contributeur : Vincent Rabeux
<>
Soumis le : mardi 26 juin 2012 - 13:24:33
Dernière modification le : jeudi 11 janvier 2018 - 06:20:16
Document(s) archivé(s) le : jeudi 27 septembre 2012 - 02:25:40
Vincent Rabeux, Nicholas Journet, Anne Vialard, Jean-Philippe Domenger. Document perceptual quality ground truth creation. Document Analysis Systems, Mar 2012, France. pp.1, 2012. 〈hal-00708601〉
