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Noise-suppression infrared image digital detail enhancement method

An infrared image and noise suppression technology, which is applied in image enhancement, image data processing, image analysis, etc., can solve the problem of weak noise suppression ability, and achieve the effect of effective noise suppression and digital detail enhancement

Inactive Publication Date: 2017-12-12
TIANJIN XITONG ELECTRONICS EQUIP CO LTD
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Problems solved by technology

However, since there is no essential difference between the detail information in the image and the noise, this type of method has a weak ability to suppress noise.

Method used

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  • Noise-suppression infrared image digital detail enhancement method
  • Noise-suppression infrared image digital detail enhancement method
  • Noise-suppression infrared image digital detail enhancement method

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Embodiment Construction

[0029] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] This embodiment proposes a method for enhancing the digital details of an infrared image that suppresses noise. The specific steps of the method are as follows: figure 1 shown, including:

[0031] S1, input 14-bit original image I, use the first wizard filter (smoothing scale coefficient ε=80) to filter the 14-bit original image I, and obtain the first low-pass filtered image B1, such as figure 2 Shown; Use the second wizard filter (smoothing scale coefficient ε=800) to filter the 14-bit original image I to obtain the second low-pass filter image B2, as image 3 shown.

[0032] Among them, the expression of the guide filter is as follows:

[0033]

[0034] Among them, p i is a point in the guide image, q ...

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Abstract

The invention belongs to the technical field of infrared image display processing, and particularly relates to a high-dynamic rage infrared image digital detail enhancement method with noise suppression ability. The infrared image digital detail enhancement method comprises the following steps of: respectively filtering a 14-bit original image by using two wizard filters with different smooth scale coefficients; obtaining detail images through matrix subtraction; and adding the detail image with a converted 8-bit image through matrix addition. According to the method, noises of infrared images can be effectively suppressed and digital details can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of infrared image display processing, and in particular relates to a high dynamic range infrared image digital detail enhancement method with noise suppression capability. Background technique [0002] With the continuous development of infrared detector technology, infrared imaging technology is more and more widely used in many fields such as security monitoring and disease prevention. Compared with visible light images, infrared images have weak contrast and less detail information, and the analog signals output by infrared detectors are usually sampled as 14-bit high dynamic range digital infrared images, which are not compatible with most 8-bit display systems. Cannot be used directly for imaging display. Therefore, it is necessary to convert the high dynamic range infrared image data into an 8-bit image data format suitable for display, and improve the digital detail display effect of the infrared ima...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T5/00
CPCG06T5/50G06T2207/10048G06T2207/20224G06T5/70
Inventor 李科张志恒谢轲原亮
Owner TIANJIN XITONG ELECTRONICS EQUIP CO LTD
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