On active contour models and balloons
CVGIP: Image Understanding
Weighted mean of a pair of graphs
Computing
Direct Gray-Scale Extraction of Features for Character Recognition
IEEE Transactions on Pattern Analysis and Machine Intelligence
Finite-Element Methods for Active Contour Models and Balloons for 2-D and 3-D Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Gradient Vector Flow: A New External Force for Snakes
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Local Orientation Extraction for Wordspotting in Syriac Manuscripts
ICISP '08 Proceedings of the 3rd international conference on Image and Signal Processing
A novel ring radius transform for video character reconstruction
Pattern Recognition
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In this paper, we describe an example of the use of active contours for the reconstruction of degraded character images. Active contours were introduced fifteen years ago by Kass and al. [8], and have been widely used since then for segmentation purpose or for objects detection in any kind of natural images, but they have never been used on document images. The aim of this paper is to study the possibility for active contours to enable the recovering of characters width on degraded character images suffering from discontinuities. This is done using two original kinds of energies, the first one based on the use of punctual attraction forces plot on the degraded areas, and the second one based on the use of an external "ideal" image.