Bresson, X.Vandergheynst, P.Thiran, J.2006-06-142006-06-142006-06-14200610.1007/s11263-006-7462-3https://infoscience.epfl.ch/handle/20.500.14299/231672WOS:000241056300002We propose a new multiscale image segmentation model, based on the active contour/snake model and the Polyakov action. The concept of scale, general issue in physics and signal processing, is introduced in the active contour model, which is a well-known image segmentation model that consists of evolving a contour in images toward the boundaries of objects. The Polyakov action, introduced in image processing by Sochen-Kimmel-Malladi inLTS2LTS5text::journal::journal article::research article