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Augmenting Physical Avatars using Projector-Based Illumination

delete2013-11-01
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PRE
AI
A
Amit H. Bermano *
A
Anselm Grundhöfer
D
Daisuke Iwai
B
Bernd Bickel
M
Markus Groß
DOI:10.1145/2508363.2508416delete
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Abstract

Abstract

En 中文
Animated animatronic figures are a unique way to give physical presence to a character. However, their movement and expressions are often limited due to mechanical constraints. In this paper, we propose a complete process for augmenting physical avatars using projector-based illumination, significantly increasing their expressiveness. Given an input animation, the system decomposes the motion into low-frequency motion that can be physically reproduced by the animatronic head and high-frequency details that are added using projected shading. At the core is a spatio-temporal optimization process that compresses the motion in gradient space, ensuring faithful motion replay while respecting the physical limitations of the system. We also propose a complete multi-camera and projection system, including a novel defocused projection and subsurface scattering compensation scheme. The result of our system is a highly expressive physical avatar that features facial details and motion otherwise unattainable due to physical constraints.
Keywords:
projector-camera systems
animatronics
AI Summary

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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

ACM Transactions on Graphics cover
ACM Transactions on Graphics
IF:
9.5
Papers:
4.7K
Citations:
3.6W

Organization

O
osaka university
Scholars:
2.6W
Papers: 1.9W
Citations: 30
S
swiss federal institutes of technology domain
Scholars:
9.0W
Papers: 8.0W
Citations: 163