Regularization techniques and parameter estimation for object detection in hyperspectral data

Mabel D. Ramirez-Velez; Luis O. Jimenez-Rodriguez

doi:10.1117/12.486371

23 September 2003 Regularization techniques and parameter estimation for object detection in hyperspectral data

Mabel D. Ramirez-Velez, Luis O. Jimenez-Rodriguez

Proceedings Volume 5093, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery IX; (2003) https://doi.org/10.1117/12.486371
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

The main challenge for the retrieval of information using hyperspectral sensors is that due to the high dimensionality provided by them there is not comparably enough a priori data to produce well-estimated parameters to solve our detection problem. This lack of enough a priori information for an estimation yields to a rank-deficient problem. As a consequence, this leads to an increment in false alarms and increase in the probability of missing throughout the classification process. An approach based on a regularization technique applied to the data collected from the hyperspectral sensor is used to simultaneously minimize the probabilities of false alarms and missing. This procedure is implemented using algorithms that apply regularization techniques by biasing the covariance matrix, which enable the simultaneous reduction of the probability of false alarm and the decrease of the probability of missing; thus, enhancing the Maximum Likelihood parameter estimation.

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Mabel D. Ramirez-Velez and Luis O. Jimenez-Rodriguez "Regularization techniques and parameter estimation for object detection in hyperspectral data", Proc. SPIE 5093, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery IX, (23 September 2003); https://doi.org/10.1117/12.486371

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KEYWORDS

Statistical analysis

Sensors

Error analysis

Visualization

Hyperspectral imaging

Image classification

Nickel

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