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When virtual and real worlds coexist: Visualization and visual system affect spatial performance in augmented

Tatjana Pladere1,2, Artis Luguzis1,3,4, Roberts Zabels5,6

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Area of Science:

  • Human-Computer Interaction
  • Visual Perception
  • Augmented Reality Displays

Background:

  • Augmented reality (AR) systems face challenges with vergence-accommodation conflict, impacting spatial performance due to individual variability.
  • Existing visualization methods struggle to predict user benefits effectively.
  • Understanding the interplay of binocular and focus cues is crucial for AR development.

Purpose of the Study:

  • To investigate how consistent and inconsistent binocular and focus cues affect perceptual matching in stereoscopic AR.
  • To evaluate the impact of multifocal versus single focal plane displays on spatial judgments.
  • To identify benefits for individuals with visual impairments in AR environments.

Main Methods:

  • Utilized a head-mounted display operating in multifocal and single focal plane modes.
  • Participants performed distance matching tasks between real objects and projected AR images.
  • Assessed perceptual judgments under conditions of consistent and inconsistent visual cues.

Main Results:

  • Consistent depth cues led to faster perceptual judgments of spatial relations in AR.
  • Individuals with mild binocular and accommodative disorders showed improved performance accuracy.
  • Benefits for those with visual disorders were more pronounced than for individuals with normal vision.

Conclusions:

  • Aligning visual information with display focal planes enhances AR user performance, especially for those with visual impairments.
  • Detailed assessment of visual functions is necessary for AR spatial performance research.
  • Prioritizing visualization systems that reduce visual stress is key for successful AR implementation.