Reference
Kropatsch, W., Haxhimusa, Y., & Ion, A. (2007). Multiresolution Image Segmentations in Graph Pyramids. In A. Kandel, H. Bunke, & M. Last (Eds.), Applied Graph Theory in Computer Vision and Pattern Recognition (pp. 3–41). Springer. http://hdl.handle.net/20.500.12708/25409