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.
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.

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人类对移动面部的感知有可能为技术动画系统以及大脑中面部表情的神经编码提供有趣的见解。我们提出了一项心理物理学实验,探索动态面部表情的高水平后遗症。我们特别讨论了这种后效在多大程度上代表了面部静态与动态特征的神经表征的适应。据报道,静态面部识别会产生高水平的后遗症[Webster and Maclin 1999;利奥波德等人。 2001],以及点光步行者的感知[Jordan et al. 2001]。 2006年;特洛伊等人。 2006]。后遗症表现为不同面部表情之间以及男性和女性行走之间类别界限的变化。我们报告了人类观察由高度可控的动态可变形面部模型生成的动态面部表情的新后效。作为我们实验的关键要素,我们创建了动态的“反表情”,类似于静态的“反面孔”[Leopold 等人。 2001]。我们测试了适应“反表达”后动态和身份对表达特异性识别性能的影响。此外,通过对与适应和测试表达式相对应的光流模式的定量分析,我们排除了观察到的变化反映了简单的低级运动后效应。由于我们没有发现刺激帧的时间顺序发挥关键作用的证据,因此我们得出结论,动态面部的后效可能主要是对单个刺激帧中的形式信息的适应所主导。
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.
通过学习示例模式的线性组合自动合成人体运动序列
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
面部动画的语义 3D 运动重定向
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
DOI: 10.1016/j.neuron.2006.03.012
发表时间: 2006-04-06
期刊: NEURON
影响因子: 16.2
作者:
Jiang, X;Rosen, E;Riesenhuber, M
通讯作者: Riesenhuber, M
DOI: 10.1163/156856897x00357
发表时间: 1997-01-01
期刊: SPATIAL VISION
影响因子: --
作者:
Brainard, DH
通讯作者: Brainard, DH