Probing dynamic human facial action recognition from the other side of the mean
Probing dynamic human facial action recognition from the other side of the mean
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从均值的另一边探讨动态人脸动作识别
DOI:
10.1145/1394281.1394293
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Bülthoff H.H.
中科院分区:
文献类型:
--
作者:
Curio C;Giese M.A;Breidt M;Kleiner M;Bülthoff H.H.
Insights from human perception of moving faces have the potential to provide interesting insights for technical animation systems as well as in the neural encoding of facial expressions in the brain. We present a psychophysical experiment that explores high-level after-effects for dynamic facial expressions. We address specifically in how far such after-effects represent adaptation in neural representation for static vs. dynamic features of faces. High-level after-effects have been reported for the recognition of static faces [Webster and Maclin 1999; Leopold et al. 2001], and also for the perception of point-light walkers [Jordan et al. 2006; Troje et al. 2006]. After-effects were reflected by shifts in category boundaries between different facial expressions and between male and female walks. We report on a new after-effect in humans observing dynamic facial expressions that have been generated by a highly controllable dynamic morphable face model. As key element of our experiment, we createddynamic 'anti-expressions' in analogy tostatic 'anti-faces' [Leopold et al. 2001]. We tested the influence of dynamics and identity on expression-specific recognition performance after adaptation to 'anti-expressions'. In addition, by a quantitative analysis of the optic flow patterns corresponding to the adaptation and test expressions we rule out that the observed changes reflect a simple low-level motion after-effect. Since we found no evidence for a critical role of temporal order of the stimulus frames we conclude that after-effects in dynamic faces might be dominated by adaptation to the form information in individual stimulus frames.
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DOI:
10.1007/3-540-36181-2_54
发表时间:
2002
期刊:
Proceedings Computer Animation 2001. Fourteenth Conference on Computer Animation (Cat. No.01TH8596)
影响因子:
--
作者:
M. Giese;B. Knappmeyer;H. Bülthoff
通讯作者:
H. Bülthoff
DOI:
10.1145/1140491.1140508
发表时间:
2006
期刊:
影响因子:
--
作者:
Curio C;Breidt M;Kleiner M;Vuong QC;Giese MA;Bülthoff HH
通讯作者:
Bülthoff HH
DOI:
10.1109/ca.2001.982372
发表时间:
2001
期刊:
Proceedings Computer Animation 2001. Fourteenth Conference on Computer Animation (Cat. No.01TH8596)
影响因子:
--
作者:
Byoungwon Choe;Hyeongseok Ko
通讯作者:
Hyeongseok Ko
影响因子:
16.2
作者:
Jiang, X;Rosen, E;Riesenhuber, M
通讯作者:
Riesenhuber, M
影响因子:
--
作者:
Brainard, DH
通讯作者:
Brainard, DH