Aurelia TASSART EL IDRISSI MAHRI (asker) Sep 30, 2006:

Voici une phrase un peu plus loin dans le document :
"a method for retrieving an image based on an angular radial transform (ART) image descriptor."
Mais je ne sais pas comment l'associer avec le mot "coefficient".

Tony M Sep 30, 2006:

You'll probably need to give us a lot more context than that, Aurélia, if you want people to be in a position to give you the best help possible.