2. Inferring and .. From-a-silhouette, 108 7.3.1 Silhouette segmentation and major branches

3. Positioning-organs-in, 115 7.5.1 Position and orientation of branches, p.115

A. Aras, B. Bas¸arankutbas¸arankut, C. Tolga, and B. Bülent¨ozgüç, 3d hair sketching for real-time dynamic & key frame animations. The Visual Computer, BIBLIOGRAPHY, vol.24, issue.7, pp.577-585, 2008.

L. Anca-alexe, M. Barthe, V. Cani, and . Gaildrat, Shape modeling by sketching using convolution surfaces, Pacific Graphics, 2005.

A. Alexe, V. Gaildrat, and L. Barthe, Interactive modelling from sketches using spherical implicit functions, Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa , AFRIGRAPH '04, pp.25-34, 2004.
DOI : 10.1145/1029949.1029953

J. Alex, Hybrid Sketching: A New Middle Ground between 2-and 3-D, 2005.

[. Anastacio, P. Prusinkiewicz, and M. C. Sousa, Sketch-based parameterization of lsystems using illustration-inspired construction lines, Eurographics Workshop on Sketch-Based Interfaces and Modeling, 2008.

A. Andre, S. Saito, and M. Nakajima, CrossSketch, Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, SBIM '07, pp.45-52, 2007.
DOI : 10.1145/1384429.1384442

[. Anastacio, M. C. Sousa, F. Samavati, and J. A. Jorge, Modeling plant structures using concept sketches, Proceedings of the 3rd international symposium on Non-photorealistic animation and rendering , NPAR '06, pp.105-113, 2006.
DOI : 10.1145/1124728.1124746

Y. [. Anjyo, T. Usami, and . Kurihara, A simple method for extracting the natural beauty of hair, Proceedings of ACM SIGGRAPH 1992, Computer Graphics Proceedings, Annual Conference Series, pp.111-120, 1992.

. Autodesk, Maya ncloth (software), 2008.

F. Bertails, B. Audoly, M. Cani, B. Querleux, F. Leroy et al., Super-helices for predicting the dynamics of natural hair, Proceedings of SIG- GRAPH 2006, 2006.
URL : https://hal.archives-ouvertes.fr/inria-00384718

F. Bertails, B. Audoly, B. Querleux, F. Leroy, J. Lévêque et al., Predicting natural hair shapes by solving the statics of flexible rods Eurographics, Eurographics, 2005.

T. Baudel, A mark-based interaction paradigm for free-hand drawing, Proceedings of the 7th annual ACM symposium on User interface software and technology , UIST '94, pp.185-192, 1994.
DOI : 10.1145/192426.192496

M. [. Bourguignon, G. Cani, and . Drettakis, Drawing for Illustration and Annotation in 3D, Computer Graphics Forum, vol.20, issue.3
DOI : 10.1111/1467-8659.00504

URL : https://hal.archives-ouvertes.fr/inria-00537507

H. Blum, A Transformation for Extracting New Descriptors of Shape, Weiant

. Dunn, Models for the Perception of Speech and Visual Form, pp.362-380, 1967.

A. Bouthors and F. Neyret, Modeling clouds shape, Eurographics, 2004.
URL : https://hal.archives-ouvertes.fr/inria-00537462

A. Bouthors, F. Neyret, and S. Lefebvre, Real-time realistic illumination and shading of stratiform clouds, Eurographics Workshop on Natural Phenomena, 2006.
URL : https://hal.archives-ouvertes.fr/inria-00402100

A. Bouthors, F. Neyret, N. Max, E. Bruneton, and C. Crassin, Interactive multiple anisotropic scattering in clouds, Proceedings of the 2008 symposium on Interactive 3D graphics and games , SI3D '08, 2008.
DOI : 10.1145/1342250.1342277

URL : https://hal.archives-ouvertes.fr/inria-00333007

J. Boissonnat and S. Oudot, Provably good sampling and meshing of surfaces, Graphical Models, vol.67, issue.5
DOI : 10.1016/j.gmod.2005.01.004

URL : https://hal.archives-ouvertes.fr/hal-00488829

A. Bernhardt, A. Pihuit, M. Cani, and L. Barthe, Matisse: Painting 2D regions for modeling free-form shapes, EUROGRAPHICS Workshop on Sketch-Based Interfaces and Modeling, pp.57-64, 2008.
URL : https://hal.archives-ouvertes.fr/inria-00336688

J. Bloomenthal and K. Shoemake, Convolution surfaces, ACM SIGGRAPH Computer Graphics, vol.25, issue.4, pp.251-256, 1991.
DOI : 10.1145/127719.122757

. Cga and . Cgal, Computational Geometry Algorithms Library

A. Forrester-cole, A. Golovinskiy, and . Limpaecher, Heather Stoddart Barros, Adam Finkelstein , Thomas Funkhouser, and Szymon Rusinkiewicz. Where do people draw lines?, Proc. SIGGRAPH), p.27, 2008.

J. Cohen, J. Hughes, R. Zeleznik, and H. Ko, Harold, Proceedings of the first international symposium on Non-photorealistic animation and rendering , NPAR '00, 2000.
DOI : 10.1145/340916.340927

J. Clottes, Chauvet cave (ca. 30,000 b.c.). in heilbrunn timeline of art history. new york: The metropolitan museum of art, 2000.

J. M. Cohen, L. Markosian, R. C. Zeleznik, J. F. Hughes, and R. Barzel, An interface for sketching 3D curves, Proceedings of the 1999 symposium on Interactive 3D graphics , SI3D '99, pp.17-21, 1999.
DOI : 10.1145/300523.300655

[. Company, A. Piquer, M. Contero, and F. Naya, A survey on geometrical reconstruction as a core technology to sketch-based modeling, Computers & Graphics, vol.29, issue.6, pp.892-904, 2005.
DOI : 10.1016/j.cag.2005.09.007

. Crytek, Crysis (software) http://crytek.com, 2007.

L. Chen, S. Saeyor, H. Dohi, and M. Ishizuka, A system of 3d hairstyle synthesis based on the wisp model. The Visual Computer, pp.159-170, 1999.

[. Araujo and J. Jorge, Blobmaker: Free-form modeling with variational implicit surfaces, Proceedings of the 12th Portuguese Computer Graphics Meeting, pp.17-26, 2003.

Y. [. Douady and . Couder, Phyllotaxis as a Dynamical Self Organizing Process Part I: The Spiral Modes Resulting from Time-Periodic Iterations, Journal of Theoretical Biology, vol.178, issue.3, pp.255-274, 1996.
DOI : 10.1006/jtbi.1996.0024

]. P. Dig83 and . Diggle, Statistical analysis of spatial point patterns, 1983.

P. Decaudin, D. Julius, J. Wither, L. Boissieux, A. Sheffer et al., Virtual Garments: A Fully Geometric Approach for Clothing Design, Computer Graphics Forum, vol.20, issue.1, p.25, 2006.
DOI : 10.1007/s00371-004-0256-0

URL : https://hal.archives-ouvertes.fr/inria-00337446

K. Dobashi, H. Kaneda, T. Yamashita, T. Okita, and . Nishita, A simple, efficient method for realistic animation of clouds, Proceedings of the 27th annual conference on Computer graphics and interactive techniques , SIGGRAPH '00, pp.19-28, 2000.
DOI : 10.1145/344779.344795

F. Durand, An invitation to discuss computer depiction, Proceedings of the second international symposium on Non-photorealistic animation and rendering , NPAR '02, pp.111-124, 2002.
DOI : 10.1145/508530.508550

[. Vinci, The notebooks of leonardo da vinci (2 vols), 1970.

B. Edwards, The New Drawing on the Right Side of the Brain, 2001.

A. Muhammad, S. A. Fahiem, F. Haq, and . Saleemi, A review of 3d reconstruction techniques from 2d orthographic line drawings, Geometric Modeling and Imaging, 2007. GMAI '07, pp.60-66, 2007.

A. Finkelstein and D. H. Salesin, Multiresolution curves, Proceedings of the 21st annual conference on Computer graphics and interactive techniques , SIGGRAPH '94, pp.261-268, 1994.
DOI : 10.1145/192161.192223

H. Fu, Y. Wei, C. Tai, and L. Quan, Sketching hairstyles, Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, SBIM '07, 2007.
DOI : 10.1145/1384429.1384439

G. Y. Gardner, Visual simulation of clouds, SIGGRAPH Proceedings, pp.297-303, 1985.

Y. Guédon, D. Barthélémy, Y. Caraglio, and E. Costes, Pattern Analysis in Branching and Axillary Flowering Sequences, Journal of Theoretical Biology, vol.212, issue.4, pp.481-520, 2001.
DOI : 10.1006/jtbi.2001.2392

. Google, Sketchup (software) http://sketchup.google.com, 2008.

[. Graphics, Leveller (software), 2008.

. Greenworks, Xfrog (software), 2008.

J. Hamm, Drawing Scenery: landscapes and seascapes, 1972.

I. [. Horst and . Beichel, A simple algorithm for efficient piecewise linear approximation of space curves, Proceedings of International Conference on Image Processing, pp.744-747, 1997.
DOI : 10.1109/ICIP.1997.638603

M. J. Harris, W. V. Baxter, T. Scheuermann, and A. Lastra, Simulation of cloud dynamics on graphics hardware, ACM SIGGRAPH 2005 Courses on , SIGGRAPH '05, pp.92-101, 2003.
DOI : 10.1145/1198555.1198793

N. [. Hadap and . Magnenat-thalmann, Interactive Hair Styler based on Fluid Flow, Computer Animation and Simulation '00, pp.87-100, 2000.
DOI : 10.1007/978-3-7091-6344-3_7

. Hallé and . Oldeman, Essai sur l'architecture et la dynamique de croissance des arbres tropicaux

D. D. Hoffman, Visual Intelligence, How We Create What We See, 1998.

A. Hertzmann and D. Zorin, Illustrating smooth surfaces, Proceedings of the 27th annual conference on Computer graphics and interactive techniques , SIGGRAPH '00, pp.517-526, 2000.
DOI : 10.1145/344779.345074

T. Igarashi and J. F. Hughes, Clothing manipulation, UIST '02: Proceedings of the 15th annual ACM symposium on User interface software and technology, pp.91-100, 2002.

T. Igarashi and J. F. Hughes, Smooth meshes for sketch-based freeform modeling, SIGGRAPH '06: ACM SIGGRAPH 2006 Courses, 2006.

[. Igarashi, S. Matsuoka, and H. Tanaka, Teddy: a sketching interface for 3d freeform design, SIGGRAPH '99: Proceedings of the 26th annual conference on Computer graphics and interactive techniques, pp.409-416, 1999.

]. T. Ioi06a, S. Ijiri, T. Owada, and . Igarashi, Seamless integration of initial sketching and subsequent detail editing in flower modeling, Proc. of Eurographics, pp.617-624, 2006.

]. T. Ioi06b, S. Ijiri, T. Owada, and . Igarashi, The sketch l-system: Global control of tree modeling using free-form strokes, Smart Graphics, p.138, 2006.

T. Ijiri, S. Owada, M. Okabe, and T. Igarashi, Floral diagrams and inflorescences, ACM Transactions on Graphics, vol.24, issue.3, pp.720-726, 2005.
DOI : 10.1145/1073204.1073253

. Jr, J. Joseph, and . Laviola, Sketching and gestures 101, SIGGRAPH '07: ACM SIGGRAPH 2007 courses, 2007.

M. Jones and R. Satherley, Using distance fields for object representation and rendering, Proceedings of the 19th Ann. Conf. of Eurographics (UK Chapter, pp.34-44, 2001.

A. Olga, J. F. Karpenko, and . Hughes, Smoothsketch: 3d free-form shapes from complex sketches, SIGGRAPH '06: ACM SIGGRAPH 2006 Papers, pp.589-598, 2006.

O. Karpenko, J. F. Hughes, and R. Raskar, Free-form sketching with variational implicit surfaces, Computer Graphics Forum, vol.18, issue.2, pp.585-594, 2002.
DOI : 10.1111/1467-8659.t01-1-00709

O. Karpenko, J. F. Hughes, and R. Raskar, Epipolar methods for multi-view sketching, Eurographics Workshop on Sketch-Based Interfaces and Modeling, pp.167-173, 2004.

[. Kim and U. Neumann, A thin shell volume for modeling human hair, Computer Animation, pp.121-128, 2000.

[. Kim and U. Neumann, Interactive multiresolution hair modeling and editing, Proceedings of ACM SIGGRAPH, pp.620-629, 2002.

[. Kong, Photo: Flaming hair -side view, 2005.

N. Samuel and . Kramer, History Begins at Sumer: Thirty Nine Firsts In Recorded History, 1988.

P. Kruszewski, An algorithm for sculpting trees, Computers & Graphics, vol.23, issue.5, pp.739-749, 1999.
DOI : 10.1016/S0097-8493(99)00096-5

D. Levin, The approximation power of moving least-squares, Mathematics of Computation, vol.67, issue.224, pp.1517-1531, 1998.
DOI : 10.1090/S0025-5718-98-00974-0

A. Lindenmayer, Mathematical models for cellular interactions in development I. Filaments with one-sided inputs, Journal of Theoretical Biology, vol.18, issue.3, pp.280-315, 1968.
DOI : 10.1016/0022-5193(68)90079-9

H. [. Lee and . Ko, Natural Hairstyle Modeling and Animation, Graphical Models, vol.63, issue.2, pp.67-85, 2001.
DOI : 10.1006/gmod.2001.0547

J. Joseph, R. C. Laviola, and . Zeleznik, Mathpad2: a system for the creation and exploration of mathematical sketches, SIGGRAPH '06: ACM SIGGRAPH 2006 Courses, 2006.

]. S. Mal05 and . Malik, A sketching interface for modeling and editing hairstyles, Sketch Based Interfaces and Modeling, pp.185-194, 2005.

S. [. Mao, K. Isobe, A. Anjyo, and . Imamiya, Sketchy hairstyles, CGI '05: Proceedings of the Computer Graphics International 2005, pp.142-147, 2005.

X. Mao, K. Kashio, H. Kato, and A. Imamiya, Interactive Hairstyle Modeling Using a Sketching Interface, ICCS '02: Proceedings of the International Conference on Computational Science-Part II, pp.131-140, 2002.
DOI : 10.1007/3-540-46080-2_14

P. [. Mech and . Prusinkiewicz, Visual models of plants interacting with their environment, Proceedings of the 23rd annual conference on Computer graphics and interactive techniques , SIGGRAPH '96, pp.397-410, 1996.
DOI : 10.1145/237170.237279

K. Mcculloh, J. Sperry, and F. Adler, Water transport in plants obeys Murray's law, Nature, vol.179, issue.6926, pp.939-942, 1038.
DOI : 10.1007/s004420100628

A. Mcnamara, A. Treuille, Z. Popovi´cpopovi´c, and J. Stam, Fluid control using the adjoint method, SIGGRAPH '04: ACM SIGGRAPH 2004 Papers, pp.449-456, 2004.

[. Munroe, Xkcd comic, 2008.

F. Neyret, Qualitative simulation of connective cloud formation and evolution, Eurographics Workshop on Computer Animation and Simulation (SCA), 1997.

T. [. Neubert, O. Franken, and . Deussen, Approximate image-based tree-modeling using particle flows, ACM Transactions on Graphics, vol.26, issue.3, p.88, 2007.
DOI : 10.1145/1276377.1276487

A. Nealen, T. Igarashi, O. Sorkine, and M. A. , Fibermesh: designing freeform surfaces with 3d curves, ACM Trans. Graph, vol.26, issue.3, 2007.

A. Orzan, A. Bousseau, H. Winnemöller, P. Barla, J. Thollot et al., Diffusion curves: A vector representation for smooth-shaded images, In ACM Transactions on Graphics, vol.27, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00840848

S. Owada, F. Nielsen, K. Nakazawa, and T. Igarashi, A sketching interface for modeling the internal structures of 3d shapes, SIGGRAPH '06: ACM SIGGRAPH, 2006.

[. Okabe, S. Owada, and T. Igarash, Interactive Design of Botanical Trees using Freehand Sketches and Example-based Editing, Computer Graphics Forum, vol.5, issue.1&2, pp.487-496, 2005.
DOI : 10.1111/j.1467-8659.2005.00874.x

[. Paris, H. Briceño, and F. Sillion, Capture of hair geometry from multiple images, Proceedings of the SIGGRAPH conference), 2004.
URL : https://hal.archives-ouvertes.fr/inria-00510161

]. J. Pea03 and . Peacock, La Mode du XX siecle, 2003.

[. Prusinkiewicz, R. James, and . Mech, Synthetic topiary, Proceedings of the 21st annual conference on Computer graphics and interactive techniques , SIGGRAPH '94, pp.351-358, 1994.
DOI : 10.1145/192161.192254

. Planetside, Terragen (software), 2008.

P. Prusinkiewicz, L. Mündermann, R. Karwowski, and B. Lane, The use of positional information in the modeling of plants, Proceedings of the 28th annual conference on Computer graphics and interactive techniques , SIGGRAPH '01, pp.289-300, 2001.
DOI : 10.1145/383259.383291

]. W. Pow98 and . Powell, Drawing Trees, 1998.

]. L. Pra97 and . Prasad, Morphological analysis of shapes, CNLS Newsletter, issue.139, 1997.

R. Pusch, F. Samavati, A. Nasri, and B. Wyvill, Improving the sketch-based interface, The Visual Computer, vol.17, issue.3, pp.9-11955, 2007.
DOI : 10.1007/s00371-007-0160-5

S. Rusinkiewicz, F. Cole, D. Decarlo, and A. Finkelstein, Line drawings from 3d models, SIGGRAPH '08: ACM SIGGRAPH 2008 classes, pp.1-356, 2008.

]. B. Rip79 and . Ripley, Simulating spatial patterns: dependent samples from a multivariate density, Applied Statistics, vol.28, pp.109-112, 1979.

A. Sheffer, J. Wither, M. Cani, and B. Thibert, Developable surfaces from arbitrary sketched boundaries, Eurographics Symposium on Geometry Processing
URL : https://hal.archives-ouvertes.fr/inria-00337445

P. J. Schneider, An algorithm for automatically fitting digitized curves Graphics gems, pp.612-626, 1990.

R. Sd04-]-tevfik-metin-sezgin and . Davis, Handling overtraced strokes in hand-drawn sketches, Making Pen-Based Interaction Intelligent and Natural. AAAI Fall Symposium, 2004.

]. C. Sgg-+-07, . Smith, Y. Godin, P. Guédon, E. Prusinkiewicz et al., Simulation of apple tree development using mixed statistical and biomechanical models, 5th International Workshop on Functional-Structural Plant Models, pp.31-32, 2007.

R. S. Smith, C. Kuhlemeier, and P. Prusinkiewicz, Inhibition fields for phyllotactic pattern formation: a simulation studyThis article is one of a selection of papers published on the Special Theme of Shoot Apical Meristems., Canadian Journal of Botany, vol.84, issue.11, pp.1635-1649, 2006.
DOI : 10.1139/b06-133

A. Sheffer, B. Lévy, M. Mogilnitsky, and A. Bogomyakov, ABF++: fast and robust angle based flattening, ACM Transactions on Graphics, vol.24, issue.2, pp.311-330, 2005.
DOI : 10.1145/1061347.1061354

URL : https://hal.archives-ouvertes.fr/inria-00105689

M. [. Shlyakhter, J. Rozenoer, S. Dorsey, and . Teller, Reconstructing 3D tree models from instrumented photographs, IEEE Computer Graphics and Applications, vol.21, issue.1, pp.53-61, 2001.
DOI : 10.1109/38.920627

J. Schpok, J. Simons, D. S. Ebert, and C. Hansen, A real-time cloud modeling , rendering, and animation system, Symposium on Computer Animation, pp.160-166

E. Ivan and . Sutherland, Sketchpad: A Man-Machine Graphical Communication System, Proceedings of the 1963 Spring Joint Computer Conference AFIPS Conference Proceedings, pp.329-346, 1963.

R. Schmidt, B. Wyvill, and E. Galin, Interactive implicit modeling with hierarchical spatial caching, International Conference on Shape Modeling and Applications 2005 (SMI' 05), pp.104-113, 2005.
DOI : 10.1109/SMI.2005.25

B. [. Schmidt, M. Wyvill, J. Sousa, and . Jorge, Shapeshop: Sketch-based solid modeling with blobtrees, Eurographics Workshop on Sketch-Based Interfaces and Modeling, pp.53-62, 2005.

A. Trembilski and A. Broßler, Surface-based efficient cloud visualisation for animation applications, Winter School of Computer Graphics (WSCG), pp.453-460, 2002.

M. Thorne, D. Burke, and M. Van-de-panne, Motion doodles, ACM Transactions on Graphics, vol.23, issue.3, pp.424-431, 2004.
DOI : 10.1145/1015706.1015740

E. Turquin, M. Cani, and J. Hughes, Sketching garments for virtual characters, Eurographics Workshop on Sketch-Based Interfaces and Modeling. Eurographics, 2004.
URL : https://hal.archives-ouvertes.fr/inria-00510171

A. Treuille, A. Mcnamara, Z. Popovi´cpopovi´c, and J. Stam, Keyframe control of smoke simulations, ACM Transactions on Graphics, vol.22, issue.3, pp.716-723, 2003.
DOI : 10.1145/882262.882337

J. Turquin, L. Wither, M. Boissieux, J. Cani, and . Hughes, A Sketch-Based Interface for Clothing Virtual Characters, IEEE Computer Graphics and Applications, vol.27, issue.1, 2006.
DOI : 10.1109/MCG.2007.1

URL : https://hal.archives-ouvertes.fr/hal-00171414

]. P. Tzw-+-07, G. Tan, J. Zeng, S. B. Wang, L. Kang et al., Image-based tree modeling, ACM Trans. Graph, vol.26, issue.3, p.87, 2007.

J. Wither, F. Bertails, and M. Cani, Realistic Hair from a Sketch, IEEE International Conference on Shape Modeling and Applications 2007 (SMI '07), 2007.
DOI : 10.1109/SMI.2007.31

URL : https://hal.archives-ouvertes.fr/inria-00337444

J. Wither, A. Bouthors, and M. Cani, Rapid sketch modeling of clouds, Eurographics Workshop on Sketch-Based Interfaces and Modeling (SBIM), 2008.
URL : https://hal.archives-ouvertes.fr/inria-00337442

J. Wither, F. Boudon, M. Cani, and C. Godin, Structure from silhouettes: a new paradigm for fast sketch-based design of trees, Computer Graphics Forum, vol.26, issue.2, 2008.
DOI : 10.1111/j.1467-8659.2009.01394.x

URL : https://hal.archives-ouvertes.fr/hal-00366289

K. Ward, F. Bertails, T. Kim, S. R. Marschner, M. Cani et al., A Survey on Hair Modeling: Styling, Simulation, and Rendering, IEEE Transactions on Visualization and Computer Graphics, vol.13, issue.2, pp.213-247, 2007.
DOI : 10.1109/TVCG.2007.30

URL : https://hal.archives-ouvertes.fr/hal-00171407

B. [. Wolin, T. Eoff, and . Hammond, Shortstraw: A simple and effective corner finder for polylines, Eurographics Workshop on Sketch-Based Interfaces and Modeling, 2008.

B. Wyvill, A. Guy, and E. Galin, Extending the CSG Tree. Warping, Blending and Boolean Operations in an Implicit Surface Modeling System, Computer Graphics Forum, vol.18, issue.2, pp.149-158, 1999.
DOI : 10.1111/1467-8659.00365

N. [. Ward, M. C. Galoppo, and . Lin, Modeling hair influenced by water and styling products, International Conference on Computer Animation and Social Agents (CASA), pp.207-214, 2004.

N. [. Ward, M. Galoppo, and . Lin, Interactive Virtual Hair Salon, PRESENCE: Teleoperators & Virtual Environments, 2007.
DOI : 10.1109/38.135883

R. Lance, A. R. Williams, and . Hanson, Perceptual completion of occluded surfaces, Computer Vision and Image Understanding: CVIU, vol.64, issue.1, pp.1-20, 1996.

[. Watanabe and T. Igarashi, A sketching interface for terrain modeling, ACM SIGGRAPH 2004 Posters on , SIGGRAPH '04, 2004.
DOI : 10.1145/1186415.1186500

J. Willats, Art and Representation: New Principles in the Analysis of Pictures, The Journal of Aesthetics and Art Criticism, vol.57, issue.1, 1997.
DOI : 10.2307/432082

H. Wang and L. Markosian, Free-form Sketch, Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, SBIM '07, pp.53-58, 2007.
DOI : 10.1145/1384429.1384443

E. [. Wei, L. Ofek, H. Quan, and . Shum, Modeling hair from multiple views, Proceedings of ACM SIGGRAPH'05, 2005.

J. Weber and J. Penn, Creation and rendering of realistic trees, Proceedings of the 22nd annual conference on Computer graphics and interactive techniques , SIGGRAPH '95, pp.119-128, 1995.
DOI : 10.1145/218380.218427

J. O. Wobbrock, A. D. Wilson, and Y. Li, Gestures without libraries, toolkits or training: a $1 recognizer for user interface prototypes, Proceedings of the 20th annual ACM symposium on User interface software and technology , UIST '07, pp.159-168, 2007.
DOI : 10.1145/1294211.1294238

]. B. Wyv92 and . Wyvill, Building models with implicit surfaces. Potentials, IEEE, vol.11, issue.3, pp.23-26, 1992.

X. [. Xu and . Yang, V-hairstudio: an interactive tool for hair design, IEEE Computer Graphics & Applications, vol.21, issue.3, pp.36-42, 2001.

]. Y. Yu01 and . Yu, Modeling realistic virtual hairstyles, Proceedings of Pacific Graphics'01, pp.295-304, 2001.

R. C. Zeleznik, K. P. Herndon, and J. F. Hughes, Sketch: an interface for sketching 3d scenes, SIGGRAPH '96: Proceedings of the 23rd annual conference on Computer graphics and interactive techniques, pp.163-170, 1996.

[. Zakaria and S. Shukri, A Sketch-and-Spray Interface for Modeling Trees, Smart Graphics, pp.23-35, 2007.
DOI : 10.1007/978-3-540-73214-3_3