Haptic identification of curved surfaces.
Identifieur interne : 001E63 ( PubMed/Checkpoint ); précédent : 001E62; suivant : 001E64Haptic identification of curved surfaces.
Auteurs : A M Kappers [Pays-Bas] ; J J Koenderink ; I. LichteneggerSource :
- Perception & psychophysics [ 0031-5117 ] ; 1994.
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Abstract
In two experiments, the active haptic identification of three-dimensional mathematically well-defined objects is investigated. The objects, quadric surfaces, are defined in terms of the shape index, a quantity describing the shape, and curvedness, a quantity describing overall curvature. Both shape index and curvedness are found to have a significant influence on haptic shape identification. Concave surfaces lead to a larger spread in responses than convex ones. Hyperbolic surfaces show a slight tendency to be identified with more difficulty than elliptic ones. Surfaces with a high curvedness are identified more easily than those with a low curvedness. Results from experiments with constant and with random curvedness are indistinguishable. It is concluded that shape index and curvedness are psychophysically not confounded.
PubMed: 8084732
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Lichtenegger</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1994">1994</date><idno type="RBID">pubmed:8084732</idno><idno type="pmid">8084732</idno><idno type="wicri:Area/PubMed/Corpus">002123</idno><idno type="wicri:Area/PubMed/Curation">002123</idno><idno type="wicri:Area/PubMed/Checkpoint">001E63</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Haptic identification of curved surfaces.</title><author><name sortKey="Kappers, A M" sort="Kappers, A M" uniqKey="Kappers A" first="A M" last="Kappers">A M Kappers</name><affiliation wicri:level="1"><nlm:affiliation>Utrecht Biophysics Research Institute, The Netherlands.</nlm:affiliation><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Utrecht Biophysics Research Institute</wicri:regionArea></affiliation></author><author><name sortKey="Koenderink, J J" sort="Koenderink, J J" uniqKey="Koenderink J" first="J J" last="Koenderink">J J Koenderink</name></author><author><name sortKey="Lichtenegger, I" sort="Lichtenegger, I" uniqKey="Lichtenegger I" first="I" last="Lichtenegger">I. Lichtenegger</name></author></analytic><series><title level="j">Perception & psychophysics</title><idno type="ISSN">0031-5117</idno><imprint><date when="1994" type="published">1994</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Depth Perception</term><term>Female</term><term>Form Perception</term><term>Humans</term><term>Male</term><term>Orientation</term><term>Psychophysics</term><term>Stereognosis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Depth Perception</term><term>Female</term><term>Form Perception</term><term>Humans</term><term>Male</term><term>Orientation</term><term>Psychophysics</term><term>Stereognosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In two experiments, the active haptic identification of three-dimensional mathematically well-defined objects is investigated. The objects, quadric surfaces, are defined in terms of the shape index, a quantity describing the shape, and curvedness, a quantity describing overall curvature. Both shape index and curvedness are found to have a significant influence on haptic shape identification. Concave surfaces lead to a larger spread in responses than convex ones. Hyperbolic surfaces show a slight tendency to be identified with more difficulty than elliptic ones. Surfaces with a high curvedness are identified more easily than those with a low curvedness. Results from experiments with constant and with random curvedness are indistinguishable. It is concluded that shape index and curvedness are psychophysically not confounded.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">8084732</PMID><DateCreated><Year>1994</Year><Month>10</Month><Day>11</Day></DateCreated><DateCompleted><Year>1994</Year><Month>10</Month><Day>11</Day></DateCompleted><DateRevised><Year>2004</Year><Month>11</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-5117</ISSN><JournalIssue CitedMedium="Print"><Volume>56</Volume><Issue>1</Issue><PubDate><Year>1994</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Perception & psychophysics</Title><ISOAbbreviation>Percept Psychophys</ISOAbbreviation></Journal><ArticleTitle>Haptic identification of curved surfaces.</ArticleTitle><Pagination><MedlinePgn>53-61</MedlinePgn></Pagination><Abstract><AbstractText>In two experiments, the active haptic identification of three-dimensional mathematically well-defined objects is investigated. The objects, quadric surfaces, are defined in terms of the shape index, a quantity describing the shape, and curvedness, a quantity describing overall curvature. Both shape index and curvedness are found to have a significant influence on haptic shape identification. Concave surfaces lead to a larger spread in responses than convex ones. Hyperbolic surfaces show a slight tendency to be identified with more difficulty than elliptic ones. Surfaces with a high curvedness are identified more easily than those with a low curvedness. Results from experiments with constant and with random curvedness are indistinguishable. 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Lichtenegger</name></noCountry><country name="Pays-Bas"><noRegion><name sortKey="Kappers, A M" sort="Kappers, A M" uniqKey="Kappers A" first="A M" last="Kappers">A M Kappers</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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