Perceived slant of binocularly-viewed large-scale surfaces: A common model from explicit and implicit measures
Identifieur interne : 003665 ( Main/Merge ); précédent : 003664; suivant : 003666Perceived slant of binocularly-viewed large-scale surfaces: A common model from explicit and implicit measures
Auteurs : Zhi Li ; Frank H. DurginSource :
- Journal of vision [ 1534-7362 ] ; 2010.
Abstract
It is known that the perceived slants of large distal surfaces, such as hills, are exaggerated and that the exaggeration increases with distance. In a series of two experiments, we parametrically investigated the effect of viewing distance and slant on perceived slant using a high-fidelity virtual environment. An explicit numerical estimation method and an implicit aspect ratio approach were separately used to assess the perceived optical slant of simulated large-scale surfaces with different slants and viewing distances while gaze direction was fixed. The results showed that perceived optical slant increased logarithmically with viewing distance and the increase was proportionally greater for shallow slants. At each viewing distance, perceived optical slant could be approximately fit by linear functions of actual slant that were parallel across distances. These linear functions demonstrated a fairly constant gain of about 1.5 and an intercept that increased logarithmically with distance. A comprehensive three-parameter model based on the present data provides a good fit to a number of previous empirical observations measured in real environments.
Url:
PubMed: 21188784
PubMed Central: 3156410
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: 001140
- to stream Pmc, to step Curation: 001140
- to stream Pmc, to step Checkpoint: 001E02
- to stream Ncbi, to step Merge: 001829
- to stream Ncbi, to step Curation: 001829
- to stream Ncbi, to step Checkpoint: 001829
Links to Exploration step
PMC:3156410Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Perceived slant of binocularly-viewed large-scale surfaces: A common model from explicit and implicit measures</title><author><name sortKey="Li, Zhi" sort="Li, Zhi" uniqKey="Li Z" first="Zhi" last="Li">Zhi Li</name></author><author><name sortKey="Durgin, Frank H" sort="Durgin, Frank H" uniqKey="Durgin F" first="Frank H." last="Durgin">Frank H. Durgin</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21188784</idno><idno type="pmc">3156410</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3156410</idno><idno type="RBID">PMC:3156410</idno><date when="2010">2010</date><idno type="wicri:Area/Pmc/Corpus">001140</idno><idno type="wicri:Area/Pmc/Curation">001140</idno><idno type="wicri:Area/Pmc/Checkpoint">001E02</idno><idno type="wicri:Area/Ncbi/Merge">001829</idno><idno type="wicri:Area/Ncbi/Curation">001829</idno><idno type="wicri:Area/Ncbi/Checkpoint">001829</idno><idno type="wicri:Area/Main/Merge">003665</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Perceived slant of binocularly-viewed large-scale surfaces: A common model from explicit and implicit measures</title><author><name sortKey="Li, Zhi" sort="Li, Zhi" uniqKey="Li Z" first="Zhi" last="Li">Zhi Li</name></author><author><name sortKey="Durgin, Frank H" sort="Durgin, Frank H" uniqKey="Durgin F" first="Frank H." last="Durgin">Frank H. Durgin</name></author></analytic><series><title level="j">Journal of vision</title><idno type="eISSN">1534-7362</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">It is known that the perceived slants of large distal surfaces, such as hills, are exaggerated and that the exaggeration increases with distance. In a series of two experiments, we parametrically investigated the effect of viewing distance and slant on perceived slant using a high-fidelity virtual environment. An explicit numerical estimation method and an implicit aspect ratio approach were separately used to assess the perceived optical slant of simulated large-scale surfaces with different slants and viewing distances while gaze direction was fixed. The results showed that perceived optical slant increased logarithmically with viewing distance and the increase was proportionally greater for shallow slants. At each viewing distance, perceived optical slant could be approximately fit by linear functions of actual slant that were parallel across distances. These linear functions demonstrated a fairly constant gain of about 1.5 and an intercept that increased logarithmically with distance. A comprehensive three-parameter model based on the present data provides a good fit to a number of previous empirical observations measured in real environments.</p></div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003665 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 003665 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= Main
|étape= Merge
|type= RBID
|clé= PMC:3156410
|texte= Perceived slant of binocularly-viewed large-scale surfaces: A common model from explicit and implicit measures
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Merge/RBID.i -Sk "pubmed:21188784" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Merge/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |