title: Hierarchical segmentation-based image coding using hybrid quad-binary trees.
abstract: A novel segmentation-based image approximation and coding technique is proposed. A hybrid quad-binary (QB) tree structure is utilized to efficiently model and code geometrical information within images. Compared to other tree-based representation such as wedgelets, the proposed QB-tree based method is more efficient for a wide range of contour features such as junctions, corners and ridges, especially at low bit rates.
authors.affiliation: Electrical and Computer Engineering Department, National University of Singapore, Singapore. ashraf@nus.edu.sg
authors.forename: Ashraf A
authors.initials: AA
authors.lastname: Kassim
authors.forename: Wei Siong
authors.initials: WS
authors.lastname: Lee
authors.forename: Dornoosh
authors.initials: D
authors.lastname: Zonoobi