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Infrared lamp control method for infrared network camera

A technology of a network camera and a control method, which is applied in the field of infrared network cameras, can solve the problems of high implementation cost and easy misjudgment, and achieve the effect of ensuring input quality

Active Publication Date: 2014-05-07
SHENZHEN INFINOVA
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Problems solved by technology

[0004] The present invention proposes an infrared lamp control method for an infrared network camera, mainly solving the problem that in the prior art, the photoelectric characteristic of a photoresistor is used to sense the brightness of the environment to determine the supplementary light of the camera, which is easy to cause misjudgment, and the implementation cost is high The problem

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  • Infrared lamp control method for infrared network camera
  • Infrared lamp control method for infrared network camera
  • Infrared lamp control method for infrared network camera

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Embodiment Construction

[0028] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0029] see image 3 , the present embodiment provides a method for controlling an infrared lamp of an infrared network camera, comprising the following steps:

[0030] S10. Collect the scene image in the standard infrared scene and obtain the red component value, green component value and blue component value of all pixels in the image, and calculate the standard infrared scene image according to the red component value, green component value and blue component value The optical feature values ​​of all pixels in the standard infrared scene image, wherein the optical feature value is the ratio of the red component value to the green component value and the ratio of the blue component value to the green component value of all pixels in the s...

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Abstract

The invention discloses an infrared lamp control method for an infrared network camera. The infrared lamp control method comprises the following steps of: S10, acquiring a scenery image in a standard infrared scene, acquiring the red compound values, green compound values and blue compound values of all pixel points in the image, and calculating the optical characteristic values of all the pixel points in the standard infrared scene; S20, calculating the assessed value of a visible light intensity according to the optical characteristic values of the pixel points of the image in the standard infrared scene and the preset visible light sensitivity threshold value of a single pixel point; S30, when the assessed value of the visible light intensity is greater than the visible light sensitivity threshold value, automatically turning off an infrared lamp and switching the camera to a day mode; S40, when the compensation RGB gain in the infrared network camera is greater than a gain sensitivity threshold value, automatically turning on the infrared lamp and switching the camera to a night mode. The infrared lamp control method disclosed by the invention is free from the phenomenon of misjudgement, and beneficial to the accurate mutual switchover of the camera between the night mode and the day mode, thus ensuring the input quality of the image.

Description

technical field [0001] The invention relates to an infrared network camera, in particular to an infrared lamp control method of the infrared network camera. Background technique [0002] Infrared light on and off control is a must-have function on an infrared network camera. Turn on the infrared light when the ambient light is weak, and use the photosensitive characteristics of the image sensor in the near-infrared band to supplement the light of the camera. The on and off control of the infrared lamp can reduce power consumption and increase the service life of the infrared lamp. [0003] The method usually used in the prior art is to use the photoelectric characteristics of the photoresistor to receive the brightness of the environment, and then convert the change of the resistance value of the photoresistor into the change of the electrical signal to obtain the brightness of the environment to judge whether it is necessary to turn on the infrared lamp for supplementary l...

Claims

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Application Information

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IPC IPC(8): H05B37/02H04N5/235
CPCY02B20/40
Inventor 庄开元
Owner SHENZHEN INFINOVA
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