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- W1974211853 abstract "A hybrid real -time correlation system of aerial stereo photographsR. T. Hong*, J. Tsujiuchi, N. Ohyama and T. HondaImaging Science and Engineering Laboratory, Tokyo Institute of Technology4259 Nagatsuta, Midori -ku, Yokohama, 227, JapanAbstractA digital- optical hybrid system composed of a computer and a coherent optical filteringsystem is successfully applied to perform a real -time correlation of aerial stereo photo-graphs. A LCLV ( Liquid Crystal Light Valve ) as an incoherent -to- coherent convertor and athermoplastic photoconductor material for holographic recording of MSF ( Matched Spatial Fil-ter ) are used, and a sharp correlation peak with a good SNR is obtained.IntroductionIn contour mapping of aerial stereo photogrammetry, a pair of stereo aerial photographsis taken at two view points Otand O separated by the base line B as shown in Fig.l. The re-lative variation of the coordinates of the same object in the stereo pair photographs ( theparallax ) is used to determine the height of the object. Fig.l refers to the simple andideal case of vertical photographs, in which the camera axes are parallel with each otherand perpendicular to the reference plane. The height He and Hdof two objects C and D with re-spect to the reference plane are obtained by" @default.
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- W1974211853 date "1988-01-15" @default.
- W1974211853 modified "2023-09-26" @default.
- W1974211853 title "A Hybrid Real-Time Correlation System Of Aerial Stereo Photographs" @default.
- W1974211853 doi "https://doi.org/10.1117/12.939115" @default.
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