Abstract

Optical-mechanical scanning techniques are generally employed in instruments specifically designed to characterize variations in scene brightness spectrally or radiometrically. The effect of aliasing, which can be caused by line-scan sampling, on the spatial detail of the reconstructed image has therefore been of little concern. Emphasis of some recent applications of optical-mechanical scanning techniques is, however, on the spatial characterization of the scene. As is shown here, such images can be severely degraded by aliasing. Photosensor aperture shaping and line-scan spacing are investigated as a means for reducing this degradation.

© 1973 Optical Society of America

Optical-mechanical line-scan imaging process: its information capacity and efficiency

Friedrich O. Huck and Stephen K. Park
Appl. Opt. 14(10) 2508-2520 (1975)

Aliasing and blurring in 2-D sampled imagery

F. O. Huck, N. Halyo, and S. K. Park
Appl. Opt. 19(13) 2174-2181 (1980)

Multidimensional Fourier Transforms and Image Processing with Finite Scanning Apertures

A. H. Robinson
Appl. Opt. 12(10) 2344-2352 (1973)

Information efficiency of line-scan imaging mechanisms

F. O. Huck, N. Halyo, and S. K. Park
Appl. Opt. 20(11) 1990-2007 (1981)

Application of a Synthetic Aperture Optical System to Infrared Imaging

Eustace L. Dereniak
Appl. Opt. 12(3) 487-492 (1973)