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Titolo:
ATMOSPHERIC CORRECTION OF SATELLITE DATA WITH HAZE REMOVAL INCLUDING A HAZE CLEAR TRANSITION REGION/
Autore:
RICHTER R;
Indirizzi:
DLR,GERMAN AEROSP RES ESTAB,INST OPTOELECTR D-82234 WESSELING GERMANY
Titolo Testata:
Computers & geosciences
fascicolo: 6, volume: 22, anno: 1996,
pagine: 675 - 681
SICI:
0098-3004(1996)22:6<675:ACOSDW>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
TM;
Keywords:
ATMOSPHERIC CORRECTION; HAZE REMOVAL; LANDSAT TM AND SPOT HRV IMAGERY; ATCOR2 MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
CompuMath Citation Index
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
R. Richter, "ATMOSPHERIC CORRECTION OF SATELLITE DATA WITH HAZE REMOVAL INCLUDING A HAZE CLEAR TRANSITION REGION/", Computers & geosciences, 22(6), 1996, pp. 675-681

Abstract

High spatial resolution satellite imagery such as LANDSAT TM and SPOTHRV may contain large regions covered with haze. By applying suitablethresholds, clear areas as well as haze and cloud regions can be separated and stored as binary images. Cloud areas are identified in the method presented here, but are not included in the haze correction, because ground information cannot be retrieved in optically thick regions. For each spectral band, the haze removal algorithm matches the histogram of the haze areas to the histogram of the clear part of the scene. Because of the binary nature of thresholding, this algorithm may cause sharply defined edges at the borders of haze regions. Therefore, a haze boundary region is introduced to generate a smoother transition from haze to clear areas. Two transition methods with a leveled boundary are presented: with fixed weighting and with histogram-dependent weighting. Additionally, the image is corrected atmospherically to removethe remaining atmospheric influence and obtain ground reflectance data. Copyright (C) 1996 Elsevier Science Ltd

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Documento generato il 05/08/20 alle ore 12:50:59