CN109164590A - A kind of system of partition window monitoring identification - Google Patents
A kind of system of partition window monitoring identification Download PDFInfo
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- CN109164590A CN109164590A CN201811107049.1A CN201811107049A CN109164590A CN 109164590 A CN109164590 A CN 109164590A CN 201811107049 A CN201811107049 A CN 201811107049A CN 109164590 A CN109164590 A CN 109164590A
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- polarizer
- light
- partition window
- monitoring identification
- image
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The embodiment of the invention discloses a kind of systems of partition window monitoring identification.The partition window monitors that identifying system includes preceding objective lens, for the multiple eccentric mirrors and polarizer of branch will to be carried out from the emitting light path of preceding objective lens, for receiving and detecting the emergent light of multiple eccentric mirrors and polarizer to form the light-field camera of multiple image, light barrier with the emitting light path on the receiving plane of light-field camera and for limiting multiple eccentric mirrors and polarizer is set, for analyzing and judging the image processor of the multiple image.The system of the monitoring identification of partition window provided by the embodiment of the present invention has the advantages that versatility is good, impurity elimination light effect is well.
Description
Technical field
The present invention relates to the technical fields of monitoring identification, and in particular to it is a kind of being capable of the partition window system that carries out monitoring identification.
Background technique
In monitoring identification field, target can be located at after glass (window) in many cases, specific such as intelligent transportation application
In the recognition of face through vehicle window.In intelligent transportation application, since sunlight passes through vehicle by vehicle window reflection, periphery object
The imaging of window reflection can be received by camera together with target image, and therefore, the accuracy of targeted surveillance identification is generally relatively low.
It wherein, is the main problem for influencing the accuracy of targeted surveillance identification the problem of widow reflections.
Currently, solving the problems, such as that widow reflections mainly use later image to handle.But the continuous variation meeting of monitoring scene
Image processing algorithm is caused to be difficult to obtain general good result.Further, excessive image procossing can generate falseness instead
Information influences the judgement of operator.
Therefore, reflective window and aiming at the problem that influence monitoring recognition effect, it is necessary to propose that a kind of versatility is good, impurity elimination
The good partition window of light effect monitors identifying system.
Summary of the invention
Reflective for existing window and influence monitoring recognition effect to ask, the embodiment of the present invention proposes a kind of partition window monitoring
Identifying system.The partition window monitoring identifying system that the embodiment of the present invention is proposed has the advantages that versatility is good, impurity elimination light effect is good.
A kind of concrete scheme of partition window monitoring system of target is as follows after window for identification for this: a kind of partition window monitoring identification
System, comprising: preceding objective lens；Multiple eccentric mirrors and polarizer, for will be carried out from the emitting light path of the preceding objective lens
Branch；Light-field camera, for receiving and detecting the emergent light of the multiple eccentric mirror and polarizer to form multiple image；
On the receiving plane of light barrier, setting and the light-field camera, for limiting the emergent light of the multiple eccentric mirror and polarizer
Road；Image processor, for analyzing and judging the multiple image.
Preferably, the multiple eccentric mirror and polarizer include four eccentric mirrors and four polarizers, a bias
Microscope group corresponds to a polarizer.
Preferably, the direction that is polarized of four polarizers is respectively 0 degree, 45 degree, 90 degree and 135 degree.
Preferably, the preceding objective lens using hereby tile structure camera lens.
Preferably, the single eccentric mirror and corresponding single polarizer are fixed in frame, multiple eccentric mirrors and partially
Vibration element is fixed in lens barrel.
Preferably, the eccentric mirror uses the camera lens of Cook three-chip type structure.
Preferably, described image processor is chosen from the multiple image according to decay window reflected light effectiveness indicator
The smallest image is influenced by window veiling glare.
Preferably, the light-field camera carries out refocusing to the multiple image, and focus position is positioned to window
Target position.
Preferably, the light barrier uses cross type light barrier.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the present invention provides a kind of partition window monitoring system, which, which uses, polarizes the veiling glare method that disappears,
Inhibit to retain target optical information to greatest extent while veiling glare, effectively promotes the contrast of target and background.Further, should
Partition window monitoring system by the way of point aperture simultaneously obtain several polarization state images, without according to different scenes to polarizing film into
Row rotation is adjusted.Further, which is first taken pictures the function of focusing afterwards using light-field camera, recovers observation mesh
The burnt image of the standard of cursor position, makes window reflected image defocus, to be effectively reduced window reflected image on camera focal plane
Illumination, thus the interference for inhibiting window reflective.Further, inhibit window is reflective to do in the partition window monitoring system physical angle
It disturbs, does not generate deceptive information caused by image processing algorithm, obtained image more objective reality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the partition window monitoring system provided in the embodiment of the present invention.
Numbering in the drawing explanation:
100, partition window monitoring system 1, preceding objective lens 2, the first eccentric mirror
3, the second eccentric mirror 4, third eccentric mirror 5, the 4th eccentric mirror
6, the first polarizer 7, the second polarizer 8, third polarizer
9, the 4th polarizer 10, light barrier 11, light-field camera
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
As shown in Figure 1, a kind of structural schematic diagram of the partition window monitoring system provided in the embodiment of the present invention.The present invention is implemented
A kind of system 100 of the monitoring identification of partition window provided by example include: before objective lens 1, for will be from the emitting light path of preceding objective lens 1
The multiple eccentric mirrors and polarizer for carrying out branch, for receive and detect the emergent lights of multiple eccentric mirrors and polarizer to
The light-field camera 11 of multiple image is formed, is arranged on the receiving plane with light-field camera 11 and for limiting multiple eccentric mirrors and polarization
The light barrier 10 of the emitting light path of element, for analyzing and judging the image processor (not shown) of the multiple image.
With continued reference to Fig. 1, eccentric microscope group and polarizer include four eccentric mirrors and four polarization members in this embodiment
Part, the corresponding polarizer of an eccentric mirror.Eccentric mirror group is respectively the first eccentric mirror 2, the second eccentric mirror 3, third bias
Mirror 4 and the 4th eccentric mirror 5.Four polarizers are respectively the first polarizer 6, the second polarizer 7, third polarizer 8
With the 4th polarizer 9.The direction that is polarized of four polarizers is respectively 0 degree, 45 degree, 90 degree and 135 degree.In the embodiment
In, the first polarizer 6 be polarized direction be 0 degree, the second polarizer 7 be polarized direction be 45 degree, third polarizer 8
It is polarized that direction is 90 degree, the direction that is polarized of the 4th polarizer 9 is 135 degree.In other embodiments, it is polarized the specific degree in direction
Several and with each polarizer corresponding relationship, which can also make, to be changed.
Single eccentric mirror and its corresponding single polarizer are fixed in frame, then will be had been secured to more in frame
A eccentric mirror and polarizer are fixed in lens barrel.When installing multiple eccentric mirrors and polarizer, four bias of strict control
The optical axis of mirror and the relative position of primary optical axis.Each eccentric mirror uses mutually isostructural eccentric mirror.In this embodiment, eccentric
Microscope group is limited to the feature that aperture is small and visual field is big, and therefore, each eccentric mirror uses off-axis image to control preferable Cook three pieces
The camera lens of formula structure, effectively reduces senior aberration.
In this embodiment, the feature of preceding objective lens is that aperture is big and visual field is small, and therefore, preceding objective lens 1 are using hereby watt
The camera lens of structure.
Due in this embodiment, four channel of polarization share a detector, are imaged between four-way to eliminate
It interferes with each other, light barrier 10 is devised between image planes.Preferably, as shown in Figure 1, light barrier 10 is light-blocking using cross type
Plate.
Four sub-aperture light beams are divided into after eccentric microscope group by the incident target beam of preceding objective lens 1, finally
The different location being imaged on 11 focal plane of light-field camera obtains the image of 0 °, 45 °, 90 °, 135 ° four polarization direction.According to inclined
Light of reflection characteristic, the sun or the external world's scene of shaking by window reflection is partial poolarized light.When the direction that is polarized of polarizer is hung down
It, can substantially decay window reflected light directly when the polarization direction of reflected light.Image processor is according to decay window reflecting effect
Fruit index, choosing from four width images is influenced the smallest image by window veiling glare, that is, filters out decay window reflected light effect most
Good image.In order to further enhance the inhibitory effect to window reflected light, light-field camera 11 carries out refocusing to image, will be quasi-
Burnt position navigates in the target after window, and the image of the sun or extraneous scene by window reflection generates defocus blur at this time,
And the target imaging of required observation is clear, completes and further suppresses to window reflection veiling glare.
In this embodiment, polarisation microscope group and polarizer are using four.In other embodiments, art technology
Personnel can also different according to demand or other indexs, the quantity of polariscope and polarizer is adaptively changed, such as three
It is a, five etc..Polarizer is polarized direction and can also be arranged to the different directions that is polarized according to demand, and details are not described herein again.
Partition window monitoring system provided in an embodiment of the present invention, which uses, polarizes the veiling glare method that disappears, maximum while inhibiting veiling glare
Limit retains target optical information, effectively promotes the contrast of target and background.
Partition window monitoring system provided in an embodiment of the present invention obtains several polarization state images simultaneously by the way of point aperture,
Without carrying out rotation adjusting to polarizing film according to different scenes.
Partition window monitoring system provided in an embodiment of the present invention is first taken pictures the function of focusing afterwards using light-field camera, recovers sight
The burnt image of standard for surveying target position, makes window reflected image defocus, to be effectively reduced window reflected image in camera focal plane
On illumination, thus the interference for inhibiting window reflective.
The interference for inhibiting window reflective in partition window monitoring system physical angle provided in an embodiment of the present invention, does not generate image
Deceptive information caused by Processing Algorithm, obtained image more objective reality.
Partition window monitoring identifying system provided in an embodiment of the present invention is not necessarily to adjust polarizer in real time with environmental change
Be polarized angle, do not influenced by external environment variation, and the function of focusing afterwards of first being taken pictures using light-field camera, can be at any time in thing
Refocusing is carried out to required observed object afterwards, the position by observed object apart from window and target speed are not influenced.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of system of partition window monitoring identification, which is characterized in that the system comprises:
Preceding objective lens；
Multiple eccentric mirrors and polarizer, for branch will to be carried out from the emitting light path of the preceding objective lens；
Light-field camera, for receiving and detecting the emergent light of the multiple eccentric mirror and polarizer to form multiple image；
Light barrier, setting on the receiving plane of the light-field camera, for limiting going out for the multiple eccentric mirror and polarizer
Penetrate optical path；
Image processor, for analyzing and judging the multiple image.
2. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the multiple eccentric mirror and partially
The element that shakes includes four eccentric mirrors and four polarizers, the corresponding polarizer of an eccentric mirror.
3. a kind of system of partition window monitoring identification according to claim 2, which is characterized in that four polarizers
Being polarized direction is respectively 0 degree, 45 degree, 90 degree and 135 degree.
4. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the preceding objective lens use
The hereby camera lens of tile structure.
5. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the single eccentric mirror and phase
The single polarizer answered is fixed in frame, and multiple eccentric mirrors and polarizer are fixed in lens barrel.
6. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the eccentric mirror uses Cook
The camera lens of three-chip type structure.
7. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that described image processor according to
Decay window reflected light effectiveness indicator, choosing from the multiple image is influenced the smallest image by window veiling glare.
8. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the light-field camera is to described
Multiple image carries out refocusing, and focus position is positioned to the target position to window.
9. a kind of system of partition window monitoring identification according to claim 1, which is characterized in that the light barrier uses cross
Intersection type light barrier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811107049.1A CN109164590A (en) | 2018-09-21 | 2018-09-21 | A kind of system of partition window monitoring identification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811107049.1A CN109164590A (en) | 2018-09-21 | 2018-09-21 | A kind of system of partition window monitoring identification |
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| CN201811107049.1A Pending CN109164590A (en) | 2018-09-21 | 2018-09-21 | A kind of system of partition window monitoring identification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184886A1 (en) * | 2020-03-20 | 2021-09-23 | 浙江宇视科技有限公司 | Vehicle monitoring method and monitoring system |
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| CN104823096A (en) * | 2012-11-29 | 2015-08-05 | 西铁城控股株式会社 | Light modulation element |
| CN106802184A (en) * | 2017-02-22 | 2017-06-06 | 西安交通大学 | The fast compact noise immunity type optical field imaging full-polarization spectrum detection device of illuminated and method |
| CN108463992A (en) * | 2016-01-13 | 2018-08-28 | 弗劳恩霍夫应用研究促进协会 | Multiple aperture imaging device, imaging system and the method for detecting target area |
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| CN102265596A (en) * | 2008-12-22 | 2011-11-30 | 伊斯曼柯达公司 | Camera with rotating polarizing filter |
| CN102680101A (en) * | 2012-05-18 | 2012-09-19 | 南京理工大学 | High-light-spectrum full-polarization detection device for interference light field imaging |
| CN104823096A (en) * | 2012-11-29 | 2015-08-05 | 西铁城控股株式会社 | Light modulation element |
| CN103063303A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Spectrum polarization detection device and method for synchronous polarization modulation interference imaging |
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Application publication date: 20190108 |