EyeWiki:Featured article/July 1, 2017

From EyeWiki

Featured Article for June 30, 2017

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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