A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Edge detection and motion detection
Image and Vision Computing
A hierarchical filter scheme for efficient corner detection
Pattern Recognition Letters
Edge Detection with Embedded Confidence
IEEE Transactions on Pattern Analysis and Machine Intelligence
ICAPR '01 Proceedings of the Second International Conference on Advances in Pattern Recognition
False positive reduction in urinary particle recognition
Expert Systems with Applications: An International Journal
Continuity order of local displacement in volumetric image sequence
WBIR'10 Proceedings of the 4th international conference on Biomedical image registration
Variational method for super-resolution optical flow
Signal Processing
Bifurcation of segment edge curves in scale space
SSVM'11 Proceedings of the Third international conference on Scale Space and Variational Methods in Computer Vision
Hi-index | 0.15 |
A family of second-order nonlinear differential operators that are useful in building simple edge detectors is treated. The authors provide a uniform definition for these operators and describe their internal geometry. Based on their geometric analysis, they associate symbolic descriptors with the abstract edges defined by the operators. One of them, Q, is essentially the same operator that J.F. Canny used to define his two-dimensional simple edge detector. The authors give a parse tree for Q, which provides a complete analysis of its local geometry. The analysis shows that Q has a fondness for edges that lift to certain types of asymptotic curves. These include select straight line segments lying on the surface, inflections of mean curvature, and paths with constant rate of ascent. The methods are drawn largely from vector calculus and differential geometry. The authors illustrate their theoretical work with results obtained when Q was applied to image data that were interpolated with a B-spline.