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Method and device for enhancing soft photosensitive mode judgment accuracy

An accuracy and mode technology, applied in the field of enhancing the accuracy of soft photosensitive mode judgment, can solve the problems of premature switching, repeated switching, wrong switching to day mode, etc., and achieve the effect of avoiding wrong switching and reducing the impact.

Active Publication Date: 2021-12-31
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) Image brightness, white balance parameters, exposure parameters and other parameters for soft photosensitive calculations are easily affected by infrared reflectivity, resulting in large differences in day and night switching in environments with different infrared reflectivity, or switching occurs too early, too late, or Problems such as repeated switching
[0007] (2) In the actual monitoring scene, if there is a moving object approaching at night, due to the increase in reflectivity, it may cause a wrong switch to day mode

Method used

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  • Method and device for enhancing soft photosensitive mode judgment accuracy
  • Method and device for enhancing soft photosensitive mode judgment accuracy
  • Method and device for enhancing soft photosensitive mode judgment accuracy

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0045] Such as figure 1 As shown, the embodiment of the present invention provides a method for enhancing the judgment accuracy of the soft photosensitive mode, and the specific steps are as follows.

[0046] Step 100: Estimate the infrared reflectivity of the current scene.

[0047] Step 200: Compensate the day and night determination parameters through the estimated infrared reflectance, and use the compensated day and night determination parameters to determine whether to switch between day and night.

[0048] It can be seen from the above steps that the embodiment of the present invention dynamically compensates the day and night determination parameters by estimating the infrared reflectance, which can avoid problems such as switching too early, too late, or repeated switching caused by the infrared reflectance, and can simultaneously meet The accuracy of soft photosensitive judgment in different environments prevents frequent day and night switching from affecting user ...

Embodiment 2

[0131] Based on the method for enhancing the judgment accuracy of the soft photosensitive mode provided in embodiment 1, this embodiment 2 provides a specific implementation example on the basis of embodiment 1.

[0132] Such as Figure 5 As shown, the specific process of this embodiment 2 is as follows:

[0133] Step 1. The initial mode is day mode. In this step, the camera is powered on for the first time and initialized to day mode.

[0134] Step 2, enter the judgment logic of day and night switching. In this step, after the camera enters the day mode, it starts to judge whether to switch between day and night. Since the infrared reflectance has not been estimated at this time, the compensation value can be set to zero.

[0135] Step 3, judging whether the day-night switching condition is satisfied. In this step, today’s day and night switching judgment is carried out, and the specific judgment formula is:

[0136] bv

[0137] If the c...

Embodiment 3

[0155] On the basis of the method for enhancing the accuracy of judging the soft photosensitive mode provided by the above-mentioned embodiments 1 to 2, the present invention also provides a device for enhancing the judging accuracy of the soft photosensitive mode that can be used to implement the above method and system, such as Image 6 Shown is a schematic diagram of the device architecture of the embodiment of the present invention. The device for enhancing the judgment accuracy of the soft photosensitive mode in this embodiment includes one or more processors 21 and memory 22 . in, Image 6 A processor 21 is taken as an example.

[0156] Processor 21 and memory 22 can be connected by bus or other means, Image 6 Take connection via bus as an example.

[0157] Memory 22, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs and modules, such as the enhanced soft photosensitive m...

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Abstract

The invention relates to a method and a device for enhancing soft photosensitive mode judgment accuracy. The method mainly comprises the following steps: estimating the infrared reflectance of a current scene; and compensating the day and night judgment parameters through the estimated infrared reflectance, and judging whether day and night switching is carried out or not by using the compensated day and night judgment parameters. According to the method, the image brightness, the white balance parameter, the exposure parameter and the like can be dynamically compensated by estimating the infrared reflectance, and the problems of too early switching, too late switching, repeated switching and the like caused by the infrared reflectance are avoided.

Description

technical field [0001] The invention relates to the technical field of infrared security monitoring, in particular to a method and a device for enhancing the judgment accuracy of a soft photosensitive mode. Background technique [0002] Day and night switching is currently a very important function of infrared security monitoring, and it is an important aspect of judging the performance of security cameras when switching to infrared night vision mode at an accurate moment. During the daytime, the camera is in daytime mode. Due to sufficient light, the infrared fill light of the security camera will be turned off, and the IR-CUT (infrared filter for filtering out infrared light) of the camera will be turned on at the same time to output full-color images. At night, the camera switches to infrared night vision mode. Due to weak visible light, it is necessary to turn on the infrared fill light and turn off the IR-CUT at the same time to output grayscale images. [0003] At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/667H04N23/71Y02B20/40
Inventor 肖诗修姜超
Owner FENGHUO COMM SCI & TECH CO LTD
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