Exaggerating character motions using sub-Joint hierarchy

Ji Yong Kwon, In Kwon Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Motion capture cannot generate cartoon-style animation directly. We emulate the rubber-like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon-like movement. We achieve this using trajectory-based motion exaggeration while allowing the violation of link-length constraints. We extend this technique to obtain smooth, rubber-like motion by dividing the original links into shorter sub-links and computing the positions of joints using Bézier curve interpolation and a mass-spring simulation. This method is fast enough to be used in real time.

Original languageEnglish
Pages (from-to)1677-1686
Number of pages10
JournalComputer Graphics Forum
Volume27
Issue number6
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Animation
Rubber
Data acquisition
Interpolation
Trajectories

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design

Cite this

@article{45a9b23d980741e0bc8c0823964958d4,
title = "Exaggerating character motions using sub-Joint hierarchy",
abstract = "Motion capture cannot generate cartoon-style animation directly. We emulate the rubber-like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon-like movement. We achieve this using trajectory-based motion exaggeration while allowing the violation of link-length constraints. We extend this technique to obtain smooth, rubber-like motion by dividing the original links into shorter sub-links and computing the positions of joints using B{\'e}zier curve interpolation and a mass-spring simulation. This method is fast enough to be used in real time.",
author = "Kwon, {Ji Yong} and Lee, {In Kwon}",
year = "2008",
month = "1",
day = "1",
doi = "10.1111/j.1467-8659.2008.01177.x",
language = "English",
volume = "27",
pages = "1677--1686",
journal = "Computer Graphics Forum",
issn = "0167-7055",
publisher = "Wiley-Blackwell",
number = "6",

}

Exaggerating character motions using sub-Joint hierarchy. / Kwon, Ji Yong; Lee, In Kwon.

In: Computer Graphics Forum, Vol. 27, No. 6, 01.01.2008, p. 1677-1686.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Exaggerating character motions using sub-Joint hierarchy

AU - Kwon, Ji Yong

AU - Lee, In Kwon

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Motion capture cannot generate cartoon-style animation directly. We emulate the rubber-like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon-like movement. We achieve this using trajectory-based motion exaggeration while allowing the violation of link-length constraints. We extend this technique to obtain smooth, rubber-like motion by dividing the original links into shorter sub-links and computing the positions of joints using Bézier curve interpolation and a mass-spring simulation. This method is fast enough to be used in real time.

AB - Motion capture cannot generate cartoon-style animation directly. We emulate the rubber-like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon-like movement. We achieve this using trajectory-based motion exaggeration while allowing the violation of link-length constraints. We extend this technique to obtain smooth, rubber-like motion by dividing the original links into shorter sub-links and computing the positions of joints using Bézier curve interpolation and a mass-spring simulation. This method is fast enough to be used in real time.

UR - http://www.scopus.com/inward/record.url?scp=64549146249&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=64549146249&partnerID=8YFLogxK

U2 - 10.1111/j.1467-8659.2008.01177.x

DO - 10.1111/j.1467-8659.2008.01177.x

M3 - Article

VL - 27

SP - 1677

EP - 1686

JO - Computer Graphics Forum

JF - Computer Graphics Forum

SN - 0167-7055

IS - 6

ER -