Dissertation/Thesis
Προβολή σε EDS

Additivity Models for Suprathreshold Distortion in Quantized Wavelet-Coded Images

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Additivity Models for Suprathreshold Distortion in Quantized Wavelet-Coded Images
Συγγραφείς: Damon M. Chandler, Sheila S. Hemami
Συνεισφορές: The Pennsylvania State University CiteSeerX Archives
Πηγή: http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf.
Έτος έκδοσης: 2002
Συλλογή: CiteSeerX
Θεματικοί όροι: Additivity, summation, suprathreshold distortion, masked detection, wavelet image compression
Περιγραφή: The additivity of wavelet subband quantization distortions was investigated in an unmasked detection task and in masked detection and discrimination tasks. Contrast thresholds were measured for both simple targets (artifacts induced by uniform quantization of individual discrete wavelet transform subbands) and compound targets (artifacts induced by uniform quantization of pairs of discrete wavelet transform subbands) in the presence of no mask and eight different natural image maskers. The results were used to assess summation between wavelet subband quantization distortions on orientation and spatial-frequency dimensions. In the unmasked detection experiment, subthreshold quantization distortions pooled in a non-linear fashion and the amount of summation agreed with those of previous summation-atthreshold experiments (=2.43; relative sensitivity=1.33). In the masked detection and discrimination experiments, suprathreshold quantization distortions pooled in a linear fashion. Summation increased as the distortions became increasingly suprathreshold but quickly settled to near-linear values. Summation on the spatial-frequency dimension was greater than summation on the orientation dimension for all suprathreshold contrasts. A high degree of uncertainty imposed by the natural image maskers precludes quantifying an absolute measure of summation.
Τύπος εγγράφου: Thesis
Περιγραφή αρχείου: application/pdf
Γλώσσα: English
Relation: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.9331; http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf
Διαθεσιμότητα: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.9331
http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf
Rights: Metadata may be used without restrictions as long as the oai identifier remains attached to it.
Αριθμός Καταχώρησης: edsbas.2D08386C
Βάση Δεδομένων: BASE
FullText Text:
  Availability: 0
CustomLinks:
  – Url: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.9331#
    Name: EDS - BASE (ns324271)
    Category: fullText
    Text: View record from BASE
Header DbId: edsbas
DbLabel: BASE
An: edsbas.2D08386C
RelevancyScore: 753
AccessLevel: 3
PubType: Dissertation/Thesis
PubTypeId: unknown
PreciseRelevancyScore: 752.684326171875
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Additivity Models for Suprathreshold Distortion in Quantized Wavelet-Coded Images
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Damon+M%2E+Chandler%22">Damon M. Chandler</searchLink><br /><searchLink fieldCode="AR" term="%22Sheila+S%2E+Hemami%22">Sheila S. Hemami</searchLink>
– Name: Author
  Label: Contributors
  Group: Au
  Data: The Pennsylvania State University CiteSeerX Archives
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <i>http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf</i>.
– Name: DatePubCY
  Label: Publication Year
  Group: Date
  Data: 2002
– Name: Subset
  Label: Collection
  Group: HoldingsInfo
  Data: CiteSeerX
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Additivity%22">Additivity</searchLink><br /><searchLink fieldCode="DE" term="%22summation%22">summation</searchLink><br /><searchLink fieldCode="DE" term="%22suprathreshold+distortion%22">suprathreshold distortion</searchLink><br /><searchLink fieldCode="DE" term="%22masked+detection%22">masked detection</searchLink><br /><searchLink fieldCode="DE" term="%22wavelet+image+compression%22">wavelet image compression</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: The additivity of wavelet subband quantization distortions was investigated in an unmasked detection task and in masked detection and discrimination tasks. Contrast thresholds were measured for both simple targets (artifacts induced by uniform quantization of individual discrete wavelet transform subbands) and compound targets (artifacts induced by uniform quantization of pairs of discrete wavelet transform subbands) in the presence of no mask and eight different natural image maskers. The results were used to assess summation between wavelet subband quantization distortions on orientation and spatial-frequency dimensions. In the unmasked detection experiment, subthreshold quantization distortions pooled in a non-linear fashion and the amount of summation agreed with those of previous summation-atthreshold experiments (=2.43; relative sensitivity=1.33). In the masked detection and discrimination experiments, suprathreshold quantization distortions pooled in a linear fashion. Summation increased as the distortions became increasingly suprathreshold but quickly settled to near-linear values. Summation on the spatial-frequency dimension was greater than summation on the orientation dimension for all suprathreshold contrasts. A high degree of uncertainty imposed by the natural image maskers precludes quantifying an absolute measure of summation.
– Name: TypeDocument
  Label: Document Type
  Group: TypDoc
  Data: Thesis
– Name: Format
  Label: File Description
  Group: SrcInfo
  Data: application/pdf
– Name: Language
  Label: Language
  Group: Lang
  Data: English
– Name: NoteTitleSource
  Label: Relation
  Group: SrcInfo
  Data: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.9331; http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf
– Name: URL
  Label: Availability
  Group: URL
  Data: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.9331<br />http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf
– Name: Copyright
  Label: Rights
  Group: Cpyrght
  Data: Metadata may be used without restrictions as long as the oai identifier remains attached to it.
– Name: AN
  Label: Accession Number
  Group: ID
  Data: edsbas.2D08386C
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edsbas&AN=edsbas.2D08386C
RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Text: English
    Subjects:
      – SubjectFull: Additivity
        Type: general
      – SubjectFull: summation
        Type: general
      – SubjectFull: suprathreshold distortion
        Type: general
      – SubjectFull: masked detection
        Type: general
      – SubjectFull: wavelet image compression
        Type: general
    Titles:
      – TitleFull: Additivity Models for Suprathreshold Distortion in Quantized Wavelet-Coded Images
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Damon M. Chandler
      – PersonEntity:
          Name:
            NameFull: Sheila S. Hemami
      – PersonEntity:
          Name:
            NameFull: The Pennsylvania State University CiteSeerX Archives
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2002
          Identifiers:
            – Type: issn-locals
              Value: edsbas
            – Type: issn-locals
              Value: edsbas.oa
          Titles:
            – TitleFull: http://foulard.ee.cornell.edu/publications/dc_HVEI2002.pdf
              Type: main
ResultId 1