<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Blu T</dc:creator>
  <dc:creator>Thévenaz P</dc:creator>
  <dc:creator>Unser M</dc:creator>
  <dc:date>2004</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">We present a simple, original method to improve piecewise-linear interpolation with uniform knots: we shift the sampling knots by a fixed amount, while enforcing the interpolation property. We determine the theoretical optimal shift that maximizes the quality of our shifted linear interpolation. Surprisingly enough, this optimal value is nonzero and close to 1/5. We confirm our theoretical findings by performing several experiments: a cumulative rotation experiment and a zoom experiment. Both show a significant increase of the quality of the shifted method with respect to the standard one. We also observe that, in these results, we get a quality that is similar to that of the computationally more costly "high-quality" cubic convolution.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>https://sonar.ch/global/documents/187593</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/semantics/altIdentifier/doi/10.1109/tip.2004.826093</dc:relation>
  <dc:relation>info:eu-repo/semantics/altIdentifier/pmid/15376602</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:source>IEEE transactions on image processing : a publication of the IEEE Signal Processing Society. - 2004</dc:source>
  <dc:subject xmlns:ns1="xml" ns1:lang="en">Algorithms</dc:subject>
  <dc:subject xmlns:ns2="xml" ns2:lang="en">Feedback</dc:subject>
  <dc:subject xmlns:ns3="xml" ns3:lang="en">Image Enhancement</dc:subject>
  <dc:subject xmlns:ns4="xml" ns4:lang="en">Image Interpretation, Computer-Assisted</dc:subject>
  <dc:subject xmlns:ns5="xml" ns5:lang="en">Information Storage and Retrieval</dc:subject>
  <dc:subject xmlns:ns6="xml" ns6:lang="en">Linear Models</dc:subject>
  <dc:subject xmlns:ns7="xml" ns7:lang="en">Numerical Analysis, Computer-Assisted</dc:subject>
  <dc:subject xmlns:ns8="xml" ns8:lang="en">Pattern Recognition, Automated</dc:subject>
  <dc:subject xmlns:ns9="xml" ns9:lang="en">Reproducibility of Results</dc:subject>
  <dc:subject xmlns:ns10="xml" ns10:lang="en">Sensitivity and Specificity</dc:subject>
  <dc:subject xmlns:ns11="xml" ns11:lang="en">Signal Processing, Computer-Assisted</dc:subject>
  <dc:subject xmlns:ns12="xml" ns12:lang="en">Subtraction Technique</dc:subject>
  <dc:subject xmlns:ns13="xml" ns13:lang="en">Video Recording</dc:subject>
  <dc:title xmlns:ns14="xml" ns14:lang="en">Linear interpolation revitalized.</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>