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BRDF and its impact on aerial archaeological photography

Geert Verhoeven (UGent)
(2017) ARCHAEOLOGICAL PROSPECTION . 24(2). p.133-140
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Abstract
Despite the arguments in favour of oblique photographs acquired during observer-directed reconnaissance sorties, many aerial archaeologists have extracted much valuable information from verticals generated during total coverage mapping surveys. This paper looks at one of these arguments: the issue of anisotropic surface reflectance, which is responsible for the allegedly superior rendering of (mainly) vegetation and shadow marks when observed from certain oblique viewpoints. However, after a theoretical and practical assessment of the Bidirectional Reflectance Distribution Function (BRDF) of vegetation, it becomes clear that nadir views provide a more than satisfying alternative to the extremes of an oblique approach.
Keywords
Aerial archaeology, Aerial photography, Airborne remote sensing, BRDF (Bidirectional Reflectance Distribution Function), Oblique aerial photography, Remote sensing, Vertical photography

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Citation

Please use this url to cite or link to this publication:

Chicago
Verhoeven, Geert. 2017. “BRDF and Its Impact on Aerial Archaeological Photography.” Archaeological Prospection  24 (2): 133–140.
APA
Verhoeven, G. (2017). BRDF and its impact on aerial archaeological photography. ARCHAEOLOGICAL PROSPECTION  , 24(2), 133–140.
Vancouver
1.
Verhoeven G. BRDF and its impact on aerial archaeological photography. ARCHAEOLOGICAL PROSPECTION  . Wiley-Blackwell; 2017;24(2):133–40.
MLA
Verhoeven, Geert. “BRDF and Its Impact on Aerial Archaeological Photography.” ARCHAEOLOGICAL PROSPECTION  24.2 (2017): 133–140. Print.
@article{8525303,
  abstract     = {Despite the arguments in favour of oblique photographs acquired during observer-directed reconnaissance sorties, many aerial archaeologists have extracted much valuable information from verticals generated during total coverage mapping surveys. This paper looks at one of these arguments: the issue of anisotropic surface reflectance, which is responsible for the allegedly superior rendering of (mainly) vegetation and shadow marks when observed from certain oblique viewpoints. However, after a theoretical and practical assessment of the Bidirectional Reflectance Distribution Function (BRDF) of vegetation, it becomes clear that nadir views provide a more than satisfying alternative to the extremes of an oblique approach.},
  author       = {Verhoeven, Geert},
  issn         = {1075-2196},
  journal      = {ARCHAEOLOGICAL PROSPECTION                            },
  keyword      = {Aerial archaeology,Aerial photography,Airborne remote sensing,BRDF (Bidirectional Reflectance Distribution Function),Oblique aerial photography,Remote sensing,Vertical photography},
  language     = {eng},
  number       = {2},
  pages        = {133--140},
  publisher    = {Wiley-Blackwell},
  title        = {BRDF and its impact on aerial archaeological photography},
  url          = {http://dx.doi.org/10.1002/arp.1559},
  volume       = {24},
  year         = {2017},
}

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