1978 volume 7(4) pages 423 – 429
doi:10.1068/p070423

Cite as:
Frisby J P, Mayhew J E W, 1978, "Contrast sensitivity function for stereopsis" Perception 7(4) 423 – 429
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Contrast sensitivity function for stereopsis

John P Frisby, John E W Mayhew

Received 5 September 1977, in revised form 20 March 1978

Abstract. Contrast thresholds for stereopsis from narrow-band-filtered random-dot stereograms were compared with contrast thresholds for simple detection of similar narrow-band noise. Centre frequencies of filters were in the range 2.5 - 15 cycles deg-1. It was found that the contrast sensitivity function for stereopsis is similar in shape to that for detection, suggesting that as far as contrast requirements are concerned the mechanisms of global stereopsis do not show a bias in sensitivity to any particular spatial frequency but instead require a constant level of suprathreshold contrast regardless of spatial frequency.

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