You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
2 May 2012Robust automatic target recognition in FLIR imagery
In this paper, a robust automatic target recognition algorithm in FLIR imagery is proposed. Target is first segmented out
from the background using wavelet transform. Segmentation process is accomplished by parametric Gabor wavelet
transformation. Invariant features that belong to the target, which is segmented out from the background, are then
extracted via moments. Higher-order moments, while providing better quality for identifying the image, are more
sensitive to noise. A trade-off study is then performed on a few moments that provide effective performance. Bayes
method is used for classification, using Mahalanobis distance as the Bayes' classifier. Results are assessed based on false
alarm rates. The proposed method is shown to be robust against rotations, translations and scale effects. Moreover, it is
shown to effectively perform under low-contrast objects in FLIR images. Performance comparisons are also performed
on both GPU and CPU. Results indicate that GPU has superior performance over CPU.