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Easy modeling of realistic trees from freehand sketches 被引量:2

Easy modeling of realistic trees from freehand sketches
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摘要 Creating realistic 3D tree models in a convenient way is a challenge in game design and movie making due to diversification and occlusion of tree structures. Current sketch-based and imagebased approaches for fast tree modeling have limitations in effect and speed, and they generally include complex parameter adjustment, which brings difficulties to novices. In this paper, we present a simple method for quickly generating various 3D tree models from freehand sketches without parameter adjustment. On two input images, the user draws strokes representing the main branches and crown silhouettes of a tree. The system automatically produces a 3D tree at high speed. First, two 2D skeletons are built from strokes, and a 3D tree structure resembling the input sketches is built by branch retrieval from the 2D skeletons. Small branches are generated within the sketched 2D crown silhouettes based on self-similarity and angle restriction. This system is demonstrated on a variety of examples. It maintains the main features of a tree: the main branch structure and crown shape, and can be used as a convenient tool for tree simulation and design. Creating realistic 3D tree models in a convenient way is a challenge in game design and movie making due to diversification and occlusion of tree structures. Current sketch-based and imagebased approaches for fast tree modeling have limitations in effect and speed, and they generally include complex parameter adjustment, which brings difficulties to novices. In this paper, we present a simple method for quickly generating various 3D tree models from freehand sketches without parameter adjustment. On two input images, the user draws strokes representing the main branches and crown silhouettes of a tree. The system automatically produces a 3D tree at high speed. First, two 2D skeletons are built from strokes, and a 3D tree structure resembling the input sketches is built by branch retrieval from the 2D skeletons. Small branches are generated within the sketched 2D crown silhouettes based on self-similarity and angle restriction. This system is demonstrated on a variety of examples. It maintains the main features of a tree: the main branch structure and crown shape, and can be used as a convenient tool for tree simulation and design.
出处 《Frontiers of Computer Science》 SCIE EI CSCD 2012年第6期756-768,共13页 中国计算机科学前沿(英文版)
基金 Acknowledgements This work was supported in part by the National Natural Science Foundation of China (Grant Nos. 60970093, 60902078, 6117210, and 61072151) by Natural Science Foundation of Beijing (4112061), and by the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry of China.
关键词 virtual reality tree modeling SKETCH virtual reality, tree modeling, sketch
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  • 1Neubert B, Franken T, Deussen 0. Approximate image-based treemodeling using particle flows. ACM Transactions on Graphics, 2007, 26(3): 88.
  • 2Tan P, Fang T, Xiao J, Zhao P, Quan L. Single image tree modeling. ACM Transactions on Graphics, 2008, 27(5): 108.
  • 3Chen X, Neubert B, Xu Y, Deussen 0, Kang S. Sketch-based tree modeling using Markov random field. ACM Transactions on Graphics, 2008, 27(5): 109.
  • 4Prusinkiewicz P, Lindenmayer A, Hanan J. Development models of herbaceous plants for computer imagery purposes. ACM SIGGRAPH Computer Graphics, 1988,22(4): 141-150.
  • 5Prusinkiewicz P, Mlindermann L, Karwowski R, Lane B. The use of positional information in the modeling of plants. In: Proceedings of the 28th Annual Conference on Computer Graphics and Interactive Techniques. SIGGRAPH'OI. 2001, 289-300.
  • 6Reffye d P, Edelin C, Francon J, Jaeger M, Puech C. Plant models faithful to botanical structure and development. ACM SIGGRAPH Computer Graphics, 1988,22(4): 151-158.
  • 7Weber J, Penn J. Creation and rendering of realistic trees. In: Proceedings of the 22nd Annual Conference on Computer Graphics and Interactive Techniques. SIGGRAPH'95. 1995, 119-128.
  • 8Lintermann B, Deussen O. Interactive modeling of plants. IEEE Computer Graphics and Applications, 1999, 19( I): 56--65.
  • 9Shlyakhter I, Rozenoer M, Dorsey J, Teller S. Reconstructing 3D tree models from instrumented photographs. IEEE Computer Graphics and Applications, 200 I, 21 (3): 53-61.
  • 10Quan L, Tan P, Zeng G, Yuan L, Wang J, Kang S. Image-based plant modeling. ACM Transactions on Graphics, 2006, 25(3): 599--604.

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