The Aliasing Problems in Two-Dimensional Sampled Imagery

  • Richard Legault
Part of the Optical Physics and Engineering book series (OPEG)


Most electrooptical imaging devices involve sampling at both the camera and display. The electron beam scanning of television and the optical-mechanical scanning of infrared imaging devices are examples of one-dimensional sampling in the imaging sensor. The excitation of cathode ray tube phosphors by a scanned electron beam is an example of sampling in the displayed image. We are all familiar with the pictures produced by imaging devices with one-dimensional sampling but less familiar with pictures produced by electrooptical devices sampling in two dimensions. Recently two-dimensional arrays of photoconductive or photovoltaic detectors have been used to sense a scene, and two-dimensional arrays of photoemitting diodes, etc. have been used to display imagery.


Spatial Frequency Reciprocal Lattice Sampling Lattice Street Pattern Spatial Frequency Domain 
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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • Richard Legault

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