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2951RE: [PanoToolsNG] d e parameters

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  • Sacha Griffin
    Oct 2, 2006
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      100% of the time.
      Images that wrap 360 are good for optimizing d and e
      Plus, that have static features for an even spread of cp's.

      Sacha Griffin
      Southern Digital Solutions LLC

      -----Original Message-----
      From: JD Smith [mailto:jdsmith@...]
      Sent: Monday, October 02, 2006 1:45 PM
      To: PanoToolsNG@yahoogroups.com
      Subject: [PanoToolsNG] d e parameters

      How commonly do people find they need to allow non-zero d and e parameters
      (which change the center of the radial aberration coefficients a, b, and
      c) for rectilinear lenses? How large of a shift is typical? Does anyone
      have recommendations for good test images to assess whether d and e should
      be nonzero (standard "building at a distance"?).



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