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The role of machine intelligence in photogrammetric 3D modeling-an overview and perspectives

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International Journal of Digital Earth 2021年第1期14卷 15-31页

作者： Rongjun Qin armin gruen Department of Civil Environmental and Geodetic EngineeringThe Ohio State UniversityColumbusOHUSA Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOHUSA Translational Data Analytics Institute The Ohio State UniversityColumbusOHUSA Information Architecture ETH ZürichZürichSwitzerland

The process of modern photogrammetry converts images and/or LiDAR data into usable 2D/3D/4D *** photogrammetric industry offers engineering-grade hardware and software components for various *** some components of the data processing pipeline work already automatically,there is still substantial manual involvement required in order to obtain reliable and high-quality *** recent development of machine learning techniques has attracted a great attention in its potential to address complex tasks that traditionally require manual *** is therefore worth revisiting the role and existing efforts of machine learning techniques in the field of photogrammetry,as well as its neighboring field computer *** paper provides an overview of the state-of-the-art efforts in machine learning in bringing the automated and‘intelligent’component to photogrammetry,computer vision and(to a lesser degree)to remote *** will primarily cover the relevant efforts following a typical 3D photogrammetric processing pipeline:(1)data acquisition(2)georeferencing/interest point matching(3)Digital Surface Model generation(4)semantic interpretations,followed by conclusions and our insights.

关键词： Photogrammetry camera calibration 3D modeling machine learning object recognition semantic interpretation

SMART Cities: The need for spatial intelligence

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Geo-Spatial Information Science 2013年第1期16卷 3-6页

作者： armin gruen 不详

For the first time in human history,more than half of the global population lives in urban *** will increase to 70%by ***’s population has almost doubled in a decade,from less than 13 million residents in 2000 to an estimated 23 million today,and by 2050 it is expected to exceed 50 *** cover just 2%of the Earth’s surface yet consume about 75%of the world’s *** it becomes obvious that cities are the key element when coping with climate change and reduction in the use of *** city growth can hardly be avoided,one must be able to cope with its *** it is essential that harmony exists or is generated among the spatial,social,economical and environmental aspects of a city and between their *** harmony hinges on three key pillars:Earth environment,economic development and social *** pillars are balanced through *** this context the concept of a SMART city has ***,“smartness”is expressed by its 6-axes model:smart economy,mobility,environment,people,living and *** if all these elements are in balance a city can fulfil its request for sustainability and quality of *** other words,a city can be called“smart”if investments in human and social capital and traditional(transport)and modern information and communication technologies,information and communication infrastructure will fuel sustainable economic development,a high quality of life,with a wise management of natural resources,through participatory governance.

关键词： harmony consequences doubled

Geoinformatics education and outreach:looking forward

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Geo-Spatial Information Science 2017年第2期20卷 209-217页

作者： Jianya Gong Peng Yue Tsehaie Woldai Fuan Tsai Anjana Vyas Huayi Wu armin gruen Le Wang Igor Musikhin State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanChina School of Geosciences University of the WitwatersrandJohannesburgSouth Africa Center for Space and Remote Sensing Research National Central UniversityTaiwanChina Centre for Advanced Geomatics CEPT UniversityAhmedabadIndia Chair of Information Architecture Photogrammetry and Remote SensingET H ZurichZurichSwitzerland Department of Geography The State University of New York at BuffaloBuffaloNYUSA Department of International and Innovation Activities Siberian State University of Geosystems and TechnologiesNovosibirskRussia

Geoinformatics education is a key factor for sustainable development of geo-spatial sciences and *** have been a variety of educational activities focusing on education and training,technology transfer,and capability building in photogrammetry,remote sensing,and spatial information science,together known as *** education is an essential mission and even determinant in the ISPRS *** paper discusses key issues in Geoinformatics *** reviews educational activities from the ISPRS perspective and summarizes lessons learned from these actions.A vision towards future trends of Geoinformatics education in the ISPRS is provided.

关键词： Geoinformatics education and training E-learning summer school

FORSAT:a 3D forest monitoring system for cover mapping and volumetric 3D change detection

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International Journal of Digital Earth 2020年第8期13卷 854-885页

作者： Efstratios Stylianidis Devrim Akca Daniela Poli Martin Hofer armin gruen Victor Sanchez Martin Konstantinos Smagas Andreas Walli Orhan Altan Elisa Jimeno Alejandro Garcia School of Spatial Planning and Development Aristotle University of ThessalonikiThessalonikiGreece Department of Civil Engineering Isik UniversitySileIstanbulTurkey DiXplorer AG ZurichSwitzerland GeoVille Information Systems GmbH InnsbruckAustria Chair of Information Architecture ETH ZurichSwitzerland Ingeniería Y Soluciones Informáticas S.L. SevillaSpain GeoImaging Ltd NicosiaCyprus Ekinoks Surveying Software Engineering Ltd IstanbulTurkey

A 3D forest monitoring system,called FORSAT(a satellite very high resolution image processing platform for forest assessment),was developed for the extraction of 3D geometric forest information from very high resolution(VHR)satellite imagery and the automatic 3D change *** is composed of two complementary tasks:(1)the geometric and radiometric processing of satellite optical imagery and digital surface model(DSM)reconstruction by using a precise and robust image matching approach specially designed for VHR satellite imagery,(2)3D surface comparison for change *** allows the users to import DSMs,align them using an advanced 3D surface matching approach and calculate the 3D differences and volume changes(together with precision values)between *** is a single source and flexible forest information solution,allowing expert and non-expert remote sensing users to monitor forests in three and four(time)*** geometric resolution and thematic content of VHR optical imagery are sufficient for many forest information needs such as deforestation,clear-cut and fire severity *** capacity and benefits of FORSAT,as a forest information system contributing to the sustainable forest management,have been tested and validated in case studies located in Austria,Switzerland and Spain.

关键词： Deforestation 3D VHR satellite imagery orientation image matching DSM generation co-registration volumetric change detection volume precision

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解析测图仪的象片三角测量

铁道勘察 1984年第4期 25-29页

作者： armin gruen 龚绪进刘冠军

本文叙述了解析测图仪仅用天然地物连接点进行象片三角测量的方法。它不再需要人工象片剌点或地物点设标。这样就得到一个非常经济的三角测量系统。一个以假设数据为基础的算例,根据解析测图仪观测与立体坐标量测仪观测方法来进行比较,... 详细信息

本文叙述了解析测图仪仅用天然地物连接点进行象片三角测量的方法。它不再需要人工象片剌点或地物点设标。这样就得到一个非常经济的三角测量系统。一个以假设数据为基础的算例,根据解析测图仪观测与立体坐标量测仪观测方法来进行比较,显示出这种方法可以得到满意的精度和可靠的观测网结构。有人工连接点的试验场的试验结果表明,使用这种天然地物连接点方法,影象坐标的预期精度约为7μm。这甚至可以满足地形测区很高精度的要求。就地籍测量或控制网加密目的而言,当同时还采用设标的地面点时,可以预期这些影象点的精度为:x,y,≈3μm（平面）,z=5μm（高程）。

关键词：精度坐标影象解析测图仪立体测图仪三角测量测区立体坐标量测仪天然地物连接点平差模型三角测量方法三角测量技术

Reality-based generation of virtual environments for digital earth

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International Journal of Digital Earth 2008年第1期1卷 88-106,I0006页

作者： A.gruen Institute of Geodesy and Photogrammetry ETH ZurichSwitzerland

Digital Earth essentially consists of 3D and moreD models and attached semantic information(attributes).Techniques for generating such models efficiently are required very ***-based 3D modelling using images as prime data source plays an important role in this *** contain a wealth of information that can be advantageously used for model *** are increasingly available from satellite,aerial and terrestrial *** contribution briefly describes some of the problems which we encounter if the process of model generation is to be *** the help of some examples from Digital Terrain Model generation,Cultural Heritage and 3D city modelling we show briefly what can be *** attention is directed towards the use of model helicopters for image data *** problems with interactive visualisation are ***,issues surrounding R&D,professional practice and education are also addressed.

关键词： photogrammetry 3D modelling digital terrain models 3D city modelling cultural heritage texture mapping visualisation