Aircraft MSS data registration and vegetation classification for wetland change detection
作者:
E. J. CHRISTENSEN,
J. R. JENSEN,
E. W. RAMSEY,
H. E. MACKEY,,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1988)
卷期:
Volume 9,
issue 1
页码: 23-38
ISSN:0143-1161
年代: 1988
DOI:10.1080/01431168808954834
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Portions of the Savannah River floodplain swamp were evaluated for vegetation change using high resolution (5·6 m) aircraft multispectral scanner (MSS) data. Image distortion from aircraft movement prevented precise image-to-image registration in some areas. However, when small scenes were used (200–250 ha), a first-order linear transformation provided registration accuracies of less than or equal to one pixel. A larger area was registered using a piecewise linear method. Five major wetland classes were identified and evaluated for change. Phenological differences and the variable distribution of vegetation limited wetland type discrimination. Using unsupervised methods and ground-collected vegetation data, overall classification accuracies ranged from 84 per cent to 87 per cent for each scene. Results suggest that high-resolution aircraft MSS data can be precisely registered, if small areas are used, and that wetland vegetation change can be accurately detected and monitored.
点击下载:
PDF (546KB)
返 回