Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/102126
Title: A sketching interface for sitting pose design in the virtual environment
Authors: Lin, Juncong
Igarashi, Takeo
Mitani, Jun
Liao, Minghong
He, Ying
Keywords: DRNTU::Engineering::Computer science and engineering::Computing methodologies::Computer graphics
Issue Date: 2012
Source: Lin, J. C., Igarashi, T., Mitani, J., Liao, M. H., & He, Y. (2012). A sketching interface for sitting pose design in the virtual environment. IEEE transactions on visualization and computer graphics, 18(11), 1979-1991.
Series/Report no.: IEEE transactions on visualization and computer graphics
Abstract: Character pose design is one of the most fundamental processes in computer graphics authoring. Although there are many research efforts in this field, most existing design tools consider only character body structure, rather than its interaction with the environment. This paper presents an intuitive sketching interface that allows the user to interactively place a 3D human character in a sitting position on a chair. Within our framework, the user sketches the target pose as a 2D stick figure and attaches the selected joints to the environment (e.g., the feet on the ground) with a pin tool. As reconstructing the 3D pose from a 2D stick figure is an ill-posed problem due to many possible solutions, the key idea in our paper is to reduce solution space by considering the interaction between the character and environment and adding physics constraints, such as balance and collision. Further, we formulated this reconstruction into a nonlinear optimization problem and solved it via the genetic algorithm (GA) and the quasi-Newton solver. With the GPU implementation, our system is able to generate the physically correct and visually pleasing pose at an interactive speed. The promising experimental results and user study demonstrates the efficacy of our method.
URI: https://hdl.handle.net/10356/102126
http://hdl.handle.net/10220/16545
ISSN: 1077-2626
DOI: 10.1109/TVCG.2012.61
Rights: © 2012 IEEE
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCSE Journal Articles

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