Sensor modelling and camera calibration for close-range photogrammetry

Lühmann, Thomas; Fraser, Clive S.; Maas, Hans‐Gerd

doi:10.1016/j.isprsjprs.2015.10.006

Cited by 214 publications

(186 citation statements)

References 15 publications

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“…Remondino & Fraser (2006) and Luhmann et al (2015) summarize the requirements on reliable and stable self-calibration procedures. Calibration procedures using planar testfields have to be handled carefully.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Quality of Action Cameras With Wide-Angle Lenses in Uav Photogrammetry

Hastedt¹,

Ekkel²,

Lühmann³

2016

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

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ABSTRACT:The application of light-weight cameras in UAV photogrammetry is required due to restrictions in payload. In general, consumer cameras with normal lens type are applied to a UAV system. The availability of action cameras, like the GoPro Hero4 Black, including a wide-angle lens (fish-eye lens) offers new perspectives in UAV projects. With these investigations, different calibration procedures for fish-eye lenses are evaluated in order to quantify their accuracy potential in UAV photogrammetry. Herewith the GoPro Hero4 is evaluated using different acquisition modes. It is investigated to which extent the standard calibration approaches in OpenCV or Agisoft PhotoScan/Lens can be applied to the evaluation processes in UAV photogrammetry. Therefore different calibration setups and processing procedures are assessed and discussed. Additionally a pre-correction of the initial distortion by GoPro Studio and its application to the photogrammetric purposes will be evaluated. An experimental setup with a set of control points and a prospective flight scenario is chosen to evaluate the processing results using Agisoft PhotoScan. Herewith it is analysed to which extent a pre-calibration and pre-correction of a GoPro Hero4 will reinforce the reliability and accuracy of a flight scenario.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Quality of Action Cameras With Wide-Angle Lenses in Uav Photogrammetry

Hastedt¹,

Ekkel²,

Lühmann³

2016

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

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show abstract

“…The most important of these rules include the use of a multi-station network with strong geometric convergence, variations to the roll-angle of the camera, a constant lens focus, and the existence of scale variations on the image (Luhmann et al, 2016;Remondino, 2014;Remondino and Fraser, 2006). It should also be noted that different software packages define interior parameters in a different way.…”

Section: Geometric Sensor Calibrationmentioning

confidence: 99%

Close Range Uav Accurate Recording and Modeling Of St-Pierre-Le-Jeune Neo-Romanesque Church in Strasbourg (France)

Murtiyoso

Grussenmeyer

Fréville³

2017

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

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ABSTRACT:Close-range photogrammetry is an image-based technique which has often been used for the 3D documentation of heritage objects. Recently, advances in the field of image processing and UAVs (Unmanned Aerial Vehicles) have resulted in a renewed interest in this technique. However, commercially ready-to-use UAVs are often equipped with smaller sensors in order to minimize payload and the quality of the documentation is still an issue. In this research, two commercial UAVs (the Sensefly Albris and DJI Phantom 3 Professional) were setup to record the 19 th century St-Pierre-le-Jeune church in Strasbourg, France. Several software solutions (commercial and open source) were used to compare both UAVs' images in terms of calibration, accuracy of external orientation, as well as dense matching. Results show some instability in regards to the calibration of Phantom 3, while the Albris had issues regarding its aerotriangulation results. Despite these shortcomings, both UAVs succeeded in producing dense point clouds of up to a few centimeters in accuracy, which is largely sufficient for the purposes of a city 3D GIS (Geographical Information System). The acquisition of close range images using UAVs also provides greater LoD flexibility in processing. These advantages over other methods such as the TLS (Terrestrial Laser Scanning) or terrestrial close range photogrammetry can be exploited in order for these techniques to complement each other.

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“…According to the SfM approach, the camera calibration process is not considered a particularly important task, and the camera parameters are almost always calculated as part of the orientation process [32]. This approach was developed mainly with the aim of achieving maximum process automation and not the best accuracy, as is the case with photogrammetry.…”

Section: Camera Calibrationmentioning

confidence: 99%

Vision metrology and Structure from Motion for archaeological heritage 3D reconstruction: a Case Study of various Roman mosaics

Brutto

Dardanelli

2017

ACTA IMEKO

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Vision metrology and computer vision can be successfully used for archaeological heritage 3D reconstruction in very high precision 3D measurement projects. Of those archaeological objects requiring very accurate measurements (<1 mm), ancient mosaics comprise some of the most important. The aim of this paper is to assess the photogrammetric/computer vision approach in a vision metrology context as part of a 3D mosaics survey. In order to evaluate the optimal photogrammetric/computer vision workflow in this work, three different surveys were performed on three mosaics of different sizes and locations. Two of these are stored at the Antonino Salinas Regional Archaeological Museum in Palermo (Italy) and the other is located at the Baglio Anselmi Regional Archaeological Museum in Marsala (Italy). The mosaics survey was undertaken in order to obtain a very detailed 3D model and a full-scale ortho-image (scale 1:1), which would be useful for documentation and restoration processes. The research involved an evaluation of the potential and the related issues of the photogrammetric/computer vision approach for 3D mosaic documentation, particularly regarding the issue of camera calibration.

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Sensor modelling and camera calibration for close-range photogrammetry

Cited by 214 publications

References 15 publications

Evaluation of the Quality of Action Cameras With Wide-Angle Lenses in Uav Photogrammetry

Evaluation of the Quality of Action Cameras With Wide-Angle Lenses in Uav Photogrammetry

Close Range Uav Accurate Recording and Modeling Of St-Pierre-Le-Jeune Neo-Romanesque Church in Strasbourg (France)

Vision metrology and Structure from Motion for archaeological heritage 3D reconstruction: a Case Study of various Roman mosaics

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