Results 11 to 20 of about 944,515 (124)

The Fisher-Rao metric

open access: yes, 2008
The information in a mass of data is summarised by fitting to the data a probability density function (pdf) chosen from a parameterised family of pdfs. Distances between pairs of pdfs are calculated using the Fisher-Rao metric, which provides a measure ...
Maybank, Stephen J.
core   +7 more sources

Optical flow estimation using the Fisher-Rao metric [PDF]

open access: yes, 2021
The optical flow in an event camera is estimated using measurements in the Address Event Representation (AER). Each measurement consists of a pixel address and the time at which a change in the pixel value equalled a given fixed threshold.
Benosman, R.   +3 more
core   +1 more source

Application of the Fisher-Rao metric to ellipse detection [PDF]

open access: yes, 2007
The parameter space for the ellipses in a two dimensional image is a five dimensional manifold, where each point of the manifold corresponds to an ellipse in the image. The parameter space becomes a Riemannian manifold under a Fisher-Rao metric, which is
Stephen J. Maybank, Maybank, Stephen J.
core   +1 more source

A Fisher-Rao metric for paracatadioptric images of lines [PDF]

open access: yes, 2012
In a central paracatadioptric imaging system a perspective camera takes an image of a scene reflected in a paraboloidal mirror. A 360° field of view is obtained, but the image is severely distorted.
Maybank, Stephen J.   +2 more
core   +1 more source

The Fisher-Rao metric for projective transformations of the line [PDF]

open access: yes, 2005
A conditional probability density function is defined for measurements arising from a projective transformation of the line. The conditional density is a member of a parameterised family of densities in which the parameter takes values in the three ...
Stephen J. Maybank, Maybank, Stephen J.
core   +1 more source

Detection of image structures using the Fisher information and the Rao metric [PDF]

open access: yes, 2004
In many detection problems, the structures to be detected are parameterized by the points of a parameter space. If the conditional probability density function for the measurements is known, then detection can be achieved by sampling the parameter space ...
Maybank, Stephen J., S.J. Maybank
core   +2 more sources

From the Jordan Product to Riemannian Geometries on Classical and Quantum States

open access: yesEntropy, 2020
The Jordan product on the self-adjoint part of a finite-dimensional C * -algebra A is shown to give rise to Riemannian metric tensors on suitable manifolds of states on A , and the covariant derivative, the geodesics, the Riemann tensor,
Florio M. Ciaglia   +2 more
doaj   +1 more source

Information Geometry in Roegenian Economics

open access: yesEntropy, 2022
We characterise the geometry of the statistical Roegenian manifold that arises from the equilibrium distribution of an income of noninteracting identical economic actors.
Constantin Udriste, Ionel Tevy
doaj   +1 more source

On the Geodesic Distance in Shapes K-means Clustering

open access: yesEntropy, 2018
In this paper, the problem of clustering rotationally invariant shapes is studied and a solution using Information Geometry tools is provided. Landmarks of a complex shape are defined as probability densities in a statistical manifold.
Stefano Antonio Gattone   +3 more
doaj   +1 more source

Information Geometry of Complex Hamiltonians and Exceptional Points

open access: yesEntropy, 2013
Information geometry provides a tool to systematically investigate the parameter sensitivity of the state of a system. If a physical system is described by a linear combination of eigenstates of a complex (that is, non-Hermitian) Hamiltonian, then there ...
Dorje C. Brody, Eva-Maria Graefe
doaj   +1 more source

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