Method for fusing night-viewing twilight image and infrared image

An infrared image and low-light image technology, applied in the field of image processing, can solve problems such as inability to apply night vision low-light images, no image enhancement target segmentation and fusion real-time fusion system, and inability to meet real-time performance.

Inactive Publication Date: 2010-10-06
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

However, this method does not involve image enhancement and target segmentation, and cannot meet real-time performance and cannot be applied to night vision low-light images.
[0006] In the fusion of night vision low-light images and infrared images, there is no real-time fusion system involving complete image enhancement, target segmentation, fusion and display

Method used

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  • Method for fusing night-viewing twilight image and infrared image
  • Method for fusing night-viewing twilight image and infrared image
  • Method for fusing night-viewing twilight image and infrared image

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Embodiment Construction

[0038] A fusion method of night vision low-light images and infrared images, which is a complete night vision microcomputer that uses the neural dynamics theory of the visual model for image enhancement and image fusion, uses the region growing method for image segmentation, and converts and displays three-channel information. Light image and infrared image fusion method.

[0039] Such as figure 1 As shown, the method includes image enhancement, segmentation, fusion and color mapping, and specifically includes the following steps:

[0040] Step (1) Use the antagonistic characteristic model to enhance the night vision low-light image and infrared image respectively

[0041] Using differential Gaussian functions to simulate the antagonism of concentric circles in the retina of the human eye, the center-peripheral separation network (Center Surround Shunting Network, CSSN) confrontation system for image processing, its dynamic equation is

[0042] dE ...

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Abstract

The invention relates to a method for fusing a night-viewing twilight image and an infrared image. The method comprises the following steps of: enhancing the infrared and twilight images by adopting a center-periphery opponent network in an antagonistic characteristic model, segmenting the enhanced infrared image by using an area growing method, and obtaining target images according to the brightness of each segmented area; adding two fusing operations at a fusing stage, namely fusing the target image information to an enhanced twilight background by using a selection operation to form input of a brightness channel, and fusing the infrared image obtained by adopting the area growing method and the enhanced twilight image by adopting the antagonistic characteristic model to form input of a saturation channel; and meanwhile, directly sending the enhanced twilight image to a toning channel to perform toning as the background of a colored fused image, and finally performing colored remapping and display. The images obtained by the method have good target indicating characteristics and colors more suitable for the observation of human eyes, and are favorable for improving the perception of monitoring personnel on a target scene.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a night vision low-light image and infrared image fusion method combined with an antagonistic visual characteristic model and a region growing method. Background technique [0002] The night vision image fusion technology based on multi-sensor can make full use of the characteristics of existing imaging sensors, and obtain target information more comprehensively through information processing and video processing technology, which has important application value in the fields of security and assisted driving. [0003] Night vision image fusion enhances scene understanding, highlights objects, and facilitates faster and more accurate detection of objects against hidden, camouflaged, and disorienting backgrounds. Displaying the fused image in a simple and natural form suitable for human observation can significantly improve the recognition performance of the human eye and re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/50
Inventor 金学波张巧玲鲍佳杜晶晶张水英包晓敏严国红
Owner ZHEJIANG SCI-TECH UNIV
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