Title :
Segmentation based change detection in ERS-1 SAR images
Author :
Caves, R.G. ; Quegan, S.
Author_Institution :
Centre for Earth Obs. Sci., Sheffield Univ., UK
Abstract :
Segmentation based change detection in ERS-1 images of agricultural and salt playa scenes is discussed. The segmentation algorithm, RWSEG, is briefly described. The authors primarily concentrate on structural rather than radiometric change. Structural change is analysed by overlaying segment boundaries. This reveals a surprising amount of structural similarity in the image sequences. However, this simplistic approach does not allow for boundaries being slightly offset due to speckle and gradual gradients
Keywords :
agriculture; geomorphology; geophysical signal processing; geophysical techniques; hydrological techniques; image segmentation; image sequences; lakes; radar applications; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; ERS-1; RWSEG; SAR imaging; agriculture; algorithm; change detection; geophysical measurement technique; hydrology; image segmentation; image sequences; land surface terrain mapping; radar remote sensing; salt lake; salt playa; spaceborne radar imaging; Buildings; Change detection algorithms; Geoscience; Image edge detection; Image segmentation; Image sequences; Layout; Radiometry; Robustness; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399677
