Name
Title | ||
|---|---|---|
Operational BRDF Effects Correction for Wide-Field-of-View Optical Scanners (BREFCOR) |
Abstract | ||
|---|---|---|
The radiometric correction of airborne imagery aims at providing unbiased spectral information about the Earth's surface. Correction steps include system calibration, geometric correction, and the compensation for atmospheric effects. Such preprocessed data are affected by the bidirectional reflectance distribution function (BRDF), which requires an additional compensation step. We present a novel method for a surface-cover-dependent BRDF effects correction (BREFCOR). It uses a continuous index based on bottom-of-atmosphere reflectances to tune the Ross-Thick Li-Sparse BRDF model. This calibrated model is then used to correct for observation-angle-dependent anisotropy. The method shows its benefits specifically for wide-field-of-view airborne systems where BRDF effects strongly affect image quality. Evaluation results are shown for sample data from a multispectral photogrammetric Leica ADS camera system and for HYSPEX imaging spectroscopy data. The scalability of the procedure for various kinds of sensor configurations allows for its operational use as part of standard processing systems. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TGRS.2014.2349946 | Geoscience and Remote Sensing, IEEE Transactions |
Keywords | Field | DocType |
calibration,geophysical techniques,optical scanners,radiometry,brefcor,earth surface unbiased spectral information,hyspex imaging spectroscopy data,ross-thick li-sparse brdf model,airborne imagery radiometric correction,atmospheric effect compensation,bidirectional reflectance distribution function,bottom-of-atmosphere reflectance,calibrated model,continuous index,geometric correction,image quality,multispectral photogrammetric leica ads camera system,observation-angle-dependent anisotropy correction,operational brdf effect correction step,preprocessed data,procedure scalability,sensor configuration kind,standard processing system,surface-cover-dependent brdf effect correction,system calibration,wide-field-of-view airborne system,wide-field-of-view optical scanner,data preprocessing,geophysical image processing,hyperspectral imaging,software packages,kernel,data models,atmospheric modeling,indexes,anisotropic magnetoresistance | Bidirectional reflectance distribution function,Field of view,Computer vision,Photogrammetry,Data modeling,Anisotropy,Remote sensing,Multispectral image,Image quality,Artificial intelligence,Mathematics,Calibration | Journal |
Volume | Issue | ISSN |
53 | 4 | 0196-2892 |
Citations | PageRank | References |
10 | 0.76 | 8 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Daniel Schläpfer | 1 | 67 | 12.06 |
| Rudolf Richter | 2 | 10 | 1.10 |
| Feingersh, T. | 3 | 10 | 0.76 |