A method for eliminating stripe noise of an infrared image

A stripe noise, infrared image technology, applied in the field of image processing, can solve problems such as inability to correct, complex, poor real-time performance, etc., to achieve the effect of improving image quality

Pending Publication Date: 2019-06-18
TIANJIN UNIV
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Problems solved by technology

[0009] However, the existing technical processing schemes for infrared single-frame images are relatively comple...

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  • A method for eliminating stripe noise of an infrared image
  • A method for eliminating stripe noise of an infrared image
  • A method for eliminating stripe noise of an infrared image

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[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] see figure 1 , the present invention provides a method for eliminating streak noise in an infrared image, which is a method for eliminating streak noise in an infrared image based on a recursive mode, and specifically includes the following steps:

[0030] The first step is to obtain the original infrared single-frame image containing column stripe noise;

[0031] In the first step, in terms of specific implementation, the original infrared single-frame image containing column fringe noise can be directly obtained from the output signal of the infrared sensor.

[0032] In the second step, according to the original infrared single-frame image, a deviation function between column stripe noises of adjacent columns in the original infrar...

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Abstract

The invention discloses a method for eliminating stripe noise of an infrared image. The method comprises the following steps of: 1, acquiring an original infrared single-frame image containing columnstripe noise; 2, establishing a deviation function between column stripe noises of adjacent columns in the original infrared single-frame image according to the original infrared single-frame image; Step 3, minimizing the deviation function, and estimating the noise value of the column stripe noise of each column by using a recursion mode; And 4, subtracting the estimated noise value of the columnstripe noise of each column from the original infrared single-frame image containing the column stripe noise so as to correct the original infrared single-frame image and obtain the infrared single-frame image without the stripe noise. According to the method for eliminating the stripe noise of the infrared image, the stripe noise existing in the infrared single-frame image can be effectively corrected in time, the image quality of the finally obtained infrared single-frame image is improved, and great practical significance is achieved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for eliminating streak noise in infrared images. Background technique [0002] At present, infrared imaging is very important in industrial, military and medical applications because it can obtain infrared information of people. [0003] Infrared focal plane array (IRFPA) is mainly used in infrared imaging systems. Infrared focal plane array IRPFA is composed of small sensors and readout circuits. The multi-element planar array infrared detection device corresponding to the sensitive element. [0004] For the infrared focal plane array IRPFA, the spatial response of the pixel and the bias voltage of the readout circuit are different due to the mismatch of the components and the variation of the parameters in the manufacturing process. The inhomogeneity leads to non-uniform noise, called fixed pattern noise (FPN), whose presence severely degrades the quality of...

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Application Information

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IPC IPC(8): G06T5/00
Inventor 高静杜啸星徐江涛聂凯明史再峰
Owner TIANJIN UNIV
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