A Hierarchical Compositional Model for Face Representation and Sketching

@article{Xu2008AHC,
  title={A Hierarchical Compositional Model for Face Representation and Sketching},
  author={Zijian Xu and Hong Chen and Song-Chun Zhu and Jiebo Luo},
  journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
  year={2008},
  volume={30},
  pages={955-969}
}
This paper presents a hierarchical-compositional model of human faces, as a three-layer AND-OR graph to account for the structural variabilities over multiple resolutions. In the AND-OR graph, an AND-node represents a decomposition of certain graphical structure, which expands to a set of OR-nodes with associated relations; an OR-node serves as a switch variable pointing to alternative AND-nodes. Faces are then represented hierarchically: The first layer treats each face as a whole, the second… CONTINUE READING
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