Multiresolution segmentation using the irregular pyramid

Segmentation in regions may be achieved using pyramidal methods that provide hierarchical partitions of the original image. The irregular pyramid is a stack of adjacency graphs of the regions in which the shape of the regions is content based. Using the hierarchical decomposition of an image given by this pyramid, a multiresolution oriented process is proposed. Many segmentations at different resolutions are obtained by changing the value of a scale parameter. Thus, each entity may be extracted from the pyramid at its best resolution.