Aerial Photography by Radio Controlled Model Helicopter

Wester-Ebbinghaus, W.

doi:10.1111/j.1477-9730.1980.tb00006.x

Cited by 26 publications

(8 citation statements)

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“…Moreover, the final cost is generally much higher than the relatively expensive price (Krijnen,2008).Thisfigureisavailableincolouronline at www.interscience.wiley.com/journal/arp of initial purchase, as the ever present risk of crashing can largely destroy the camera and the aircraft itself. Additionally, one needs to make sure that the serious vibrations, induced by both the motor and rotary wings of a helicopter (Belzner, 1962;Cheffins, 1969;Wester-Ebbinghaus, 1980;Walker, 1985) and the airframe vibrations in a model aeroplane (Harding, 1989), are damped. Even if current suspension systems can largely eliminate these vibrations, they still remain a serious issue (Eisenbeiss, 2004).…”

Section: Unmanned Aerial Vehiclesmentioning

confidence: 99%

Providing an archaeological bird's‐eye view – an overall picture of ground‐based means to execute low‐altitude aerial photography (LAAP) in Archaeology

Verhoeven

2009

Archaeological Prospection

132

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Since the beginning of aerial photography, researchers have used all kinds of devices ranging from pigeons, kites, poles and balloons to rockets in order to take cameras aloft and remotely gather aerial data needed for a combination of research goals.To date, many of these unmanned devices are still used, mainly to gather archaeologically relevant information from relatively low altitudes, enabling so-called low-altitude aerial photography (LAAP). Besides providing a concise overview of the unmanned LAAP platforms commonly used in archaeological research, this paper considers the drawbacks and advantages of every device and provides an extensive reference list.

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Section: Unmanned Aerial Vehiclesmentioning

confidence: 99%

Providing an archaeological bird's‐eye view – an overall picture of ground‐based means to execute low‐altitude aerial photography (LAAP) in Archaeology

Verhoeven

2009

Archaeological Prospection

132

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“…Photogrammetry with Unmanned Aerial Systems (UAS) was pioneered by W. Wester-Ebbinghaus in 1980(WesterEbbinghaus, 1980. In recent times, the airborne photogrammetry and remote sensing community has paid considerable attention to the use of UAS, and up to present days, various types of aerial platforms and on-board remote sensors have been investigated and assessed to ultimately determine if UAS are feasible tools for remote sensing and, in case of positive answer, which platforms and on-board sensor sets optimally fits each mission needs.…”

Section: Introductionmentioning

confidence: 99%

Navigation and Remote Sensing Payloads and Methods of the Sarvant Unmanned Aerial System

Molina¹,

Fortuny²,

Colomina³

et al. 2013

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:In a large number of scenarios and missions, the technical, operational and economical advantages of UAS-based photogrammetry and remote sensing over traditional airborne and satellite platforms are apparent. Airborne Synthetic Aperture Radar (SAR) or combined optical/SAR operation in remote areas might be a case of a typical "dull, dirty, dangerous" mission suitable for unmanned operation -in harsh environments such as for example rain forest areas in Brazil, topographic mapping of small to medium sparsely inhabited remote areas with UAS-based photogrammetry and remote sensing seems to be a reasonable paradigm.An example of such a system is the SARVANT platform, a fixed-wing aerial vehicle with a six-meter wingspan and a maximumtake-of-weight of 140 kilograms, able to carry a fifty-kilogram payload. SARVANT includes a multi-band (X and P) interferometric SAR payload, as the P-band enables the topographic mapping of densely tree-covered areas, providing terrain profile information. Moreover, the combination of X-and P-band measurements can be used to extract biomass estimations. Finally, long-term plan entails to incorporate surveying capabilities also at optical bands and deliver real-time imagery to a control station. This paper focuses on the remote-sensing concept in SARVANT, composed by the aforementioned SAR sensor and envisioning a double optical camera configuration to cover the visible and the near-infrared spectrum. The flexibility on the optical payload election, ranging from professional, medium-format cameras to mass-market, small-format cameras, is discussed as a driver in the SARVANT development. The paper also focuses on the navigation and orientation payloads, including the sensors (IMU and GNSS), the measurement acquisition system and the proposed navigation and orientation methods. The latter includes the Fast AT procedure, which performs close to traditional Integrated Sensor Orientation (ISO) and better than Direct Sensor Orientation (DiSO), and features the advantage of not requiring the massive image processing load for the generation of tie points, although it does require some Ground Control Points (GCPs). This technique is further supported by the availability of a high quality INS/GNSS trajectory, motivated by single-pass and repeat-pass SAR interferometry requirements.

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“…Unmanned Aerial Vehicle (UAV) are meanwhile tested and used for several decades and varying applications (Przybilla & Wester-Ebbinghaus, 1979, Wester-Ebbinghaus, 1980, Eisenbeiss, 2009. Concerning military use these systems are established for a long time, but meanwhile also civil utilisation becomes more and more important.…”

Section: Motivationmentioning

confidence: 99%

Investigations on the Accuracy of the Navigation Data of Unmanned Aerial Vehicles Using the Example of the System Mikrokopter

Bäumker

Przybilla

2012

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Commission I, WG I/V KEY WORDS: UAVs, Photogrammetry, Navigation, Sensor Orientation, Flight planning ABSTRACT:Bochum University of Applied Sciences (HS BO) is currently involved in an UAV project, whose fundamental developments are the result of an internet community. The MikroKopter system, being built by the laboratory, is a manually and autonomous flying platform. With regard to the implementation of an autonomous flight the MikroKopter is equipped with appropriate sensors for the flight control. The interaction of these components allows horizontal and vertical stabilized positioning of the system, as well as the return to the launch site. Using these positioning data a stabilization and orientation of the camera occurs, followed by a manual or automatically triggering of the camera to the predetermined positions. All flight data is completely recorded and can be evaluated at a later date.Investigations to the quality of navigation data are presented. Based on different flights at the Bochum test field, combined with the use of alternative navigation sensors, an evaluation of the standard components of the MikroKopter system occurs. Another focus is given by efforts to optimize the control, stabilization and orientation of the camera. KURZFASSUNG:Die Hochschule Bochum (HS BO) beteiligt sich aktuell an einem UAV-Projekt, das in seinen grundlegenden Entwicklungen die Ergebnisse einer Internet-Community darstellt. Mit dem im Labor aufgebauten MikroKopter steht eine leistungsfähige, manuell und autonom fliegende Plattform zur Verfügung. Im Hinblick auf die Durchführung eines autonomen Flugs ist der MikroKopter mit entsprechenden Sensoren für die Flugregelung ausgestattet. Das Zusammenwirken dieser Komponenten ermöglicht eine lage-und höhenstabilisierte Positionierung des Systems, ebenso wie die Rückkehr zum Startplatz. Sämtliche Flugdaten werden vollständig aufgezeichnet und können zu einem späteren Zeitpunkt ausgewertet werden.Im Beitrag werden Ergebnisse zur Qualität der Navigationsdaten des Systems vorgestellt, da diese wesentlichen Einfluss auf die Geometrie photogrammetrischer Bildverbände nehmen. Auf der Grundlage von Testfeldbefliegungen sowie der Nutzung alternativer Navigationssensoren erfolgt eine Bewertung der Standardkomponenten des MikroKopter-Systems.

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Aerial Photography by Radio Controlled Model Helicopter

Cited by 26 publications

References 1 publication

Providing an archaeological bird's‐eye view – an overall picture of ground‐based means to execute low‐altitude aerial photography (LAAP) in Archaeology

Providing an archaeological bird's‐eye view – an overall picture of ground‐based means to execute low‐altitude aerial photography (LAAP) in Archaeology

Navigation and Remote Sensing Payloads and Methods of the Sarvant Unmanned Aerial System

Investigations on the Accuracy of the Navigation Data of Unmanned Aerial Vehicles Using the Example of the System Mikrokopter

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