| IMU/DGPS supported photogrammetry in China |
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| 作者姓名： | 李英成 LI Xue-you ZHAO Ji-cheng GONG Xun-ping TANG Liang |
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| 作者单位： | Chinese Academy of Surveying & Mapping, Beijing, 100039, P.R. of China,Techedge GmbH Consulting & Software, Sohlehenring 18B, 85551 Kirchheim Germany |
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| 摘 要： | <正>People'sRepublicofChinaisoneofthemostrapidlydevelopingcountriesintheworldtoday.Thereisagreatdemandonhighlyactualandaccuratespatialinformationofthewholecountry,especiallyofWestChinawhichbecomesthefocusofdevelopmentoftheChinesegovernmentrightnowandinthenextyears,butwherestillnotenoughtopographicmapsareavailable.ThisraisesgreatchallengestothesurveyingandmappingcommunityinChina.FacingthenewchallengestheChineseAcademyofSurveyingandMapping(CASM)starteditspioneerworkearly2002toexplorenewtechniquesandtechnologiesavailabletodaytowardincreasingthemapproductivity.WithimportofaCCNS/AEROcontrolsysteminNovember2002,thefirstDGPS/IMU-basedphotogrammetricprojectinChinawassuccessfullyaccomplishedjointlybyCASM,theGermany-basedcompaniesIGIandTechedge.Twophotogrammetricblocksof1:4,000and1:20,000photoscales,respectively,wereflowninAnyang,China.Directgeoreferencingandintegratedsensororientationwereconducted.Resultsachievedwereprovenbyusinggroundcheckpointsandcomparedwiththoseofaerialtriangulation.Orthophotosgeneratedbasedondir
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| 关 键 词： | Differential Global Position System (DGPS) Inertial Measurement Unit (IMU) Direct Georeferencing (DG) Integrated Sensor Orientation (ISO) Photogrammetric Processing and Production |
IMU/DGPS supported photogrammetry in China |
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| LI Ying-cheng,LI Xue-you,ZHAO Ji-cheng,GONG Xun-ping,TANG Liang.IMU/DGPS supported photogrammetry in China[J].Science of Surveying and Mapping,2004,29(Z1):42-46. |
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| Authors: | LI Ying-cheng LI Xue-you ZHAO Ji-cheng GONG Xun-ping TANG Liang |
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| Abstract: | People's Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual and accurate spatial information of the whole country, especially of West China which becomes the focus of development of the Chinese government right now and in the next years, but where still not enough topographic maps are available. This raises great challenges to the surveying and mapping community in China. Facing the new challenges the Chinese Academy of Surveying and Mapping ( CASM ) started its pioneer work early 2002 to explore new techniques and technologies available today toward increasing the map productivity. With import of a CCNS/AEROcontrol system in November 2002, the first DGPS/IMU-based photogrammetric project in China was successfully accomplished jointly by CASM, the Germany-based companies IGI and Techedge. Two photogrammetric blocks of 1:4, 000 and 1: 20,000 photo scales, respectively, were flown in Anyang, China. Direct georeferencing and integrated sensor orientation were conducted. Results achieved were proven by using ground checkpoints and compared with those of aerial triangulation. Orthophotos generated based on direct georeferencing shows the high efficiency and quality, and thus proved the promise of the new technology. Furthermore several DGPS/IMU-based photogammetric projects was accomplished one by one and a big project of more than 100, 000 km2 in the Inner Mongolia will be started in August 2003. The paper presents experiences with DGPS/IMU-based photogrammetry in China. Results achieved in concrete projects are shown and evaluated.Politic and technical specialties in China are discussed. Conclusions outline the potential of DGPS/IMU-based photogrammetric production in China. |
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| Keywords: | Differential Global Position System (DGPS) Inertial Measurement Unit (IMU) Direct Georeferencing (DG) Integrated Sensor Orientation (ISO) Photogrammetric Processing and Production photogrammetry supported production outline potential technical concrete paper presents Inner Mongolia projects promise new technology based high efficiency quality Results ground aerial triangulation |
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