The accessibility of spatial channels for stereo and motion
The accessibility of spatial channels for stereo and motion
复制标题
立体声和运动空间通道的可访问性
DOI:
10.1016/j.visres.2005.10.029
复制
发表时间:
2006
期刊:
影响因子:
1.8
通讯作者:
C. Liu
中科院分区:
文献类型:
--
作者:
R. Hess;Yizhong Wang;C. Liu
Using fractal noise images, we measured the dependence of Dminon the spatial passband (spatial frequency and orientation) over which information was correlated either between the eyes for stereo or between sequential frames for motion. Without affecting the amplitude spectrum of the noise stimulus we used idealized filters to scramble the phase of components outside a pre-defined passband. Using a simple Gaussian model in which performance depends on the signal/noise within a restricted spatial region, we obtained estimates of the bandwidth of the narrowest underlying spatial frequency and orientation spectral region subserving these two comparable tasks. Spatial bandwidths varied with peak spatial frequency but were very broad approximating the spectrum of the stimulus itself. Orientation properties of the underlying mechanisms were isotropic. These results suggest that the independent activity of individual narrowband spatial channels is not perceptually accessible for these tasks.
影响因子:
1.8
作者:
HECKMANN, T;SCHOR, CM
通讯作者:
SCHOR, CM
DOI:
10.1364/josaa.8.000229
发表时间:
1991
期刊:
Journal of the Optical Society of America. A, Optics and image science
影响因子:
--
作者:
Wilson,HR;Blake,R;Halpern,DL
通讯作者:
Halpern,DL
DOI:
10.1364/josaa.4.002379
发表时间:
1987-12-01
影响因子:
1.9
作者:
FIELD, DJ
通讯作者:
FIELD, DJ