Reconstruction of Tree Crown Shape from Scanned Data.
ABSTRACT Reconstruction of a real tree from scattered scanned points is a new challenge in virtual reality. Although many progresses
are made on main branch structures and overall shape of a tree, reconstructions are still not satisfactory in terms of silhouette
and details. We do think that D reconstruction of the tree crown shapes may help to constrain accurate reconstruction of
complete real tree geometry. We propose here a novel approach for tree crown reconstruction based on an improvement of alpha
shape modeling, where the data are points unevenly distributed in a volume rather than on a surface only. The result is an
extracted silhouette mesh model, a concave closure of the input data. We suggest an appropriate scope of proper alpha values,
so that the reconstruction of the silhouette mesh is a valid manifold surface. Experimental results show that our technique
works well in extracting the crown shapes of real trees.
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Conference Proceeding: Synthetic topiary.[show abstract] [hide abstract]
ABSTRACT: The paper extends Lindenmayer systems in a manner suitable for simulating the interaction between a developing plant and its environment. The formalism is illustrated by modeling the response of trees to pruning, which yields synthetic images of sculptured plants found in topiary gardens.Proceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994; 01/1994
Conference Proceeding: Modeling the mighty maple.Proceedings of the 12st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1985; 01/1985
- Computer Aided Geometric Design. 01/1992; 9:457-470.