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Simulation of Facial Muscle Actions Based on Rational Free Form Deformations
Author(s) -
Kalra Prem,
Mangili Angelo,
Thalmann Nadia Magnenat,
Thalmann Daniel
Publication year - 1992
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1130059
Subject(s) - action (physics) , computer science , coding (social sciences) , unit (ring theory) , facial muscles , computer graphics (images) , facial expression , computer vision , artificial intelligence , mathematics , communication , psychology , physics , statistics , mathematics education , quantum mechanics
This paper describes interactive facilities for simulating abstract muscle actions using Rational Free Form Deformations (RFFD). The particular muscle action is simulated as the displacement of the control points of the control‐unit for an RFFD defined on a region of interest. One or several simulated muscle actions constitute a Minimum Perceptible Action (MPA), which is defined as the atomic action unit, similar to Action Unit (AU) of the Facial Action Coding System (FACS), to build an expression.