Systems and methods for fusing infrared image and visible light image

An image fusion method, comprising:

• obtaining a visible light image and an infrared image relating to a same scene;
• performing a first decomposition to the visible light image to obtain a first high-frequency component of the visible light image and a first low-frequency component of the visible light image;
• performing a first decomposition to the infrared image to obtain a first high-frequency component of the infrared image and a first low-frequency component of the infrared image;
• fusing the first high-frequency component of the visible light image and the first high-frequency component of the infrared image based on a first algorithm to generate a first fused high-frequency component;
• and
• performing reconstruction based on the first fused high-frequency component, the first low-frequency component of the visible light image, and the first low-frequency component of the infrared image to generate a fused image.

A non-transitory computer readable medium storing instructions, the instructions, when executed by a computing device, causing the computing device to implement a method, comprising:

• obtaining a visible light image and an infrared image relating to a same scene;
• performing a first decomposition to the visible light image to obtain a first high-frequency component of the visible light image and a first low-frequency component of the visible light image;
• performing a first decomposition to the infrared image to obtain a first high-frequency component of the infrared image and a first low-frequency component of the infrared image;
• fusing the first high-frequency component of the visible light image and the first high-frequency component of the infrared image based on a first algorithm to generate a first fused high-frequency component;
• and
• performing reconstruction based on the first fused high-frequency component, the first low-frequency component of the visible light image, and the first low-frequency component of the infrared image to generate a fused image.