| Direct manipulation blendshapes. | |
| | |
MedLine Citation:
|
PMID: 20650727 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
This paper introduces a simple direct manipulation algorithm for the popular blendshape facial animation approach. As is the case for body animation, direct manipulation of blendshape models is an inverse problem: when a single vertex is moved, the system must infer the movement of other points. The key to solving the inverse problem is the observation that the blendshape sliders are a semantic parameterization -- the corresponding blendshape targets have clear, interpretable functions. Distance in "slider space'' is easily computed and provides the necessary regularization for the inverse problem: The change in semantic position is minimized subject to interpolating the artist's direct manipulations. We give empirical and mathematical demonstrations that a single direct manipulation edit is often the equivalent of multiple slider edits, but the converse is also true, confirming the principle that both editing modes should be supported. |
| | |
Authors:
|
J P Lewis; Ken-ichi Anjyo |
Related Documents
:
|
7128657 - A developmental study of adults' performance on traditional and practical problem-solvi... 16846967 - Incentives improve performance on both incremental and insight problem solving. 15072517 - Aggression-related hostility bias and social problem-solving deficits in adult males wi... 17162507 - Why does placing the question before an arithmetic word problem improve performance? a ... 8179447 - Disseminated cutaneous cryptococcosis. comparison of clinical manifestations in the pre... 10113487 - Medicaid home and community-based waivers for acquired immunodeficiency syndrome patients. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: IEEE computer graphics and applications Volume: 30 ISSN: 1558-1756 ISO Abbreviation: IEEE Comput Graph Appl Publication Date: 2010 Jul-Aug |
Date Detail:
|
Created Date: 2010-07-23 Completed Date: 2010-10-28 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9881869 Medline TA: IEEE Comput Graph Appl Country: United States |
Other Details:
|
Languages: eng Pagination: 42-50 Citation Subset: IM |
Affiliation:
|
Victoria University, New Zealand. zilla@computer.org |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Biomechanics Computer Graphics* Computer Simulation Face / anatomy & histology* Facial Expression Humans Image Processing, Computer-Assisted / methods* Models, Biological* Principal Component Analysis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Real-time realistic skin translucency.
Next Document: Modeling short-term dynamics and variability for realistic interactive facial animation.