Automated thresholding of active lavas using AVHRR data
作者:
A.J.L. HARRIS,
S.E.J. SWABEY,
J. HIGGINS,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1995)
卷期:
Volume 16,
issue 18
页码: 3681-3686
ISSN:0143-1161
年代: 1995
DOI:10.1080/01431169508954654
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An automated algorithm for thresholding hot pixels in AVHRR data is presented. The algorithm, applied to cloud-free sub-images of channel 3 minus channel 4 brightness temperature, compares each target pixel with its immediate background and then compares this difference with the natural variation in the surrounding region. Application to images of Mount Etna identified thermally anomalous pixels containing active lava or vents.
点击下载:
PDF (190KB)
返 回