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Volume 16, Issue 3
Character Modelling with Sketches and ODE-Based Shape Creation

Ouwen Li, Haibin Fu, Shaojun Bian, Xiaosong Yang, Xiaogang Jin, Andres Iglesias, Algirdas Noreika, Lihua You & Jian Jun Zhang

Numer. Math. Theor. Meth. Appl., 16 (2023), pp. 720-751.

Published online: 2023-08

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  • Abstract

Character models have enormous applications in industry. Efficient creation of detailed character models is an important topic. This paper proposes a new and easy-to-use technique to quickly create detailed character models from sketches. The proposed technique consists of two main components: primitive deformer and shape generators. With this technique, 2D silhouette contours of a character model are drawn or extracted from an image or sketch. Then, proper geometric primitives are selected and aligned with the corresponding 2D silhouette contours. After that, a primitive deformer is used to create a base mesh and three shape generators are used to add 3D details to the base mesh. The primitive deformer and three shape generators are developed from ODE-driven deformations. The primitive deformer deforms the aligned geometric primitives to exactly match the 2D silhouette contours in one view plane and obtains a base mesh of a character model consisting of deformed primitives. The shape generators are used to add 3D details to the base mesh by creating local 3D models. The experimental results demonstrate that the new technique can quickly create detailed 3D character models from sketches with few manual operations. The new technique is physics-based and easy to learn and use.

  • AMS Subject Headings

15A12, 65F10, 65F15

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{NMTMA-16-720, author = {Li , OuwenFu , HaibinBian , ShaojunYang , XiaosongJin , XiaogangIglesias , AndresNoreika , AlgirdasYou , Lihua and Zhang , Jian Jun}, title = {Character Modelling with Sketches and ODE-Based Shape Creation}, journal = {Numerical Mathematics: Theory, Methods and Applications}, year = {2023}, volume = {16}, number = {3}, pages = {720--751}, abstract = {

Character models have enormous applications in industry. Efficient creation of detailed character models is an important topic. This paper proposes a new and easy-to-use technique to quickly create detailed character models from sketches. The proposed technique consists of two main components: primitive deformer and shape generators. With this technique, 2D silhouette contours of a character model are drawn or extracted from an image or sketch. Then, proper geometric primitives are selected and aligned with the corresponding 2D silhouette contours. After that, a primitive deformer is used to create a base mesh and three shape generators are used to add 3D details to the base mesh. The primitive deformer and three shape generators are developed from ODE-driven deformations. The primitive deformer deforms the aligned geometric primitives to exactly match the 2D silhouette contours in one view plane and obtains a base mesh of a character model consisting of deformed primitives. The shape generators are used to add 3D details to the base mesh by creating local 3D models. The experimental results demonstrate that the new technique can quickly create detailed 3D character models from sketches with few manual operations. The new technique is physics-based and easy to learn and use.

}, issn = {2079-7338}, doi = {https://doi.org/10.4208/nmtma.OA-2022-0172}, url = {http://global-sci.org/intro/article_detail/nmtma/21964.html} }
TY - JOUR T1 - Character Modelling with Sketches and ODE-Based Shape Creation AU - Li , Ouwen AU - Fu , Haibin AU - Bian , Shaojun AU - Yang , Xiaosong AU - Jin , Xiaogang AU - Iglesias , Andres AU - Noreika , Algirdas AU - You , Lihua AU - Zhang , Jian Jun JO - Numerical Mathematics: Theory, Methods and Applications VL - 3 SP - 720 EP - 751 PY - 2023 DA - 2023/08 SN - 16 DO - http://doi.org/10.4208/nmtma.OA-2022-0172 UR - https://global-sci.org/intro/article_detail/nmtma/21964.html KW - Sketch-based character modelling, shape generators, ordinary differential equations, finite difference solution. AB -

Character models have enormous applications in industry. Efficient creation of detailed character models is an important topic. This paper proposes a new and easy-to-use technique to quickly create detailed character models from sketches. The proposed technique consists of two main components: primitive deformer and shape generators. With this technique, 2D silhouette contours of a character model are drawn or extracted from an image or sketch. Then, proper geometric primitives are selected and aligned with the corresponding 2D silhouette contours. After that, a primitive deformer is used to create a base mesh and three shape generators are used to add 3D details to the base mesh. The primitive deformer and three shape generators are developed from ODE-driven deformations. The primitive deformer deforms the aligned geometric primitives to exactly match the 2D silhouette contours in one view plane and obtains a base mesh of a character model consisting of deformed primitives. The shape generators are used to add 3D details to the base mesh by creating local 3D models. The experimental results demonstrate that the new technique can quickly create detailed 3D character models from sketches with few manual operations. The new technique is physics-based and easy to learn and use.

Ouwen Li, Haibin Fu, Shaojun Bian, Xiaosong Yang, Xiaogang Jin, Andres Iglesias, Algirdas Noreika, Lihua You & Jian Jun Zhang. (2023). Character Modelling with Sketches and ODE-Based Shape Creation. Numerical Mathematics: Theory, Methods and Applications. 16 (3). 720-751. doi:10.4208/nmtma.OA-2022-0172
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