Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0229
Markus Immitzer, C. Atzberger
{"title":"Early Detection of Bark Beetle Infestation in Norway Spruce ( Picea abies , L.) using WorldView-2 Data Frühzeitige Erkennung von Borkenkä ferbefall an Fichten mittels WorldView-2 Satellitendaten","authors":"Markus Immitzer, C. Atzberger","doi":"10.1127/1432-8364/2014/0229","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0229","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"116 1","pages":"351-367"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75742051","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0227
K. Windisch, Günther Bronner, Reinfried Mansberger, Tatjana Koukal
{"title":"Derivation of Dominant Height and Yield Class of Forest Stands by Means of Airborne Remote Sensing Methods Ermittlung der Oberhöhe und der Ertragsklasse von Waldstandorten mit Hilfe flugzeuggestützter Fernerkundungsmethoden","authors":"K. Windisch, Günther Bronner, Reinfried Mansberger, Tatjana Koukal","doi":"10.1127/1432-8364/2014/0227","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0227","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"9 1","pages":"325-338"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74927926","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0234
K. Einzmann, Ng Wai-Tim, Markus Immitzer, M. Bachmann, N. Pinnel, C. Atzberger
Forest damage induced by bark beetle attacks can cause major economic losses in forest- ry. Hyperspectral remote sensing data and state of the art very high spatial resolution satellite data of- fer a great potential for assessing tree vitality. How- ever, a better understanding of the effects of vitality decrease and its impact on the spectral behaviour of needles is needed. Filling this knowledge gap can make a significant contribution to improve the in- terpretation of remote sensing data. However, it is still unclear which method for needle spectra col- lection is most suitable. In this work, two methods for spectral reflectance measurements of Norway spruce needles using portable spectroradiometers were tested and analysed: using a classical fore op- tic and a so-called contact probe. The spectral re- flectance data were evaluated with different statis- tical similarity measure techniques. Besides ana- lysing the measurements themselves, the methods were compared in terms of their practicality. Fur- thermore, the impact of storage on the reflection behaviour was investigated. The spectral measure- ments were performed in the field as well as in a laboratory and repeated three times during the 2013 growing season. Based on the obtained results we recommend measuring needle samples with the contact probe of portable spectroradiometers.
{"title":"Method Analysis for Collecting and Processing in-situ Hyperspectral Needle Reflectance Data for Monitoring Norway Spruce","authors":"K. Einzmann, Ng Wai-Tim, Markus Immitzer, M. Bachmann, N. Pinnel, C. Atzberger","doi":"10.1127/1432-8364/2014/0234","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0234","url":null,"abstract":"Forest damage induced by bark beetle \u0000attacks can cause major economic losses in forest- \u0000ry. Hyperspectral remote sensing data and state of \u0000the art very high spatial resolution satellite data of- \u0000fer a great potential for assessing tree vitality. How- \u0000ever, a better understanding of the effects of vitality \u0000decrease and its impact on the spectral behaviour of \u0000needles is needed. Filling this knowledge gap can \u0000make a significant contribution to improve the in- \u0000terpretation of remote sensing data. However, it is \u0000still unclear which method for needle spectra col- \u0000lection is most suitable. In this work, two methods \u0000for spectral reflectance measurements of Norway \u0000spruce needles using portable spectroradiometers \u0000were tested and analysed: using a classical fore op- \u0000tic and a so-called contact probe. The spectral re- \u0000flectance data were evaluated with different statis- \u0000tical similarity measure techniques. Besides ana- \u0000lysing the measurements themselves, the methods \u0000were compared in terms of their practicality. Fur- \u0000thermore, the impact of storage on the reflection \u0000behaviour was investigated. The spectral measure- \u0000ments were performed in the field as well as in a \u0000laboratory and repeated three times during the \u00002013 growing season. Based on the obtained results \u0000we recommend measuring needle samples with the \u0000contact probe of portable spectroradiometers.","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"20 1","pages":"423-434"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90036042","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0230
Nikolaus Neugebauer, Francesco Vuolo
{"title":"Crop Water Requirements on Regional Level using Remote Sensing Data – A Case Study in the Marchfeld Region Berechnung des Pflanzenwasserbedarfs für Sommerfeldfrüchte mittels Fernerkundungsdaten. Eine Fallstudie in der Marchfeld-Region","authors":"Nikolaus Neugebauer, Francesco Vuolo","doi":"10.1127/1432-8364/2014/0230","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0230","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"40 1","pages":"369-381"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87237366","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0228
E. Heine, I. Kogelbauer, A. Prokoph, W. Loiskandl
{"title":"Hydrographic Surveying of the Steppe Lake Neusiedl – Mapping the Lake Bed Topography and the Mud Layer Hydrographie des Steppensees Neusiedler See – Vermessung des Seebodens und der Schlammschicht","authors":"E. Heine, I. Kogelbauer, A. Prokoph, W. Loiskandl","doi":"10.1127/1432-8364/2014/0228","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0228","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"7 1","pages":"339-350"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74662486","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0235
F. Suppan, F. Frey-Roos
{"title":"Generating Resistance Surfaces for Wildlife Corridor Extraction Widerstandsmodelle für die Extrahierung von Wildtierkorridoren","authors":"F. Suppan, F. Frey-Roos","doi":"10.1127/1432-8364/2014/0235","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0235","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"28 1","pages":"435-450"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84260446","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}
Pub Date : 2014-10-01DOI: 10.1127/1432-8364/2014/0232
Francesco Vuolo, C. Atzberger
{"title":"Improving Land Cover Maps in Areas of Disagreement of Existing Products using NDVI Time Series of MODIS – Example for Europe Verbesserung von Landbedeckungskarten in Gebieten widersprüchlicher Grundlagen mit Hilfe der NDVI-Zeitreihe von MODIS – Beispiel für Europa","authors":"Francesco Vuolo, C. Atzberger","doi":"10.1127/1432-8364/2014/0232","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0232","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"54 1","pages":"393-407"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91137731","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}
Pub Date : 2014-08-01DOI: 10.1127/1432-8364/2014/0240
M. Rehák, R. Mabillard, J. Skaloud
This study shows the potential of navigation technologies in the field of position and orientation determination on a micro aerial vehicle (MAV), which weight does not exceed 5 kg. Although the MAV systems feature high flexibility and capability of flying into areas that are inhospitable or inaccessible to humans, the lack of precision in positioning and attitude estimation on-board decreases the gained value of the captured imagery. This limits their mode of operation to indirect georeferencing. This paper pre-sents the development of a low cost MAV with navigation-sensor payload that shall assure a position and attitude control with accuracy from which either direct or integrated sensor orientation can benefit. After describing the hardware configuration and the synchronization of all measurements we present a case study that evaluates the performance of the positioning component and its application on integrated sensor orientation without ground control. There we show that thanks to the implementation of a multi-frequency, low power GNSS receiver, the system can potentially attain the mapping characteristics of much larger platforms flown on man-operated carriers while keeping the sensor size and weight suitable for MAV operations. The attitude accuracy of the developed board hosting several MEMS-IMUs is evaluated dynamically on a terrestrial vehicle using a reference (navigation grade) INS. Although this method offers continuous evaluation of the orientation accuracy and the obtained results are satisfactory with respect to the foreseen operations, this performance remains to be confirmed in a flight.
{"title":"A Micro Aerial Vehicle with Precise Position and Attitude Sensors","authors":"M. Rehák, R. Mabillard, J. Skaloud","doi":"10.1127/1432-8364/2014/0240","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0240","url":null,"abstract":"This study shows the potential of navigation technologies in the field of position and orientation determination on a micro aerial vehicle (MAV), which weight does not exceed 5 kg. Although the MAV systems feature high flexibility and capability of flying into areas that are inhospitable or inaccessible to humans, the lack of precision in positioning and attitude estimation on-board decreases the gained value of the captured imagery. This limits their mode of operation to indirect georeferencing. This paper pre-sents the development of a low cost MAV with navigation-sensor payload that shall assure a position and attitude control with accuracy from which either direct or integrated sensor orientation can benefit. After describing the hardware configuration and the synchronization of all measurements we present a case study that evaluates the performance of the positioning component and its application on integrated sensor orientation without ground control. There we show that thanks to the implementation of a multi-frequency, low power GNSS receiver, the system can potentially attain the mapping characteristics of much larger platforms flown on man-operated carriers while keeping the sensor size and weight suitable for MAV operations. The attitude accuracy of the developed board hosting several MEMS-IMUs is evaluated dynamically on a terrestrial vehicle using a reference (navigation grade) INS. Although this method offers continuous evaluation of the orientation accuracy and the obtained results are satisfactory with respect to the foreseen operations, this performance remains to be confirmed in a flight.","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"63 1","pages":"239-251"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88294663","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}
Pub Date : 2014-08-01DOI: 10.1127/1432-8364/2014/0217
Axel Büttner, H. Röser
(HABOUDANE et al. 2008), while the geometric resolution can be used for the creation of rectified image strips. In the last decades, hyperspectral remote sensing was mainly performed with airborne sensors such as AVIRIS or HyMap, which are employed on manned aircraft (GREEN et al. 1998, COCKS et al. 1998). The development of compact and lightweight imaging spectrometers in the last few years offers the possibility to integrate such instruments in small unmanned aerial systems (UAS) and closes the gap between time-con
(HABOUDANE et al. 2008)，而几何分辨率可用于创建校正图像条。在过去的几十年里，高光谱遥感主要是用机载传感器进行的，如AVIRIS或HyMap，这些传感器用于载人飞机(GREEN等，1998年，COCKS等，1998年)。在过去的几年里，紧凑和轻量化成像光谱仪的发展提供了将这些仪器集成到小型无人机系统(UAS)中的可能性，并缩小了时间控制之间的差距
{"title":"Hyperspectral Remote Sensing with the UAS “Stuttgarter Adler” – System Setup, Calibration and First Results","authors":"Axel Büttner, H. Röser","doi":"10.1127/1432-8364/2014/0217","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0217","url":null,"abstract":"(HABOUDANE et al. 2008), while the geometric resolution can be used for the creation of rectified image strips. In the last decades, hyperspectral remote sensing was mainly performed with airborne sensors such as AVIRIS or HyMap, which are employed on manned aircraft (GREEN et al. 1998, COCKS et al. 1998). The development of compact and lightweight imaging spectrometers in the last few years offers the possibility to integrate such instruments in small unmanned aerial systems (UAS) and closes the gap between time-con","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"55 1","pages":"265-274"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86560553","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}
Pub Date : 2014-08-01DOI: 10.1127/1432-8364/2014/0239
C. Eling, L. Klingbeil, M. Wieland, H. Kuhlmann
{"title":"Direct Georeferencing of Micro Aerial Vehicles - System Design, System Calibration and First Evaluation Tests","authors":"C. Eling, L. Klingbeil, M. Wieland, H. Kuhlmann","doi":"10.1127/1432-8364/2014/0239","DOIUrl":"https://doi.org/10.1127/1432-8364/2014/0239","url":null,"abstract":"","PeriodicalId":56096,"journal":{"name":"Photogrammetrie Fernerkundung Geoinformation","volume":"341 1","pages":"227-237"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77816679","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}
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