An Evaluation Approach for a Physically-Based Sticky Lip Model †
Physically-based mouth models operate on the principle that a better mouth animation will be produced by simulating physically accurate behaviour of the mouth. In the development of these models, it is useful to have an evaluation approach which can be used to judge the effectiveness of a model and...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Computers |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-431X/8/1/24 |
| _version_ | 1817987293300916224 |
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| author | Matthew Leach Steve Maddock |
| author_facet | Matthew Leach Steve Maddock |
| author_sort | Matthew Leach |
| collection | DOAJ |
| description | Physically-based mouth models operate on the principle that a better mouth animation will be produced by simulating physically accurate behaviour of the mouth. In the development of these models, it is useful to have an evaluation approach which can be used to judge the effectiveness of a model and draw comparisons against other models and real-life mouth behaviour. This article presents a set of metrics which can be used to describe the motion of the lips, as well as a process for measuring these from video of real or simulated mouths, implemented using Python and OpenCV. As an example, the process is used to evaluate a physically-based mouth model focusing on recreating the stickiness effect of saliva between the lips. The metrics highlight the changes in behaviour due to the addition of stickiness between the lips in the synthetic mouth model and show quantitatively improved behaviour in relation to real mouth movements. The article concludes that the presented metrics provide a useful approach for evaluation of mouth animation models that incorporate sticky lip effects. |
| first_indexed | 2024-04-14T00:20:16Z |
| format | Article |
| id | doaj.art-984f00aa18b540f695c6d1b89ce7593c |
| institution | Directory Open Access Journal |
| issn | 2073-431X |
| language | English |
| last_indexed | 2024-04-14T00:20:16Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Computers |
| spelling | doaj.art-984f00aa18b540f695c6d1b89ce7593c2022-12-22T02:22:59ZengMDPI AGComputers2073-431X2019-03-01812410.3390/computers8010024computers8010024An Evaluation Approach for a Physically-Based Sticky Lip Model †Matthew Leach0Steve Maddock1The Department of Computer Science, University of Sheffield, Regent Court, 211 Portobello, Sheffield S1 4DP, UKThe Department of Computer Science, University of Sheffield, Regent Court, 211 Portobello, Sheffield S1 4DP, UKPhysically-based mouth models operate on the principle that a better mouth animation will be produced by simulating physically accurate behaviour of the mouth. In the development of these models, it is useful to have an evaluation approach which can be used to judge the effectiveness of a model and draw comparisons against other models and real-life mouth behaviour. This article presents a set of metrics which can be used to describe the motion of the lips, as well as a process for measuring these from video of real or simulated mouths, implemented using Python and OpenCV. As an example, the process is used to evaluate a physically-based mouth model focusing on recreating the stickiness effect of saliva between the lips. The metrics highlight the changes in behaviour due to the addition of stickiness between the lips in the synthetic mouth model and show quantitatively improved behaviour in relation to real mouth movements. The article concludes that the presented metrics provide a useful approach for evaluation of mouth animation models that incorporate sticky lip effects.http://www.mdpi.com/2073-431X/8/1/24evaluationfacial animationphysically-basedsticky lips |
| spellingShingle | Matthew Leach Steve Maddock An Evaluation Approach for a Physically-Based Sticky Lip Model † Computers evaluation facial animation physically-based sticky lips |
| title | An Evaluation Approach for a Physically-Based Sticky Lip Model † |
| title_full | An Evaluation Approach for a Physically-Based Sticky Lip Model † |
| title_fullStr | An Evaluation Approach for a Physically-Based Sticky Lip Model † |
| title_full_unstemmed | An Evaluation Approach for a Physically-Based Sticky Lip Model † |
| title_short | An Evaluation Approach for a Physically-Based Sticky Lip Model † |
| title_sort | evaluation approach for a physically based sticky lip model † |
| topic | evaluation facial animation physically-based sticky lips |
| url | http://www.mdpi.com/2073-431X/8/1/24 |
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