Infrared and visible light information fusion navigation method based on bionic vision

Abstract

The invention provides an infrared and visible light information fusion navigation method based on bionic vision. The method at least comprises the following steps: (1) image enhancement preprocessing: processing a visible light gray scale gradient problem and a noise problem of an infrared image in an acquired image by adopting a Gauss-Laplace operator; (2) image registration, wherein the main purpose of image registration is to remove or suppress inconsistency of geometric space between an image to be registered and a reference image; (3) image fusion: simulating an ON confrontation system by using a Gaussian function to obtain an enhanced image, simulating the confrontation system by using a logarithmic function to obtain a suppressed signal image, then forming a pseudo-color image, andperforming color distortion correction; and (4) visual navigation. The navigation method has the excellent characteristics of strong anti-interference performance, good imaging capability and high resolution, and meanwhile, the image registration algorithm based on the salient region is adopted, so that the registration real-time performance is high, and the navigation algorithm is high in speed.

Description

technical field [0001] The present invention relates to the field of navigation technology, in particular to a bionic vision principle that fuses infrared and visible light video image information and performs navigation based on the fused image information. The fusion registration adopts a salient region image registration algorithm, thereby having A navigation method with strong anti-interference, good imaging capability, high resolution and high real-time registration. Background technique [0002] Aircraft navigation based on visual information uses visible light or infrared information, which has better anti-interference performance than radio and GPS signals; compared with inertial navigation systems, there is no accumulation of navigation errors over time. However, although visible light imaging in visual navigation has rich details and a keen sense of color, its imaging ability is poor in bad weather or night imaging conditions; while single infrared imaging is clear...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of navigation method for the shortcomings of weak anti-interference or poor imaging ability or low resolution or slow speed of composite visual navigation algorithm in existing navigation methods. A navigation method based on the fusion of infrared and visible light information based on bionic vision. Based on the principle of bionic vision, the navigation method fuses infrared and visible light video image information and performs navigation based on the fused image information, so that it can have strong anti-interference and imaging capabilities. Excellent characteristics of good quality and high resolution. At the same time, in the infrared and visible light fusion registration, the image registration algorithm based on the salient area is adopted, and the registration real-time performance is high, making the navigation algorithm fast

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