A Sketching Interface for Sitting Pose Design in the Virtual Environment

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	A Sketching Interface for Sitting Pose Design in the Virtual Environment
	Lin, Juncong ; Igarashi, Takeo ; Mitani, Jun ; Liao, Minghong ; He, Ying ; Lin JC(林俊聪) ; Liao MH(廖明宏)
刊名	http://dx.doi.org/10.1109/TVCG.2012.61
	2012-11
关键词	INVERSE KINEMATICS ANIMATION FIGURES
英文摘要	[NRF2008IDM-IDM004-006]; 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.
语种	英语
出版者	IEEE T VIS COMPUT GR
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90339]
专题	软件学院－已发表论文
推荐引用方式 GB/T 7714	Lin, Juncong,Igarashi, Takeo,Mitani, Jun,et al. A Sketching Interface for Sitting Pose Design in the Virtual Environment[J]. http://dx.doi.org/10.1109/TVCG.2012.61,2012.
APA	Lin, Juncong.,Igarashi, Takeo.,Mitani, Jun.,Liao, Minghong.,He, Ying.,...&廖明宏.(2012).A Sketching Interface for Sitting Pose Design in the Virtual Environment.http://dx.doi.org/10.1109/TVCG.2012.61.
MLA	Lin, Juncong,et al."A Sketching Interface for Sitting Pose Design in the Virtual Environment".http://dx.doi.org/10.1109/TVCG.2012.61 (2012).