Relationship between perception of image resolution and peripheral visual field in stereoscopic images

Ogawa, Masahiko; Shidoji, Kazunori

doi:10.1117/12.872311

Cited by 1 publication

(2 citation statements)

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“…Visual acuity is not constant throughout the retina and decreases with increasing eccentricity. For a fixed stimulus, the resolution acuity at 8 degrees of eccentricity of the fovea is 2.8 arcmin, dropping at 7.0 arcmin at 13 degrees (Ogawa and Shidoji, 2011). At an eccentricity of 25 degrees, it is 12 arcmin (Siekawa et al, 2019), and at 30 degrees a spacing of up to 15 arcmin cannot be discriminated (Hoffman et al, 2018).…”

Section: Visual Acuitymentioning

confidence: 91%

“…Visual performance is not equal across the entire FOV. Increasing eccentricity from the fovea affects motion perception (Blissing, 2020;Lidestam et al, 2019;Hoffman et al, 2018), visual acuity (Ogawa and Shidoji, 2011;Siekawa et al, 2019;Thibos et al, 1996), light and contrast sensitivity (Thibos et al, 1996;Patney et al, 2016), and color perception (Patney et al, 2016;Hoffman et al, 2018;Duchowski et al, 2009;Hansen et al, 2009). These differences in visual qualities performance across the FOV may be responsible for the fact that different functions are attributed to different portions of the visual field.…”

Section: Field Of Viewmentioning

confidence: 99%

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Identification of Visual Functional Thresholds for Immersion Assessment in Virtual Reality

Hébert-Lavoie

Doyon-Poulin

Ozell

2020

PRESENCE: Virtual and Augmented Reality

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We consider that to objectively measure immersion, one needs to assess how each sensory quality is reproduced in a virtual environment. In this perspective, we introduce the concept of functional threshold which corresponds to the value at which a sensory quality can be degraded without being noticed by the user of a virtual environment. We suggest that the perceived realism of a virtual experience can potentially be evoked for sensory qualities values ranging from the perceptual threshold to the functional threshold. Thus, the identification of functional thresholds values allows us to constrain immersion. To lay the foundation for the identification of functional thresholds, we applied a modified version of the method of limits. We measured the value at which 30 participants were able to identify the degradation of their field of view (FOV), visual acuity, and contrast sensitivity while executing a multi-directional selection test. This enabled us to identify functional perceptual thresholds of 96.6 degrees for FOV, 12.2 arcmin for visual acuity, and 25.6% for contrast sensitivity.

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Section: Visual Acuitymentioning

confidence: 91%