1. Computing skeletons in three dimensions;Borgefors;Pattern Recognit.,1999
2. Interactive design of bonsai tree models;Boudon,2005
3. J.Y. Bouguet, Pyramidal implementation of the lucas kanade feature tracker: description of the algorithm, 2000, Technical Report, Intel Corporation Microprocessor Research Labs. http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.185.585.
4. Image-based reconstruction and synthesis of dense foliage;Bradley;ACM Trans. Graph.,2013
5. Campino – a skeletonization method for point cloud processing;Bucksch;ISPRS J. Photogramm. Remote Sens.,2008