A 2D-to-3D Creative Cartoon Modeling System With Mobile AR

In recent years,augmented reality(AR)has shown great potential to enhance entertainment and education for children.Cartoon painting with pens and paper is a natural activity and an important experience for children to practice and express their creative skills.AR coloring book systems enhance the experience by providing a bridge between real-world colored drawings and digital cartoon characters.However,the 3D elements used in these systems are all manually modeled in advance,and the 2D drawings are also ready-made specific line drawings.This kind of systems limits the creativity of children because children cannot create their own personalized cartoon drawings and 3D models within the system.On the other hand,sketch-based modeling systems provide more opportunities for children to create personalized 3D content but have some common limitations.In this thesis,we present an interactive modeling system with mobile augmented reality(AR)that allows children to build 3D cartoon scenes creatively from their own 2D cartoon drawings on paper.The main contributions of our work are: present an automatic 2D-to-3D model creator on mobile devices that can directly convert personalized 2D drawings into 3D textured models with AR enabled,bringing life to flat cartoon drawings;propose a creative modeling pipeline including an automatic model creator and an interactive model editor,enabling children to construct personalized AR scenes from scratch;conduct an user study showing the comparison results among three cartoon systems.The results of our user study have shown that our system is easier to use compared with traditional sketch-based modeling systems and can give more play to children's innovations compared with AR coloring books.