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Object oriented land cover classification using ALS and GeoEye imagery over mining area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 733-737页

作者： YU Hai-yang, CHENG Gang, GE Xiao-san, LU Xiao-ping key laboratory of {2. spatial Information technologies of State Bureau of Surveying and Mapping, henan polytechnic university, Jiaozuo 454000, china key laboratory of {2. spatial Information technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454000 China

An object oriented coal mining land cover classification method based on semantically meaningful image segmentation and image combination of GeoEye imagery and airborne laser scanning (ALS) data was presented. First, DEM, DSM and nDSM (normalized Digital Surface Model, nDSM) were extracted from ALS data. The GeoEye imagery and DSM data were combined to create segmented objects based on neighbor regions merge method. Then 10 kinds of objects were extracted. Different kinds of vegetation objects, including crop, grass, shrub and tree, can be extracted by using NDVI and height value of nDSM. Water and coal pile field was extracted by using NDWI and the standard deviation of DSM method. Height differences also can be used to distinguish buildings from road and vacant land, and accurate building contour information can be extracted by using relationship of neighbor objects and morphological method. The test result shows that the total classification accuracy of the presented method is 90.78% and the kappa coefficient is 0.891 4.

关键词： airborne laser scanning GeoEye nDSM object oriented classification mining areas

Vision navigation algorithm for mine agent based on quaternion

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中国有色金属学会会刊：英文版 2011年第S3期21卷 610-615页

作者： LI Ke-zhao1, 4, LEI Wei-wei1, 2. GUO Zeng-zhang1, 2. WU Li-xin3, ZHANG Qin4 1. School of Survey and Land Information Engineering, henan polytechnic {2., Jiaozuo 454003, china 2. key laboratory of mine spatial Information technologies of State Bureau of Surveying and Mapping, henan polytechnic {2., Jiaozuo 454003, china 3. College of Resources and Civil Engineering, Northeastern {2., Shenyang 110819, china 4. College of Geology Engineering and Geomatics, Chang’an {2., Xi’an 710054, china [a] School of Survey and Land Information Engineering Henan Polytechnic University Jiaozuo 454003 China [b] key laboratory of {2. spatial Information technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454003 China [c] College of Resources and Civil Engineering Northeastern University Shenyang 110819 China [d] College of Geology Engineering and Geomatics Chang'an University Xi'an 710054 China

Autonomous relative navigation is the key technology in mining or rescuing. On the basis of mine requirement and the theories of machine vision, an autonomous relative navigation algorithm for mine agent based on quaternion was proposed. In rotation transformation, this algorithm was represented by using quaternion. Because the Jacobi matrix of this method is lower than that of Hall algorithm, the calculation efficiency is improved by using this algorithm. The results of these experiments show that the computation burden of this algorithm based on quaternion is about half that of Hall algorithm. This algorithm based on quaternion is improved as a valid way to solve the problem of mine real-time navigation.

关键词： quaternion mine agent vision navigation

Methods of 3D map storage based on geo-referenced image database

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中国有色金属学会会刊：英文版 2011年第S3期21卷 654-658页

作者： YUAN Zhan-liang1, 2. LI Xun1, WANG Jin-ling1, YUAN Qi-qi1, XU Dan2. DIAO Jing-jing2.1. School of Surveying and spatial Information Systems, university of New South Wales, NSW 2.32. Australia 2. School of Surveying and Mapping, {2. polytechnic university, Jiaozuo 454000, china [a] School of Surveying and spatial Information Systems University of New South Wales NSW 2032 Australia [b] School of Surveying and Mapping Henan Polytechnic University Jiaozuo 454000 China

In order to store and manage a large amount of ground and indoor image data with high resolution, an integrated data management system needs to be developed. Possible strategies for this purpose were discussed together with initial test on the newly defined 3D maps. The features of such 3D maps, data organization, key techniques used for the map storage, such as image compression based on wavelet transformation, quadtree index, update and retrieval, were analyzed, with the goals of bringing some profits to the storage and management of the digital data in the visual construction of digital mine, digital city and digital community.

关键词： 3D map geo-referenced image image database storage technology

Annual integral changes of time serial NDVI in mining subsidence area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 583-588页

作者： MA Chao1, GUO Zeng-zhang1, ZHANG Xiao-ke2. HAN Rui-mei1 1. key laboratory of {2. spatial Information technologies of State Bureau of Surveying & Mapping, henan polytechnic university, Jiaozuo 454000, china 2. School of Coal Mining Engineering, Taiyuan university of Technology, Taiyuan 03002., china [a] key laboratory of {2. spatial Information technologies of State Bureau of Surveying & Mapping Henan Polytechnic University Jiaozuo 454000 China [b] School of Coal Mining Engineering Taiyuan University of Technology Taiyuan 030024 China

By means of MORTRAN4 model of FLASSH module, an atmospheric correction of the SPOT II/IV data of four-year period for eight experimental coal faces of Lu'an mine area was done. The mining-affected zones were obtained with probability integral method. The normalized difference vegetation index (NDVI) and its mean were obtained by band ratio calculation at the mining subsidence area. Using FOURIER4 model of the fast Fourier transform (FFT) of discrete Fourier analysis theory, the mean NDVI time series data set was reconstructed. With the mean of NDVI transformed into amplitude and the phonological information transformed into phase, the law of NDVI variation by monthly, quarterly, annual were obtained. The annual integral of the time series of NDVI Fourier function (ANDVI) was obtained. The results show that an experience formula of ANDVI variation accompanies with mining time; A fast estimation formula of NPP by means of a coefficient of mining disturbance such as γ.

关键词： Lu’an mine area annual integral of NDVI net primary productivity coefficient of mining disturbance

In situ synthesis of DNA micro-arrays using typography technique

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Science china Chemistry 2007年第1期50卷 75-83页

作者： TANG JianXin 1,2.,HE NongYue 1,2.3 &LI Song 1 1State key laboratory of Bioelectronics,Southeast {2.,Nanjing 2.0096,china 2.0} laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province,Hunan {2. of Tech- nology,Zhuzhou 412.08,china 3Zhongshan Huoju polytechnic,Zhongshan 52.436,china 1. State key laboratory of Bioelectronics Southeast University Nanjing 210096 China 2. key laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of Technology Zhuzhou 412008 China 3. Zhongshan Huoju polytechnic Zhongshan 528436 China

A novel typography technique was developed to in situ synthesize oligonucleotide arrays on glass slide,which has the celerity,high spatial resolution,lower cost,reliable operation,and high synthetic *** principle and process of the typography technique for fabricating gene-chips have been described in detail.A suit of poly(terafluoroethylene)devices for synthesizing oligonucleotide arrays were designed and prepared,and the fiber tubes with a number of nano-or micron-channels were em- *** oligonucleotide arrays of 16 and 160 features with four different probes were synthesized using the typography *** four specific oligonucleotide probes including the matched and the mismatched by the fluorescent target sequence gave obviously different hybridization fluorescent *** was indicated that the gene-chip fabricated by the typography method could be used to rapidly screen single-nucleotide polymorphisms(SNP)and to detect mutations.

关键词： typography oligonucleotide in situ synthesis DNA microarrays

Automatic Coal mine Disaster Monitoring System based spatial Information Service

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Automatic Coal Mine Disaster Monitoring System based Spatial...

Study on Design of Protective Coal Pillar for High Buildings

2.10 International Conference on Computer and Communication technologies in Agriculture Engineering (CCTAE 2.10)

作者： Xiaoping Lu key laboratory of {2. spatial Information technologies of SBSM henan polytechnic university JiaoZuo henan Province china Xiaosan Ge key laboratory of {2. spatial Information technologies of SBSM henan polytechnic university JiaoZuo henan Province china

china is the largest coal producing country in the world,but its development pattern of coal industry is still at a relatively low level,there are still many problems to be solved in *** information technology has not fully been utilized in coal disaster prevention and *** is rare to watch an integrated application of digital mine,and coal warning system based on {2. information is not really set *** paper explored coal mine safety monitoring based on {2. information service,and discuss present status and existing *** coal disaster monitoring based {2. information service is *** also go into detail this system and its key issues in this paper.

关键词： spatial Information Service Coal mine Safety Management Disaster Monitoring System.

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Study on Design of Protective Coal Pillar for High Buildings

The Application Study about Ground-Based GPS Precipitable Water Vapor in Shijiazhuang and Qinhuangdao Region

2.10(沈阳)国际安全科学与技术学术研讨会

作者： CHAI Hua-bin~(1,2. (1.State Bureau of Surveying and Mapping key laboratory of {2. spatial Information technologies,henan polytechnic university,Jiaozuo henan 454003,china 2.School of Surveying and Land Information Engineering,henan polytechnic university,Jiaozuo 454003,china)

＜正＞Considering the fact that the protective coal pillar is affected by the point load of high buildings,the calculating formula of the critical load and actual load of the protective coal pillar were worked *** the stability of the protective coal pillar under the load of the high buildings on the ground was analyzed by the *** to the geometric and physical natures of the major influence radius,which is one of the predicting parameters of surface displacement and distortion,a simple and useful method of designing protective coal pillar for high buildings were *** shows that the mining rate and the stability of the protective coal pillar can be improved,at the same time the ground high buildings can be protected from the mining damage by adopting the method.

关键词： high building protective coal pillar major influence radius stability

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The Application Study about Ground-Based GPS Precipitable Wa...

3-D Lightning Location Solution and Precision Analysis of Cloud Flash

2.10 3rd IEEE International Conference on Computer Science and Information Technology—ICCSIT 2.10

作者： Wang Yong 1 2.1.College of Traffic and Surveying Hebei polytechnic university Tangshan {2. 2.key laboratory of mine spatial Information technologies (henan polytechnic university henan Bureau of Surveying and Mapping) State Bureau of Surveying and Mapping Jiaozuo {2. Ding Keliang School of Surveying and Civil spatial Information Beijing university of Civil Engineering and Architecture Beijing {2. He Rong School of Surveying and Land Infomation Engineering henan polytechnic university Jiaozuo {2. Liu Yanping College of Traffic and Surveying Hebei polytechnic university Tangshan {2.

Water vapor is a highly variable parameter in atmospheric processes and it plays a crucial role in atmospheric motions on a wide range of scales in space and time. GPS technique has been widely used in retrieving precipitable water vapor. Firstly the article has retrieved precipitable water vapor of Qinhuangdao and Shijiazhuang stations by GPS technique. Then it has researched two aspects of precipitable water vapor. One is the spatial and temporal distribution characters of precipitable water vapor;the other is the relation between precipitable water vapor and actual rainfall. The value of GPS precipitable water vapor of Shijiazhuang is higher than the value of GPS precipitable water vapor of Qinhuangdao, which is accord to the formula that the precipitable water vapor is reduced from south to north. During the different time of a day, there are differ degree fluctuate which the min value present to morning and the max value present to evening. It also compared the GPS precipitable water vapor and actual rainfall. Although the time of max value about rainfall is not identical to the time of max value about precipitable water vapor, rainfall has occurred mostly in the time while the value of precpitable water vapor is high.

关键词： Global positioning system Precipitable water vapor Zenith tropospheric delay Zenith wet delay

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Wuhan university Journal of Natural Sciences 2009年第3期14卷 241-244页

作者： ZHANG Ping1,2. ZHAO Wenguang2.3?, HU Zhixiang2.3, WEN Yinping2.3 1. School of Architecture and Urban Planning, Huazhong university of Science and Technology, Wuhan 430074, Hubei, china 2. School of Civil Engineering and Mechanics, Huazhong university of Science and Technology, Wuhan 430074, Hubei, china 3. Hubei key laboratory of Control Structure, Huazhong university of Science and Technology, Wuhan 430074, Hubei, china School of Architecture and Urban Planning Huazhong University of Science and Technology Wuhan 430074 Hubei China School of Civil Engineering and Mechanics Huazhong University of Science and Technology Wuhan 430074 Hubei China Hubei key laboratory of Control Structure Huazhong University of Science and Technology Wuhan 430074 Hubei China

Using the spatial coordinates of detection stations and the time of arrival of lightning wave, the observation equations can be expressed. For the large lightning detection network, the least square method is used to process the adjustment of observation data to find the most probable value of lightning position, and the result is assessed by the mean error and dilution of precision. Lightning location precision is affected by figure factor. The conclusion can be used in the design of location network, data processing, and data analysis.

关键词： 3-D lightning location cloud flash detection solution model dilution of precision figure factor