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Spatial and photometric factors modulating the effect of depth on lightness

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TypeOfResource
Text
TitleInfo (ID = T-1)
Title
Spatial and photometric factors modulating the effect of depth on lightness
SubTitle
PartName
PartNumber
NonSort
Identifier (displayLabel = ); (invalid = )
ETD_1792
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10002600001.ETD.000051313
Language (objectPart = )
LanguageTerm (authority = ISO639-2); (type = code)
eng
Genre (authority = marcgt)
theses
Subject (ID = SBJ-1); (authority = RUETD)
Topic
Psychology
Subject (ID = SBJ-2); (authority = ETD-LCSH)
Topic
Visual perception
Abstract
According to the coplanar ratio principle (CRP), when the luminance range in the image is larger than 30:1 the lightness of a target surface depends on the luminance ratio between that target and its adjacent, coplanar neighbor. This conclusion was based on experiments (Gilchrist, 1977) using a dihedral corner display in which a change in the perceived spatial position of a target produced large changes in its perceived lightness, with no significant change in the observer’s retinal image. Using variations of this dihedral display, a series of experiments was conducted to test a group of conflicting claims made by CRP, the anchoring theory (Gilchrist et al., 1999) and other writers (e.g. Kardos, 1934, Howe, 2006) concerning the role of coplanarity, adjacency, surroundedness, articulation, and luminance range.
Generally consistent with the predictions of the anchoring theory, the results show the following: (1) Articulation can substantially increase the depth effect. (2) Target lightness depends, not simply on its adjacent coplanar luminance, but on the highest luminance in its plane, irrespective of its position relative to the target. (3) When two or more levels of illumination are present on a plane, target lightness depends on the highest luminance in its framework of illumination, not on the highest luminance in its plane. (4) The size of the depth effect depends on the luminance ratio between the highest luminance values in the two planes, not on the overall luminance range across the planes. Thus strong depth effects can be obtained with a luminance range no greater than 30:1. (5) Surface continuity within a plane is necessary for the operation of coplanar ratios, although surroundedness can partially substitute for continuity, but only within the brightly illuminated plane.
PhysicalDescription
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electronic resource
Extent
xi, 167 p. : ill.
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application/pdf
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text/xml
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Supplementary File: Table 1
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Supplementary File: Figure 25
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Supplementary File: Figure 10
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references (p. 155-166)
Note (type = statement of responsibility)
by Ana Radonjić
Name (ID = NAME-1); (type = personal)
NamePart (type = family)
Radonjić
NamePart (type = given)
Ana
NamePart (type = date)
1977
Role
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author
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Ana Radonjić
Name (ID = NAME-2); (type = personal)
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Gilchrist
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Alan
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chair
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Advisory Committee
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Alan L Gilchrist
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Shiffrar
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Maggie
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internal member
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Advisory Committee
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Maggie Shiffrar
Name (ID = NAME-4); (type = personal)
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Van de Walle
NamePart (type = given)
Gretchen
Role
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internal member
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Advisory Committee
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Gretchen Van de Walle
Name (ID = NAME-5); (type = personal)
NamePart (type = family)
Brainard
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David
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outside member
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Advisory Committee
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David H Brainard
Name (ID = NAME-1); (type = corporate)
NamePart
Rutgers University
Role
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degree grantor
Name (ID = NAME-2); (type = corporate)
NamePart
Graduate School - Newark
Role
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school
OriginInfo
DateCreated (point = ); (qualifier = exact)
2009
DateOther (qualifier = exact); (type = degree)
2009-05
Place
PlaceTerm (type = code)
xx
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Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
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TitleInfo
Title
Graduate School - Newark Electronic Theses and Dissertations
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rucore10002600001
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NjNbRU
Identifier (type = doi)
doi:10.7282/T3K074GZ
Genre (authority = ExL-Esploro)
ETD doctoral
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The author owns the copyright to this work
Copyright
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Availability
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Open
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Note
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Radonjić
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Ana
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Ana Radonjić
Affiliation
Rutgers University. Graduate School - Newark
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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