Photogrammetrie Fernerkundung Geoinformation最新文献_第6页

MACS-TumbleCam - A Novel Approach for Aerial Oblique Imaging MACS-TumbleCam -一种新的航空倾斜成像方法

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-08-01 DOI: 10.1127/1432-8364/2014/0241

J. Brauchle, W. Rüther-Kindel, R. Berger

{"title":"MACS-TumbleCam - A Novel Approach for Aerial Oblique Imaging","authors":"J. Brauchle, W. Rüther-Kindel, R. Berger","doi":"10.1127/1432-8364/2014/0241","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0241","url":null,"abstract":"The ATISS measurement drone, developed at the University of Applied Sciences Wildau, is an electrical powered autonomous motor glider with a maximum take-off weight of 25 kg including a payload capacity of up to 10 kg. Two engines enable ultra short take-off procedures and the motor glider design results in a 1 h endurance. The concept of ATISS is based on the idea to strictly separate \u0000between aircraft and payload functions, which makes it a very flexible research platform for miscellaneous applications. \u0000In a project together with German Aerospace Center (DLR) this carrier was used for demonstrating a novel approach in high-resolution digital terrain modelling. A lightweight, 3D-capable photogrammetric camera called MACS-TumbleCam was developed at the DLR Berlin especially for the ATISS payload concept. The unique feature of this camera system isthe special combination of two synchronized digital cameras with an adjustable relative alignment. \u0000One camera head is oriented in a fixed nadir position while the other one can be driven to variable oblique orientations by a robotic actuator. Thus it is possible to take images from very different view directions for almost every object on the ground. \u0000Due to a parametric boresight calibration a lowcost inertial orientation system can be used. The evaluation of the first test flights shows features of the system, i.e. derived high-precision 3Dmodels of urban structures with 3 cm ground pixel resolution and high-resolution facade textures.","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"72 1","pages":"253-263"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83733514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The effect of vegetation type and density on X-band SAR backscatter after forest fires 植被类型和密度对森林火灾后x波段SAR后向散射的影响

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-08-01 DOI: 10.1127/1432-8364/2014/0222

E. Bernhard, A. Twele, S. Martinis

{"title":"The effect of vegetation type and density on X-band SAR backscatter after forest fires","authors":"E. Bernhard, A. Twele, S. Martinis","doi":"10.1127/1432-8364/2014/0222","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0222","url":null,"abstract":"Various frequencies (e.g. visible light, infrared, microwaves) from remote sensing sensors can be used for active fire mapping, forest fire detection and fire emission assessment. However, little is known about the applicability of X-band SAR data for burned area detection. This paper presents a detailed SAR backscatter coefficient analysis and accuracy assessment with respect to CORINE 2006 land cover data. For this purpose five forest fires have been analyzed. Dry as well as wet acquisition conditions have been taken into account. The analysis demonstrated that largest differences in backscatter coefficients between pre- and post-fire conditions were linked to tall and dense vegetation types. Contrarily, scant vegetation was marked by lowest signal differences. High correlation coefficients have been obtained from regression analysis between vegetation indices and SAR backscatter changes. Moreover, a burned area classification algorithm with different thresholds for each vegetation type has been applied. The classification result illustrated that areas abundantly covered with vegetation showed classification accuracies of ~91 %, whereas sparse vegetation achieved ~5 % accuracies.","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"25 1","pages":"275-285"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79378207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Evaluation of a Light-weight Lidar and a Photogrammetric System for Unmanned Airborne Mapping Applications : [Bewertung eines Lidar-systems mit geringem Gewicht und eines photogrammetrischen Systems für Anwendungen auf einem UAV] 对低重量的举报系统和用于UAV应用的图像举报系统的评估

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-08-01 DOI: 10.1127/1432-8364/2014/0223

G. Conte, P. Rudol, Patrick Doherty

引用次数: 7

Berichte von Veranstaltungen 活动报告

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-06-01 DOI: 10.1127/1432-8364/2014/0221

S. Hinz

引用次数: 0

The Assessment of using an Intelligent Algorithm for the Interpolation of Elevation in the DTM Generation Verwendung von Methoden der künstlichen Intelligenz zur Ableitung von Höhenmodellen DTM生成中高程插值智能算法的评价[j] . Höhenmodellen

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-06-01 DOI: 10.1127/1432-8364/2014/0220

Hossein Bagheri, Saeed Sadeghian, Seyyed Yousef Sadjadi

引用次数: 13

The Metrology of Directional, Spectral Reflectance Factor Measurements Based on Area Format Imaging by UAVs Messung von gerichteten Reflektanzen bei hyperspektralen Flächenkameras auf UAVs 基于区域格式成像的无人机定向光谱反射系数测量方法[j] . Flächenkameras auf无人机

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-06-01 DOI: 10.1127/1432-8364/2014/0218

Eija Honkavaara, Lauri Markelin, T. Hakala, Jouni I. Peltoniemi

引用次数: 22

A Method of Evaluating the Internal Precision of Multi-View Stereo Dense Reconstruction, Applied on Parthenon Frieze Methode zur Bewertung der internen Genauigkeit einer Dense-Stereo-Messung, dargestellt am Parthenonfries 一种多视点立体密集重建内部精度评价方法，应用于帕台农神庙Frieze方法

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-06-01 DOI: 10.1127/1432-8364/2014/0219

Dimitrios Skarlatos, Stavroula Kiparissi, Sofia Theodoridou, Dimitrios Pandermalis

引用次数: 1

Geometry and Colour Based Classification of Urban Point Cloud Scenes Using a Supervised Self-Organizing Map Geometrie- und farbbasierte Punktwolkenklassifizierung von urbanen Laserscanningszenen mittels überwachter SOM-Klassifikation 根据图形计算和颜色基本对照的城市点计算结果超高

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-06-01 DOI: 10.1127/1432-8364/2014/0216

Eric Matti, Stephan Nebiker

引用次数: 5

Geometric Accuracy Assessment of Classified Land Use / Land Cover Changes 土地利用/土地覆被变化分类的几何精度评价

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-05-01 DOI: 10.1127/1432-8364/2014/0211

M. Möller, J. Birger, C. Gläßer

引用次数: 3

3D-Landschaftsvisualisierungen für ein nachhaltiges Management zum Erhalt und zur Pflege des UNESCO Weltkulturerbes Dessau-Wörlitzer Gartenreich 3D-Landscape Visualisation to sup- port upkeeping and maintenance of the UNESCO cultural world heritage of the Garden Kingdom of Dessau–Wörlitz Gartenreich 联合国教科文组织要保存和保存世界文化遗产到隐居、要隐居和美化联合国教科文组织文摘世界传统的3d世界景观表演

Photogrammetrie Fernerkundung Geoinformation Pub Date : 2014-05-01 DOI: 10.1127/1432-8364/2014/0213

Detlef Thürkow, Michael Pokladek, C. Dette, Cornelia Glässer

引用次数: 0