Skip to main content

Research Repository

Advanced Search

Outputs (106)

An improved `gas of circles' higher-order active contour model and its application to tree crown extraction (2006)
Presentation / Conference Contribution
Horvath, P., Jermyn, I., Kato, Z., & Zerubia, J. (2006, December). An improved `gas of circles' higher-order active contour model and its application to tree crown extraction. Presented at 5th Indian Conference Computer Vision, Graphics and Image Processing (ICVGIP 2006), Madurai

A central task in image processing is to find the region in the image corresponding to an entity. In a number of problems, the region takes the form of a collection of circles, e.g. tree crowns in remote sensing imagery; cells in biological and medic... Read More about An improved `gas of circles' higher-order active contour model and its application to tree crown extraction.

Remarks on Duality in Graph Spaces of First-Order Linear Operators (2006)
Journal Article
Jensen, M. (2006). Remarks on Duality in Graph Spaces of First-Order Linear Operators. Proceedings in Applied Mathematics and Mechanics, 6(1), 31-34. https://doi.org/10.1002/pamm.200610009

Graph spaces provide a setting alternative to Sobolev spaces and BV spaces, which is suitable for the analysis of first-order linear boundary value problems such as Friedrichs systems. Besides investigations of the well-posedness of the continuous pr... Read More about Remarks on Duality in Graph Spaces of First-Order Linear Operators.

Identification of the stress-energy tensor through conformal restriction in SLE and related processes (2006)
Journal Article
Doyon, B., Riva, V., & Cardy, J. (2006). Identification of the stress-energy tensor through conformal restriction in SLE and related processes. Communications in Mathematical Physics, 268(3), 687-716. https://doi.org/10.1007/s00220-006-0106-1

We derive the Ward identities of Conformal Field Theory (CFT) within the framework of Schramm-Loewner Evolution (SLE) and some related processes. This result, inspired by the observation that particular events of SLE have the correct physical spin an... Read More about Identification of the stress-energy tensor through conformal restriction in SLE and related processes.

Periodic point data detects subdynamics in entropy rank one (2006)
Journal Article
Miles, R., & Ward, T. (2006). Periodic point data detects subdynamics in entropy rank one. Ergodic Theory and Dynamical Systems, 26(6), 1913-1930. https://doi.org/10.1017/s014338570600054x

A framework for understanding the geometry of continuous actions of Z^d was developed by Boyle and Lind using the notion of expansive behaviour along lower-dimensional subspaces. For algebraic Zd-actions of entropy rank one, the expansive subdynamics... Read More about Periodic point data detects subdynamics in entropy rank one.

Mixing actions of the rationals (2006)
Journal Article
Miles, R., & Ward, T. (2006). Mixing actions of the rationals. Ergodic Theory and Dynamical Systems, 26(6), 1905-1911. https://doi.org/10.1017/s0143385706000356

We study mixing properties of algebraic actions of Q^d, showing in particular that prime mixing Q^d-actions on connected groups are mixing of all orders, as is the case for Z^d-actions. This is shown using a uniform result on the solution of S-unit e... Read More about Mixing actions of the rationals.

Holographic melting and related properties of mesons in a quark-gluon plasma (2006)
Journal Article
Peeters, K., Zamaklar, M., & Sonnenschein, J. (2006). Holographic melting and related properties of mesons in a quark-gluon plasma. Physical Review D, Particles and fields, 74(10), https://doi.org/10.1103/physrevd.74.106008

We analyze mesons at finite temperature in a chiral, confining string dual. The temperature dependence of low-spin as well as high-spin meson masses is shown to exhibit a pattern familiar from the lattice. Furthermore, we find the dissociation temper... Read More about Holographic melting and related properties of mesons in a quark-gluon plasma.

Periodicity in the transient regime of exhaustive polling systems (2006)
Journal Article
MacPhee, I., Menshikov, M., Popov, S., & Volkov, S. (2006). Periodicity in the transient regime of exhaustive polling systems. Annals of Applied Probability, 16(4), 1816-1850. https://doi.org/10.1214/105051606000000376

We consider an exhaustive polling system with three nodes in its transient regime under a switching rule of generalized greedy type. We show that, for the system with Poisson arrivals and service times with finite second moment, the sequence of nodes... Read More about Periodicity in the transient regime of exhaustive polling systems.