Machine Vision and Applications
Computational Framework for Segmentation and Grouping
Computational Framework for Segmentation and Grouping
On the Removal of Shadows from Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Novel Approach to Pavement Image Segmentation Based on Neighboring Difference Histogram Method
CISP '08 Proceedings of the 2008 Congress on Image and Signal Processing, Vol. 2 - Volume 02
Novel Approach to Pavement Cracking Automatic Detection Based on Segment Extending
KAM '08 Proceedings of the 2008 International Symposium on Knowledge Acquisition and Modeling
Entropy Minimization for Shadow Removal
International Journal of Computer Vision
Automatic crack detection in heritage site images for image inpainting
Proceedings of the Eighth Indian Conference on Computer Vision, Graphics and Image Processing
SVD based automatic detection of target regions for image inpainting
ACCV'12 Proceedings of the 11th international conference on Computer Vision - Volume 2
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Pavement cracks are important information for evaluating the road condition and conducting the necessary road maintenance. In this paper, we develop CrackTree, a fully-automatic method to detect cracks from pavement images. In practice, crack detection is a very challenging problem because of (1) low contrast between cracks and the surrounding pavement, (2) intensity inhomogeneity along the cracks, and (3) possible shadows with similar intensity to the cracks. To address these problems, the proposed method consists of three steps. First, we develop a geodesic shadow-removal algorithm to remove the pavement shadows while preserving the cracks. Second, we build a crack probability map using tensor voting, which enhances the connection of the crack fragments with good proximity and curve continuity. Finally, we sample a set of crack seeds from the crack probability map, represent these seeds by a graph model, derive minimum spanning trees from this graph, and conduct recursive tree-edge pruning to identify desirable cracks. We evaluate the proposed method on a collection of 206 real pavement images and the experimental results show that the proposed method achieves a better performance than several existing methods.