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System and method of fusion of infrared-radiation (IR) image and low-light-level (LLL) color image

An infrared image and color image technology, which is applied in the image field, can solve the problems of the system and method that cannot provide infrared image and low-light color image fusion.

Inactive Publication Date: 2018-06-08
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a fusion method and method of an infrared image and a low-light color image, aiming at solving the problem that the prior art cannot provide an infrared image and micro System and method for optical color image fusion

Method used

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  • System and method of fusion of infrared-radiation (IR) image and low-light-level (LLL) color image
  • System and method of fusion of infrared-radiation (IR) image and low-light-level (LLL) color image
  • System and method of fusion of infrared-radiation (IR) image and low-light-level (LLL) color image

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Embodiment 1

[0039] figure 1 The method 10 for fusing infrared images and low-light color images provided by Embodiment 1 of the present invention is shown. For the convenience of illustration, only the parts related to the embodiment of the present invention are shown, including: side suppression enhancement module 110, preprocessing Module 120 , weighted sum module 130 , central excitation-surround inhibition ON module 140 , central inhibition-surround excitation OFF module 150 and fusion module 160 .

[0040] The side suppression enhancement module 110 is configured to perform side suppression enhancement processing on infrared images (Infrared Radiation, IR) to obtain IR images, and perform side suppression enhancement processing on low light level images (Low light level, LLL) to obtain LLL images.

[0041] In the embodiment provided by the present invention, the side suppression enhancement module adopts a two-dimensional side suppression model, and its mathematical model is:

[004...

Embodiment 2

[0076] figure 2 It shows a schematic diagram of the realization of the method for fusing infrared images and low-light color images provided by Embodiment 2 of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0077] Among them: LLL (Low light level) is expressed as low-light image; IR (Infrared Radiation) is expressed as infrared image; LTE (Lateral inhibition Enhancement) is expressed as side suppression enhancement; T (target)

[0078] represented as the target image; Expressed as a weighted sum; Expressed as the central excitatory-surround inhibitory ON system; Denotes the central inhibition-surround excitation OFF system; B indicates the blue channel, G indicates the green channel, and R indicates the red channel.

[0079] see image 3 , a flow chart 20 of the method steps for fusion of an infrared image and a low-light color image provided by the present invention, detailed as...

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Abstract

The invention provides a system and a method of fusion of an infrared-radiation (IR) image and a low-light-level (LLL) color image. According to the system and the method, lateral inhibition enhancement (LTE) is carried out on the infrared image and the low-light-level image to acquire an IR image and an LLL image; the IR image is pre-processed to acquire a partial image T; weighting and calculation are carried out on the LLL image and the T image to acquire an LLL' image; the LLL' image is processed to acquire a +LLL' image; and the IR image is processed to acquire a -IR image; the -IR imageenters a surrounding region of an ON module, the +LLL' image enters a center region of the ON module, and an image after fusion is acquired; and a red channel, a green channel and a blue channel are respectively adopted to carry out mapping on the fusion image, the +LLL' image and the -IR image. According to the system and method, a bionic biological visual ON-OFF model is adopted, the infrared-radiation image passing through an OFF system and the low-light-level image passing through an ON system are respectively input into an inhibition area and an excitement area of the ON system, and the fusion image which accords with human eye vision, is clear in a target, and is rich in background details is obtained.

Description

technical field [0001] The invention belongs to the field of image technology, and in particular relates to a system and method for fusing infrared images and low-light color images. Background technique [0002] Because the infrared image is the image produced by the radiation of the object itself, it can "actively" obtain the target information in the scene, and can well display the hidden hot target, which is less affected by the lighting conditions and bad weather, but at the same time due to Due to the limitations of the imaging principle, the contrast of the infrared image is low, the spatial correlation is strong, the ability to reflect the target details is relatively poor, and the imaging effect does not conform to the visual habits of the human eye. [0003] Low-light images belong to the category of visible light, especially in low-light conditions. Compared with infrared images, the content information is richer, which can better describe the details of the envir...

Claims

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Application Information

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IPC IPC(8): G06T5/50H04N5/265
CPCG06T5/50G06T2207/20221H04N5/265
Inventor 赵国如张阵李慧奇宁运琨王磊
Owner SHENZHEN INST OF ADVANCED TECH
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