作者
Pawan Sinha, Sidney P Diamond, Frank Thorn, Sharon Gilad-Gutnick, Shlomit Ben-Ami, Sruti Raja
发表日期
2019/9/6
期刊
Journal of Vision
卷号
19
期号
10
页码范围
206c-206c
出版商
The Association for Research in Vision and Ophthalmology
简介
The genesis of this work lies in the subjective experience of some of us with strong myopia. Unsurprisingly, without our glasses the world looks blurry. Less intuitively, though, the dynamics also seem to undergo a change; the world appears to move more ‘smoothly’. Thus, a purely spatial optical transformation seemingly has temporal consequences. To formally test this anecdotal observation, we ask how convolution with a spatial Gaussian of individual images in a video-stack impacts the stack’s temporal structure. Our approach involves computing spatial and temporal Fourier spectra of several short natural videos in their original form, as well as after subjecting them to multiple levels of spatial Gaussian blur. The spatial spectrum corresponds to the mean radial-average of the 2DFFT of all images in the stack. The temporal spectrum corresponds to the mean of the 1DFFT of several single pixel cores extending …
学术搜索中的文章
P Sinha, SP Diamond, F Thorn, S Gilad-Gutnick… - Journal of Vision, 2019