A Split-Quaternion-Based Chromatic Adaptation Transform for White Balance

#perceptual #chromatic #adaptation #transform #(CAT) #Kries #CAT #split-quaternions #quantum-like #model #of #color #perception
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This talk presents a novel perceptual chromatic adaptation transform (CAT) for white balance that leverages split-quaternions. This work is situated within the context of a recently developed quantum-like model of color perception and aims to highlight the connection between the algebraic structures emerging from that model and a specific subalgebra of the split-quaternions. To demonstrate the potential of this framework for color image processing, we implement the CAT using a customized form of split-quaternion multiplication. We also provide quantitative comparisons with the widely used von Kries CAT to evaluate performance.


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  • POZNAŃ UNIVERSITY OF TECHNOLOGY
  • ul. Jana Pawła II 24, 60-965 Poznań, Poland
  • Poznań, Wielkopolskie
  • Poland 60-965
  • Building: CENTER FOR MECHATRONICS, BIOMECHANICS, AND NANOENGINEERING
  • Room Number: room 201
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  • The meeting on Sep. 19, 2025, 12:00 PM CEST, a hybrid form.
    https://emeeting.put.poznan.pl/eMeeting/paw-frx-owr-w28

    The address: Jana Pawła II 24, 60-965 Poznań, room 201

  • Co-sponsored by Poznan University of Technology
  • Starts 14 September 2025 10:00 PM UTC
  • Ends 18 September 2025 10:00 PM UTC
  • No Admission Charge

  Speakers

Nicoletta Prencipe of Poznań University of Medical Sciences, Poland

Topic:

A Split-Quaternion-Based Chromatic Adaptation Transform for White Balance

This talk presents a novel perceptual chromatic adaptation transform (CAT) for white balance that leverages split-quaternions. This work is situated within the context of a recently developed quantum-like model of color perception and aims to highlight the connection between the algebraic structures emerging from that model and a specific subalgebra of the split-quaternions. To demonstrate the potential of this framework for color image processing, we implement the CAT using a customized form of split-quaternion multiplication. We also provide quantitative comparisons with the widely used von Kries CAT to evaluate performance.

Biography:

Nicoletta Prencipe received her MSc in Mathematics from the Dipartimento di Matematica Tullio Levi-Civita at the Università degli Studi di Padova, Italy, in 2019. She received her PhD from the Institut de Mathématiques de Bordeaux, University of Bordeaux, in collaboration with the Nice Research Center of Huawei Technologies, in 2022. Since 2023, she has been a postdoctoral researcher at the Center for Ubiquitous Computing at the University of Oulu in northern Finland, working in the Perception Engineering group. Her primary research interest is in the mathematical modeling of human visual perception and its interaction with image processing and virtual reality applications.

Email:

Address:Center for Ubiquitous Computing (UBICOMP), University of Oulu, Oulu, Uleaborgs Lan, Finland