EyeWiki:Featured article/November 1, 2018

From EyeWiki

Featured Article for October 31, 2018

Frequency Doubling Technology

Frequency doubling technology (FDT) perimetry is based on a flicker illusion created by counterphase flickering of a low spatial frequency sinusoidal grating at a high temporal frequency. This phenomenon essentially creates an image that appears double its actual spatial frequency.

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