CN109600557A - A kind of method that infrared lamp homogenizes light filling - Google Patents
A kind of method that infrared lamp homogenizes light filling Download PDFInfo
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- CN109600557A CN109600557A CN201811565558.9A CN201811565558A CN109600557A CN 109600557 A CN109600557 A CN 109600557A CN 201811565558 A CN201811565558 A CN 201811565558A CN 109600557 A CN109600557 A CN 109600557A
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- Prior art keywords
- infrared lamp
- light
- light filling
- region
- homogenizes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of methods that infrared lamp homogenizes light filling, comprising: step 1: according to the number of infrared lamp and light-emitting angle by picture portion；Step 2: the image of subregion is classified；Step 3: counting the brightness in sorted each piece of region, calculates the light exposure in each piece of region；Step 4: controlling the brightness of each infrared lamp respectively, carries out homogenizing light filling.The method that a kind of infrared lamp of the present invention homogenizes light filling solves the problems, such as that current infrared lamp light filling is irregular and leads to infrared image overexposure.
Description
Technical field
The invention belongs to intelligent monitoring safety-security area, a kind of method for homogenizing light filling more particularly, to infrared lamp.
Background technique
Infrared lamp is the abbreviation of night vision monitoring infrared lamp, is to cooperate monitor camera in the light aid of night acquisition image
Tool, video camera is when monitoring at night, light filling of most of phase chance by infrared lamp, the monitoring of Lai Shixian scene, infrared lamp hair
Two kinds of a length of 850nm and 940nm of light wave out, be all black light, has the characteristics that hidden, energy saving, nearly 10 years infrared lamps
It is widely used in protection and monitor field.
In the prior art, infrared lamp device category is single, and the light filling of most infrared lamp can all lead to flashlight
Effect makes the reason of details of the marginal portion of monitoring scene is because of exposure disappearance, and when encountering has shelter, it is possible to
Directly result in the thorough overexposure of image.
Summary of the invention
In view of this, the present invention is directed to propose a kind of method that infrared lamp homogenizes light filling, solves current infrared lamp light filling
It is irregular and the problem of lead to infrared image overexposure.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of method that infrared lamp homogenizes light filling, comprising:
Step 1: according to the number of infrared lamp and light-emitting angle by picture portion；
Step 2: the image of subregion is classified；
Step 3: counting the brightness in sorted each piece of region, calculates the light exposure in each piece of region；
Step 4: controlling the brightness of each infrared lamp respectively, carries out homogenizing light filling.
Further, in step 1, by more infrared lamp arrays column distributions, for each infrared lamp be arranged the different angles of divergence and
The Lamp cup of light-emitting angle.
The light-emitting angle of Lamp cup can be adjusted arbitrarily, can be adjusted optimal according to different camera lens coke sections and areas imaging
Light-emitting angle.
Further, in step 1, public area and independent zones are divided the image into, public area is that more infrared lamp light fillings have friendship
The region of collection, independent zones are the region of only single infrared lamp light filling.
Further, it in step 2, is illuminated according to by which infrared lamp, public area and independent zones is classified.
Further, in step 3, the light exposure in each piece of region after classification is calculated using automatic exposure AE algorithm.
Further, in step 4, according to the light exposure in each piece of region obtained in step 3, each infrared lamp is acquired
The curve of light exposure and electric current adjusts the driving current of each infrared lamp in the range of the curve, to adjust each infrared
The brightness of lamp achievees the purpose that homogenize light filling.
Compared with the existing technology, the method that a kind of infrared lamp of the present invention homogenizes light filling has the advantage that
The method that a kind of infrared lamp of the present invention homogenizes light filling, by the regional compartmentalization that projects multiple infrared lamps,
Classification counts brightness calculation light exposure respectively, to carry out brightness control to different infrared lamps, reaches the mesh for homogenizing light filling pair
, improve the picture quality of infrared video.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 homogenizes the method flow schematic diagram of light filling for a kind of infrared lamp described in the embodiment of the present invention；
Fig. 2 homogenizes four infrared lamp arrangement modes in the method for light filling for a kind of infrared lamp described in the embodiment of the present invention and shows
It is intended to；
Fig. 3 homogenizes four infrared lamps imaging distributions in the method for light filling for a kind of infrared lamp described in the embodiment of the present invention and shows
It is intended to.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-3, a kind of method that infrared lamp homogenizes light filling, comprising:
Step 1: according to the number of infrared lamp and light-emitting angle by picture portion；
Step 2: the image of subregion is classified；
Step 3: counting the brightness in sorted each piece of region, calculates the light exposure in each piece of region；
Step 4: controlling the brightness of each infrared lamp respectively, carries out homogenizing light filling.
As shown in Figure 1-3, by more infrared lamp arrays column distributions, different divergings are arranged for each infrared lamp in step 1
The Lamp cup at angle and light-emitting angle.
The light-emitting angle of Lamp cup can be adjusted arbitrarily, can be adjusted optimal according to different camera lens coke sections and areas imaging
Light-emitting angle.
As shown in Figure 1-3, dividing the image into public area and independent zones in step 1, public area is more infrared lamp light fillings
There is the region of intersection, independent zones are the region of only single infrared lamp light filling.
As shown in Figure 1-3, being illuminated according to by which infrared lamp in step 2, public area and independent zones being classified.
The present embodiment by taking four infrared lamps as an example, as be in Fig. 2 four infrared lamps (A lamp, B lamp, C lamp, D lamp) Lamp cup and
Its light-emitting angle is in the projection of infrared lamp plane, and Fig. 3 is the distribution of the energy of infrared lamp in the picture, wherein four infrared lamps are only
The vertical region illuminated is independent zones, and the region of four infrared lamp two or more phase intersections is public area, will independently be distinguished into four classes
That is public area, is categorized into the region illuminated jointly by which infrared lamp, example by the region illuminated respectively of A lamp, B lamp, C lamp, D lamp
Such as A lamp and B lamp；Or C lamp and D lamp；Or the types such as A lamp, B lamp and C lamp.
As shown in Figure 1-3, calculating the exposure in each piece of region after classification using automatic exposure AE algorithm in step 3
Amount.
As shown in Figure 1-3, according to the light exposure in each piece of region obtained in step 3, being acquired each red in step 4
The curve of outer lamp light exposure and electric current adjusts the driving current of each infrared lamp in the range of the curve, to adjust each
The brightness of infrared lamp achievees the purpose that homogenize light filling.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method that infrared lamp homogenizes light filling, it is characterised in that: include:
Step 1: according to the number of infrared lamp and light-emitting angle by picture portion；
Step 2: the image of subregion is classified；
Step 3: counting the brightness in sorted each piece of region, calculates the light exposure in each piece of region；
Step 4: controlling the brightness of each infrared lamp respectively, carries out homogenizing light filling.
2. the method that a kind of infrared lamp according to claim 1 homogenizes light filling, it is characterised in that: in step 1, by more
The Lamp cup of the different angles of divergence and light-emitting angle is arranged for each infrared lamp for infrared lamp arrays column distribution.
3. the method that a kind of infrared lamp according to claim 2 homogenizes light filling, it is characterised in that: in step 1, by image
It is divided into public area and independent zones, public area is the region that more infrared lamp light fillings have intersection, and independent zones are only single infrared lamp
The region of light filling.
4. the method that a kind of infrared lamp according to claim 3 homogenizes light filling, it is characterised in that: in step 2, according to by
Which infrared lamp illuminates, and public area and independent zones are classified.
5. the method that a kind of infrared lamp according to claim 1 homogenizes light filling, it is characterised in that: in step 3, using certainly
Dynamic exposure AE algorithm calculates the light exposure in each piece of region after classification.
6. the method that a kind of infrared lamp according to claim 1 homogenizes light filling, it is characterised in that: in step 4, according to step
The light exposure in each piece of region obtained in rapid three acquires the curve of each infrared lamp light exposure and electric current, in the model of the curve
The interior driving current for adjusting each infrared lamp is enclosed to achieve the purpose that homogenize light filling to adjust the brightness of each infrared lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565558.9A CN109600557A (en) | 2018-12-20 | 2018-12-20 | A kind of method that infrared lamp homogenizes light filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811565558.9A CN109600557A (en) | 2018-12-20 | 2018-12-20 | A kind of method that infrared lamp homogenizes light filling |
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| CN109600557A true CN109600557A (en) | 2019-04-09 |
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| CN201811565558.9A Pending CN109600557A (en) | 2018-12-20 | 2018-12-20 | A kind of method that infrared lamp homogenizes light filling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336954A (en) * | 2019-07-11 | 2019-10-15 | 创新奇智(重庆)科技有限公司 | Automatic light-supplementing adjusting method, system and storage medium |
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| CN102591101A (en) * | 2012-02-07 | 2012-07-18 | 广东美的电器股份有限公司 | Camera supplementary lighting device and control method thereof |
| CN104853110A (en) * | 2015-04-30 | 2015-08-19 | 广东欧珀移动通信有限公司 | Flash lamp control method and terminal |
| US20170166130A1 (en) * | 2007-08-09 | 2017-06-15 | Donnelly Corporation | Vehicular camera monitoring system |
| CN107995436A (en) * | 2017-12-19 | 2018-05-04 | 浙江大华技术股份有限公司 | A kind of light compensation method and device |
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2018
- 2018-12-20 CN CN201811565558.9A patent/CN109600557A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN101102416A (en) * | 2007-07-25 | 2008-01-09 | 北京中星微电子有限公司 | A method and device for automatic control of light supplementary light of shooting device |
| US20170166130A1 (en) * | 2007-08-09 | 2017-06-15 | Donnelly Corporation | Vehicular camera monitoring system |
| CN102591101A (en) * | 2012-02-07 | 2012-07-18 | 广东美的电器股份有限公司 | Camera supplementary lighting device and control method thereof |
| CN104853110A (en) * | 2015-04-30 | 2015-08-19 | 广东欧珀移动通信有限公司 | Flash lamp control method and terminal |
| CN107995436A (en) * | 2017-12-19 | 2018-05-04 | 浙江大华技术股份有限公司 | A kind of light compensation method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336954A (en) * | 2019-07-11 | 2019-10-15 | 创新奇智(重庆)科技有限公司 | Automatic light-supplementing adjusting method, system and storage medium |
| CN110336954B (en) * | 2019-07-11 | 2023-05-19 | 创新奇智(重庆)科技有限公司 | Automatic light supplementing adjustment method, system and storage medium |
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Application publication date: 20190409 |
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