期刊文献+

面向广电节目的虚拟人手语合成显示平台研究 被引量:4

Gesture Synthesis Based on Virtual Newscaster for Broadcast TV News Programs
下载PDF
导出
摘要 基于中国手语合成技术的虚拟人手语视频显示平台技术是一个全新的课题.为了满足广电新闻节目对手势运动流畅性要求,实现了一种上下文相关的手势运动平滑算法,该方法能够充分利用前后两帧的差异来实现手势运动的平滑过渡,其视觉感观效果较传统插值算法更加平滑自然;同时提出了一种基于统计和规则相结合的手势运动重定向算法,在统计方法的基础上针对不同骨架大小以及运动特性进行规则约束,使得标准模型手势运动数据应用到新模型上而不失其准确性;最后,通过扩展基本手语词表达形式并基于alpha融合技术实现了面向广电新闻节目的虚拟人手语合成显示平台并取得很好的结果. How to develop avatar displaying system based on Chinese sign language synthesis technology for TV news programs is a novel task. However, the majority of existing displaying systems working on Chinese sign language synthesis concentrate on mapping system which automatically converts Chinese text to some sign that the deaf can understand well and it doesn't implement such displaying system. In this paper, an improved context-sensitive algorithm of gesture animation is presented. It can effectively utilize the differentiae of the consecutive key frames and make the avatars' gesture motion more natural and smooth than traditional algorithms. The authors propose a motion retargeting algorithm based on statistics and regulations for avatars' gesture animation. It uses regulations based on statistics, and considers the differentiae of skeleton in size and the features of gesture motion between virtual models, which have the similar skeleton topology. It can improve the accuracy of gesture motion data when transferring the standard avatar's gesture motion data to the new model without rectifying the standard model's gesture motion data by people using specified software. Finally, by extending the forms of basic gesture words' representation and adopting the alpha blending technique, a displaying system based on Chinese sign language synthesis technology for TV news programs has been effectively implemented.
出处 《计算机研究与发展》 EI CSCD 北大核心 2009年第11期1893-1899,共7页 Journal of Computer Research and Development
基金 国家"八六三"高技术研究发展计划基金项目(2009AA01Z320) 国家自然科学基金重大研究计划项目(90820303) 国家自然科学基金项目(60775027)~~
关键词 虚拟人 手语合成 运动平滑 重定向 alpha融合 avatar synthesis of sign language animation smoothing motion retargeting alpha blending
  • 相关文献

参考文献5

二级参考文献31

  • 1Cassell Justine,Pelachaud Catherine et al.Animated conversation:Rule-based generation of facial expression,gesture & spoken intonation for multiple conversational agents.In:Proceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques (SIGGRAPH94),1994,413~420
  • 2Joint Research & Development Laboratory for Advanced Computer and Communication Technologies.The Version 2.0 of Chinese Sign Language Synthesis System Achieve Success in Four Deaf Schools of Beijing.http://sy.jdl.ac.cn/yjjz/dt3.asp
  • 3Chen Yi-Qiang,Gao Wen,Zhu Ting-Shao,Ling Charles.Learning prosodic patterns for mandarin text to speech.The Journal of Intelligent Information System,2002,19(1):95~109
  • 4Cassell J,Vilhjalmsson H,Bickmore T..BEAT:The behavior expression animation toolkit.In:Proceedings of the International Conference on Computer Graphics and Interactive Techniques (SIGGRAPH'2001),2001,205~216
  • 5Kshirsagar S,Thalmann N,Vuilleme A,Thalmann D,Kamyab K,Mamdani E..Avatar markup language.In:Proceedings of 8th Eurographics Workshop on Virtual Environments,2002,169~177
  • 6Brand M,Hertzmann A..Style machines.In:Proceedings of the International Conference on Computer Graphics and Interactive Techniques (SIGGRAPH2000),2000,183~192
  • 7Li Yan,Wang Tian-Shu,Shum Heung-Yeung.Motion texture:A two level statistical model for character motion synthesis.In:Proceedings of the International Conference on Computer Graphics and Interactive Techniques (SIGGRAPH2002),2002,465~472
  • 8Badler N,Allbeck J,Zhao Li-Wei,Byun M..Representing and parameterizing agent behaviors.In:Proceedings of the Computer Animation 2002 Geneva,Switzerland,2002,133~144
  • 9T Noriko et al. An alternative method for building a database for American sign language. Technology and Persons with Disabilities Conf, Los Angeles, CA, 2000
  • 10J Lee. Using the 3D hand model to recognize stationary hand signs. International Journal of Modelling and Simulation, 1999, 19(1): 24~32

共引文献51

同被引文献26

引证文献4

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部