[Forschungsseminar-BSV] Research Seminar 'Computer Graphics, Image Processing, and Visualization'

[Vanessa Kretzschmar]

I N V I T A T I O N

======================================================================

to the Research Seminar 'Computer Graphics, Image Processing, and
Visualization'

     on Wednesday, June the 21st, 2023, at 01:15 PM,
     in the room P-701, Paulinum, Augustusplatz 10, 04109 Leipzig, also 
online.
     (https://conf.fmi.uni-leipzig.de/b/van-bwb-jil-vk2)

======================================================================

A talk will be given by

     Roxana Bujack

and is entitled:

     'The Non-Riemannian Nature of Perceptual Color Space'

Abstract:

     The scientific community generally agrees on the theory, introduced by
     Riemann and furthered by Helmholtz and Schrödinger, that perceived 
color
     space is not Euclidean but rather, a three-dimensional Riemannian 
space.
     We show that the principle of diminishing returns applies to human 
color
     perception. This means that large color differences cannot be derived
     by adding a series of small steps, and therefore, perceptual color 
space
     cannot be described by a Riemannian geometry. This finding is 
inconsistent
     with the current approaches to modeling perceptual color space. 
Therefore,
     the assumed shape of color space requires a paradigm shift. 
Consequences
     of this apply to color metrics that are currently used in image and 
video
     processing, color mapping, and the paint and textile industries. These
     metrics are valid only for small differences. Rethinking them outside
     of a Riemannian setting could provide a path to extending them to large
     differences. This finding further hints at the existence of a 
second-order
     Weber–Fechner or Stevens law describing perceived differences.

======================================================================

On behalf of Professor Scheuermann all those interested are cordially
invited to attend.

Yours sincerely
Vanessa Kretzschmar
-------------- nächster Teil --------------
Ein Dateianhang mit Binärdaten wurde abgetrennt...
Dateiname   : 20230621T131500_bsv_invitation.ics
Dateityp    : text/calendar
Dateigröße  : 2283 bytes
Beschreibung: nicht verfügbar
URL         : <http://lists.informatik.uni-leipzig.de/pipermail/forschungsseminar-bsv/attachments/20230607/b03917bb/attachment.ics>