Robust Morphological Scale-Space Trees

This paper derives a new tree representation of an image and shows how the tree may be derived from graph morphology and connected-set, alternating sequential, filters. The resulting scale tree forms a pyramid of increasing size objects where the nodes correspond to features of a particular scale. The tree structure itself may be made fairly insensitive to geometrical changes in the image. By parsing the tree and using attributes associated with the nodes, image processing operations such as filtering, segmentation and detection can be performed.