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Image Perspective Transformationsâ€â€?Urban Scenes [PDF]

open access: possibleOptical Engineering, 1981
This paper discusses a technique for converting digitized oblique low-altitude aerial photography to gray level imagery as seen from other viewing perspectives. The technique makes use of one- and two-camera perspective transformations. Inputs to these transformations are camera model information and a stick figure representation of the scene.
Robert N. Devich, Frederick M. Weinhaus
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Atmospheric Optical Propagationâ€â€?An Integrated Approach

Optical Engineering, 1982
The task of characterizing optical wave propagation through the earth's atmosphere under low-visibility weather conditions is extremely difficult; it requires, in essence, solution of the general multiple-scattering problem. This paper describes results from an integrated approach to propagation through the turbid atmosphere in which experiments are ...
Jeffrey H. Shapiro   +4 more
openaire   +2 more sources

CCD/Transit Instrument Deep Photometric And Polarimetric Surveyâ€â€?A Progress Report

Optical Engineering, 1984
We have previously reported on the conceptual design and predicted performance of a new type of dedicated astronomical telescope to be used for a deep photometric survey for galactic and extragalactic variability and polarization.' Data derived from this survey will be useful for a wide variety of astronomical investigations including the definition of
J. T. McGraw   +4 more
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Strain Determination On Curved Surfaces Using Far•Field Objective Laser Speckles

Optical Engineering, 1982
Most of the laser speckle methods utilize subjective speckles in that speckles are recorded through a lens whose aperture determines the admitted spatial frequencies. Objective speckles are those intrinsically formed by the scattering wavelets. In this paper we propose the use of far-field objective speckles generated from a ground glass to measure ...
C. C. Kin, Fu-Pen Chiang
openaire   +2 more sources

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