English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Screen cues to flatness affect 3D percepts

Banks, M., Watt, S., & Ernst, M. (2002). Screen cues to flatness affect 3D percepts. Journal of Vision, 2(10), 1.

Item is

Basic

show hide
Genre: Meeting Abstract

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Banks, MS, Author              
Watt, SJ, Author
Ernst, MO1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497797              

Content

show
hide
Free keywords: -
 Abstract: 3d displays on digital media are often perceived as different from the portrayed object or scene, even when the display creates the “correct” 2d retinal images. In principle, there are at least three depth cues created by digital displays that could contribute to such distortions: 1) inappropriate focus cues, 2) pixelization, and 3) inappropriate motion parallax during head movements. We measured the contribution of these inappropriate screen cues to perceived slant by varying independently the slant specified by the computer graphics algorithm (“computed slant”) and the physical slant of the CRT on which the stimuli were presented (“screen slant”). Planes with different computed and screen slants were presented (tilt = 0 deg) and observers indicated the amount of perceived slant. Precise spatial calibration ensured that retinal-image shapes, texture gradients, and disparity gradients were determined by only the computed slant. Across different experiments, we examined the influence of display type (monocular vs. binocular), screen distance, head stabilization (chin rest and free), amount of slant, conflict between computed and screen slant, and the observers' awareness that the stimuli were presented on a CRT. Screen slant had a significant effect on perceived slant in a wide variety of conditions. The effect was larger in monocular than in binocular viewing conditions, at short distances, with head unstabilized, at large screen slants and when observers were aware of the use of a CRT. We used regression analyses to determine the effective weight given inappropriate screen cues across the various conditions. These results show that inappropriate screen cues can have a significant effect on 3d percepts and that the size of the effect depends strongly on viewing condition.

Details

show
hide
Language(s):
 Dates: 2002-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1167/2.10.1
 Degree: -

Event

show
hide
Title: OSA Fall Vision Meeting 2002
Place of Event: San Francisco, CA, USA
Start-/End Date: 2002-10-24 - 2002-10-27

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Vision
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Charlottesville, VA : Scholar One, Inc.
Pages: - Volume / Issue: 2 (10) Sequence Number: - Start / End Page: 1 Identifier: ISSN: 1534-7362
CoNE: https://pure.mpg.de/cone/journals/resource/111061245811050