Symmetry equations are obtained for the rigidity matrix of a bar-joint framework in Rd . These form the basis for a short proof of the FowlerGuest symmetry group generalisation of...
Symmetry is one of the most important properties of a shape, unifying form and function. It encodes semantic information on one hand, and affects the shape's aesthetic value ...
Mirela Ben-Chen, Adrian Butscher, Justin Solomon, ...
We show that rigid reachability, the non-symmetric form of rigid E-unification, is undecidable already in the case of a single constraint. From this we infer the undecidability of ...
Harald Ganzinger, Florent Jacquemard, Margus Veane...
Symmetry and self-similarity is the cornerstone of Nature, exhibiting itself through the shapes of natural creations and ubiquitous laws of physics. Since many natural objects are...
Daniel Raviv, Alexander M. Bronstein, Michael M. B...
We propose a novel, self-validating approach for detecting curved reflection symmetry patterns from real, unsegmented images. Our method benefits from the observation that any curv...