Title :
Texture-based segmentation of satellite weather imagery
Author :
Lakshmanan, V. ; DeBrunner, V. ; Rabin, R.
Abstract :
Unsupervised segmentation of weather images into features that correspond to physical storms is a fundamental and difficult problem. Treating an infrared satellite image as a Markov random field, the Kolmogorov-Smirnov distance between the local distribution of spatial statistics and the global statistics of classified regions is used to segment the image using a relaxation algorithm. An outlier class is utilized to capture as yet unclassified pixels. We demonstrate the results of different initialization methods on the final segmentation and point out where the method is deficient.
Keywords :
Markov processes; geophysical signal processing; image segmentation; image texture; infrared imaging; remote sensing; storms; Kolmogorov-Smirnov distance; Markov random field; classified regions; global statistics; infrared satellite image; initialization methods; outlier class; relaxation algorithm; satellite weather imagery; spatial statistics; storms; texture-based segmentation; unclassified pixels; unsupervised segmentation; Image segmentation; Infrared imaging; Laboratories; Markov random fields; Meteorology; Pixel; Satellites; Shape measurement; Statistical distributions; Storms;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.899813