Now showing items 1-7 of 7

    • Horizontal-parallax-only electronic holography 

      Poon, Ting-Chung; Akin, T.; Indebetouw, Gary; Kim, Taegeun (Optical Society of America, 2005-04-01)
      The principle of optical scanning holography (OSH) is proposed to acquire horizontal-parallax-only (HPO) holographic information electronically. We first briefly summarize the results of OSH and then discuss how HPO-electronic ...
    • Incoherent Bandpass Spatial-Filtering with Longitudinal Periodicity 

      Poon, Ting-Chung; Indebetouw, Gary (Optical Society of America, 1990-09-01)
      We explore the possibility of realizing bandpass filtering with longitudinal periodicity in incoherent systems. The necessary condition for spatial filtering to be longitudinally periodic is derived. Results indicate that ...
    • Incoherent Spatial-Filtering with A Scanning Heterodyne System 

      Indebetouw, Gary; Poon, Ting-Chung (Optical Society of America, 1984-01-01)
      Imaging systems with two pupils in the receiving optics have been used to synthesize bipolar point spread functions in incoherent image processing. We describe a two-pupil system using a scanning illumination technique and ...
    • Interferometric Model For Phase Analysis in Fiber Couplers 

      Fang, Xiaojun; Claus, Richard O.; Indebetouw, Gary (Optical Society of America, 1996-07-01)
      An interferometric model is proposed to estimate the phase differences in lossless, strongly coupled biconical fiber couplers. This approximate method is simpler than the traditional s-parameter network theory-based analysis ...
    • Three-Dimensional Microscopy And Sectional Image Reconstruction Using Optical Scanning Holography 

      Lam, Edmund Y.; Zhang, Xin; Vo, Huy; Poon, Ting-Chung; Indebetouw, Gary (Optical Society of America, 2009-08-01)
      Fast acquisition and high axial resolution are two primary requirements for three-dimensional microscopy. However, they are sometimes conflicting: imaging modalities such as confocal imaging can deliver superior resolution ...
    • Three-Dimensional Point Spread Functions Of an Optical Heterodyne Scanning Image Processor 

      Poon, Ting-Chung; Indebetouw, Gary (Optical Society of America, 2003-10-01)
      We study the three-dimensional (3-D) imaging properties of an optical heterodyne scanning image processor. The image processor is a two-pupil optical system capable of 3-D imaging coherently or incoherently, depending on ...
    • Two-Dimensional Textural Edge Detection Using Ω-Gaussian Filter 

      Park, Jinwoo; Poon, Ting-Chung; Indebetouw, Gary (Optical Society of America, 1986-11-01)
      A textural edge detection frequency domain filter is proposed to locate the boundary between two textural domains modulated by different spatial frequencies. This filter is derived from a zero-order prolate spheroidal ...