Workshop sur la complexité spatio-chromatique (CIE TC 8-14)

Nous organisons dans le cadre de MIRES, des journées de travail sur la définition et la mesure de la complexité spatio-chromatique des surfaces colorées planes les 10, 11 et 12 Juillets prochains.

La mesure de la complexité spatio-chromatique donne un cadre pour le développement de la métrologie de l’aspect texturé/non-uniforme des surfaces colorées. Le propos intègre à la fois des questions de mathématique (dimension fractale dans des espaces de dimension n), de synthèse de textures, d’analyse d’images et de physique. L’ensemble se développe dans un contexte reliant le domaine perceptuel (mesures trichromatiques et expérimentation psycho-physique) et le domaine physique (mesures multi et hyperspectrales).

Les deux premiers jours se passeront à l’espace Mendes-FRance à Poitiers et la matinée du 12 au laboratoire XLIM(salle du troisième). Je vous ai joint le programme qui est encore mouvant sur certains horaires.

Program of the meeting:

Program for the Workshop on the Spatio-Chromatic Complexity and Textures
10/07/2018 Espace Mendes-France
9h00-9h15 Welcome coffe, introduction and presentation of the participants Mihai Ivanovici and Noël Richard
9h15-9h45 Measuring the complexity : state of  the art, relationship with the Spectral Power Density functions Noël Richard
9h45-10h15 Generating non-uniform and complex surfaces Mihai Ivanovici
10h15-10h45 Coffee and discussion time
10h45-11h45 Analysis of  colour fractal images Mihai Ivanovici
11h45- 12h15 Elements for a generic definition of the spatio-chromatic complexity Collective work and discussion
Lunch
14h00-15h00 fractal generation  in a vector way Mihai Ivanovici, Hela Jebali
15h00-15h30 How to assess the human colour/luminance contrast sensitivity functions ? Sophie Wuerger
15h30-16h00 Coffee and discussion time
16h00- 16h30 A first psycho-physical experiment on SCC Adèle Richard, Nathan Marie, Anaïs Forgeau
16h30-17h15 What can be understood by Spatio-Chromatic Complexity Manuel Melgosa
17h15 – 17h45 Improving the elements for a generic definition of the spatio-chromatic complexity Collective work and discussion
18h00 Aperitif
11/07/2018 Espace Mendes-France
9h00-9h45 Measuring the complexity from colour images Hela Jebali
9h45-10h30 Measuring statistics, Entropy  from hyperspectral images Hilda Deborah, Yu-jung Chen
10h30-11h00 Coffee and discussion time
11h00-12h00 Relationship between non-uniform surfaces, complexity measures, human perception Dominique Lafon
12h00-12h30 Elements for the assessment of the spatio-chromatic complexity from colour images/surfaces Collective work and discussion
Lunch
14h00-14h45 Optical models of surfaces Museum :  Anne Michelin
14h45-15h30 Application of the complexity assessment for Quality control of Varnished wood samples Mihai Ivanovici
15h30-16h00 Coffee and discussion time
16h00- 16h30 Skin Colour, skin colour image database : some elements about the metrology of the skin Kaida Xiao
16h30-17h00 Generic assessement of the spatio-chromatic complexity of flat surfaces from trichromatic to spectral domain Noël Richard
17h00-17h30 Proposition of a generic definition for the spatio-chromatic complexity and for the references/elements of assessment Collective writing
End of the working day
12/07/2018 XLIM, meeting room of the third floor
Opening purpose for the TC 8-14 on recent advances in mathematics, computer graphics, image processing
9h00-9h45 Beyond the complexity of flat surfaces : Colour differences from 3D surfaces Kaida Xiao
9h45-10h30 Monogenic transforms for colour texture synthesis
10h30-10h45 Coffee and discussion time
10h45-11h30 Using cases in the assessment of car paintings : problems and expected measures : JTC 12 Alejandro Ferrero,
11h30-12h15 Questions around the psycho-physical experiment about the assessment of the spatio-chromatic complexity Noël
12h15-12h30 Cloture of these days

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