CN109361906A - Thermal imaging is ultralow to shine recognition of face ball-shaped camera - Google Patents
Thermal imaging is ultralow to shine recognition of face ball-shaped camera Download PDFInfo
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- CN109361906A CN109361906A CN201811584530.XA CN201811584530A CN109361906A CN 109361906 A CN109361906 A CN 109361906A CN 201811584530 A CN201811584530 A CN 201811584530A CN 109361906 A CN109361906 A CN 109361906A
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- thermal imaging
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- 238000001931 thermography Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 19
- 238000012544 monitoring process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
It is ultralow according to recognition of face ball-shaped camera that the present invention provides a kind of thermal imagings, including MCU, image acquisition units, image processing unit, image analyzing unit, image encoding output unit, graphic images output unit, first optical sensor, second optical sensor, zoom lens control unit, described first, second optical sensor is separately connected described image acquisition unit, described image acquisition unit connects image processing unit, the graphic images output unit connects described image analytical unit, the MCU respectively with image processing unit, image analyzing unit, image encoding output unit, zoom lens control unit and light filling unit connection.A kind of thermal imaging of the present invention is ultralow to can be realized round-the-clock, high-accuracy recognition of face according to recognition of face ball-shaped camera.
Description
Technical field
The invention belongs to camcorder technology fields, image more particularly, to a kind of thermal imaging is ultralow according to recognition of face ball-type
Machine.
Background technique
Ball-shaped camera is a kind of intelligent video camera front end, is the most common front monitoring front-end of monitoring system, can adapt to
Round-the-clock, multi-angle of view monitoring occasion.And being equipped with different intelligent analysis process may be implemented the difference of various application scenarios
Demand.
Ball-shaped camera is the product of high integration, is integrated with communication system and camera chain, intellectual analysis processing system
Whether system, intellectual analysis processing system can analyze video image, determine in monitoring range with the presence of personnel.And it is several big
Between system, play lateral connection is MCU microcontroller, and the functional normal operation of institute is realized in MCU control.
Only one general imaging sensor of existing recognition of face ball-shaped camera, night color mode, noise is big, people
Face details reduction degree is low, and night white-black pattern only restores face elementary contour, and details missing is serious, no matter colored, white-black pattern,
The primary image performance that recognition of face can not all be reached requires, this results in the low accuracy rate according to the identification of environment human face can be significantly
It reduces.
Under existing recognition of face ball-shaped camera night-environment, since illumination is low, target is small, the detecting of distant object
Rate is very low, this causes low very high according to missing inspection personnel targets rate under environment.
Summary of the invention
In view of this, the present invention is directed to propose a kind of ultralow photograph recognition of face ball-shaped camera of thermal imaging, existing to solve
Video camera human face detection rate is low, recognition accuracy depends on the illumination of photographed scene, can not achieve round-the-clock high-accuracy people
The problem of face identifies.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
Thermal imaging is ultralow to shine recognition of face ball-shaped camera, including MCU, image acquisition units, image processing unit, image
Analytical unit, image encoding output unit, graphic images output unit, the first optical sensor, the second optical sensor, varifocal mirror
Head control unit, first, second optical sensor are separately connected described image acquisition unit, the connection of described image acquisition unit
Image processing unit, the graphic images output unit connect described image analytical unit, the MCU respectively with image procossing
Unit, image analyzing unit, image encoding output unit, the connection of zoom lens control unit.
Further, first optical sensor is visible light sensor, and second optical sensor is infrared light sensing
Device, the visible light sensor and the infrared light transducer[sensor are used to incude the visible light and infrared signal in photographed scene.
Further, the MCU, image processing unit and image analyzing unit use the same chip, described image
Processing unit and described image analytical unit all pass through internal interface and carry out data transmission with the MCU.
Further, the chip model is Hi3559AV200.
Further, described image processing unit is used to carry out fusion treatment to image, and evaluates brightness of image.
Further, the graphic images output unit is used to detect the human body target that night remote scene occurs,
And image/video is transferred to described image analytical unit.
Further, described image analytical unit transmits human body to the MCU after image analysis determines human body target
Echo signal, the MCU control zoom lens control unit make camera lens complete zoom action.
Further, described image encoding output unit is used to image carrying out coding output.
Further, the MCU is also connected with light filling unit, and the light filling unit is according to the brightness of different photographed scenes
Carry out light filling.
Compared with the existing technology, a kind of ultralow be provided with according to recognition of face ball-shaped camera of thermal imaging of the present invention can
Light-exposed sensor, infrared light transducer[sensor and graphic images output unit detect long distance by graphic images output unit
From human body target, face recognition accuracy rate is high, is provided with light filling unit, very low for photographed scene brightness dependency degree, realizes complete
Weather personnel detecting, the recognition of face of high-accuracy.
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 is functional block diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram schematic diagram of MCU of the embodiment of the present invention；
Fig. 3 is the circuit diagram of image processing unit of the embodiment of the present invention；
Fig. 4 is the circuit diagram of visible light sensor of the embodiment of the present invention and infrared light transducer[sensor；
Fig. 5 is the circuit diagram of image acquisition units of the embodiment of the present invention；
Fig. 6 is the circuit diagram of graphic images of embodiment of the present invention output unit；
Fig. 7 is the circuit diagram of image of embodiment of the present invention encoding output unit；
Fig. 8 is the circuit diagram of light filling unit of the embodiment of the present invention；
Fig. 9 is the circuit diagram of zoom lens of embodiment of the present invention control unit.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is a kind of ultralow functional block diagram according to recognition of face ball-shaped camera of thermal imaging, and thermal imaging is ultralow to shine people
Face identifies ball-shaped camera, it is characterised in that: including MCU, image acquisition units, image processing unit, image analyzing unit, figure
Picture encoding output unit, graphic images output unit, the first optical sensor and the second optical sensor, described first, second
Optical sensor is separately connected described image acquisition unit, and described image acquisition unit connects image processing unit, the thermal imaging
Image output unit connect described image analytical unit, the MCU respectively with image processing unit, image analyzing unit, image
Encoding output unit connection, the MCU are also connected with light filling unit, and first optical sensor is visible light sensor, described
Second optical sensor is infrared light transducer[sensor.
The MCU, image processing unit and image analyzing unit use the same chip, described image processing unit with
Described image analytical unit all passes through internal interface and carries out data transmission with the MCU, and the chip model is
Hi3559AV200, integrates double-core A73 and four core A53, and processing speed faster, realizes the quick analysis processing of image, Fig. 2 is institute
The circuit diagram of MCU is stated, Fig. 3 is the circuit diagram of described image processing unit.
The circuit diagram of the visible light sensor and infrared light transducer[sensor is as shown in figure 4, the visible light sensor is used for
Incude the visible light in photographed scene, the infrared light transducer[sensor is used to incude the infrared light in photographed scene.The visible light
The signal that sensor and the infrared light transducer[sensor sense is transferred to described image processing unit through described image acquisition unit,
The circuit diagram of described image acquisition unit is as shown in Figure 5.
The graphic images output unit is used to detect the human body target that night remote scene occurs, and circuit diagram is as schemed
Shown in 6.
Described image encoding output unit is used to carry out compressed encoding to image, and circuit diagram is as shown in Figure 7.
The MCU unit is also connected with light filling unit, and the circuit diagram of the light filling unit is as shown in Figure 8.
The principle of the present invention is as follows: the visible light sensor and the infrared light transducer[sensor induction photographed scene in can
Light-exposed and infrared signal, the signal are sent to described image processing unit through described image acquisition unit, at described image
The image information that unit feeds back visible light sensor and infrared light transducer[sensor is managed, fusion treatment is carried out, image coding output is single
The image handled well is carried out coding output by member；When human body target is in it is remote when, the visible light sensor and described
Infrared sensor is difficult to discover, and the graphic images output unit can detect the human body that night remote scene occurs
Human body target image is sent to described image analytical unit, described image analytical unit by target, graphic images output unit
After carrying out image analysis, when being confirmed as human body target, human body echo signal, the MCU control zoom lens control are conveyed to MCU
Unit makes camera lens complete zoom action, and the circuit diagram of the zoom lens control unit is as shown in figure 9, after zoom, by visible
Optical sensor continues to be acquired image with infrared sensor.In addition, described image processing unit is bright by evaluation image
Degree, to show whether present filming scene too dark, if need to open light filling, the MCU control the light filling unit according to
The brightness of different photographed scenes adjusts the brightness of infrared lamp.
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 (8)
1. thermal imaging is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: including MCU, image acquisition units, image procossing
Unit, image analyzing unit, image encoding output unit, graphic images output unit, the first optical sensor, the second light sensing
Device, zoom lens control unit, first, second optical sensor are separately connected described image acquisition unit, and described image is adopted
Collect unit and connect image processing unit, the graphic images output unit connects described image analytical unit, the MCU difference
It is connect with image processing unit, image analyzing unit, image encoding output unit, zoom lens control unit.
2. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: the MCU is also
It is connected with light filling unit, the light filling unit carries out light filling according to the brightness of different photographed scenes.
3. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: first light
Sensor is visible light sensor, second optical sensor be infrared light transducer[sensor, the visible light sensor with it is described red
Outer optical sensor is used to incude the visible light and infrared signal in photographed scene.
4. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: the MCU, figure
As processing unit and image analyzing unit use the same chip.
5. thermal imaging according to claim 4 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: described chip-shaped
Number be Hi3559AV200.
6. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: at described image
It manages unit to be used to carry out fusion treatment to image, and evaluates brightness of image.
7. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: the thermal imaging
Image output unit is used to detect the human body target that night remote scene occurs, and image/video is transferred to described image point
Analyse unit.
8. thermal imaging according to claim 1 is ultralow to shine recognition of face ball-shaped camera, it is characterised in that: described image point
Analysis unit sends MCU to for analyzing image, and by analysis result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584530.XA CN109361906A (en) | 2018-12-24 | 2018-12-24 | Thermal imaging is ultralow to shine recognition of face ball-shaped camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584530.XA CN109361906A (en) | 2018-12-24 | 2018-12-24 | Thermal imaging is ultralow to shine recognition of face ball-shaped camera |
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| CN109361906A true CN109361906A (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811584530.XA Pending CN109361906A (en) | 2018-12-24 | 2018-12-24 | Thermal imaging is ultralow to shine recognition of face ball-shaped camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741209A (en) * | 2019-03-25 | 2020-10-02 | 浙江宇视科技有限公司 | Image acquisition method and system, readable storage medium and electronic equipment |
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| CN104883481A (en) * | 2015-05-11 | 2015-09-02 | 杭州奕霖传感科技有限公司 | Double-spectrum infrared thermal imaging ball machine |
| CN106878682A (en) * | 2017-03-03 | 2017-06-20 | 天津天地伟业信息系统集成有限公司 | Infrared thermal imaging monitors spherical superstar light video camera |
| CN108090477A (en) * | 2018-01-23 | 2018-05-29 | 北京易智能科技有限公司 | A kind of face identification method and device based on Multi-spectral image fusion |
| CN108564001A (en) * | 2018-03-21 | 2018-09-21 | 广州路捷电子科技有限公司 | Infrared ray face identification system and recognition methods |
-
2018
- 2018-12-24 CN CN201811584530.XA patent/CN109361906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883481A (en) * | 2015-05-11 | 2015-09-02 | 杭州奕霖传感科技有限公司 | Double-spectrum infrared thermal imaging ball machine |
| CN106878682A (en) * | 2017-03-03 | 2017-06-20 | 天津天地伟业信息系统集成有限公司 | Infrared thermal imaging monitors spherical superstar light video camera |
| CN108090477A (en) * | 2018-01-23 | 2018-05-29 | 北京易智能科技有限公司 | A kind of face identification method and device based on Multi-spectral image fusion |
| CN108564001A (en) * | 2018-03-21 | 2018-09-21 | 广州路捷电子科技有限公司 | Infrared ray face identification system and recognition methods |
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| CN111741209A (en) * | 2019-03-25 | 2020-10-02 | 浙江宇视科技有限公司 | Image acquisition method and system, readable storage medium and electronic equipment |
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Application publication date: 20190219 |