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Deep learning for processing and analysis of remote sensing big data:a technical review

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Big Earth Data 2022年第4期6卷 527-560页

作者： Xin Zhang Ya’nan Zhou jiancheng luo State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingChina College of Hydrology and Water Resources Hohai UniversityNanjingChina

In recent years,the rapid development of Earth observation tech-nology has produced an increasing growth in remote sensing big data,posing serious challenges for effective and efficient proces-sing and ***,there has been a massive rise in deeplearningbased algorithms for remote sensing tasks,providing a large opportunity for remote sensing big *** this article,we initially summarize the features of remote sensing big ***,following the pipeline of remote sensing tasks,a detailed and technical review is conducted to discuss how deep learning has been applied to the processing and analysis of remote sensing data,including geometric and radiometric processing,cloud masking,data fusion,object detection and extraction,landuse/cover classification,change detection and multitemporal ***,we discussed technical challenges and concluded directions for future research in deep-learning-based applications for remote sensing big data.

关键词： Remote sensing big data deep learning technical review

Synthesis and Characterization of Nickel Nanorods Transferred from Hydrotherally Decomposed Rod-like NiS

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Journal of Materials Science & Technology 2007年第5期23卷 587-590页

作者： Yu luo jiancheng ZHANG Yue SHEN Shutao JIANG Guoyong LIU School of Materials Science and Engineering Shanghai University Shanghai 200072 China

Powders of hexagonal-structured single-crystalline nickel sulfide nanorods have been synthesized in cetyltrimethy ammonium bromide （CTAB）/water/hexane/n-pentanol quaternary microemulsion under hydrothermal conditions by using the reaction of carbamide and carbon disulfide as a sulfide source. Single-crystalline nickel nanorods have been synthesized via thermal decomposition by using single-crystalline nickel sulfide nanorods as precursor. The influence of different reaction parameters on the morphology of the products has been investigated. The structure, morphology and magnetic properties of the products were characterized by X-ray diffraction （XRD）, transmission electron microscope （TEM）, calorimeter （TGA-DSC） and vibrating sample magnetometer showed that the specific saturation magnetization （σs） and 37.5 emu/g and 68.50e, respectively. thermogravimetric analysis-differential scanning （VSM）. The results of coercivity values （Hc） magnetic measurements of nickel nanorods were

关键词： Hydrothermal microemulsion Nickel sulfide nanorods Nickel nanorods Magnetic properties

China Digital Ocean Prototype System

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International Journal of Digital Earth 2011年第3期4卷 211-222页

作者： Xin Zhang Wen Dong Sihai Li jiancheng luo Tianhe Chi Institute of Remote Sensing Applications Chinese Academy of SciencesBeijing 100101China National Marine Data&Information Service State Oceanic AdministrationTianjin 300171China

Digital Ocean is a new research domain of Digital *** of the spatiotemporal,three-dimensional(3D)and intrinsically dynamic nature of ocean data,it is more difficult to make a breakthrough in this *** construction of the China Digital Ocean Prototype System(CDOPS)pushes Digital Ocean a step forward from its operation as a mere concept to its achievement as a realistic *** this paper,the technical framework of the CDOPS is discussed,including its data,function,and application ***,two key technologies are studied in detail that will enable the construction of the 3D ocean environment and the visualization of the ocean model output *** demonstrations show that the CDOPS provides a technical reference for the development of Digital *** paper is based on an ongoing research project of the development of CDOPS that aims at the facilitation,integration,sharing,accessing,visualization,and use of the ocean data and model computing data from the Digital Earth perspective.

关键词： Digital Ocean visualization ocean three-dimensional data China Digital Ocean Prototype System

Basic theory and key technologies for marine geographic information system

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Acta Oceanologica Sinica 2006年第2期25卷 80-86页

作者： SU Fenzhen YANG Xiaomei XU Jun ZHANG Tianyu luo jiancheng Institute of Geography Science and Resource Research Chinese Academy of Sciences Beijing100101 China Marine Geographic Information System Center State Key Laboratory of Geographical Information System Chinese Academy of Sciences Beijing 100101 China Department of Geography University of Wisconsin-Madison Madison Wisconsin 53706 USA

Marine geographic information system （MGIS） has great ability to deal with the spatio-temporal problems and has potential superiority when it is applied to oceanography. Using the feature extraction of oceanic phenomena as a case study, the functions of the MGIS are analyzed, and thus the position of MGIS in the oceanography is defined. Comparing the requirement of MGIS with that of the traditional GIS which has been developed in the terrestrial applications in the past four decades, the frame for the functions of MGIS is constructed. According to the established MGIS, some key technologies are discussed in detail with emphasis on the specialities which can distinguish the MGIS from the traditional GIS.

关键词： marine geographic information system remote sensing function structure data mining

Bathymetric Inversion of South China Sea from Satellite Altimetry Data

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Geo-Spatial Information Science 2003年第1期6卷 19-23页

作者： luo Jia LI jiancheng CHAO Dingbo School of Geodesy and Geomaties Wuhan University

This paper focuses on the study of ocean bathymetric inversion from satellite altimeter data by using FFT *** this study,the freeair gravity anomalies over the South China Sea are determined by the satellite altimeter data of GEOSAT,ERS1,ERS2 and T/*** the 2.5′×2.5′ bathymetry model in South China Sea is calculated from the gravity anomalies with the inversion model *** the analysis of the inversion and the comparison between the results,some conclusions can be drawn.

关键词： bathymetry satellite altimetry gravity anomaly FFT

Effects of compound rehmannia formula on dopamine transporter content in the corpus striatum of Parkinson's disease rats treated with levodopa

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Neural Regeneration Research 2011年第12期6卷 898-902页

作者： Ruijng luo jiancheng He Shanghai University of Traditional Chinese Medicine Shanghai 201203 China

Long-term application of levodopa （L-3, 4-dihydroxyphenylalanine, L-DOPA） for Parkinson＇s disease can lead to adverse effects and reduce the amount of dopamine transporter （DAT） in the corpus striatum. The present study attempted to vedfy whether increasing the amount of DAT can reduce the adverse effects of L-DOPA. The specific radioactive uptake value of DAT in the corpus striatum of the lesioned hemisphere was significantly decreased, but was significantly increased following administration of compound rehmannia formula [Radix rehmanniae preparata （prepared rehmannia root）, Concha margantifera usta （nacre）, Radix paeoniae alba （white peony alba）, Radix salviae miltiotThizae （Danshen root）, Scorpio （scorpion）, green tea] for 4 weeks. The changes in DAT 1251-beta-carbomethoxy-3 beta-（4-iodophenyl） tropane autoradiography were consistent with those in radioactivity. The results revealed that the compound rehmannia formula can reduce the adverse effects of L-DOPA in treating Parkinson＇s disease, possibly by increasing the amount of DAT.

关键词： compound rehmannia formula Parkinson's disease levodopa dopamine transporter autoradiography radioactivity

Land cover automatic classification based on RS-Informatic Tupu

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遥感学报 2014年第4期18卷 788-803页

作者： XIA Liegang luo jiancheng WANG Weihong SHEN Zhanfeng Institute of Remote Sensing and Digital Earth Chinese Academy of Science Beijing 100101 China College of Computer Science and Technology Zhejiang University of Technology Hangzhou 310023 China

The importance of the extraction and cognition of geo-information has been increasingly highlighted in the face of the massive accumulation of remote sensing data and the lack of application information. According to the geo-informatics Tupu methodology regarding the visual cognitive process, Tupu-cognition can automatically interpret remotely sensed imagery. In this study, using a unified framework of geographic information systems, we extract the features of images step by step. Spatial-spectrum analysis is then executed in the geo-cognitive process described as ＂Perceive-Identify-Confirm＂. Algorithms like multiscale segmentation, feature analysis, and supervised learning are invoked to meet the application＇s requirements for automation and intelligence. In the cognitive application of land-cover information, we first establish the mechanism of prior knowledge management for automation. Second, a number of machine learning algorithms are employed to improve the intelligence. Finally, adaptive iteration is introduced to optimize the results. The data selected for this classification experiment are Advanced Land Observing Satellite （ALOS） multispeetral images in the Pearl River Delta. The land cover results are consistent with expectations and illustrate the feasibility of our method.

关键词： Tupu-cognition automatic interpretation land cover automatic classification

Accuracy Analysis of Geopotential Coefficients Recovered from In-situ Disturbing Potential by Energy Conservation Method

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Geo-Spatial Information Science 2007年第4期10卷 255-259页

作者： ZOU Xiancai LI jiancheng luo Jia XU Xinyu School of Geodesy and Geomatics 129 Luoyu Road Wuhan 430079 China

The characteristics of the normal equation created in recovering the Earth gravity model （EGM） by least-squares （LS） adjustment from the in-situ disturbing potential is discussed in detail. It can be concluded that the normal equation only depends on the orbit, and the choice of a priori gravity model has no effect on the LS solution. Therefore, the accuracy of the recovered gravity model can be accurately simulated. Starting from this point, four sets of disturbing potential along the orbit with different level of noise were simulated and were used to recover the EGM. The results show that on the current accuracy level of the accelerometer calibration, the accuracy of the EGM is not sufficient to reflect the time variability of the Earth＇s gravity field, as the dynamic method revealed.

关键词： energy conservation method disturbing potential least-squares

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带蒂鼻腔底黏骨膜瓣修补鼻中隔穿孔11例

临床耳鼻咽喉科杂志 2005年第20期19卷 935-936页

作者：罗建城揭阳市东山区第二人民医院耳鼻咽喉科广东揭阳522031

目的:探讨采用以鼻腔底后端为基蒂的黏骨膜瓣旋转修补鼻中隔穿孔的疗效。方法:用类似鼻中隔黏膜下矫正术的方法分离鼻中隔穿孔周边的黏软骨膜及骨膜,并向下连接左鼻腔底后端为基蒂的黏骨膜瓣,将黏骨膜瓣向后上旋转,覆盖并缝合于穿孔周... 详细信息

目的:探讨采用以鼻腔底后端为基蒂的黏骨膜瓣旋转修补鼻中隔穿孔的疗效。方法:用类似鼻中隔黏膜下矫正术的方法分离鼻中隔穿孔周边的黏软骨膜及骨膜,并向下连接左鼻腔底后端为基蒂的黏骨膜瓣,将黏骨膜瓣向后上旋转,覆盖并缝合于穿孔周边的黏软骨膜及骨膜袋内。结果:11例鼻中隔穿孔修补患者均一期愈合,修补成功。结论:采用自体带蒂鼻腔底黏骨膜瓣修补鼻中隔穿孔,取材方便;无排斥反应;带蒂黏骨膜瓣血供良好,成活率高;鼻腔底部黏骨膜面积宽而长,修补较大穿孔时,可根据穿孔的大小和形状,提供足够的移植材料。

关键词：鼻中隔鼻中隔穿孔修补术外科皮瓣