Title :
Sensitivity analysis of a spatially-adaptive estimator for data fusion
Author :
Slatton, K. Clint ; Crawford, Melba ; Evans, Brian L.
Abstract :
We analyze the parametric sensitivity of a spatially-adaptive multiscale data fusion method. The fusion problem is formulated as a recursive estimation problem in scale and space using a set of 1D Kalman filters. The overall filter accommodates data acquired at different resolutions and missing data. The filter approaches optimal performance for data with spatially-varying statistics by adaptively updating the filter parameters using the innovation-correlation method. The contribution of this paper is the determination of the estimation error sensitivity to the process noise and measurement noise variances
Keywords :
Kalman filters; adaptive estimation; image resolution; recursive estimation; sensor fusion; 1D Kalman filters; estimation error sensitivity; image resolution; innovation correlation method; measurement noise; missing data; multiscale data fusion; parametric sensitivity; process noise; recursive estimation; spatially varying statistics; spatially-adaptive estimation; Adaptive filters; Kalman filters; Laser radar; Noise measurement; Sensitivity analysis; Sensor phenomena and characterization; Spatial resolution; Surfaces; Synthetic aperture radar interferometry; White noise;
Conference_Titel :
Image Analysis and Interpretation, 2002. Proceedings. Fifth IEEE Southwest Symposium on
Conference_Location :
Sante Fe, NM
Print_ISBN :
0-7695-1537-1
DOI :
10.1109/IAI.2002.999892