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立體對影像之正射糾正與DTM資料自動化產生之整合處理

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(2)  An Integrated Approach to Orthoimage Rectification and Automatic DTM Generation 

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(11) op qrst12%2>RS7uv wWM SxyL ! ". {|. z[\:;z. ABSTRACT A method of "Refine DTM Data Using Iterative OrthoImage Rectification" is used to improve the accuracy of the raw DTM data or reconstructed 3D data from image correlation method. According to this integrated procedure, the following four items can be performed successfully: 1.Correcting the DTM data, if errors are found, which are generated automatically in the process of image matching. 2.Increasing accuracy of the DTM defined by terrain cover. 3.Generating the DTM data by the use of mean elevation automatically. 4.Offering high accuracy and calibration in. the process of orthoimage rectifi-cation. In this study, a pair of aerial images has been examined in order to describe the principle of design and every step of processing. The results have also been analyzed. Key Words : Orthoimage Rectification , Digital Terrain Model, Image Matching. 4/56789 [\:;NP}7&[2 ~C€<

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(122) ¢ O‡MQ  fgh*  Vx¯M P”N σ ±i‡ObŒPM h*V²³ R ]9´M µ ¶vxM Oσ M M“iM·MiMŒM OM¸ƒ¹‡M vb‡ebMºM Xσ M M“wM·MwMŒM XM¸ƒ¹‡•M cb‡|cMºM eσ M “OXM·MOXMŒM eM¸ƒ¹‡•M cw‡viMºM ¢ X‡M h*¤ x¯¢N» ¼½NPM ¾_M fgM P”M Q z Ž M |‡XiM ¿‡¿¿M  z Ž M |‡XvM v‡|vM. ±9M “XiM “XwM. ±´M i|M ecM. ¢ e‡M~4  l ! Àdx¯N» ¼ÀÁPM ¾_M fgM P”M ±9M ±´M. Ž M “c‡¿eM c‡bcM wOM “O|OM Q M “c‡bwM w‡c|M biM “wwM  M “O|‡|eM w‡b|M vbM “wXM ¢ i‡M~4  l ! §¨Vx¯N» ¼ ]PM ¾_M ¦ fgM  fgM ¦ g¢ƒM  g¢ƒM. Ž M |‡|XM |‡b|M |‡¿OM |‡XcM Q M |‡||M |‡icM |‡OeM |‡XwM  MM MMM“|‡|OM |‡ecM |‡OcM |‡X¿M. YZ1[ 1.Barnard, S. T.and Fischler, M. A., 1982, Computation Stereo, Computing Surveying, Vol. 14, No.4, Decembe, pp.553-572. 2.Norvelle, F. R., 1992, Using Iterative Orthophoto Refinements to Correct Digital Elevation Models(DEM's), ASPRS Vol.2, pp.27-35. 3.Schenk T., Jin-Cheng Li and Charles K. Toth, 1990, Hierachical Approach to Reconstruct Surfaces by Using Iteratively Rectified Imagery, SPIE Vol.1395, pp.464-470. 4.Schenk T., A. F., 1989, Determination of DEM Using Iteratively Rectified Images, Photogrammetry Technical Report No.3, State University, Columbus, Ohio. 5.Dubayah, R. O. and Dozier, J., 1986, Orthographic Terrain Views Using Data Drived from Digital Terrain Models,. Photogrammetric Engineering and Remote Sensing, Vol.52, No.4, pp.509-518. 6.Hochstoger, F. and Ecker, R., 1990, Application and Visualization Tech-niques for Digital Terrain Models, Proc. of The Symposium on Cartographic and Data Base Applications of Photogrammetry and Remote Sensing, Tsukuba, pp.58-66.M 7.Mayr, W., 1988, A Contribution to Digital Orthophoto Generation, XVI ISPRS Congress, Commission IV, Kyoto, Japan, pp.IV-430 -439. 8.Jachimsk, J. and Mierzwa, W., 1988, Digital Image Rectification on Microcomputers for Orthophoto Production, XVI ISPRS Congress, Commission IV, Kyoto, Japan, pp. II-135-144. 9.Houssay, P. and Brossier, R., 1988, Digital Orthophotograph at IGN - France, XVI ISPRS Congress, Commission IV, Kyoto, Japan, pp.IV-346-352.M.

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