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A Topological Lattice Refinement Descriptor for Subdivision Schemes
2010The topological step of a subdivision scheme can be described as a refinement on regular tiling lattices, or more generally as a local transformation descriptor. The former classifies all the regular lattice transformations which give rise to other regular lattices.
Destelle, François +2 more
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QCODES − Fast Topological Descriptors for Macromolecules
Journal of Chemical Information and Computer Sciences, 2002A fast iterative algorithm to obtain topological atomic and molecular descriptors, called Qcodes, is presented in this work. Its linear time dependence with the size of the structures and low memory requirement allows practical use for small molecules as well as macromolecular systems.
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A Topological Descriptor of Acoustic Images for Navigation and Mapping
2015 12th Latin American Robotics Symposium and 2015 3rd Brazilian Symposium on Robotics (LARS-SBR), 2015The use of robots in underwater exploration is increasing in the last years. The automation of the monitoring, inspection and underwater maintenance tasks require a good mapping and localization system. One of the key issues of these systems is how to summarize the sensory information in order to recognize an area that has already been visited.
Matheus Machado dos Santos +4 more
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Topological Rotational Strengths as Chirality Descriptors for Fullerenes
Chemistry – A European Journal, 2003AbstractA graph‐theoretical procedure is proposed for assigning a chirality descriptor (the topological sign τ(+) or τ(−)) to each enantiomer of a chiral polyhedron, polyhedral molecule or graph, independently of any vertex labelling scheme. Model Cartesian coordinates and rotational strengths are obtained using only adjacency information; a ...
André, Rassat +2 more
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Topology based affine invariant descriptor for MSERs
2010 IEEE International Conference on Image Processing, 2010This paper introduces a topology based affine invariant descriptor for maximally stable extremal regions (MSERs). The popular SIFT descriptor computes the texture information on a grey-scale patch. Instead our descriptor use only the topology and geometric information among MSERs so that features can be rapidly matched regardless of the texture in the ...
Chenbo Shi +5 more
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A new topological descriptor for contextual feature indexing
2016 IEEE International Conference on Image Processing (ICIP), 2016A local feature descriptor for image analysis is a tool of interest for many applications. In this paper we propose an in context feature descriptor. An instance of this descriptor corresponding to a specific feature includes information from all other features in the image; it is a feature in context descriptor.
Nicolas Piché +2 more
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Degree-Based Topological Descriptors of Hexaphenylbenzene Molecule Graphs
Polycyclic Aromatic CompoundsDegree-based topological descriptors of chemical structures may help to measure the physico-chemical and nano-properties, which are necessary for the growing industry.
Yusuf Zeren, Abdu Alameri, Mutlu Akar
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Whole Molecule and Atom‐Based Topological Descriptors
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
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Proceedings of the 4th International Conference on PErvasive Technologies Related to Assistive Environments, 2011
In this paper, we propose a novel feature descriptor based on Gabor filters, called Topological Gabor Descriptor. We build a filter bank in such a way that the descriptors are invariant to rotation and scale changes. The filter bank topology enables a simple matching scheme based on the circular shift of descriptors.
Galigekere N. Vishnukumar +1 more
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In this paper, we propose a novel feature descriptor based on Gabor filters, called Topological Gabor Descriptor. We build a filter bank in such a way that the descriptors are invariant to rotation and scale changes. The filter bank topology enables a simple matching scheme based on the circular shift of descriptors.
Galigekere N. Vishnukumar +1 more
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Topological descriptors for substituent effect
1998-
Plavšić, Dejan, Vikić-Topić, Dražen
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