Paper Info
Title
The characterization of a DIRSIG simulation environment to support the inter-calibration of spaceborne sensors.
Abstract
Climate change studies require long-term, continuous records that extend beyond the lifetime, and the temporal resolution, of a single remote sensing satellite sensor. The inter-calibration of spaceborne sensors is therefore desired to provide spatially, spectrally, and temporally homogeneous datasets. The Digital Imaging and Remote Sensing Image Generation (DIRSIG) tool is a first principle-based synthetic image generation model that has the potential to characterize the parameters that impact the accuracy of the inter-calibration of spaceborne sensors. To demonstrate the potential utility of the model, we compare the radiance observed in real image data to the radiance observed in simulated image from DIRSIG. In the present work, a synthetic landscape of the Algodones Sand Dunes System is created. The terrain is facetized using a 2-meter digital elevation model generated from NASA Goddard's LiDAR, Hyperspectral, and Thermal (G-LiHT) imager. The material spectra are assigned using hyperspectral measurements of sand collected from the Algodones Sand Dunes System. Lastly, the bidirectional reflectance distribution function (BRDF) properties are assigned to the modeled terrain using the Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF product in conjunction with DIRSIG's Ross-Li capability. The results of this work indicate that DIRSIG is in good agreement with real image data. The potential sources of residual error are identified and the possibilities for future work are discussed.
Year
DOI
Venue
2016
10.1117/12.2238317
Proceedings of SPIE
Keywords
Field
DocType
Calibration,Cross-calibration,Earth Observing (EO) System,Digital Image and Remote Sensing Image Generation (DIRSIG),Inter-calibration
Bidirectional reflectance distribution function,Remote sensing,Digital elevation model,Lidar,Artificial intelligence,Computer vision,Moderate-resolution imaging spectroradiometer,Optics,Hyperspectral imaging,Digital imaging,Real image,Radiance,Physics
Conference
Volume
ISSN
Citations 
9972
0277-786X
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Brittany L. Ambeau100.34
Aaron Gerace23910.43
Matt Montanaro37324.50
Joel McCorkel4157.86