A biologically plausible model of human shape symmetry perception.
A biologically plausible model of human shape symmetry perception.
复制标题
人体形状对称感知的生物学合理模型。
DOI：
10.1167/10.1.9
复制
发表时间：
2011
影响因子：
1.8
通讯作者：
H. Wilson
中科院分区：
文献类型：
--
作者：
F. Poirier;H. Wilson
Symmetry is usually computationally expensive to encode reliably, and yet it is relatively effortless to perceive. Here, we extend F. J. A. M. Poirier and H. R. Wilson's (2006) model for shape perception to account for H. R. Wilson and F. Wilkinson's (2002) data on shape symmetry. Because the model already accounts for shape perception, only minimal neural circuitry is required to enable it to encode shape symmetry as well. The model is composed of three main parts: (1) recovery of object position using large-scale non-Fourier V4-like concentric units that respond at the center of concentric contour segments across orientations, (2) around that recovered object center, curvature mechanisms combine multiplicatively the responses of oriented filters to encode object-centric local shape information, with a preference for convexities, and (3) object-centric symmetry mechanisms. Model and human performances are comparable for symmetry perception of shapes. Moreover, with some improvement of edge recovery, the model can encode symmetry axes in natural images such as faces.
用于检测镜像对称性的多种机制。
DOI：
10.1163/156856895x00124
发表时间：
1995
期刊：
Spatial vision.
影响因子：
--
作者：
Tyler,CW;Hardage,L;Miller,RT
通讯作者：
Miller,RT
影响因子：
56.9
作者：
TSO, DY;FROSTIG, RD;GRINVALD, A
通讯作者：
GRINVALD, A