CN108709640A - Multispectral complex detection system - Google Patents
Multispectral complex detection system Download PDFInfo
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- CN108709640A CN108709640A CN201810385267.5A CN201810385267A CN108709640A CN 108709640 A CN108709640 A CN 108709640A CN 201810385267 A CN201810385267 A CN 201810385267A CN 108709640 A CN108709640 A CN 108709640A
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000003384 imaging method Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 16
- 230000003760 hair shine Effects 0.000 claims description 6
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- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000004297 night vision Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010365 information processing Effects 0.000 description 3
- 238000000701 chemical imaging Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
- G01J2003/2826—Multispectral imaging, e.g. filter imaging
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Abstract
The present invention proposes a kind of multispectral complex detection system, mainly solves that existing multispectral detecting system infrared acquisition wave band is few, and real-time is insufficient, the not high technical problem of tracking accuracy.It includes imaging system unit, information process unit and control unit, wherein imaging system unit using near-infrared, in infrared and far infrared camera and position sensitive detector, the infrared target image of three kinds of different-wavebands of the same target of Same Scene is obtained by light splitting/coaxial optical path of imaging system unit, information process unit calculates infrared target barycenter according to infrared target image, its position angle information is obtained, control unit carries out pose adjustment to realize aiming, tracking and the detection to infrared target according to the position angle information of infrared target.The present invention extends Infrared Target Detection wave band, effectively improves the target identification ability and anti-interference ability of system, improves the tracking accuracy and real-time of infrared target, can be used for car and boat night vision, security protection anti-terrorism, fire-fighting, Engineering Control and monitoring.
Description
Technical field
The invention belongs to photoelectron technical field more particularly to a kind of multispectral complex detection systems, can be used for car and boat night
Depending on, security protection anti-terrorism, fire-fighting, engineering process control and monitoring.
Background technology
With the development of photoelectron technology and the increasingly complexity of detection environment, the detection system of single frequency band or pattern will be difficult
In adapting to following demand, so corresponding detection system must also continue to develop innovation.
Existing detection system is broadly divided into single band detection system and multispectral detecting system.Wherein, single wave band
Detecting system generally uses an image device and a kind of optical filter to combine, preferable for a certain section therein imaging, still
Imaging effect for its all band is simultaneously bad, imaging will be caused incomplete in this way, including target information is few, while can lost
Many useful informations.
Multispectral detecting system can obtain multiple wave band target informations, while can also obtain by using multiple sensors
To more abundant spectral information, detection system detection accuracy can be improved, while target is identified by image co-registration, to mesh
Mark is other and significant increase is located, and has extremely wide development in the scope of application, detection accuracy, system stability etc.
Foreground.But multispectral detection generally requires the infrared camera using two or more different-wavebands and covers independent optical frames more
Head is to a target imaging, but the spatial attitude of more imaging devices is constantly present certain minute differences, the result of detection
There are target positioning to be not allowed, and method is of high cost, and installation area is also larger, exists simultaneously for infrared band detecting band model
Enclose the problem that narrow, complicated, cost is high, real-time is poor and detection accuracy is insufficient.
Invention content
It is an object of the invention in view of the above shortcomings of the prior art, propose a kind of multispectral complex detection system, with
The wavelength band to Infrared Target Detection is extended, the precision to target acquisition position and the real-time to target acquisition are improved.
To achieve the above object, the multispectral complex detection system of the present invention includes imaging system unit, information process unit
And control unit, it is characterised in that:
The imaging system unit, including near infrared camera, middle infrared camera, far infrared camera, position sensitive detector PSD,
Fast mirror and 7 dry spectroscopes composition, all elements are placed in parallel as three rows, wherein：
First row is sequentially placed the first spectroscope, the second spectroscope, third spectroscope and position sensitive detector from left to right
PSD,
Second row is sequentially placed fast mirror, the 4th spectroscope, the 5th spectroscope and near infrared camera from left to right,
Third row is sequentially placed far infrared camera, the 6th spectroscope, the 7th spectroscope and middle infrared camera from left to right,
Fast mirror is opposite with the second spectroscope position, and the 6th spectroscope is opposite with the 4th spectroscope position, the 7th point
Light microscopic is opposite with the 5th spectroscope position,
The outside of all element entirety is covered with shell, and is set at the shell before the first spectroscope there are one thang-kng window；
Infrared Targets light enters the first spectroscope by thang-kng window, shines the second spectroscope and is divided into two-way a and b, wherein
A enters PSD through third spectroscope all the way, and another way b shines the 4th spectroscope through fast mirror and is further divided into two-way b1And b2, one
Road b1Enter far infrared camera, another way b by the 6th spectroscope2By being further divided into two-way b after the 5th spectroscope21And b22, one
Road b21Into near infrared camera, another way b22By infrared camera in entering after the 7th spectroscope, and ensure in near-infrared phase
The spot center that machine, middle infrared camera, far infrared camera are formed is in imaging surface center, while ensureing position sensitive detector PSD's
Position angle information is zero.
Further, after Infrared Targets light is by thang-kng window incidence, it is ensured that the position angle information of position sensitive detector PSD
It is zero, is realized by adjusting relative position, height and the angle of the second spectroscope, third spectroscope and quick detector PSD.
Further, after Infrared Targets light is by thang-kng window incidence, it is ensured that near infrared camera, middle infrared camera, remote
The spot center that infrared camera is formed be in imaging surface center, is to first pass through to adjust the opposite of the 5th spectroscope and near infrared camera
Position, height and angle, then relative position, height and the angle of the 7th spectroscope and middle infrared camera are adjusted, finally adjust
The relative position, height and angle of six spectroscopes and far infrared camera is realized.
Further, described information processing unit includes：
CCD processing modules, CCD processing modules to the infrared picture that image forming process unit obtains carry out filter make an uproar, background segment,
Centroid calculation and output position offset, angle,
PSD processing modules, PSD processing modules handle simultaneously the facula position angle information that image forming process unit obtains
Output position offset, angle.
Further, described control unit includes：
Display module, the infrared image and information process unit obtained for real-time display imaging system unit CCD camera
Handle obtained position offset, angle；
Slave computer communication module, for by the position offset of information process unit, angle to pass to control unit
Host computer communication module, and receive the host computer communications module instructions information from control unit；
Host computer communication module, for receiving slave computer communication module information, and it is logical to pose adjustment module and slave computer
Letter module sends instructions information；
Pose adjustment module for receiving host computer communications module instructions information, and controls turntable and realizes pose adjustment.
Compared with prior art, the present invention having the following advantages that：
1, three kinds that the same target of Same Scene is obtained by light splitting/coaxial optical path and four image checking light paths of the invention
The spectrum picture of different-waveband realizes multiplexing multispectral imaging detection.
2, the present invention extends guidance system detecting band, to improve detection by multiplexing multispectral imaging
The information obtaining ability of system realizes the enhancing to target and background otherness, effectively improves the target identification energy of system
Power and anti-interference ability.
3, the present invention shares a thang-kng window using light splitting/coaxial optical path and three image checking light paths, more with using
A relatively independent subsystem is compared, and the resetting difficulty of Design of Mechanical Structure and whole system is reduced.
The result of actual measurement shows that bandwidth of the present invention is up to 100Hz, real-time is good, tracking accuracy≤10mrad, tracking accuracy
It is high.
Description of the drawings
Fig. 1 is the system block diagram of the present invention；
Fig. 2 is the imaging system cellular construction figure in the present invention；
Fig. 3 is the information process unit block diagram in the present invention；
Fig. 4 is the control unit block diagram in the present invention.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples, it should be understood that specific example described herein
It is only used to explain the present invention, does not limit the present invention.
Referring to Fig.1, the present invention includes imaging system unit, information process unit and control unit,
Imaging system unit includes near infrared camera, middle infrared camera, far infrared camera and position sensitive detector PSD；Information
Processing unit includes CCD processing modules and PSD processing modules；It is fast, upper that control unit includes display module, slave computer communicates mould
Machine communication module and pose adjustment module, infrared target by imaging system unit obtain near-infrared, in infrared, far infrared target
Information, infrared target information obtain infrared target deviation post and angle information by information process unit again, most afterwards through control
Unit progress target is shown and pose adjustment.
With reference to Fig. 2, near infrared camera, middle infrared camera in the imaging system unit, far infrared camera, the quick detection in position
Device PSD, fast mirror and 7 dry spectroscopes are placed in parallel as three rows, wherein：
First row is sequentially placed the first spectroscope, the second spectroscope, third spectroscope and position sensitive detector from left to right
PSD,
Second row is sequentially placed fast mirror, the 4th spectroscope, the 5th spectroscope and near infrared camera from left to right,
Third row is sequentially placed far infrared camera, the 6th spectroscope, the 7th spectroscope and middle infrared camera from left to right,
Fast mirror is opposite with the second spectroscope position, and the 6th spectroscope is opposite with the 4th spectroscope position, the 7th point
Light microscopic is opposite with the 5th spectroscope position,
The outside of all element entirety is covered with shell, and is set at the shell before the first spectroscope there are one thang-kng window；
Infrared Targets light enters the first spectroscope by thang-kng window, shines the second spectroscope and is divided into two-way a and b, wherein
A enters PSD through third spectroscope all the way, and another way b shines the 4th spectroscope through fast mirror and is further divided into two-way b1And b2, one
Road b1Enter far infrared camera, another way b by the 6th spectroscope2By being further divided into two-way b after the 5th spectroscope21And b22, one
Road b21Into near infrared camera, another way b22By infrared camera in entering after the 7th spectroscope, adjustment is first passed through at this time
The relative position of five spectroscopes and near infrared camera, height and angle, then to adjust the 7th spectroscope opposite with middle infrared camera
Position, height and angle finally adjust the relative position, height and angle of the 6th spectroscope and far infrared camera to ensure close
The spot center that infrared camera, middle infrared camera, far infrared camera are formed is in imaging surface center, while will be by adjusting second
Spectroscope, the relative position of third spectroscope and quick detector PSD, height and angle ensure the position angle of position sensitive detector PSD
It is zero to spend information.
First spectroscope, the 4th spectroscope, the 5th spectroscope, the 6th spectroscope and the 7th spectroscope use but unlimited
In BSW-520 spectroscopes, the second spectroscope and third spectroscope use but are not limited to BSW-711 spectroscopes, 7 spectroscope light splitting
Than being 50:50.
The near infrared camera uses but is not limited to Bobcat-320-GigE models, and camera lens uses ASY-000409 models,
Detecting band is 0.9-1.7 μm, pixel dimension ranging from 15-20mm, picture locating depth >=8.
The middle infrared camera uses but is not limited to Tigris-640-MCT models, and camera lens uses OPT-000226 models,
Detecting band is 3.7-4.8 μm, pixel dimension ranging from 15-20mm, picture locating depth >=8.
The far infrared camera uses but is not limited to Gobi-640-50mK-GigE models, and camera lens uses LM50HC-SW types
Number, detecting band is 8-12 μm, pixel dimension ranging from 15-20mm, picture locating depth >=8, and position sensitive detector PSD is selected but not
It is limited to the PSD4Dc models of Germany.
With reference to Fig. 3, the CCD processing modules in described information processing unit are infrared for being obtained to image forming process unit
Picture carry out filter make an uproar, background segment, centroid calculation, the picture after image procossing is then passed into control unit and is shown,
Position offset, angle after data processing is passed into control unit for gesture stability；PSD processing modules, for at
As the facula position angle information of processing unit acquisition handle simultaneously output position offset, angle appearance is used for control unit
State controls.
With reference to Fig. 4, the display module in described control unit passes over red for display information in real time processing unit
Outer image and position offset and angle；Slave computer communication module is used for the position offset and angle of information process unit
Pass to the host computer communication module of control unit；Host computer communication module, for receiving slave computer communication module information, and it is right
Pose adjustment module and slave computer communication module send instructions information；Pose adjustment module refers to for receiving host computer communication module
Information is enabled, pose adjustment is carried out.Obtain may be implemented the tracking of 100Hz by pose adjustment module tracks infrared target through actual measurement
Bandwidth, tracking accuracy≤10mrad, resolution ratio realize sub-micro radian.
Working principle of the present invention is as follows：
By the imaged system unit of infrared target obtain Same Scene near-infrared, in infrared and far infrared target information, and
By image and facula position and angle information transfer to information process unit, as long as by optics geometric knowledge it is found that infrared mesh
Mark not in one times of focal length of imaging system, when Infrared Targets light deflection minute angle, facula mass center can infrared camera at
Image planes move；The CCD processing modules of information process unit are after image filter is made an uproar, handled after background segment and centroid calculation
Infrared image and mobile front and back facula position offset size, can be obtained using the data processing method of angle calibration red
Outer target offset angle, while the PSD processing modules of information process unit are obtained also by the data processing method of angle calibration
Infrared target deviation angle；The infrared image and infrared target deviation angle obtained by information process unit passes through control unit
Display module carries out real-time display, while slave computer communication mould of the infrared target deviation angle through control unit passes to control soon
The host computer information module of unit；Host computer information module sends attitude regulating command and controls corresponding device to pose adjustment module
Part is adjusted, such as three-dimensional turntable or fast anti-mirror, by system alignment infrared target, completes pose adjustment, final realization is entire
System follows infrared target to carry out real-time tracking, aiming and detection.
Claims (8)
1. multispectral complex detection system, including imaging system unit, information process unit and control unit, it is characterised in that:
The imaging system unit, including near infrared camera, middle infrared camera, far infrared camera, position sensitive detector PSD, quickly
Speculum and 7 dry spectroscopes composition, all elements are placed in parallel as three rows, wherein：
First row is sequentially placed the first spectroscope, the second spectroscope, third spectroscope and position sensitive detector PSD from left to right,
Second row is sequentially placed fast mirror, the 4th spectroscope, the 5th spectroscope and near infrared camera from left to right,
Third row is sequentially placed far infrared camera, the 6th spectroscope, the 7th spectroscope and middle infrared camera from left to right,
Fast mirror is opposite with the second spectroscope position, and the 6th spectroscope is opposite with the 4th spectroscope position, the 7th spectroscope
It is opposite with the 5th spectroscope position,
The outside of all element entirety is covered with shell, and is set at the shell before the first spectroscope there are one thang-kng window；
Infrared Targets light enters the first spectroscope by thang-kng window, shines the second spectroscope and is divided into two-way a and b, wherein a all the way
Enter PSD through third spectroscope, another way b shines the 4th spectroscope through fast mirror and is further divided into two-way b1And b2, b all the way1It is logical
It crosses the 6th spectroscope and enters far infrared camera, another way b2By being further divided into two-way b after the 5th spectroscope21And b22, b all the way21Into
Enter near infrared camera, another way b22By infrared camera in entering after the 7th spectroscope, and ensure near infrared camera, in it is infrared
The spot center that camera, far infrared camera are formed is in imaging surface center, while ensureing the position angle letter of position sensitive detector PSD
Breath is zero.
After 2. system according to claim 1, wherein Infrared Targets light are by thang-kng window incidence, it is ensured that the quick detection in position
The position angle information of device PSD is zero, is by adjusting the opposite position of the second spectroscope, third spectroscope and quick detector PSD
It sets, height and angle are realized.
After 3. system according to claim 1, wherein Infrared Targets light are by thang-kng window incidence, it is ensured that in near-infrared
The spot center that camera, middle infrared camera, far infrared camera are formed is in imaging surface center, is to first pass through the 5th spectroscope of adjustment
With the relative position, height and angle of near infrared camera, then relative position, the height of the 7th spectroscope and middle infrared camera are adjusted
And angle, the relative position, height and angle of the 6th spectroscope and far infrared camera are finally adjusted to realize.
4. system according to claim 1, which is characterized in that the detecting band of near infrared camera is 0.9-1.7 μm, thang-kng
Window bore is >=30mm, pixel dimension ranging from 15-20mm, picture locating depth >=8.
5. system according to claim 1, which is characterized in that the detecting band of middle infrared camera is 2-5 μm, thang-kng window
Bore is >=30mm, pixel dimension ranging from 15-20mm, picture locating depth >=8.
6. system according to claim 1, which is characterized in that far infrared camera detecting band is 8-12 μm, thang-kng window
Bore is >=30mm, pixel dimension ranging from 15-20mm, picture locating depth >=8.
7. system according to claim 1, which is characterized in that information process unit includes：
CCD processing modules, for the infrared picture that image forming process unit obtains carry out filter make an uproar, background segment, centroid calculation simultaneously
Output position offset, angle；
PSD processing modules, the facula position angle information for being obtained to image forming process unit handle and output position is inclined
Shifting amount, angle.
8. system according to claim 1, which is characterized in that control unit includes：
Display module, the infrared image obtained for real-time display imaging system unit CCD camera and information process unit processing
Obtained position offset, angle；
Slave computer communication module, the host computer for the position offset of information process unit, angle to be passed to control unit
Communication module, and receive the host computer communications module instructions information from control unit；
Host computer communication module communicates mould for receiving slave computer communication module information, and to pose adjustment module and slave computer
Block sends instructions information；
Pose adjustment module carries out pose adjustment for receiving host computer communications module instructions information.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384336A (en) * | 2002-06-14 | 2002-12-11 | 浙江大学 | Digital signal processor for position sensing detector |
| CN101158590A (en) * | 2007-11-13 | 2008-04-09 | 长春理工大学 | Complete digitisation 4 quadrant detector detecting laser beam deflection angle device and method |
| JP2011038895A (en) * | 2009-08-11 | 2011-02-24 | Fujitsu Ltd | Film quality evaluation device and method of evaluating film quality |
| CN107741275A (en) * | 2017-10-26 | 2018-02-27 | 中国科学院地理科学与资源研究所 | Multispectral imaging system |
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2018
- 2018-04-26 CN CN201810385267.5A patent/CN108709640A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384336A (en) * | 2002-06-14 | 2002-12-11 | 浙江大学 | Digital signal processor for position sensing detector |
| CN101158590A (en) * | 2007-11-13 | 2008-04-09 | 长春理工大学 | Complete digitisation 4 quadrant detector detecting laser beam deflection angle device and method |
| JP2011038895A (en) * | 2009-08-11 | 2011-02-24 | Fujitsu Ltd | Film quality evaluation device and method of evaluating film quality |
| CN107741275A (en) * | 2017-10-26 | 2018-02-27 | 中国科学院地理科学与资源研究所 | Multispectral imaging system |
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Application publication date: 20181026 |