Title :
Supervised fuzzy analysis of single- and multichannel SAR data
Author_Institution :
DLR, Deutsches Zentrum, Oberpfaffenhofen, Germany
fDate :
3/1/1999 12:00:00 AM
Abstract :
The paper proposes a new learning fuzzy classification for single and multichannel synthetic aperture radar (SAR) data. It consists of the fusion of a supervised learning fuzzy distribution estimator and an unsupervised learning fuzzy vector quantizer. The adaptive algorithm accommodates varying requirements and delivers classification results in near real time. In addition to the classification, the user gets the reliability of the classification. This knowledge can be used to fuse several sensor channels efficiently. Automatically, a rule base is developed to deliver the required information with the highest possible reliability. In the author´s example, the channels of a full polarimetric SAR are used. However, the algorithm can be extended also to optic and infrared channels. The proposed fuzzy classification system forms one module of an adaptive remote-sensing system. A conceptual design of this system is given. System control relies on an expert knowledge base and allows automatic configuration of the system to the considered remote-sensing application. This will lead to an increased usefulness of remotely sensed data
Keywords :
adaptive signal processing; geophysical signal processing; geophysical techniques; image classification; radar imaging; remote sensing by radar; synthetic aperture radar; terrain mapping; adaptive algorithm; expert knowledge; geophysical measurement technique; image analysis; image classification; land surface; learning fuzzy classification; multichannel SAR; radar imaging; radar polarimetry; radar remote sensing; single channel SAR; supervised fuzzy analysis; supervised learning fuzzy distribution estimator; synthetic aperture radar; terrain mapping; unsupervised learning fuzzy vector quantizer; Adaptive algorithm; Adaptive optics; Fuses; Fuzzy systems; Optical sensors; Remote sensing; Sensor fusion; Supervised learning; Synthetic aperture radar; Unsupervised learning;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on