Currents and K-functions for Fiber Point Processes

Pernille E.H. Hansen*, Rasmus Waagepetersen, Anne Marie Svane, Jon Sporring, Hans J.T. Stephensen, Stine Hasselholt, Stefan Sommer

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Analysis of images of sets of fibers such as myelin sheaths or skeletal muscles must account for both the spatial distribution of fibers and differences in fiber shape. This necessitates a combination of point process and shape analysis methodology. In this paper, we develop a K-function for fiber-valued point processes by embedding shapes as currents, thus equipping the point process domain with metric structure inherited from a reproducing kernel Hilbert space. We extend Ripley’s K-function which measures deviations from complete spatial randomness of point processes to fiber data. The paper provides a theoretical account of the statistical foundation of the K-function, and we apply the K-function on simulated data and a data set of myelin sheaths. This includes a fiber data set consisting of myelin sheaths configurations at different debts.

Original languageEnglish
Title of host publicationGeometric Science of Information - 5th International Conference, GSI 2021, Proceedings
EditorsFrank Nielsen, Frédéric Barbaresco
Number of pages8
PublisherSpringer Science+Business Media
Publication date2021
Pages127-134
ISBN (Print)9783030802080
DOIs
Publication statusPublished - 2021
Event5th International Conference on Geometric Science of Information, GSI 2021 - Paris, France
Duration: 21 Jul 202123 Jul 2021

Conference

Conference5th International Conference on Geometric Science of Information, GSI 2021
Country/TerritoryFrance
CityParis
Period21/07/202123/07/2021
SeriesLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12829 LNCS
ISSN0302-9743

Bibliographical note

Publisher Copyright:
© 2021, Springer Nature Switzerland AG.

Keywords

  • Fibers
  • K-function
  • Myelin sheaths
  • Point processes
  • Shape analysis

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