Interactive elastic motion editing through space-time position constraints

2013 ◽  
Vol 24 (3-4) ◽  
pp. 409-417 ◽  
Author(s):  
Siwang Li ◽  
Jin Huang ◽  
Mathieu Desbrun ◽  
Xiaogang Jin
Keyword(s):  
Space Time ◽  
Motion Editing ◽  
Time Position

Space-Time Position Operators

1970 ◽  
Vol 1 (4) ◽  
pp. 979-988 ◽  
Author(s):  
A. A. Broyles
Keyword(s):  
Space Time ◽  
Time Position

FOOTPRINT SAMPLING-BASED MOTION EDITING

2003 ◽  
Vol 03 (02) ◽  
pp. 311-324 ◽  
Author(s):  
WEIWEI XU ◽  
ZHIGENG PAN ◽  
MINGMIN ZHANG
Keyword(s):  
Real Time ◽  
Human Body ◽  
Inverse Kinematics ◽  
Space Time ◽  
Time Constraints ◽  
Biped Locomotion ◽  
B Spline ◽  
Displacement Mapping ◽  
Motion Editing ◽  
Motion Capturing

In this paper, we present a motion editing algorithm for the human biped locomotion captured by a motion capturing device. Our algorithm adopts footprints to describe the space-time constraints which should be satisfied during biped locomotion. The footprints are also used as an interface to enable the user to control the space-time constraints directly. A real-time Inverse Kinematics (IK) solver is adapted to compute the configuration of the human body and motion displacement mapping is then constructed using hierarchical B-spline. In order to facilitate the IK solver, we propose a sampling-based scheme to generate root trajectory. Hermit interpolation is then employed to generate the whole root trajectory. This scheme provides a speedup to root trajectory generation. The performance of our algorithm is further enhanced by the real-time IK solver, which directly computes the displacement angles as solution.

Space, Time and Einstein

2002 ◽  
Author(s):  
J. B. Kennedy
Keyword(s):  
Space Time

Spinors and Space-Time

1984 ◽  
Author(s):  
Roger Penrose ◽  
Wolfgang Rindler
Keyword(s):  
Space Time

Do Writing Directions Influence How People Map Space onto Time?

2018 ◽  
Vol 77 (4) ◽  
pp. 173-184
Author(s):  
Wenxing Yang ◽  
Ying Sun
Keyword(s):  
Mental Representations ◽  
Space Time ◽  
Horizontal Axis ◽  
Causal Role ◽  
Writing Systems ◽  
Temporal Cognition ◽  
Japanese Speakers ◽  
Psychological Experiments ◽  
Vertical Up

Abstract. The causal role of a unidirectional orthography in shaping speakers’ mental representations of time seems to be well established by many psychological experiments. However, the question of whether bidirectional writing systems in some languages can also produce such an impact on temporal cognition remains unresolved. To address this issue, the present study focused on Japanese and Taiwanese, both of which have a similar mix of texts written horizontally from left to right (HLR) and vertically from top to bottom (VTB). Two experiments were performed which recruited Japanese and Taiwanese speakers as participants. Experiment 1 used an explicit temporal arrangement design, and Experiment 2 measured implicit space-time associations in participants along the horizontal (left/right) and the vertical (up/down) axis. Converging evidence gathered from the two experiments demonstrate that neither Japanese speakers nor Taiwanese speakers aligned their vertical representations of time with the VTB writing orientation. Along the horizontal axis, only Japanese speakers encoded elapsing time into a left-to-right linear layout, which was commensurate with the HLR writing direction. Therefore, two distinct writing orientations of a language could not bring about two coexisting mental time lines. Possible theoretical implications underlying the findings are discussed.

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