Experiences in Calibrating Small Format Cameras

Burnside, C. D.; Marshall, Hans Peter

doi:10.1111/j.1477-9730.1992.tb00257.x

Cited by 5 publications

(1 citation statement)

References 1 publication

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“…Lens distortion coefficients must also be obtained in order to minimize their influence on the final cartographic products (Henry et al. , Fryer , Burnside and Marshall ).…”

Section: Methodsmentioning

confidence: 99%

Low Altitude Aerial Photography Applications for Digital Surface Models Creation in Archaeology

Martínez-del-Pozo

Cerrillo‐Cuenca

Salas‐Tovar

2012

Transactions in GIS

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Low Altitude Aerial Photography (LAAP) is based on the use of small flying platforms to take photographs from very low altitudes. The acquisition of series of Digital Surface Models (DSMs) and orthoimages through photogrammetric and orthorectification processes is one of the main applications. The use of this technique in archaeological sites provides very precise and valuable data, but knowing the reliability of the method is a key to ensuring that the results are valid, since the repeatability of the method is fundamental to multitemporal studies. The present work shows an analysis of the similarity of DSMs obtained from different stereoscopic pairs from the same area. The reliability of the models has been assessed by calculating the Standard Deviation (STD) of the altitude values from the models, to obtain maps displaying the differences among them. Finally, the STD values' spatial distribution has been studied to assess if spatial autocorrelation exists by means of the Moran's Index and Anselin's Local Moran's Index. Results showed good similarity among the models and revealed clearly those areas where the model must be edited.

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“…Lens distortion coefficients must also be obtained in order to minimize their influence on the final cartographic products (Henry et al. , Fryer , Burnside and Marshall ).…”

Section: Methodsmentioning

confidence: 99%

Low Altitude Aerial Photography Applications for Digital Surface Models Creation in Archaeology

Martínez-del-Pozo

Cerrillo‐Cuenca

Salas‐Tovar

2012

Transactions in GIS

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The use of small‐format and low‐altitude aerial photos for the realization of high‐resolution DEMs in mountainous areas: application to the Super‐Sauze earthflow (Alpes‐de‐Haute‐Provence, France)

Henry¹,

Malet

Maquaire

et al. 2002

Earth Surf Processes Landf

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Geomorphologists have to make choices and compromises, as acquisition techniques of geometrical information are numerous, depending on the specific complexity of the targeted three-dimensional objects and the requirements of the end user. This article presents the methodology and the results over a well known and documented site. This ready-to-use, low-altitude, aerial photo methodology reveals itself to be a satisfying compromise between cost, accuracy and difficulty of implementation. The selected equipment package is light enough to enable a quick reaction to unexpected events and the tools and methods are competitive with field acquisition techniques. An evaluation has demonstrated a sub-metric accuracy for the final result.

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Henry Vii's Chapel at Westminster Abbey: Photogrammetric Recording and Survey Control

Blank¹,

Allan²

1998

Survey Review

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Experiences in Calibrating Small Format Cameras

Cited by 5 publications

References 1 publication

Low Altitude Aerial Photography Applications for Digital Surface Models Creation in Archaeology

Low Altitude Aerial Photography Applications for Digital Surface Models Creation in Archaeology

The use of small‐format and low‐altitude aerial photos for the realization of high‐resolution DEMs in mountainous areas: application to the Super‐Sauze earthflow (Alpes‐de‐Haute‐Provence, France)

Henry Vii's Chapel at Westminster Abbey: Photogrammetric Recording and Survey Control

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