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Creating Autonomous, Perceptive and Intelligent Virtual Humans in a Real-Time Virtual Environment

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Tsinghua Science and Technology 2011年第3期16卷 233-240页

作者：刘渭滨周亮邢薇薇刘幸奇袁保宗 Institute of Information Science Beijing Jiaotong University Beijing Key Laboratory of Advanced Information Science and Network Technology School of Software Engineering Beijing Jiaotong University

Creating realistic virtual humans has been a challenging objective in computer science research for some time. This paper describes an integrated framework for modeling virtual humans with a high level of autonomy. The framework seeks to reproduce human-like believable behavior and movement in virtual humans in a virtual environment. The framework includes a visual and auditory information perception module, a decision network based behavior decision module, and a hierarchical autonomous motion control module. These cooperate to model realistic autonomous individual behavior for virtual humans in real-time interactive virtual environments. The framework was tested in a simulated virtual environment system to demonstrate the ability of the framework to create autonomous, perceptive and intelligent virtual humans in real-time virtual environments.

关键词： virtual human autonomous behavior motion planning obstacle avoidance character animation behavior decision

Music-stylized hierarchical dance synthesis with user control

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虚拟现实与智能硬件（中英文） 2024年第5期6卷 339-357页

作者： Yanbo CHENG Yichen JIANG Yingying WANG Department of Computing and Software McMaster UniversityON L8S 4L8Canada

Background Synthesizing dance motions to match musical inputs is a significant challenge in animation *** to functional human motions,such as locomotion,dance motions are creative and artistic,often influenced by music,and can be independent body language *** choreography requires motion content to follow a general dance genre,whereas dance performances under musical influence are infused with diverse impromptu motion *** the high expressiveness and variations in space and time,providing accessible and effective user control for tuning dance motion styles remains an open *** In this study,we present a hierarchical framework that decouples the dance synthesis task into independent *** use a high-level choreography module built as a Transformer-based sequence model to predict the long-term structure of a dance genre and a low-level realization module that implements dance stylization and synchronization to match the musical input or user *** novel framework allows the individual modules to be trained *** of the decoupling,dance composition can fully utilize existing high-quality dance datasets that do not have musical accompaniments,and the dance implementation can conveniently incorporate user controls and edit motions through a decoder *** module is replaceable at runtime,which adds flexibility to the synthesis of dance *** Synthesized results demonstrate that our framework generates high-quality diverse dance motions that are well adapted to varying musical conditions and user controls.

关键词： Deep learning character animation Motion synthesis Motion stylization Multimodal synchronization User control

Graphical interface for motion editing using procedure visualization

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Science China(Information Sciences) 2011年第6期54卷 1227-1237页

作者： KWON Ji-Yong LEE In-Kwon Department of Computer Science Yonsei University

In this paper, we introduce an interface for motion editing that visualizes editing procedures. For intuitive understanding and construction of motion editing procedures, our system represents an editing element that produces modified motion from a given input motion as a graphical node, and enables user to construct a whole motion editing procedure by connecting the nodes with a few mouse interactions. The system provides both the 3D transform manipulator and the time-line slider for intuitive controlling of the parameters of each node. The user evaluation results show that our system is easy and intuitive to be used by users for editing of motion sequences.

关键词： motion editing procedural visualization graphical development environment animation system character animation

2-D SHAPE BLENDING OF NURBS CURVE SHAPES

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Computer Aided Drafting,Design and Manufacturing 1994年第1期4卷 13-19页

作者： Jin Xiaogang Bao Hujun Peng Qunsheng

A shape blending algorithm of 2-D curved shapes is presented in this paper. A curvedshape is represented by a closed Non-Uniform Rational B-Spline(NURBS). We determine the inter-mediate shapes by interpolating the intrinsic definitions of the initial and final control polygons. Thisalgorithm can avoid shrinkage resulted from linear vertex interpolation and produce smcoth intermedi-ate shapes. Aliasing problems can also be easily eliminated.

关键词： shape blending character animation NURBS