A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
Finding axes of skewed symmetry
Computer Vision, Graphics, and Image Processing
Locating and modelling a flat symmetric object from a single perspective image
CVGIP: Image Understanding
Finding salient regions in images: nonparametric clustering for image segmentation and grouping
Computer Vision and Image Understanding - Special issue on content-based access for image and video libraries
Perceptual Organization and Visual Recognition
Perceptual Organization and Visual Recognition
Contribution to the Determination of Vanishing Points Using Hough Transform
IEEE Transactions on Pattern Analysis and Machine Intelligence
Detecting, localizing and grouping repeated scene elements from an image
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume I - Volume I
Geometric Saliency of Curve Correspondances and Grouping of Symmetric Comntours
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume I - Volume I
Normalized Cuts and Image Segmentation
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Mirror and Point Symmetry under Perspective Skewing
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
The Cascaded Hough Transform as an Aid in Aerial Image Interpretation
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
A Computational Model for Periodic Pattern Perception Based on Frieze and Wallpaper Groups
IEEE Transactions on Pattern Analysis and Machine Intelligence
Matching Widely Separated Views Based on Affine Invariant Regions
International Journal of Computer Vision
Point Matching under Large Image Deformations and Illumination Changes
IEEE Transactions on Pattern Analysis and Machine Intelligence
One-click lattice extraction from near-regular texture
GRAPHITE '05 Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia
Discovering structural regularity in 3D geometry
ACM SIGGRAPH 2008 papers
Delving deeper into the whorl of flower segmentation
Image and Vision Computing
Efficient symmetry detection using local affine frames
SCIA'07 Proceedings of the 15th Scandinavian conference on Image analysis
Review article: Edge and line oriented contour detection: State of the art
Image and Vision Computing
Dense 3D reconstruction of symmetric scenes from a single image
DAGM'11 Proceedings of the 33rd international conference on Pattern recognition
Detecting symmetry and symmetric constellations of features
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part II
SymCity: feature selection by symmetry for large scale image retrieval
Proceedings of the 20th ACM international conference on Multimedia
Detecting and reconstructing 3d mirror symmetric objects
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part II
Building a symbol library from technical drawings by identifying repeating patterns
GREC'11 Proceedings of the 9th international conference on Graphics Recognition: new trends and challenges
Lattice estimation from images of patterns that exhibit translational symmetry
Image and Vision Computing
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We present a geometric framework for the efficient detection of regular repetitions of planar (but not necessarily coplanar) patterns. At the heart of our system, lie the fixed structures of the transformations that describe these regular configurations. The approach detects a number of symmetric configurations that have traditionally been dealt with separately, in that all configurations corresponding to planar homologies are detected. These include important cases such as periodicities, mirror symmetries, and reflections about a point. The approach can handle perspective distortions. It avoids to get trapped in combinatorics through invariant-based hashing for pattern matching and through Hough transforms for the detection of fixed structures. Additional efficiency and robustness are obtained from the system's ability to 驴reason驴 about the consistency of multiple homologies. The performance of the system is demonstrated with several examples.