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Method for identifying infrared picture and visible light picture by using wavelength information

A technology of information recognition and visible light, applied in the field of image processing, can solve the problems of application layer processing disorder and data discarding, and achieve the effect of simple method, low cost and low cost

Pending Publication Date: 2021-06-18
深圳君正时代集成电路有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0014] Since the data received by the ISP is not distinguished during this process, that is to say, no matter what data comes in, it is processed in the same way, and a certain frame of data may be discarded during the processing, which leads to the output The image data arrangement is not strictly two cameras alternating, so that the application layer will be confused when processing

Method used

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  • Method for identifying infrared picture and visible light picture by using wavelength information
  • Method for identifying infrared picture and visible light picture by using wavelength information
  • Method for identifying infrared picture and visible light picture by using wavelength information

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Embodiment Construction

[0053] The specific implementation schemes that this application involves include:

[0054] like Figure 5 As shown in the schematic diagram of the method of this application, in order to solve the problems in the prior art, after receiving the image data, through calculation, it can be distinguished whether it is the data captured by the visible light camera or the data captured by the infrared camera.

[0055] First, let's look at the principle of the image sensor. like Image 6 As shown, one sensor unit is sensitive to light in a certain wavelength range, and multiple sensor units form an array to form an image sensor.

[0056] Then, if Figure 7 As shown, each point in the array is converted into a digital signal by an ADC, and finally becomes image data.

[0057] Visible light contains the three primary colors of red, green and blue, and the pixel array is arranged with sensitive units of different wavelengths to achieve the purpose of detecting the three primary colo...

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Abstract

The invention provides a method for identifying an infrared picture and a visible light picture by utilizing wavelength information. The method comprises the following steps: S1, acquiring initial image data of pictures; S2, traversing each pixel of the picture; S3, calculating the infrared characteristic value of the picture according to the following formula: a set m1 of pixels in the picture is equal to {n1, n2,...}, each pixel is n and comprises three color values of r, g and b, n is equal to {r, g, b}, then calculating x, and when r>=b>=g is possible, xi=1, and when r>=b>=g is impossible, xi=0, then calculating the average value of x, wherein i is a positive integer, and the value is an infrared characteristic value; and S4, distinguishing the infrared picture data and the visible light picture data according to the infrared characteristic value.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for identifying infrared pictures and visible light pictures by using wavelength information. Background technique [0002] With the continuous development of science and technology, especially the development of computer vision technology, image processing has been widely used. For example, in face recognition technology, image processing is very important. At present, face recognition technology needs to use dual cameras. The hardware solution requires a processor to connect two cameras. One of the two cameras is a visible light camera and the other is an infrared camera. Common prior art terms include: [0003] Infrared picture: refers to the image data captured by the infrared camera; [0004] Visible light image: refers to the image data captured by a visible light camera; [0005] ISP: The image signal processor (ISP) module is a complete camera subsyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/90
CPCG06T7/90G06T2207/10048
Inventor 王钊
Owner 深圳君正时代集成电路有限公司
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