A wavelet-based adaptive fusion algorithm of infrared polarization imaging

Wei Yang; Guohua Gu; Qian Chen; Haifang Zeng

doi:10.1117/12.900285

8 September 2011 A wavelet-based adaptive fusion algorithm of infrared polarization imaging

Wei Yang, Guohua Gu, Qian Chen, Haifang Zeng

Proceedings Volume 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications; 819324 (2011) https://doi.org/10.1117/12.900285
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

The purpose of infrared polarization image is to highlight man-made target from a complex natural background. For the infrared polarization images can significantly distinguish target from background with different features, this paper presents a wavelet-based infrared polarization image fusion algorithm. The method is mainly for image processing of high-frequency signal portion, as for the low frequency signal, the original weighted average method has been applied. High-frequency part is processed as follows: first, the source image of the high frequency information has been extracted by way of wavelet transform, then signal strength of 3*3 window area has been calculated, making the regional signal intensity ration of source image as a matching measurement. Extraction method and decision mode of the details are determined by the decision making module. Image fusion effect is closely related to the setting threshold of decision making module. Compared to the commonly used experiment way, quadratic interpolation optimization algorithm is proposed in this paper to obtain threshold. Set the endpoints and midpoint of the threshold searching interval as initial interpolation nodes, and compute the minimum quadratic interpolation function. The best threshold can be obtained by comparing the minimum quadratic interpolation function. A series of image quality evaluation results show this method has got improvement in fusion effect; moreover, it is not only effective for some individual image, but also for a large number of images.

Citation Download Citation

Wei Yang, Guohua Gu, Qian Chen, and Haifang Zeng "A wavelet-based adaptive fusion algorithm of infrared polarization imaging", Proc. SPIE 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, 819324 (8 September 2011); https://doi.org/10.1117/12.900285

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