Stereoscopic Depth Contrast in a 3D Müller–Lyer Configuration

Evidence for Local Normalization

Shinya Harada, Hiroyuki Mitsudo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Depth contrast is a stereoscopic visual phenomenon in which the slant of an element is affected by that of adjacent elements. Normalization has been proposed to be a possible cause of depth contrast, but it is still unclear how depth contrast involves normalization. To address this issue, we devised stereograms consisting of a vertical test line accompanied by several inducer lines, like a three-dimensional variation of the well-known Müller–Lyer configuration. The inducer lines had horizontal binocular disparities that defined a stereoscopic slant about a horizontal axis with respect to the endpoints of the test line. The observer’s task was to adjust the slant of the test line about a horizontal axis until it appeared subjectively vertical. The results of two psychophysical experiments found that slant settings were affected by the slant of local inducers, but not by the overall slant of the whole stimulus. These results suggest that, at least for line patterns, the stereo system normalizes depth locally.

Original languageEnglish
Pages (from-to)860-873
Number of pages14
JournalPerception
Volume46
Issue number7
DOIs
Publication statusPublished - Jul 1 2017

Fingerprint

Vision Disparity
Binoculars
Experiments

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence

Cite this

Stereoscopic Depth Contrast in a 3D Müller–Lyer Configuration : Evidence for Local Normalization. / Harada, Shinya; Mitsudo, Hiroyuki.

In: Perception, Vol. 46, No. 7, 01.07.2017, p. 860-873.

Research output: Contribution to journalArticle

@article{394fc8c4a229443d80088735565194b6,
title = "Stereoscopic Depth Contrast in a 3D M{\"u}ller–Lyer Configuration: Evidence for Local Normalization",
abstract = "Depth contrast is a stereoscopic visual phenomenon in which the slant of an element is affected by that of adjacent elements. Normalization has been proposed to be a possible cause of depth contrast, but it is still unclear how depth contrast involves normalization. To address this issue, we devised stereograms consisting of a vertical test line accompanied by several inducer lines, like a three-dimensional variation of the well-known M{\"u}ller–Lyer configuration. The inducer lines had horizontal binocular disparities that defined a stereoscopic slant about a horizontal axis with respect to the endpoints of the test line. The observer’s task was to adjust the slant of the test line about a horizontal axis until it appeared subjectively vertical. The results of two psychophysical experiments found that slant settings were affected by the slant of local inducers, but not by the overall slant of the whole stimulus. These results suggest that, at least for line patterns, the stereo system normalizes depth locally.",
author = "Shinya Harada and Hiroyuki Mitsudo",
year = "2017",
month = "7",
day = "1",
doi = "10.1177/0301006616687319",
language = "English",
volume = "46",
pages = "860--873",
journal = "Perception",
issn = "0301-0066",
publisher = "Pion Ltd.",
number = "7",

}

TY - JOUR

T1 - Stereoscopic Depth Contrast in a 3D Müller–Lyer Configuration

T2 - Evidence for Local Normalization

AU - Harada, Shinya

AU - Mitsudo, Hiroyuki

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Depth contrast is a stereoscopic visual phenomenon in which the slant of an element is affected by that of adjacent elements. Normalization has been proposed to be a possible cause of depth contrast, but it is still unclear how depth contrast involves normalization. To address this issue, we devised stereograms consisting of a vertical test line accompanied by several inducer lines, like a three-dimensional variation of the well-known Müller–Lyer configuration. The inducer lines had horizontal binocular disparities that defined a stereoscopic slant about a horizontal axis with respect to the endpoints of the test line. The observer’s task was to adjust the slant of the test line about a horizontal axis until it appeared subjectively vertical. The results of two psychophysical experiments found that slant settings were affected by the slant of local inducers, but not by the overall slant of the whole stimulus. These results suggest that, at least for line patterns, the stereo system normalizes depth locally.

AB - Depth contrast is a stereoscopic visual phenomenon in which the slant of an element is affected by that of adjacent elements. Normalization has been proposed to be a possible cause of depth contrast, but it is still unclear how depth contrast involves normalization. To address this issue, we devised stereograms consisting of a vertical test line accompanied by several inducer lines, like a three-dimensional variation of the well-known Müller–Lyer configuration. The inducer lines had horizontal binocular disparities that defined a stereoscopic slant about a horizontal axis with respect to the endpoints of the test line. The observer’s task was to adjust the slant of the test line about a horizontal axis until it appeared subjectively vertical. The results of two psychophysical experiments found that slant settings were affected by the slant of local inducers, but not by the overall slant of the whole stimulus. These results suggest that, at least for line patterns, the stereo system normalizes depth locally.

UR - http://www.scopus.com/inward/record.url?scp=85020882451&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020882451&partnerID=8YFLogxK

U2 - 10.1177/0301006616687319

DO - 10.1177/0301006616687319

M3 - Article

VL - 46

SP - 860

EP - 873

JO - Perception

JF - Perception

SN - 0301-0066

IS - 7

ER -