Browsing Meeting minutes, announcements and publications from RIT Colleges by Subject "Optical filters"

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    • A Near stellar occultation by P/Grigg-Skjellerup 

      Ninkov, Zoran (International Society for Optical Engineering (SPIE), 1994-03)
      P/Grigg-Skjellerup was observed to pass within 200 km of the line of sight to an anonymous faint star on the 1992 July 8 UT. The star's brightness was attenuated by 35% at closest approach by the comet. This result, combined ...

    • Two-stage spatial-filtering for diffraction pattern-analysis 

      Blodgett, Jerry; Easton, Roger (Optical Society of America, 1981-03)
      The use of optical power spectrum analysis for feature detection and classification is often restricted by the superposition of the aperture spectrum. A spatial frequency filtering technique using a circular aperture and ...