Without low spatial frequencies, high resolution vision would be detrimental to motion perception.

ABSTRACT: A normally sighted person can see a grating of 30 cycles per degree or higher, but spatial frequencies needed for motion perception are much lower than that. It is unknown for natural images with a wide spectrum how all the visible spatial frequencies contribute to motion speed perception. In this work, we studied the effect of spatial frequency content on motion speed estimation for sequences of natural and stochastic pixel images by simulating different visual conditions, including normal vision, low vision (low-pass filtering), and complementary vision (high-pass filtering at the same cutoff frequencies of the corresponding low-vision conditions) conditions. Speed was computed using a biological motion energy-based computational model. In natural sequences, there was no difference in sp

SUBMITTER: Shi C 

PROVIDER: S-EPMC7463184 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature