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Daniel H. Baker, Milena Kaestner, André D. Gouws; Measurement of crosstalk in stereoscopic display systems used for vision research. Journal of Vision 2016;16(15):14. doi: 10.1167/16.15.14.
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© ARVO (1962-2015); The Authors (2016-present)
Studying binocular vision requires precise control over the stimuli presented to the left and right eyes. A popular technique is to segregate signals either temporally (frame interleaving), spectrally (using colored filters), or through light polarization. None of these segregation methods achieves perfect isolation, and so a degree of crosstalk is usually apparent, in which signals intended for one eye are faintly visible to the other eye. Previous studies have reported crosstalk values mostly for consumer-grade systems. Here we measure crosstalk for eight systems, many of which are intended for use in vision research. We provide benchmark crosstalk values, report a negative crosstalk effect in some LCD-based systems, and give guidelines for dealing with crosstalk in different experimental paradigms.
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