On the other side of the mean: The perception of dissimilarity in human faces
On the other side of the mean: The perception of dissimilarity in human faces
复制标题
DOI：
10.1068/p2851
复制
发表时间：
2000-01-01
期刊：
影响因子：
1.7
通讯作者：
Wild, HA
中科院分区：
文献类型：
--
作者：
Blanz, V;O'Toole, AJ;Wild, HA
我们使用激光扫描表示面部来创建一个“面部空间”。在这个空间中，漫画可以通过将一张脸沿着连接特定脸和平均脸的线从平均脸移开来制作。在这里，我们将脸沿着这条线向另一个方向移动，继续通过平均值并“离开另一边”。这导致在计算意义上与原始Face“相反”的Face。我们将几张脸变形为它们的反脸，并在五个离散步骤中对变形轨迹进行采样。然后，我们收集了人类参与者对所有可能的变形面孔的相似性评级，以确定“物理面孔空间”中的距离与“心理面孔空间”中的距离之间的关系。数据表明，有一个知觉的脸身份的不连续性，因为面对跨越到“另一边的平均值”。我们认为这些结果的背景下，人脸处理的人脸空间模型。
We created a 'face space' using a laser-scan representation of faces. In this space, a caricature can be made by moving a face away from the average face, along the line connecting the particular face to the average face. Here, we move the face along this line in the other direction, proceeding through the mean and 'out the other side'. This results in a face that is 'opposite', in a computational sense, to the original Face. We morphed several faces into their anti-faces and sampled the morph trajectory in five discrete steps. We then collected similarity ratings from human participants for all possible pairs of morphed faces to determine how the distances in the 'physical face space' related to the distances in the 'psychological face space'. The data indicate that there is a perceptual discontinuity of face identity as the face crosses over to the 'other side of the mean'. We consider these results in the context of face-space models of human face processing.