Fusing electro-optic and infrared signals for high resolution night images

Xiaopeng Huang; Ravi Netravali; Hong Man; Victor Lawrence

doi:10.1117/12.920032

2 February 2012 Fusing electro-optic and infrared signals for high resolution night images

Xiaopeng Huang, Ravi Netravali, Hong Man, Victor Lawrence

Proceedings Volume 8295, Image Processing: Algorithms and Systems X; and Parallel Processing for Imaging Applications II; 82951O (2012) https://doi.org/10.1117/12.920032
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Electro-optic (EO) images exhibit the properties of high resolution and low noise level, while it is a challenge to distinguish objects at night through infrared (IR) images, especially for objects with a similar temperature. Therefore, we will propose a novel framework of IR image enhancement based on the information (e.g., edge) from EO images, which will result in high resolution IR images and help us distinguish objects at night. Superimposing the detected edge of the EO image onto the corresponding transformed IR image is our principal idea for the proposed framework. In this framework, we will adopt the theoretical point spread function (PSF) proposed by Russell C. Hardie et al. for our IR image system, which is contributed by the modulation transfer function (MTF) of a uniform detector array and the incoherent optical transfer function (OTF) of diffraction-limited optics. In addition, we will design an inverse filter in terms of the proposed PSF to conduct the IR image transformation. The framework requires four main steps, which are inverse filter-based IR image transformation, EO image edge detection, registration and superimposing of the obtained image pair. Simulation results will show the superimposed IR images.

Citation Download Citation

Xiaopeng Huang, Ravi Netravali, Hong Man, and Victor Lawrence "Fusing electro-optic and infrared signals for high resolution night images", Proc. SPIE 8295, Image Processing: Algorithms and Systems X; and Parallel Processing for Imaging Applications II, 82951O (2 February 2012); https://doi.org/10.1117/12.920032

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