Computer Vision, Graphics, and Image Processing
Recursive Implementation of Erosions and Dilations Along Discrete Lines at Arbitrary Angles
IEEE Transactions on Pattern Analysis and Machine Intelligence
Fingerprint Classification by Directional Image Partitioning
IEEE Transactions on Pattern Analysis and Machine Intelligence
Directional Morphological Filtering
IEEE Transactions on Pattern Analysis and Machine Intelligence
Systematic Methods for the Computation of the Directional Fields and Singular Points of Fingerprints
IEEE Transactions on Pattern Analysis and Machine Intelligence
Morphological Image Analysis: Principles and Applications
Morphological Image Analysis: Principles and Applications
SIBGRAPI '04 Proceedings of the Computer Graphics and Image Processing, XVII Brazilian Symposium
Image Analysis and Mathematical Morphology
Image Analysis and Mathematical Morphology
Constrained nonlinear models of fingerprint orientations with prediction
Pattern Recognition
Directional features in online handwriting recognition
Pattern Recognition
Singular point detection by shape analysis of directional fields in fingerprints
Pattern Recognition
Oriented connectivity-based method for segmenting solar loops
Pattern Recognition
Automatic watershed segmentation of randomly textured color images
IEEE Transactions on Image Processing
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In the present paper a morphological approach for segmenting directional structures is proposed. This approach is based on the concept of the line-segment and orientation functions. The line-segment function is computed from the supremum of directional erosions. This function contains the sizes of the longest lines that can be included in the structure. To determine the directions of the line segments, the orientation function which contains the angles of the line segments it is built when the line-segment function is computed. Next, by combining both functions, a weighted partition is built using the watershed transformation. Finally, the elements of the partition are merged according to some directional and size criteria for computing the desired segmentation of the image using a RAG structure.