Interactive Drawing Interface with 3D Animal Model Retrieval

In this work, we propose an interactive drawing guidance interface with 3D animal model retrieval that aims to help common users draw 2D animal sketches by exploring the desired animal models from pre-collected dataset. We first constructed an animal model dataset and generated line drawing images of 3D models from different viewpoints. Then we developed the drawing interface, which illustrates the retrieval models through matching freehand sketch inputs with line drawing images. We utilized the state-of-the-art sketch-based image retrieval algorithm for sketch matching that describes the appearance and relative positions of multiple objects by measuring compositional similarity. The proposed system could accurately retrieve similar partial images and provide the blended shadow guidance underlying the user's strokes to guide the drawing process. We verified that the proposed interface could improve the drawing quality of users' animal sketches from our user study.