Zhang Fengjun
Chinese Academy of Sciences
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Publication
Featured researches published by Zhang Fengjun.
international conference on pattern recognition | 2010
An Guocheng; Zhang Fengjun; Wang Hongan; Dai Guo-Zhong
Research on complex shape recognition showed that the shape context algorithm is sensitive to relative position variation of articulation. Aimed at this problem, a shape recognition method is proposed based on local shape filling rate of various object silhouettes. We take each landmark point as a circle center and use as its radius. Then, under a particular radius, the ratio between the covered silhouette pixels and the total pixels is defined as local shape filling rate. Thus, different radius may form different local shape filling rates. All landmark points with different radius will constitute a characteristic matrix which can effectively reflects the entire statistical property of the object shape. Experiments on a variety of shape databases show that the novel method is insensitive to articulation and less influenced by the number of landmark points, so our algorithm has strong power in describing object details.
SCIENTIA SINICA Informationis | 2016
Zhang Fengjun; Dai Guo-Zhong; Peng Xiaolan
Human computer interaction is one of the core technologies of virtual reality, which has an important significance on promoting the widely use of virtual reality and improving the user experience. Due to the development of various sensors and hardwares, human computer interaction technology in virtual reality has made remarkable progress. This paper firstly introduces the paradigm of human computer interaction in virtual reality, and then makes a summary about the main research contents and development trends of various virtual reality and augmented reality technologies, including 3D interaction, hand gesture interaction, handheld devices interaction, speech interaction, haptic interaction and multimodal interaction. Finally, the paper proposes some existing problems that need to be further studied.
Journal of Software | 2006
Ji Lian-En; Zhang Fengjun; Fu Yong-Gang; Dai Guo-Zhong
China Environmental Science | 2009
Mu Hui; Peng XinJing; Dai Ning; Chen Ji; Zhang Fengjun
Journal of Software | 2008
Wang Xi-Ying; Dai Guo-Zhong; Zhang Xi-Wen; Zhang Fengjun; Wang Xy
Archive | 2015
Zhang Fengjun; Liu Xiaoqing; Dai Zhijun
Archive | 2014
Zhang Fengjun; Cheng Long; Dai Zhijun; Wang Hongan; Dai Guo-Zhong
Archive | 2013
An Guocheng; Zhang Fengjun; Wang Hongan; Dai Guo-Zhong
Archive | 2016
Chen Hui; Zhu Yiming; Liu Mengmeng; Zhang Fengjun; Wang Hongan
Archive | 2014
Dai Zhijun; Tan Guofu; Zhang Fengjun; Wang Hongan; Dai Guo-Zhong