A. , T. Mota, C. Stuke, I. Muhlich, M. And-barth et al., Analysis of superimposed oriented patterns, IEEE Trans. on Image Processing, vol.15, issue.12, pp.3690-3700, 2006.

A. , P. Cohen-steiner, D. Devillers, O. Evy, B. And-des-brun et al., Anisotropic polygonal remeshing, Proc. SIGGRAPH) 22, 2003.
URL : https://hal.archives-ouvertes.fr/inria-00099624

S. Bae, R. Balakrishnan, and K. And-singh, ILoveSketch, Proceedings of the 21st annual ACM symposium on User interface software and technology, UIST '08, 2008.
DOI : 10.1145/1449715.1449740

A. Bartolo, K. P. Camilleri, S. G. Fabri, J. C. Borg, and P. J. And-far-rugia, Scribbles to vectors, Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, SBIM '07, pp.123-130, 2007.
DOI : 10.1145/1384429.1384456

B. , M. Wang, C. Sheffer, A. And-singh, and K. , Design-driven quadrangulation of closed 3d curves, Proc. SIGGRAPH Asia) 31, p.178, 2012.

L. Biard, R. T. Farouki, and N. And-szafran, Construction of rational surface patches bounded by lines of curvature, Computer Aided Geometric Design, vol.27, issue.5, pp.359-371, 2010.
DOI : 10.1016/j.cagd.2010.03.002
URL : https://hal.archives-ouvertes.fr/hal-00463845

B. , D. Campen, M. Ebke, H. Alliez, P. And-kobbelt et al., Integer-grid maps for reliable quad meshing, Proc. SIGGRAPH), pp.1-9812, 2013.
URL : https://hal.archives-ouvertes.fr/hal-00862648

B. , D. Evy, B. Pietroni, N. Puppo, E. Silva et al., Quad-Mesh Generation and Processing: A Survey, Computer Graphics Forum, vol.32, issue.6, pp.51-76, 2013.

B. , D. Zimmer, H. And-kobbelt, and L. , Mixed-integer quadrangulation, Proc. SIGGRAPH) 28, 3, ? E. Iarussi et al, 2009.

B. , D. Zimmer, H. And-kobbelt, and L. , Practical mixedinteger optimization for geometry processing, Proceedings of the 7th international conference on Curves and Surfaces, pp.193-206, 2012.

B. , W. L. Henson, V. E. And-mccormick, and S. F. , A multigrid tutorial, Society for Industrial and Applied Mathematics, 2000.

C. , F. Isola, P. Freeman, W. T. Durand, F. And-adelson et al., Shapecollage: Occlusion-aware, example-based shape interpretation, European Conference on Computer Vision (ECCV), 2012.

D. , O. Vaxman, A. Panozzo, D. And-sorkine-hornung, and O. , Designing n-PolyVector fields with complex polynomials, Computer Graphics Forum (proceedings of EUROGRAPHICS Symposium on Geometry Processing), vol.33, issue.5, 2014.

D. Carmo and M. P. , Differential Geometry of Curves and Surfaces, 1976.

E. , K. And, and R. Steur, Sketching: Drawing Techniques for Product Designers, 2008.

E. , K. And, and R. Steur, Sketching: The Basics, 2011.

F. , G. And-hansford, and D. , Discrete coons patches, Computer Aided Geometric Design, vol.16, pp.691-700, 1999.

F. , M. Schr¨oderschr¨-schr¨oder, P. Desbrun, M. And-hoppe, and H. , Design of tangent vector fields, ACM Transactions on Graphics (Proc. SIG- GRAPH), vol.26, issue.3, 2007.

F. , W. T. And-adelson, and E. H. , The design and use of steerable filters, IEEE Trans. on Pattern Analysis and Machine Intelligence (PAMI), vol.13, pp.891-906, 1991.

G. , G. Jacob, and B. , Eigen v3, 2010.

H. , C. And, and M. Stephens, A Combined Corner and Edge Detection, Proceedings of The Fourth Alvey Vision Conference, 1988.

H. , A. And, and D. Zorin, Illustrating smooth surfaces, SIGGRAPH, pp.517-526, 2000.

I. , T. Matsuoka, S. And-tanaka, and H. , Teddy: A sketching interface for 3d freeform design, pp.409-416, 1999.

J. , P. And, and N. A. Carr, Repoussé: Automatic inflation of 2d artwork, Proc. of Sketch Based Interfaces and Modeling (SBIM), 2008.

K. , F. Nieser, M. And-polthier, and K. , Quadcover -surface parameterization using branched coverings, Computer Graphics Forum, vol.26, issue.3, pp.375-384, 2007.

K. , H. Lee, S. And-chui, and C. K. , Coherent line drawing, ACM Symp. on Non-photorealistic Animation and Rendering (NPAR), pp.43-50, 2007.

K. , H. Lee, S. And-chui, and C. K. , Flow-based image abstraction, IEEE Trans. on Visualization and Computer Graphics (TVCG), vol.15, issue.1, pp.62-76, 2009.

K. , M. And, and A. Witkin, Analyzing oriented patterns. Computer vision, graphics, and image processing 37, pp.362-385, 1987.

K. Kn¨oppel, F. Crane, K. Pinkall, U. And-schr¨oderschr¨-schr¨oder, and P. , Globally optimal direction fields, Proc. SIG- GRAPH) 32, p.59, 2013.

K. , J. E. And, and H. Kang, Image and video abstraction by coherence-enhancing filtering, Computer Graphics Forum Proceedings Eurographics, vol.30, issue.2, pp.593-602, 2011.

L. , S. And, and H. Hoppe, Appearance-space texture synthesis, Proc. SIGGRAPH) 25, 2006.

L. , Y. Xu, W. Wang, J. Zhu, L. Guo et al., General planar quadrilateral mesh design using conjugate direction field, Proc. SIGGRAPH Asia), p.140, 2011.

L. , J. Popov, S. Bousseau, A. Agrawala, M. And-drettakis et al., Depicting stylized materials with vector shade trees, Proc. SIGGRAPH) 32, 2013.

M. , P. And, and M. S. Landy, Observer biases in the 3D interpretation of line drawings, Vision research, vol.38, issue.18, pp.2817-2832, 1998.

N. , A. Igarashi, T. Sorkine, O. And-alexa, and M. , Fibermesh: Designing freeform surfaces with 3d curves, Proc. SIGGRAPH), 2007.

N. , D. Rusinkiewicz, S. Davis, J. And-ramamoorthi, and R. , Efficiently combining positions and normals for precise 3d geometry, Proc. SIGGRAPH), p.3, 2005.

N. , G. Hornung, A. Sumner, R. W. Simmons, M. And et al., Topology-driven vectorization of clean line drawings, ACM Transactions on Graphics, vol.32, issue.1 4, 2013.

O. , G. Kara, and L. B. , Beautification of design sketches using trainable stroke clustering and curve fitting, IEEE Trans. on Visualization and Computer Graphics (TVCG), vol.17, issue.5, pp.694-708, 2011.

P. , D. Puppo, E. Tarini, M. And-sorkine-hornung, and O. , Frame fields: Anisotropic and non-orthogonal cross fields, Proc. SIGGRAPH) 33, 4. PIPES, A. 2007. Drawing for Designers, 2014.

R. , N. Li, W. C. Evy, B. Sheffer, A. And-alliez et al., Periodic global parameterization, ACM Transactions on Graphics, vol.25, issue.4, pp.1460-1485, 2006.
URL : https://hal.archives-ouvertes.fr/inria-00104853

R. , N. Vallet, B. Alonso, L. And-levy, and B. , Geometry-aware direction field processing, ACM Transactions on Graphics, vol.29, issue.1 1, 2009.
URL : https://hal.archives-ouvertes.fr/inria-00547716

R. , N. Vallet, B. Li, W. C. And-l-´-evy, B. Schmidt et al., N-symmetry direction field design On expert performance in 3D curve-drawing tasks, Proc. Symp. Sketch- Based Interfaces and Modeling (SBIM), 2008.

C. Shao, A. Bousseau, A. Sheffer, and K. And-singh, CrossShade, Proc. SIGGRAPH) 31, p.45, 2012.
DOI : 10.1145/2185520.2185541
URL : https://hal.archives-ouvertes.fr/hal-00703202

S. , D. Ben-chen, M. , ?. Cad´ikcad´ik, M. Whited et al., Textoons: Practical texture mapping for hand-drawn cartoon animations, Proc. Symp. on Non-photorealistic Animation and Rendering (NPAR), pp.75-83, 2011.

S. , D. Dingliana, J. And, C. , and S. , LazyBrush: Flexible painting tool for hand-drawn cartoons, Proc. EUROGRAPHICS) 28, 2009.

S. , D. Kavan, L. , ?. Cad´ikcad´ik, M. Jamri?kajamri?jamri?ka et al., Inkand-ray: Bas-relief meshes for adding global illumination effects to handdrawn characters, ACM Transaction on Graphics, vol.33, 2014.

V. , R. Barla, P. Fleming, R. W. And-granier, and X. , Surface flows for image-based shading design On the implementation of an interior-point filter line-search algorithm for large-scale nonlinear programming, Proc. SIGGRAPH), pp.1-94, 2006.

W. Winnem¨oller, H. Orzan, A. Boissieux, L. And-thollot, and J. , Texture design and draping in 2d images, Proc. Symp. on Rendering), p.4, 2009.

X. , B. Chang, W. Sheffer, A. Bousseau, A. Mccrae et al., True2form: 3d curve networks from 2d sketches via selective regularization, Proc. SIG- GRAPH) 33, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01060850

Z. , Y. Zou, M. Carr, N. And-ju, and T. , A general and efficient method for finding cycles in 3d curve networks, Proc. SIGGRAPH Asia) 32, 2013.