Reconstructing hv-Convex Polyominoes from Orthogonal Projections

@article{Chrobak1999ReconstructingHP,
  title={Reconstructing hv-Convex Polyominoes from Orthogonal Projections},
  author={M. Chrobak and C. D{\"u}rr},
  journal={ArXiv},
  year={1999},
  volume={cs.DS/9906021}
}
Abstract We address the problem of reconstructing a discrete 2D object, represented by a set of grid cells, from its orthogonal projections. We focus on objects called hv-convex polyominoes, which are connected objects with the property that the cells in each row and column are consecutive. The main result of this paper is a simple, O(mn min(m2,n2))-time algorithm for reconstructing hv-convex polyominoes. 
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