Remote video conferencing systems (RVCS) are widely adopted in personal and professional communication. However, they often lack the co-presence experience of in-person meetings. This is largely due to the absence of intuitive visual cues and clear spatial relationships among remote participants, which can lead to speech interruptions and loss of attention. This paper presents ChatDirector, a novel RVCS that overcomes these limitations by incorporating space-aware visual presence and speech-aware attention transition assistance. ChatDirector employs a real-time pipeline that converts participants' RGB video streams into 3D portrait avatars and renders them in a virtual 3D scene. We also contribute a decision tree algorithm that directs the avatar layouts and behaviors based on participants' speech states. We report on results from a user study (N=16) where we evaluated ChatDirector. The satisfactory algorithm performance and complimentary subject user feedback imply that ChatDirector significantly enhances communication efficacy and user engagement.
机构:
Wuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
Natl Univ Def Technol, State Key Lab High Performance Comp, Changsha, Hunan, Peoples R ChinaWuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
He, Shuibing
Liu, Yan
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机构:
Hunan Univ, Coll Comp Sci & Elect Engn, Changsha, Hunan, Peoples R ChinaWuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
Liu, Yan
Wang, Yang
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机构:
Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaWuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
Wang, Yang
Sun, Xian-He
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机构:
IIT, Dept Comp Sci, Chicago, IL 60616 USAWuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
Sun, Xian-He
Huang, Chuanhe
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机构:
Wuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R ChinaWuhan Univ, State Key Lab Software Engn, Comp Sch, Wuhan, Hubei, Peoples R China
Huang, Chuanhe
[J].
INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS,
2016,
30
(04):
: 396
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410