research-article

Differential blending for expressive sketch-based posing

Authors:

A. Cengiz Öztireli,

Boris Dalstein,

Robert W. Sumner,

Markus GrossAuthors Info & Claims

SCA '13: Proceedings of the 12th ACM SIGGRAPH/Eurographics Symposium on Computer Animation

Pages 155 - 164

https://doi.org/10.1145/2485895.2485916

Published: 19 July 2013 Publication History

Abstract

Generating highly expressive and caricatured poses can be difficult in 3D computer animation because artists must interact with characters indirectly through complex character rigs. Furthermore, since caricatured poses often involve large bends and twists, artifacts arise with traditional skinning algorithms that are not designed to blend large, disparate rotations and cannot represent extremely large rotations. To overcome these problems, we introduce a differential blending algorithm that can successfully encode and blend large transformations, overcoming the inherent limitation of previous skeletal representations. Based on this blending method, we illustrate a sketch-based interface that supports curved bones and implements the line-of-action concept from hand-drawn animation to create expressive poses in 3D animation. By interpolating stored differential transformations across temporal keyframes, our system also generates caricatured animation. We present a detailed technical analysis of our differential blending algorithm and show several posing and animation results created using our system to demonstrate the utility of our method in practice.

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Cited By

Gal RVinker YAlaluf YBermano ACohen-Or DShamir AChechik G(2024)Breathing Life Into Sketches Using Text-to-Video Priors2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)10.1109/CVPR52733.2024.00414(4325-4336)Online publication date: 16-Jun-2024
https://doi.org/10.1109/CVPR52733.2024.00414
Gouvatsos AXiao Z(2024)Sketch-Based Posing for 3D AnimationEncyclopedia of Computer Graphics and Games10.1007/978-3-031-23161-2_47(1663-1672)Online publication date: 5-Jan-2024
https://doi.org/10.1007/978-3-031-23161-2_47
Li TShi RKanai T(2021)MultiResGNet: Approximating Nonlinear Deformation via Multi‐Resolution GraphsComputer Graphics Forum10.1111/cgf.14265340:2(537-548)Online publication date: 4-Jun-2021
https://doi.org/10.1111/cgf.142653
Show More Cited By

Index Terms

Differential blending for expressive sketch-based posing
1. Computing methodologies
  1. Computer graphics
    1. Animation

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Published In

cover image ACM Conferences

SCA '13: Proceedings of the 12th ACM SIGGRAPH/Eurographics Symposium on Computer Animation

July 2013

225 pages

ISBN:9781450321327

DOI:10.1145/2485895

Conference Chairs:
Jinxiang Chai
Texas A&M University
,
Yizhou Yu
University of Hong Kong, China
,
Program Chairs:
Theodore Kim
University of California, Santa Barbara
,
Robert Sumner
Disney Research Zurich, Switzerland

Copyright © 2013 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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SIGGRAPH: ACM Special Interest Group on Computer Graphics and Interactive Techniques
EUROGRAPHICS: The European Association for Computer Graphics

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 19 July 2013

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SCA '13

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SIGGRAPH
EUROGRAPHICS

SCA '13: The ACM SIGGRAPH / Eurographics Symposium on Computer Animation

July 19 - 21, 2013

California, Anaheim

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SCA '13 Paper Acceptance Rate 20 of 57 submissions, 35%;

Overall Acceptance Rate 183 of 487 submissions, 38%

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Cited By

Gal RVinker YAlaluf YBermano ACohen-Or DShamir AChechik G(2024)Breathing Life Into Sketches Using Text-to-Video Priors2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)10.1109/CVPR52733.2024.00414(4325-4336)Online publication date: 16-Jun-2024
https://doi.org/10.1109/CVPR52733.2024.00414
Gouvatsos AXiao Z(2024)Sketch-Based Posing for 3D AnimationEncyclopedia of Computer Graphics and Games10.1007/978-3-031-23161-2_47(1663-1672)Online publication date: 5-Jan-2024
https://doi.org/10.1007/978-3-031-23161-2_47
Li TShi RKanai T(2021)MultiResGNet: Approximating Nonlinear Deformation via Multi‐Resolution GraphsComputer Graphics Forum10.1111/cgf.14265340:2(537-548)Online publication date: 4-Jun-2021
https://doi.org/10.1111/cgf.142653
Yuan YLai YWu TGao LLiu L(2021)A Revisit of Shape Editing Techniques: From the Geometric to the Neural ViewpointJournal of Computer Science and Technology10.1007/s11390-021-1414-936:3(520-554)Online publication date: 31-May-2021
https://doi.org/10.1007/s11390-021-1414-9
Corda FThiery JLivesu MPuppo EBoubekeur TScateni R(2020)Real‐Time Deformation with Coupled Cages and SkeletonsComputer Graphics Forum10.1111/cgf.1390039:6(19-32)Online publication date: 30-Jan-2020
https://doi.org/10.1111/cgf.13900
Toothman NNeff M(2019)Spring Rigs for SkinningProceedings of the 12th ACM SIGGRAPH Conference on Motion, Interaction and Games10.1145/3359566.3360074(1-10)Online publication date: 28-Oct-2019
https://dl.acm.org/doi/10.1145/3359566.3360074
Ciccone LÖztireli CSumner R(2019)Tangent-space optimization for interactive animation controlACM Transactions on Graphics10.1145/3306346.332293838:4(1-10)Online publication date: 12-Jul-2019
https://dl.acm.org/doi/10.1145/3306346.3322938
Cetinaslan OOrvalho VWalczak KZachmann GFlotyński JKiyokawa KThalmann D(2018)Direct manipulation of blendshapes using a sketch-based interfaceProceedings of the 23rd International ACM Conference on 3D Web Technology10.1145/3208806.3208811(1-10)Online publication date: 20-Jun-2018
https://dl.acm.org/doi/10.1145/3208806.3208811
Koyama YGoto MMandryk RHancock MPerry MCox A(2018)OptiMoProceedings of the 2018 CHI Conference on Human Factors in Computing Systems10.1145/3173574.3173735(1-12)Online publication date: 21-Apr-2018
https://dl.acm.org/doi/10.1145/3173574.3173735
Toothman NNeff MTeran JZheng CThomaszewski BYin K(2017)Attachment-based character deformationProceedings of the ACM SIGGRAPH / Eurographics Symposium on Computer Animation10.1145/3099564.3108161(1-2)Online publication date: 28-Jul-2017
https://dl.acm.org/doi/10.1145/3099564.3108161
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