Document degradation models and a methodology for degradation model validation
Document degradation models and a methodology for degradation model validation
Multigrid Convergence of Calculated Features in Image Analysis
Journal of Mathematical Imaging and Vision
DGCI '02 Proceedings of the 10th International Conference on Discrete Geometry for Computer Imagery
Digital Geometry: Geometric Methods for Digital Picture Analysis
Digital Geometry: Geometric Methods for Digital Picture Analysis
Journal of Mathematical Imaging and Vision
Fast, accurate and convergent tangent estimation on digital contours
Image and Vision Computing
ICIAP '07 Proceedings of the 14th International Conference on Image Analysis and Processing
Optimal blurred segments decomposition of noisy shapes in linear time
Computers and Graphics
Curvature estimation in noisy curves
CAIP'07 Proceedings of the 12th international conference on Computer analysis of images and patterns
Robust estimation of curvature along digital contours with global optimization
DGCI'08 Proceedings of the 14th IAPR international conference on Discrete geometry for computer imagery
Convex shapes and convergence speed of discrete tangent estimators
ISVC'06 Proceedings of the Second international conference on Advances in Visual Computing - Volume Part II
Analysis and comparative evaluation of discrete tangent estimators
DGCI'05 Proceedings of the 12th international conference on Discrete Geometry for Computer Imagery
Blurred Segments in Gray Level Images for Interactive Line Extraction
IWCIA '09 Proceedings of the 13th International Workshop on Combinatorial Image Analysis
Multi-scale Analysis of Discrete Contours for Unsupervised Noise Detection
IWCIA '09 Proceedings of the 13th International Workshop on Combinatorial Image Analysis
Top-Down Segmentation of Histological Images Using a Digital Deformable Model
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part I
Application of shape description methodology to hand radiographs interpretation
ICCVG'10 Proceedings of the 2010 international conference on Computer vision and graphics: Part I
Regularization of Discrete Contour by Willmore Energy
Journal of Mathematical Imaging and Vision
Circular arc reconstruction of digital contours with chosen Hausdorff error
DGCI'11 Proceedings of the 16th IAPR international conference on Discrete geometry for computer imagery
Accurate curvature estimation along digital contours with maximal digital circular arcs
IWCIA'11 Proceedings of the 14th international conference on Combinatorial image analysis
Maximal planes and multiscale tangential cover of 3D digital objects
IWCIA'11 Proceedings of the 14th international conference on Combinatorial image analysis
ADR shape descriptor - Distance between shape centroids versus shape diameter
Computer Vision and Image Understanding
A combined multi-scale/irregular algorithm for the vectorization of noisy digital contours
Computer Vision and Image Understanding
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In this paper, we introduce a new curvature estimator along digital contours, which we called global min-curvature (GMC) estimator. As opposed to previous curvature estimators, it considers all the possible shapes that are digitized as this contour, and selects the most probable one with a global optimization approach. The GMC estimator exploits the geometric properties of digital contours by using local bounds on tangent directions defined by the maximal digital straight segments. The estimator is then adapted to noisy contours by replacing maximal segments with maximal blurred digital straight segments. Experiments on perfect and damaged digital contours are performed and in both cases, comparisons with other existing methods are presented.