Resolution enhancement of aerial image based on higher order cumulant wavelet transformation

Liu Gang; Rong-hui Wang; Shu-hong Jia

doi:10.1117/12.2032709

21 August 2013 Resolution enhancement of aerial image based on higher order cumulant wavelet transformation

Liu Gang, Rong-hui Wang, Shu-hong Jia

Proceedings Volume 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications; 89080P (2013) https://doi.org/10.1117/12.2032709
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

Making use the prior knowledge that higher order cumulant and wavlet transformation methods are combined, which is used in the multi-dim-small target detection with the Gaussian noise and natural background. In this paper, a method of magnifying image based on two dimension discrete wavelet is introduced. Comparing with traditional interpolation methods, it not only enhanced resolution of the aero-image, but maintained the detail character of the image. Experiment results have shown that it is good method for enhancing aero-image. The same aerial image is magnified with above-mentioned wavelet-based algorithms, conventional bilinear interpolation and tri-spline sampling interpolation algorithm separately. The values of mean gradient on three graphs are calculated using three approach, they are 6.31, 7.43 and 8.45. In accordance with the result, the value of the magnified image by this method is largest.

Citation Download Citation

Liu Gang, Rong-hui Wang, and Shu-hong Jia "Resolution enhancement of aerial image based on higher order cumulant wavelet transformation", Proc. SPIE 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications, 89080P (21 August 2013); https://doi.org/10.1117/12.2032709

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