| Popis: |
Fascinating articulated animations can be created from character illustrations using commercial tools such as Live2D or spine. However, to compose articulated deformable models, artists have to draw each body part separately or segment input illustrations into several body parts manually. In this paper, we present an efficient technique for the segmentation of character illustrations with simple user interactions. The user first draws strokes (i.e., scribbles) on an input illustration to roughly specify body parts, and then the system segments the input character accordingly. Unlike an existing method for this interactive segmentation, our method has the following three advantages. First, our method recognizes weak colored edges as body-part boundaries, which can be missed by the existing method. Second, it lets the user directly specify body-part boundaries around articulations, which are not necessarily image edges and thus often missed by the existing method. Third, our method automatically enlarges body parts around articulations so that adjacent body parts have some overlaps and the resultant character models can be animated without exhibiting gaps between adjacent body parts. We demonstrate that the proposed system enables more efficient segmentation of character illustrations than the conventional technique. |
