CN103826056B - Camera head and system - Google Patents
Camera head and system Download PDFInfo
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- CN103826056B CN103826056B CN201310539011.2A CN201310539011A CN103826056B CN 103826056 B CN103826056 B CN 103826056B CN 201310539011 A CN201310539011 A CN 201310539011A CN 103826056 B CN103826056 B CN 103826056B
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- image unit
- colour wheel
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- optical signal
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Abstract
The embodiment of the invention discloses a kind of apparatus and system for expanding camera head coverage, the camera head includes：Image unit, for obtaining the optical signal for receiving subject；Reflector element, positioned at the front of image unit, for the optical signal of subject is reflected into image unit by direct reflection；And sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication.According to embodiments of the present invention, the object of image unit side or rear can be presented on before image unit by reflector element by reflection, can be significantly expanded the coverage of camera head.
Description
Technical field
The present embodiments relate to video monitoring service field, and more particularly, to a kind of camera head and system.
Background technology
The video camera of existing video monitoring system mainly has gunlock, ball machine etc..The coverage of gunlock is typically in rifle
A piece of sector region in front of machine camera lens, in order to expand the coverage of gunlock, generally can be arranged on gunlock and can rotate
Head on, driven gunlock to rotate by head, or directly use ball machine.Due to the weight of video camera it is larger, gunlock or ball
The rotation of lens of machine generally needs the time of 3-5 seconds for one week, or even longer, although shooting so can be expanded to a certain extent
The monitoring range of machine, but when camera lens turns to second direction from first direction, first direction will certainly be monitored.Even if mirror
Head returns back to first direction from second direction again, and still resulting in first direction has the monitoring on the regular hour blank.And
Video monitoring generally needs continual implementation to some regions continuously to monitor, in some cases, this temporal monitoring
Although blank only more than ten seconds, remain unacceptable.
In order to overcome drawbacks described above, another scheme of prior art to arrange multiple gunlocks, mirror using in certain point position
Head points to different directions, so as to realize monitoring without dead angle for key area.Inventor has found, although the monitoring model of this mode
Noticeably greater than single gunlock is enclosed, but as multiple gunlocks will be arranged in single-point, the cost of equipment will certainly be caused to greatly improve.
The content of the invention
The embodiment of the present invention provides a kind of camera head and system, can obtain in the case where camera lens keep fixing
Obtain bigger coverage.
A kind of first aspect, there is provided camera head, including：
Image unit, for obtaining the optical signal for receiving subject；And
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；
Characterized in that, also including：
Reflector element, positioned at the front of image unit, for being reflected the optical signal of subject by direct reflection
Into the image unit.
In the first possible implementation of first aspect, the reflector element include two can be in Motor drive
The colour wheel of lower rotation, the first colour wheel turn clockwise, the second colour wheel rotate counterclockwise, and the angle of rotary shaft and vertical direction is distinguished
For positive and negative 30 degree, the surface of colour wheel is divided into the sector region that three angles are 120 degree, wherein the first sector region is reflective
Face, two other sector region are colourless transmission region, are rotated by two colour wheels, can be with reverse shot to the image unit
Front and both sides object.
In second possible implementation of first aspect, the reflector element includes a circle and can rotate
Colour wheel, colour wheel rotated under Motor drive, the diameter parallel of rotary shaft and image unit, and the surface of colour wheel is divided at least three
Individual angular sectors region, wherein the first and second sector regions be reflective surface, the 3rd sector region be colourless transmission region, first
The center of sector region is high, and edge is low；The edge of the second sector region is high, and center is low, by the rotation of colour wheel, three fan sections
Domain is alternately just to image unit so that image unit can be with the front of reverse shot to image unit and the object of both sides.
In the third possible implementation of first aspect, the reflector element is specially a plane mirror or convex surface
Mirror.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation, the reflection
The upper and lower ends of unit are respectively mounted stalloy, and permanent magnet is corresponding with the position of the stalloy of lower end, electric magnet and upper end
The position of stalloy is corresponding, and when electric magnet is in off-position, the stalloy of reflector element lower end is adsorbed by permanent magnet, instead
Unit is penetrated in first position；When electric magnet is in "on" position, the stalloy of reflector element upper end is adsorbed by electric magnet, instead
Penetrate unit the second position is rotated counterclockwise to from position A.
A kind of second aspect, there is provided video monitoring system, including：
Monitor supervision platform, for receiving the video data of camera head transmission.
Monitor terminal, for receiving and presenting the video data of monitor supervision platform transmission.
Camera head, for gathering video data and the video data of collection being sent flat to monitoring by transmission network
Platform；
Characterized in that, the camera head includes：
Image unit, for obtaining the optical signal for receiving subject；
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；And
Reflector element, positioned at the front of image unit, for being reflected the optical signal of subject by direct reflection
Into the image unit.
The reflector element described in the first possible implementation of second aspect include two can be in Motor drive
The colour wheel of lower rotation, the first colour wheel turn clockwise, the second colour wheel rotate counterclockwise, and the angle of rotary shaft and vertical direction is distinguished
For positive and negative 30 degree, the surface of colour wheel is divided into the sector region that three angles are 120 degree, wherein the first sector region is reflective
Face, two other sector region are colourless transmission region, are rotated by two colour wheels, can be with reverse shot to the image unit
Front and both sides object.
In second possible implementation of second aspect, the reflector element includes a circle and can rotate
Colour wheel, colour wheel rotated under Motor drive, the diameter parallel of rotary shaft and image unit, and the surface of colour wheel is divided at least three
Individual sector region, wherein the first and second sector regions are reflective surface, the 3rd sector region is colourless transmission region, and first is fan-shaped
The center in region is high, and edge is low；The edge of the second sector region is high, and center is low, and by the rotation of colour wheel, three sector regions are handed over
For just to image unit so that image unit can be with the front of reverse shot to image unit and the object of both sides.
In the third possible implementation of second aspect, the reflector element is specially a plane mirror or convex surface
Mirror.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation, the reflection
The upper and lower ends of unit are respectively mounted stalloy, and permanent magnet is corresponding with the position of the stalloy of lower end, electric magnet and upper end
The position of stalloy is corresponding, and when electric magnet is in off-position, the stalloy of reflector element lower end is adsorbed by permanent magnet, instead
Unit is penetrated in first position；When electric magnet is in "on" position, the stalloy of reflector element upper end is adsorbed by electric magnet, instead
Penetrate unit the second position is rotated counterclockwise to from first position.
The object of image unit side or rear can be presented by embodiments in accordance with the present invention, reflector element by reflecting
Before image unit, the coverage of camera head can be significantly expanded.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the system architecture schematic diagram of the embodiment of the present invention；
Fig. 2 is camera head schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the reflector element schematic diagram that the embodiment of the present invention one is provided；
Fig. 4 a-4c are the reflector element schematic diagrams that the embodiment of the present invention two is provided；
Fig. 5 is the schematic diagram of the colour wheel that the embodiment of the present invention two is provided；
Fig. 6 a-6c are the reflector element schematic diagrams that the embodiment of the present invention three is provided；
Fig. 7 is the schematic diagram of the colour wheel that the embodiment of the present invention three is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.Based on this
Embodiment in bright, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art
Example, belongs to the scope of protection of the invention.
It is video monitoring system configuration diagram provided in an embodiment of the present invention for Fig. 1, the video monitoring system includes：Take the photograph
As device 110, monitor supervision platform 120, monitor terminal 130, transmission network 140, wherein, camera head 110, monitor terminal 130 are equal
Communicated with monitor supervision platform 120 by transmission network 140.
The transmission network 140, can be specifically one kind in the Internet, LAN, wide area network, storage area network etc. or
Its combination, the mode of 120 access network of monitor supervision platform can be specifically Wired access mode, camera head 110, monitor terminal
The mode of 130 access networks can be specifically Wired access mode or wireless access way, wherein, Wired access mode includes leading to
The access way or the access way by optical fiber of netting twine are crossed, wireless access way includes WIFI（Such as IEEE802.11a,
IEEE802.11b, IEEE802.11g and/or IEEE802.11n）, GSM (EDGE), WCDMA, CDMA, TD-SCDMA, bluetooth,
The access ways such as LTE.
Monitor supervision platform 120, for receiving the video data of the transmission of camera head 110.
Monitor terminal 130, for receiving and presenting the video data of the transmission of monitor supervision platform 120.
Camera head 110, for gathering video data and the video data of collection being sent to prison by transmission network 140
Control platform 120.
As shown in Fig. 2 the camera head 110 is specifically included：Image unit 10, for obtaining the light for receiving subject
Signal；Reflector element 20, positioned at the front of image unit 10, for being reflected the optical signal of subject by direct reflection
Into image unit 10；And sensor 30, for the optical signal acquired in the image unit 10 is converted to the signal of telecommunication.
Embodiment one：
As shown in figure 3, reflector element 20 is specially a plane mirror, the size of plane mirror can be according to the tool of photographed scene
Body requires to determine.If it is intended to obtaining bigger coverage, reflector element 20 can also be a convex mirror.Reflector element 20
90 degree of central point rotate counterclockwise can be surrounded so that reflector element 20 is rotated to B location from location A.When reflector element is in A positions
When putting, image unit 10 can photograph region a by reflector element, and when reflector element is in B location, image unit 10 can be with
Region b is photographed by reflector element.
The rotation mode of reflector element 20 is as follows, and the upper and lower ends in the side of reflector element 20 are respectively mounted stalloy 24
With stalloy 22, permanent magnet 23 is corresponding with the position of the stalloy 22 of lower end, the position of electric magnet 25 and the stalloy 24 of upper end
Put corresponding.When electric magnet 25 is in off-position, the stalloy 22 of reflector element lower end is adsorbed by permanent magnet 23, and reflection is single
Unit is in position A；When electric magnet 25 is in "on" position, as the gravitation of electric magnet is much larger than the gravitation of permanent magnet 23, instead
The stalloy 24 for penetrating unit upper end is adsorbed by electric magnet 25, and reflector element 20 i.e. can be from 90 degree of position A rotate counterclockwise in place
Put B.
Embodiment two：
As depicted in figure 4 a-4 c, reflector element 20 includes two circular and rotatable colour wheels 201 and colour wheel 202, colour wheel
201 and colour wheel 202 rotate under the driving of motor 203 and motor 204 respectively, the angle of rotary shaft and vertical direction is just respectively
Minus 30 degree, concrete arrangement is as schemed.Wherein, to turn clockwise, colour wheel 202 is rotate counterclockwise to colour wheel 201.
The structure of colour wheel 201 and colour wheel 202 is as shown in figure 5, the surface of colour wheel 201 is divided into tri- angles of A1, A2 and A3
120 degree of sector region is, wherein sector region A1 is reflective surface, and sector region A2 and A3 are colourless transmission region.Colour wheel
201 and the rotation initial angle of colour wheel 202 stagger 60 degree, after installing by the direction of diagram, rotated with ω angular velocity vertically：
Such as Fig. 4 a, as ω t=0+360n °（N is positive integer）, the model of finding a view of the reflective surface of colour wheel 201 just to image unit 10
Enclose, upper left region S1 is shot by reflecting.
Such as Fig. 4 b, as+360n ° of ω t=120 °（N is positive integer）, the transmission region of colour wheel 201 is just to image unit 10
Viewfinder range, the reflective surface of colour wheel 202 shoot top-right region S2 by reflecting just to viewfinder range.
Such as Fig. 4 c ,+360n ° of ω t=240 °（N is positive integer）, the transmission region of colour wheel 201 and colour wheel 202 is just single to shooting
The viewfinder range of unit 10, image unit 10 can directly shoot the region S3 in front.
Above scheme can be seen that and be rotated by two colour wheels, can be with the front of reverse shot to image unit and both sides
Object, be significantly expanded the coverage of image unit.
Embodiment three：
As shown in fig. 6a-6c, reflector element 20 be a circular and rotatable colour wheel, drive of the colour wheel in motor 204
The diameter parallel of dynamic lower rotation, rotary shaft Y and image unit 10, concrete arrangement is as schemed.
The structure of colour wheel is as shown in fig. 7, the surface of colour wheel is divided into the sector that tri- angles of P1, P2 and P3 are 120 degree
Region, wherein sector region P1 and P2 be reflective surface, sector region P3 be colourless transmission region, cross section as shown in fig. 6a-6c,
The center of sector region P1 is high, and edge is low, and the gradient is minus 30 degree；The edge of sector region P2 is high, and center is low, and the gradient is 30 degree.
The embodiment of the present invention is illustrated as a example by positive and negative 30 degree, it is therefore apparent that those skilled in the art can basis
Being actually needed for photographed scene selects the reflecting surface of different gradient to combine, and to obtain different coverages, repeats no more.
Such as Fig. 6 a, as ω t=0+360n °（N is positive integer）, the model of finding a view of the reflective surface P1 of colour wheel just to image unit 10
Enclose, top-right region S2 is shot by reflecting.
Such as Fig. 6 b, as+360n ° of ω t=120 °（N is positive integer）, find a view models of the colour wheel reflective surface P2 just to image unit 10
Enclose, upper left region S1 is shot by reflecting.
Such as Fig. 6 c ,+360n ° of ω t=240 °（N is positive integer）, transmission region P3 just the finding a view to image unit 10 of colour wheel
Scope, image unit 10 can directly shoot the region S3 in front.
Colour wheel rotates a circle, and image unit 10 shoots 3 two field pictures, and 3 two field pictures are transmitted to not by transmission channel respectively
Same caching, so as to form the different video in 3 directions.If the rotating speed of colour wheel is N, the frame rate of image unit 10 is just
For 3N, that is to say, that colour wheel rotating speed is faster, the frame rate of image unit 10 is higher.
When colour wheel rotates at a high speed, the object that image unit 10 is photographed may when it is remote when it is near, current image unit
The focusing time is all hundreds of millisecond to several seconds, and focal length is difficult to adjustment in time, but can be using focusing image unit（As arrived calmly nothing
Limit is remote）, as this scheme is commonly used in monitoring field, therefore object distance is generally large, is solved by big focal length image unit.
Above scheme can be seen that two colors that the present embodiment three substitutes embodiment two above by the rotation of single colour wheel
Wheel rotation, equally with the front of reverse shot to image unit and the object of both sides, can expand the coverage of image unit.
Similar with embodiment three, those skilled in the art can increase the division numbers of the sector region of wheel surface,
4-6 region can be such as divided into, even more many, the gradient of each sector region can also be adjusted flexibly, by the rotation of colour wheel
Turn to obtain the shooting area combination of more direction.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, being capable of being implemented in combination in electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Each specific application can be used different methods to realize described function, but this realization it is not considered that exceeding
The scope of the present invention.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, which can be passed through
Its mode is realized.For example, device embodiment described above is only schematically, for example division of the unit, only
Only a kind of division of logic function, can have other dividing mode when actually realizing, such as multiple units or component can be tied
Close or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some interfaces, device or unit or logical
Letter connection, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can local to be located at one, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.
If the function is realized using in the form of SFU software functional unit and as independent production marketing or when using, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used so that a computer equipment including some instructions（Can be individual
People's computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.
And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory（ROM, Read-Only Memory）, random access memory deposits
Reservoir（RAM, Random Access Memory）, magnetic disc or CD etc. are various can be with the medium of store program codes.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (8)
1. a kind of camera head, including：
Image unit, for obtaining the optical signal for receiving subject；And
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；
Characterized in that, also including：
Reflector element, positioned at the front of image unit, for being reflected into the optical signal of subject by direct reflection
The image unit, the reflector element include the axis of the colour wheel that can be rotated under Motor drive, rotary shaft and image unit
Parallel, the surface of colour wheel is divided at least three sector regions, and by the rotation of colour wheel, three sector regions are alternately just to shooting
Unit so that the image unit can be with the object in the front and both sides of reverse shot to the image unit.
2. device as claimed in claim 1, it is characterised in that the colour wheel is circle, in three sector regions, first
It is reflective surface with the second sector region, the 3rd sector region is colourless transmission region, the center of first sector region is high, side
Edge is low；The edge of second sector region is high, and center is low.
3. a kind of camera head, including：
Image unit, for obtaining the optical signal for receiving subject；And
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；
Characterized in that, also including：
Reflector element, positioned at the front of image unit, for being reflected into the optical signal of subject by direct reflection
The image unit, the reflector element include the colour wheel that can be rotated under Motor drive, the colour wheel include the first colour wheel and
The rotary shaft of the second colour wheel, first colour wheel and the second colour wheel is respectively positive and negative 30 degree with the angle of vertical direction, colour wheel
Surface is divided at least three sector regions, and by the rotation of colour wheel, three sector regions are alternately just to image unit so that institute
Stating image unit can be with the object in the front and both sides of reverse shot to the image unit.
4. device as claimed in claim 3, it is characterised in that first colour wheel turns clockwise, and second colour wheel is inverse
Hour hands rotate, and three sector regions are 120 degree of sector region, wherein the first sector region is reflective surface, in addition two
Individual sector region is colourless transmission region.
5. a kind of video monitoring system, including：
Monitor supervision platform, for receiving the video data of camera head transmission；
Monitor terminal, for receiving and presenting the video data of monitor supervision platform transmission；
Camera head, for gathering video data and the video data of collection being sent to monitor supervision platform by transmission network；
Characterized in that, the camera head includes：
Image unit, for obtaining the optical signal for receiving subject；
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；And
Reflector element, positioned at the front of image unit, for being reflected into the optical signal of subject by direct reflection
The image unit, the reflector element include the axis of the colour wheel that can be rotated under Motor drive, rotary shaft and image unit
Parallel, the surface of colour wheel is divided at least three sector regions, and by the rotation of colour wheel, three sector regions are alternately just to shooting
Unit so that the image unit can be with the object in the front and both sides of reverse shot to the image unit.
6. system as claimed in claim 5, it is characterised in that the colour wheel is circle, in three sector regions, first
It is reflective surface with the second sector region, the 3rd sector region is colourless transmission region, the center of first sector region is high, side
Edge is low；The edge of second sector region is high, and center is low.
7. a kind of video monitoring system, including：
Monitor supervision platform, for receiving the video data of camera head transmission；
Monitor terminal, for receiving and presenting the video data of monitor supervision platform transmission；
Camera head, for gathering video data and the video data of collection being sent to monitor supervision platform by transmission network；
Characterized in that, the camera head includes：
Image unit, for obtaining the optical signal for receiving subject；
Sensor, for the optical signal acquired in the image unit is converted to the signal of telecommunication；And
Reflector element, positioned at the front of image unit, for being reflected into the optical signal of subject by direct reflection
The image unit, the reflector element include the colour wheel that can be rotated under Motor drive, the colour wheel include the first colour wheel and
The rotary shaft of the second colour wheel, first colour wheel and the second colour wheel is respectively positive and negative 30 degree with the angle of vertical direction, colour wheel
Surface is divided at least three sector regions, and by the rotation of colour wheel, three sector regions are alternately just to image unit so that institute
Stating image unit can be with the object in the front and both sides of reverse shot to the image unit.
8. system as claimed in claim 7, it is characterised in that first colour wheel turns clockwise, and second colour wheel is inverse
Hour hands rotate, and three sector regions are 120 degree of sector region, wherein the first sector region is reflective surface, in addition two
Individual sector region is colourless transmission region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539011.2A CN103826056B (en) | 2013-11-04 | 2013-11-04 | Camera head and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539011.2A CN103826056B (en) | 2013-11-04 | 2013-11-04 | Camera head and system |
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| CN103826056A CN103826056A (en) | 2014-05-28 |
| CN103826056B true CN103826056B (en) | 2017-04-05 |
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| CN201310539011.2A Active CN103826056B (en) | 2013-11-04 | 2013-11-04 | Camera head and system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9880447B2 (en) * | 2016-06-27 | 2018-01-30 | Google Llc | Camera module assembly with movable reflective elements |
| CN107454301A (en) * | 2017-09-27 | 2017-12-08 | 北京羿娲科技有限公司 | Camera device and method |
| CN109008251A (en) * | 2018-06-20 | 2018-12-18 | 合肥美的智能科技有限公司 | Article placing cabinet |
| CN111077915B (en) * | 2019-12-27 | 2021-04-06 | 成都英飞睿技术有限公司 | Panoramic monitoring control method, device and equipment and readable storage medium |
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| CN2731484Y (en) * | 2004-08-07 | 2005-10-05 | 鸿富锦精密工业（深圳）有限公司 | Module of digital camera |
| JP2006235071A (en) * | 2005-02-23 | 2006-09-07 | Fuji Photo Film Co Ltd | Imaging apparatus |
| CN1968405A (en) * | 2005-11-14 | 2007-05-23 | 耿征 | Wide-angle or super-wide-angle omni-directional visual monitoring method and system |
| CN201042040Y (en) * | 2007-06-14 | 2008-03-26 | 上海市闵行中学 | A camera monitoring bidirectional traffic of road |
| CN201335933Y (en) * | 2009-01-12 | 2009-10-28 | 华晶科技股份有限公司 | Image reading device |
| CN102609152B (en) * | 2012-01-22 | 2015-02-04 | 南京先能光电科技有限公司 | Large-field-angle detection image acquisition method for electronic white board and device |
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| US7176967B1 (en) * | 2001-01-24 | 2007-02-13 | Dalsa, Inc. | Method and apparatus for a two-chip cinematography camera |
| CN203136024U (en) * | 2013-04-11 | 2013-08-14 | 广东欧珀移动通信有限公司 | A camera structure of a mobile terminal |
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