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invariant

Examples

  • duce a class of functionals that are invariant with respect to the Eu integral invariants to define a unique signature, from which the original. — “Integral Invariant Signatures”, vision.ucla.edu
  • Invariant is dedicated to providing high-quality technical services and products. Eglin Air Force Base awards Invariant Corporation five year contract for Arthropod Vision-Based Systems Modeling. — “Invariant Corporation - Systems and Software Engineering”, invariant-
  • Differential invariants are fundamental in projective differential geometry, and the curvature is often studied from.. Invariance mechanics - In physics, invariance mechanics, in its simplest form, is the rewriting of the laws of quantum field theory in terms of invariant quantities only. — “Invariant | TutorVista | Web”,
  • invariant adj. Not varying; constant. Mathematics . Unaffected by a designated operation, as a transformation of coordinates Invariant (physics), meaning that something does not change under a transformation, such as from one reference frame to another. — “invariant: Definition, Synonyms from ”,
  • Invariant Theory of Finite Groups This introductory lecture will be concerned with polynomial invariants of finite groups which come from a linear group action. To be familiar with some geometric invariants of groups of transformations of the plane. — “Use invariant in a sentence | invariant sentence examples”,
  • Γ\ SL(2, R) × L which are invariant and have positive entropy un- der the diagonal subgroup of SL(2, R) and recurrent under L. This. classification can be used to show arithmetic quantum unique er- godicity for compact arithmetic surfaces, and a similar but slightly. — “INVARIANT MEASURES AND ARITHMETIC QUANTUM UNIQUE ERGODICITY”, ma.huji.ac.il
  • Much like left invariant vector fields, left invariant forms are uniquely determined by their values in $T_e(G)$ , the tangent space at the identity element $e \in G$ , i.e. a left invairant form $\omega$ is uniquely determined by the values. — “PlanetMath: invariant differential form”,
  • Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. Learn more about "invariant" and related topics at . Browse. Next Word in the Dictionary: invasion. Previous Word in the Dictionary:. — “Invariant - Definition and More from the Free Merriam-Webster”, merriam-
  • Invariant (physics), meaning that something does not change under a transformation, such as from one reference frame to another. Writer invariant, property of a text which is similar in all texts of a given author, and different in texts of different authors. — “Invariant - Wikipedia, the free encyclopedia”,
  • invariant (comparative more invariant, superlative most invariant) not varying; constant (mathematics) Unaffected by a specified operation (especially by a Swedish: invariant sv(sv) The translations below need to be checked and inserted above into the appropriate translation tables,. — “invariant - Wiktionary”,
  • Definition of invariant in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is invariant? Meaning of invariant as a legal term. What does invariant mean in law?. — “invariant legal definition of invariant. invariant synonyms”, legal-
  • Invariant Distributions and Gelfand Pairs. Gelfand Pairs. Example. Let X be a finite set. Let the symmetric group Perm(X ) act on. X. Invariant Distributions and Gelfand Pairs. Some classical aplications. Harmonic ***ysis: SO(3, R), SO(2, R)) is a Gelfand pair. — “Invariant Distributions and Gelfand Pairs”, math.ias.edu
  • They introduced a p-adic invariant, the "(p-adic) L-invariant", of E as a Greenberg's L-invariant is then a global invariant and its computation requires the construction of. — “On Greenberg's L-invariant of the symmetric sixth power of an”, math.bu.edu
  • Given an admissible vertex weighting of a graph, an invariant set is an edge set such that the proper subsets is an invariant set. It is easily seen that every nonempty invariant set is a disjoint union of minimal invariant sets. A graphical characterisation of minimal invariant sets in a bipartite. — “Minimal invariant sets in a vertex-weighted graph”, dsi.uniroma1.it
  • Pronunciation of invariant. Translations of invariant. invariant synonyms, invariant antonyms. Information about invariant in the free online English dictionary and invariant - a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it. — “invariant - definition of invariant by the Free Online”,
  • Invariant definition, unvarying; invariable; constant. See more. invariant definition. programming. A rule, such as the ordering of an ordered list or heap, that applies throughout the life of a data structure or procedure. Each change to the data structure must maintain the correctness of the. — “Invariant | Define Invariant at ”,
  • Most image processing theories and algorithms are Euclidean invariant, so be a measure of its smoothness, and this number should be scale-invariant. — “On Similarity-Invariant Fairness Measures”, cs.technion.ac.il
  • For each program point's set of VarInfos, there exists exactly no more than one invariant of its type. Invariant.Match. Class used as a key to store invariants in a MAP where their equality depends on the invariant representing the same invariant (i.e., their class is the. — “Invariant”, groups.csail.mit.edu
  • Invariant Distributions and Gelfand Pairs. Gelfand Pairs. Example. Let X be a finite set. Let the symmetric group Perm(X ) act on. X. O(n, R)-invariant vector are the same as characters of the. — “Invariant Distributions and Gelfand Pairs”, wisdom.weizmann.ac.il
  • Local or global rotation invariant feature extraction has been widely used in texture classification. invariant features, e.g. local binary pattern (LBP), have the drawback of losing global spatial information,. — “Rotation invariant texture classification using LBP variance”, www4.comp.polyu.edu.hk

Videos

  • Scale Invariant 3D Multi-Person Tracking using a Base Set of Bundle Adjusted Visual Landmarks Scale Invariant 3D Multi-Person Tracking using a Base Set of Bundle Adjusted Visual Landmarks Authors: Alberto Del Bimbo, Giuseppe Lisanti, Federico Pernici More info: www.micc.unifi.it In the proceedings of the ninth Visual Surveillance 2009:
  • Linear Time Invariant systems - Part 2 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • Invariant Manifold of the Lorenz System showing Lorenz attractor Alexander Vladimirsky (Department of Mathematics, Cornell University, Ithaca, NY) joint project with John Guckenheimer. Invariant Manifold Movies: "Lorenz System" Example. www.math.cornell.edu The movie illustrates the stable manifold of the origin in the Lorenz system for the canonical parameter values. The color indicates the distance-to-origin-along-trajectory (sigma). The stable manifold rotating about the z-axis, first for Sigma=120, and then for Sigma=150. Inserted are ``Growing'' the manifold movies: Two different views (rotated) of the stable manifold of the origin. The manifold is displayed semi-transparently, except for the ``outer rim'' (opaque) representing the most recently added simplexes. The attractor is shown in black.
  • Algebraic geometric invariants of fg groups part 1 of 4 In this talk given at the New York Algebra Colloquium, Sal Liriano discusses his work on Algebro Geometric invariants of fg groups. More precisely, he discusses Hom(G,A), where A is an affine algebraic group. This space inherits the structure of an affine algebraic variety that he denotes by R_A(G) and calls the "space of representations of G over the affine group A". He presents several results and conducts a few calculations. He also discusses his recent applications of this invariant to the class of finitely generated parafree groups, a class of groups constructed by Gilbert Baumslag in the 60's. More precisely, if F_n, the free group of rank n, and A a connected affine group where F_n embeds then R_A(F_n) is irreducible. Liriano shows that when A=SL(2,C), there are non-free parafree groups G of rank 2, where R_A(G) can have as many irreducible components as you desire. In fact, you can find an infinite number of non-free parafree groups of rank 2 with dimension larger than any arbitrary positive integer given. This is quite surprising given the strong resemblance of non free parafree groups to free groups. He then discusses joint work with Majewicz using other invariants of R_A(G), where G is a torus knot group and an orientable surface group. In particular he discusses a result where Majewicz and Liriano show that the algebro-geometric properties of the space of representation over PSL(2,C) for a torus knot are quite different from those over SL(2,C). Also discussed ...
  • Loop invariants The correctness of iterative algorithms can be formally proven using loop invariants.
  • Scale-invariant heat kernel signatures for non-rigid shape recognition MM Bronstein, I. Kokkinos, Scale-invariant heat kernel signatures for non-rigid shape recognition, CVPR 2010. One of the biggest challenges in non-rigid shape retrieval and comparison is the design of a shape descriptor that would maintain invariance under a wide class of transformations the shape can undergo. Recently, heat kernel signature was introduced as an intrinsic local shape descriptor based on diffusion scale-space ***ysis. In this paper, we develop a scale-invariant version of the heat kernel descriptor. Our construction is based on a logarithmically sampled scale-space in which shape scaling corresponds, up to a multiplicative constant, to a translation. This translation is undone using the magnitude of the Fourier transform. The proposed scale-invariant local descriptors can be used in the bag-of-features framework for shape retrieval in the presence of transformations such as isometric deformations, missing data, topological noise, and global and local scaling. We get significant performance improvement over state-of-the-art algorithms on recently established non-rigid shape retrieval benchmarks.
  • Elementary Divisors, Invariant factors of Groups Nice easy video. Hope it helps someone
  • Time Invariance: Conceptual Introduction An introduction to the difference between time varying and time invariant systems. This video is one in a series of videos being created to support EGR 433:Transforms & Systems Modeling at Arizona State University. Links to the other videos can be found at
  • HU's invariant moments This is an implementation of Hu's moment of invariants. As the name suggests these moments are to aid a user to detect object in a robust fashion. That is , it is invariant to rotation and scale. Please note this implementation is no test for noise
  • Pose Invariant Face Detection
  • Fast Scale-Invariant Object Recognition Combining Harris Interest Points and the SIFT Descriptor for Fast Scale-Invariant Object Recognition.
  • Linear Time Invariant systems - Part 3 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • Algelbraic geometric invariants of fg groups part 2 of 4 In this talk given at the New York Algebra Colloquium, Sal Liriano discusses his work on Algebro Geometric invariants of fg groups. More precisely, he discusses Hom(G,A), where A is an affine algebraic group. This space inherits the structure of an affine algebraic variety that he denotes by R_A(G) and calls the "space of representations of G over the affine group A". He presents several results and conducts a few calculations. He also discusses his recent applications of this invariant to the class of finitely generated parafree groups, a class of groups constructed by Gilbert Baumslag in the 60's. More precisely, if F_n, the free group of rank n, and A a connected affine group where F_n embeds then R_A(F_n) is irreducible. Liriano shows that when A=SL(2,C), there are non-free parafree groups G of rank 2, where R_A(G) can have as many irreducible components as you desire. In fact, you can find an infinite number of non-free parafree groups of rank 2 with dimension larger than any arbitrary positive integer given. This is quite surprising given the strong resemblance of non free parafree groups to free groups. He then discusses joint work with Majewicz using other invariants of R_A(G), where G is a torus knot group and an orientable surface group. In particular he discusses a result where Majewicz and Liriano show that the algebro-geometric properties of the space of representation over PSL(2,C) for a torus knot are quite different from those over SL(2,C). Also discussed ...
  • Quantum Algorithms and Invariant Subgroups part 3 of 6 New York Algebra Colloquium March 25, 2011. Dr. Marianna Bonanome (City Tech, CUNY) Title: Quantum Algorithms for Fixed Points and Invariant Subgroups Abstract of Marianna's talk: In this talk I will present quantum algorithms to solve several problems concerning fixed points and invariant subgroups of automorphisms. These efficient algorithms invoke a quantum algorithm which computes the intersection of multiple unsorted lists whose elements originate from the same set. This intersection algorithm is a modification of the Grover search procedure. For more information regarding the colloquium, please visit:
  • Invariants A tutorial on invariants. For more help please go to
  • The Invariant Set To read along follow this link:
  • Lec-21 The Time-Invariant Kalman Filter Lecture Series on Estimation of Signals and Systems by Prof.S. Mukhopadhyay, Department of Electrical Engineering, IIT Kharagpur. For more details on NPTEL visit nptel.iitm.ac.in
  • Linear Time Invariant systems - Part 4 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • [cpsc 645 project] Linear Rotation-invariant Coordinates for Meshes
  • Object Matching Using A Locally Affine Invariant and Linear Programming Techniques - Video 3 Results
  • invariance in variance 'If reality is associated with invariance then the reality of the objects of experience lies in the invariant codes in terms of which they are known. Likewise, the reality of mind lies in the invariant structure of its manifold operations' - László Ervin 'A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community. It is wrong when it tends otherwise' - Aldo Leopold an audiovisual poem open to interpretations assertions attendant structures of reference
  • Lect. 9: System Properties (Time varying/invariant - Causality) How to determine whether a system is time-varying/invariant and causal/noncausal)?
  • Illumination Invariant Target Tracking 2 An object is tracked under changing illumination conditions. To cope with the variable scene illumination, the target tracking algorithm aims to separate the influence of the (variable) lighting conditions and the (fixed) influence of the surface reflection characteristics on the color. Tracking is then performed based on the surface reflection characteristics and NOT on the basis of the object color. The illumination conditions ares are estimated / learned over time, which is why the detection results are less good whenever a sudden illumination change occurs and then become better over time.
  • Linear Time Invariant systems - Part 5 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • Linear Time Invariant systems - Part 6 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • Learning Invariant Features Using Inertial Priors We address the technical challenges involved in combining key features from several theories of the visual cortex in a single computational model. The resulting model is a hierarchical Bayesian network factored into modular component networks implementing variable-order Markov models. Each component network has an associated receptive field corresponding to components in the level directly below it in the hierarchy. The variable-order Markov models account for features that are invariant to naturally occurring transformations in their inputs. These invariant features support efficient generalization and produce increasingly stable, persistent representations as we ascend the hierarchy. The receptive...
  • Quantum Algorithms and Invariant Subgroups part 1 of 6 New York Algebra Colloquium March 25, 2011. Dr. Marianna Bonanome (City Tech, CUNY) Title: Quantum Algorithms for Fixed Points and Invariant Subgroups Abstract of Marianna's talk: In this talk I will present quantum algorithms to solve several problems concerning fixed points and invariant subgroups of automorphisms. These efficient algorithms invoke a quantum algorithm which computes the intersection of multiple unsorted lists whose elements originate from the same set. This intersection algorithm is a modification of the Grover search procedure. For more information regarding the colloquium, please visit:
  • Time Invariance: Mathematics How to mathematically determine whether a system is time varying or time invariant. This video is one in a series of videos being created to support EGR 433:Transforms & Systems Modeling at Arizona State University. Links to the other videos can be found at
  • Linear Time Invariant systems - Part 1 This video presents the properties of LTI systems. Useful lecture series from alumnus of IISc/IITs for GATE, IES, PSUs aspirants. For more details visit
  • Algebraic geometric invariants of fg groups part 3 of 4 In this talk given at the New York Algebra Colloquium, Sal Liriano discusses his work on Algebro Geometric invariants of fg groups. More precisely, he discusses Hom(G,A), where A is an affine algebraic group. This space inherits the structure of an affine algebraic variety that he denotes by R_A(G) and calls the "space of representations of G over the affine group A". He presents several results and conducts a few calculations. He also discusses his recent applications of this invariant to the class of finitely generated parafree groups, a class of groups constructed by Gilbert Baumslag in the 60's. More precisely, if F_n, the free group of rank n, and A a connected affine group where F_n embeds then R_A(F_n) is irreducible. Liriano shows that when A=SL(2,C), there are non-free parafree groups G of rank 2, where R_A(G) can have as many irreducible components as you desire. In fact, you can find an infinite number of non-free parafree groups of rank 2 with dimension larger than any arbitrary positive integer given. This is quite surprising given the strong resemblance of non free parafree groups to free groups. He then discusses joint work with Majewicz using other invariants of R_A(G), where G is a torus knot group and an orientable surface group. In particular he discusses a result where Majewicz and Liriano show that the algebro-geometric properties of the space of representation over PSL(2,C) for a torus knot are quite different from those over SL(2,C). Also discussed ...
  • Checking Time Invariance of a Simulink Model An example of determining whether a Simulink system model is time invariant using simulation. This video is one in a series of videos being created to support EGR 433:Transforms & Systems Modeling at Arizona State University. Links to the other videos can be found at
  • Quantum Algorithms and Invariant Subgroups part 2 of 6 New York Algebra Colloquium March 25, 2011. Dr. Marianna Bonanome (City Tech, CUNY) Title: Quantum Algorithms for Fixed Points and Invariant Subgroups Abstract of Marianna's talk: In this talk I will present quantum algorithms to solve several problems concerning fixed points and invariant subgroups of automorphisms. These efficient algorithms invoke a quantum algorithm which computes the intersection of multiple unsorted lists whose elements originate from the same set. This intersection algorithm is a modification of the Grover search procedure. For more information regarding the colloquium, please visit:
  • AATUCAGG: Lesson 34 - Invariant and Relativistic Mass Invariant and Relativistic Mass are related to the curvature of space by the Aatucagg Factor
  • Machine Vision Technology Ltd - Rotational invariant OCR Optical character recognition on the top of food cans. This is to check that the code is correct compared to the barcode which is read at the labeling machine.
  • Bending-invariant correspondence matching on 3D human bodies for feature point extraction Samuel S.-M. Li, Charlie CL Wang, and Kin-Chuen Hui, "Bending-invariant correspondence matching on 3D human bodies for feature point extraction", IEEE Transactions on Automation Science and Engineering, accepted.
  • Object Matching Using A Locally Affine Invariant and Linear Programming Techniques - Video 4 Results
  • Color Invariant Chroma Keying and Color Spill Neutralization for Dynamic Scenes and Cameras
  • Linearity and Time Invariance Example: RC Circuit Part 1 An example of determining whether an RC circuit is linear and time invariant. This provides some conceptual ideas about the role of initial conditions in systems whose dynamics are described by differential equations. This video is one in a series of videos being created to support EGR 433:Transforms & Systems Modeling at Arizona State University. Links to the other videos can be found at
  • Illumination Invariant Target Tracking 1 An object is tracked under changing illumination conditions. To cope with the variable scene illumination, the target tracking algorithm aims to separate the influence of the (variable) lighting conditions and the (fixed) influence of the surface reflection characteristics on the color. Tracking is then performed based on the surface reflection characteristics and NOT on the basis of the object color. The illumination conditions ares are estimated / learned over time, which is why the detection results are less good whenever a sudden illumination change occurs and then become better over time.
  • Invariant measure of logistic map An animation of Invariant measure of logistic map.
  • Gendai Haiku (invariant image) Exhibited in "The thought of Yoon, Shingo, Hisaya" (Seoul, April 21st-May 10th 2010). Gendai Haiku consists of two movies, one is invariant image of Haiku and another is modern interpretation of it. We tried to rediscover the traditional relationships between humans and nature. Created by. MATSUHISA (Shingo and Hisaya)
  • Invariant ***yzer Automatically detect and diagnose system failures that have been hardly detectable, and deliver improved service levels with reduced TCO. see this URL, too: www.nec.co.jp