Projection-based method for analysis and generation on the multi-contact motion data = 제약 공간 투영 방법을 이용한 다 접촉 운동 데이타 분석과 생성

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When motion capture data is applied to virtual characters, the applied motion often exhibits geometric and physical errors, which necessitates a cumbersome refinement process. This paper present a novel framework to efficiently obtain a corrected motion as well as its supporting contact information from multi-contact motion capture data. To this end, first, we present a projective dynamics-based method for optimizing character motions. By carefully defining objective functions and constraints using differential representation of motions, we develop a highly efficient motion optimizer that can create geometrically and dynamically adjusted motions given reference motion data and contact information. Second, we develop a contact optimizer that finds a set of contacts that allows the motion optimizer to generate a motion that best follows the reference motion under dynamic and geometric constraints. This is achieved by iteratively improving the hypothesis on the best set of contacts by getting feedback from the motion optimizer. We demonstrate that our method significantly improves the naturalness of a wide range of motion capture data, from walking to rolling.
Advisors
Lee, Sung-Heeresearcher이성희researcher
Description
한국과학기술원 :문화기술대학원,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 문화기술대학원, 2019.2,[iv, 35 p. :]

Keywords

Chracter animation▼amotion capture▼amotion retargeting▼amulti-contact; 캐릭터 애니메이션▼a사람 행동 데이타▼a모션 리타겟팅▼a다 접촉 행동

URI
http://hdl.handle.net/10203/264628
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=841998&flag=dissertation
Appears in Collection
GCT-Theses_Ph.D.(박사논문)
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