A Suggestive Interface for Sketch-based Character Posing

• Published in: Computer graphics forum 2015-10, Vol.34 (7), p.111-121
• Main Authors: Lv, P., Wang, P. J., Xu, W. W., Chai, J. X., Zhang, M. M., Pan, Z. G., Xu, M. L.
• Format: Article
• Language: English
• Subjects: Algorithms; Categories and Subject Descriptors (according to ACM CCS); Computer science; H.5.1 [Information Interfaces and Presentation]: Multimedia Information Systems-Animations; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Animation; Image processing systems; Image retrieval; Optimization; Sketches; Solution space; Studies; Three dimensional; Two dimensional; User interface
• ISSN: 0167-7055; 1467-8659
• DOI: 10.1111/cgf.12750

We present a user‐friendly suggestive interface for sketch‐based character posing. Our interface provides suggestive information on the sketching canvas in succession by combining image retrieval technique with 3D character posing, while the user is drawing. The system highlights the canvas region where the user should draw on and constrains the user's sketches in a reasonable solution space. This is based on an efficient image descriptor, which is used to measure the distance between the user's sketch and 2D views of 3D poses. In order to achieve faster query response, local sensitive hashing is involved in our system. In addition, sampling‐based optimization algorithm is adopted to synthesize and optimize the retrieved 3D pose to match the user's sketches the best. Experiments show that our interface can provide smooth suggestive information to improve the reality of sketching poses and shorten the time required for 3D posing.