CN109905585A - A kind of rotary-type underwater polarization camera - Google Patents
A kind of rotary-type underwater polarization camera Download PDFInfo
- Publication number
- CN109905585A CN109905585A CN201910262164.4A CN201910262164A CN109905585A CN 109905585 A CN109905585 A CN 109905585A CN 201910262164 A CN201910262164 A CN 201910262164A CN 109905585 A CN109905585 A CN 109905585A
- Authority
- CN
- China
- Prior art keywords
- polarization
- polarizing film
- rotary
- module
- type underwater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a kind of rotary-type underwater polarization camera, lighting module, imaging unit, polarization module, control unit and the power module being mounted on including sealed compartment and by internal stent in sealed compartment；The lighting module, imaging unit, polarization module are connected with control unit, and power module provides operating voltage for entire rotary-type underwater polarization camera；Wherein, for the lighting module for illuminating object, incident light is carried out polarization manipulation by the polarization module, keeps the light polarization direction being irradiated on imaging unit consistent；The imaging unit carries out polarised light imaging to object.Structure of the invention is reasonable, easy to operate, can quickly take the polarization image of immersed body.
Description
Technical field
The present invention relates to a kind of underwater polarization information measuring devices, more particularly to a kind of rotary-type underwater polarization camera.
Background technique
Polarization information is a kind of important information that light is included, and light can be in process different objects reflection rear polarizer information
Change, therefore body surface reflection, scattered information can effectively be understood by the polarization photo of shooting object, imaging can be improved
Detectivity.
As the mankind deepen continuously to ocean research, people also have higher requirement to Underwater Imaging, but due to
Adrift various fine particles can cause biggish scattering to light in water body, in addition absorption of the water body to light, and light energy is in water
Decaying rapidly, makes Underwater Imaging fuzzy effect occur, and contrast is low.If underwater imaging system has underwater light source, water body
Back scattering can greatly aggravate atomizating phenomenon, this makes people that can not obtain clearly underwater picture.Therefore object is utilized
Polarization information is that one kind extremely has promising detection method to obtain polarization image to increase picture contrast.
Summary of the invention
Aiming at the shortcomings in the prior art, it the present invention provides a kind of rotary-type underwater polarization camera, is installed by rotation
There is the polarizing film runner of different polarization piece to obtain the polarization photo of object, is realized in water in a manner of a kind of low cost to inclined
The acquisition and processing for information of shaking.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions: a kind of rotary-type underwater inclined
Shake camera, lighting module, the imaging unit, polarization module, control being mounted in sealed compartment including sealed compartment and by internal stent
Unit and power module processed；The lighting module, imaging unit, polarization module are connected with control unit, and power module is whole
A rotary-type underwater polarization camera provides operating voltage；Wherein, the lighting module is for illuminating object, the polarization module
Incident light is subjected to polarization manipulation, keeps the light polarization direction being irradiated on imaging unit consistent；The imaging unit is to object
Carry out polarised light imaging.
Further, the polarization module includes polarizing film, polarizing film runner, wheel drive means；The polarizing film is embedding
Enter on polarizing film runner；The polarizing film runner is the gear with polarizing film mounting groove；The wheel drive means pass through
Gear rotates the movement to drive polarizing film runner.
Further, there are three polarizing film mounting grooves altogether for the polarizing film runner, are respectively arranged with and are used for by each mounting groove
The position sensor of detecting polarization piece roller position；Three polarizing film mounting grooves are separately installed with 0 ° of linear polarizer, 45 ° of lines
Polarizing film, 90 ° of linear polarizers.
Further, the imaging unit includes imaging microscope group and the camera for being sequentially connected and being arranged in same optical axis；
The polarizing film is arranged among imaging microscope group and camera, and is located in same optical axis with camera.
Further, the imaging microscope group includes Zoom optic lens or long reach image-forming objective lens, and the optics becomes
The optical magnification of zoom lens or long reach object lens is greater than 2 times.
Further, the lighting module includes ring support and LED combination array；The ring support and imaging microscope group
Coaxially and it is fixed in internal stent；The LED array includes multiple independent LED light and all LED light by even circumferential
It is mounted in ring support；Control unit controls the brightness of illumination by opening or closing certain LED light in LED array.
Further, described control unit includes microcomputer, and microcomputer is filled with camera and runner driving respectively
It sets connected, sends turn signal to wheel drive means and roller position is obtained by the position sensor on polarizing film runner,
Photographing signals are sent to camera to obtain one group of polarization image of target object.
Further, described control unit further includes transmitting terminal optical transmitter and receiver, and microcomputer will be corresponding to picture and picture
Polarization angle information host computer is sent to by transmitting terminal optical transmitter and receiver.
Further, the transmitting terminal optical transmitter and receiver is communicated by underwater optoelectronic composite cable with host computer.
Further, the sealed compartment mainly by cavity, be mounted on the drive end bearing bracket of cavity front end and be mounted on cavity rear end
Rear end cap composition, realize that static seal, drive end bearing bracket are equipped with one block of transparent pressure-resistant glass by O-ring, rear end cap installs one
Underwater electrical connector, the underwater electrical connector is for realizing signal transmission or power transmission with external inside sealed compartment.
Compared with the existing technology, beneficial effects of the present invention are as follows:
The present invention switches the polarizing film before camera using polarizing film runner, can be in the case where not increasing camera quantity
The polarization image for obtaining different directions avoids the low problem of picture contrast caused by being divided, it can be achieved that immersed body reflects
The calculating of I, Q, U component of the stokes component of light, is suitble to underwater low light environment；
The present invention provides underwater lighting using ring-shaped LED array, and illumination light field focuses on imaging region, and LED luminance
It is adjustable, it can effectively avoid the too strong caused blurring of photos problem of illumination；
The configuration of the present invention is simple lays conveniently, can obtain the polarization information of immersed body faster, meet actual demand.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is integrated connection block diagram of the invention；
In figure, sealed compartment 1, internal stent 2, polarizing film runner 3, control unit 4, lighting module 5, imaging microscope group 6, polarization
Piece 7, wheel drive means 8, camera 9, power module 10.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the present invention provides a kind of rotary-type underwater polarization camera, including sealed compartment 1 and pass through internal stent 2
Lighting module 5, imaging unit, polarization module, control unit 4 and the power module 10 being mounted in sealed compartment 1；The illumination mould
Block 5, imaging unit, polarization module are connected with control unit 4, and power module 10 provides for entire rotary-type underwater polarization camera
Operating voltage；Wherein, the lighting module 5 provides auxiliary in low light environment under water for illuminating object for polarization imaging
Illumination；Incident light is carried out polarization manipulation by the polarization module, keeps the light polarization direction being irradiated on imaging unit consistent；It is described
Imaging unit carries out polarised light imaging to object.
Further, the polarization module includes polarizing film 7, polarizing film runner 3, wheel drive means 8；The polarizing film
7 are embedded on polarizing film runner 3；The polarizing film runner 3 is the gear with polarizing film mounting groove；The wheel drive means
8 drive the movement of polarizing film runner 3 by gear rotation.
Further, there are three polarizing film mounting grooves altogether for the polarizing film runner 3, and position sensor includes anti-dazzling screen and light
Electric switch is respectively arranged with anti-dazzling screen by each mounting groove；The anti-dazzling screen is by blocking two light being mounted in internal stent 2
Electric switch indicates the position of polarizing film runner 3；The optoelectronic switch is connected with control unit 4, and control unit 4 is by looking into
The state of two optoelectronic switches is ask to obtain the location information of filter wheel；Three polarizing film mounting grooves are separately installed with 0 ° of line
Polarizing film, 45 ° of linear polarizers, 90 ° of linear polarizers.The movement that polarizing film runner 3 is driven by gear rotation makes different inclined
Vibration piece is on 9 optical axis of phase to obtain different polarization images.
Further, the wheel drive means 8 include a stepper motor and the tooth being mounted on stepping motor rotating shaft
Wheel, the gear are meshed with polarizing film runner 3；The stepper motor is controlled by control unit 4, under the control of control unit 4
Rotatory polarization piece runner 3 is that optical filter is among optical path to suitable position.
Further, the imaging unit includes imaging microscope group 6 and the camera for being sequentially connected and being arranged in same optical axis
9；The polarizing film is arranged among imaging microscope group 6 and camera 9, and is located in same optical axis with camera 9.
Further, the imaging microscope group 6 includes Zoom optic lens or long reach image-forming objective lens, and the optics becomes
The optical magnification of zoom lens or long reach object lens is greater than 2 times.
Further, the lighting module 5 includes ring support and LED combination array；The ring support and imaging lens
Group 6 is coaxial and is fixed in internal stent 2；The LED array includes multiple independent LED light and all LED light by circumference
Uniformly it is mounted in ring support；Control unit 4 controls the bright of illumination by opening or closing in LED array certain LED light
Degree.
Further, described control unit 4 includes microcomputer, and microcomputer drives with camera 9 and runner respectively
Device 8 is connected, and sends turn signal to wheel drive means 8 and obtains runner by the position sensor on polarizing film runner 3
Position, Xiang Xiangji 9 send photographing signals to obtain one group of polarization image of target object.
Further, described control unit 4 further includes transmitting terminal optical transmitter and receiver, and microcomputer will be corresponding to picture and picture
Polarization angle information host computer is sent to by transmitting terminal optical transmitter and receiver.
Further, the transmitting terminal optical transmitter and receiver is communicated by underwater optoelectronic composite cable with host computer.
Further, the sealed compartment 1 by cavity, be mounted on the drive end bearing bracket of cavity front end and be mounted on cavity rear end after
End cap composition, realizes static seal by O-ring；Drive end bearing bracket is equipped with one piece of polarization information to light and interferes lesser transparent pressure resistance
Glass, rear end cap install a underwater electrical connector, and the underwater electrical connector is for realizing signal transmission with external inside sealed compartment
Or power transmission.
In the present embodiment camera 9 can use Imax Corp., Daheng MER-1220-9GM model product, but be not limited to from；
Polarizing film 7 can use Daheng's photoelectricity company GCL-05 model product, but be not limited to from；Microcomputer can use
The product of COMMELL company LP-175 model, but be not limited to from.
The course of work of the invention is as follows:
(1) rotary-type underwater polarization camera is arranged near object, host computer sends shooting order to rotary-type water
The control unit 6 of lower polarization camera；
(2) control unit 6 obtains polarizing film by checking the state for two optoelectronic switches being mounted in internal stent 2
The location information of runner 3；
(3) control unit 6 rotates polarizing film runner, 0 ° of linear polarizer is placed in phase by driving wheel drive means 8
On machine optical axis, when polarizing film in place after, control camera obtain object 0 ° of linear polarization image；
(4) 45 °, 90 ° of linear polarizations of object are obtained under the control of control unit 6 with same method in step (3)
Image；
(5) three images and corresponding polarization angle information are integrated into a data packet and are sent to by control unit 6
Position machine；
(6) host computer obtains I, Q, U tri- of Stokes Vector by calculating after having received a complete data packet
A component:
I=I_0+I_90；
Q=I_0-I_90；
U=2I_45- (I_0+I_90)
Wherein I_0 is 0 ° of linear polarization image, and I_45 is 45 ° of linear polarization images, and I_90 is 90 ° of linear polarization images.
The foregoing is only a preferred embodiment of the present invention, those skilled in the art think, with skill
The development of art can realize basic conception of the invention in a number of different ways, and therefore, the present invention and embodiment are unlimited
In example discussed above.Anyone skilled in the art within the technical scope of the present disclosure, can be easily
The change or replacement expected should be all included within the scope of the present invention, and protection scope of the present invention should be with right
Subject to the protection scope of claim.
Claims (10)
1. a kind of rotary-type underwater polarization camera, which is characterized in that be mounted on including sealed compartment (1) and by internal stent (2)
Lighting module (5), imaging unit, polarization module, control unit (4) and power module (10) in sealed compartment (1) etc.；The photograph
Bright module (5), imaging unit, polarization module are connected with control unit (4), and power module (10) is entire rotary-type underwater inclined
The camera that shakes provides operating voltage；Wherein, the lighting module (5) is for illuminating object, the polarization module by incident light into
Row polarization manipulation keeps the light polarization direction being irradiated on imaging unit consistent；The imaging unit carries out polarised light to object
Imaging.
2. rotary-type underwater polarization camera according to claim 1, which is characterized in that the polarization module includes polarizing film
(7), polarizing film runner (3), wheel drive means (8)；The polarizing film (7) is embedded on polarizing film runner (3)；The polarization
Piece runner (3) is the gear with polarizing film mounting groove；The wheel drive means (8) drive polarizing film by gear rotation
The movement of runner (3).
3. rotary-type underwater polarization camera according to claim 2, which is characterized in that the polarizing film runner (3) is shared
Three polarizing film mounting grooves have the position sensor for detecting polarization piece roller position by each mounting groove；Described three
A polarizing film mounting groove is separately installed with 0 ° of linear polarizer, 45 ° of linear polarizers, 90 ° of linear polarizers.
4. rotary-type underwater polarization camera according to claim 3, which is characterized in that the imaging unit includes successively connecting
It connects and is arranged in the imaging microscope group (6) in same optical axis and camera (9)；The polarizing film is arranged in imaging microscope group (6) and camera
(9) intermediate, and be located in same optical axis with camera (9).
5. rotary-type underwater polarization camera according to claim 4, which is characterized in that the imaging microscope group (6) includes light
Learn zoom lens or long reach image-forming objective lens, the optical magnification of the Zoom optic lens or long reach object lens
Greater than 2 times.
6. rotary-type underwater polarization camera according to claim 5, which is characterized in that the lighting module (5) includes ring
Shape bracket and LED combination array；The ring support is coaxial with imaging microscope group (6) and is fixed on internal stent (2)；It is described
LED array includes multiple independent LED light and all LED light are mounted in ring support by even circumferential；Control unit (4)
The brightness of illumination is controlled by opening or closing certain LED light in LED array.
7. rotary-type underwater polarization camera according to claim 6, which is characterized in that described control unit (4) includes micro-
Type industrial personal computer, microcomputer are connected with camera (9) and wheel drive means (8) respectively, send and turn to wheel drive means (8)
Dynamic signal simultaneously obtains roller position by the position sensor on polarizing film runner (3), and Xiang Xiangji (9) sends photographing signals to obtain
Obtain one group of polarization image of target object.
8. rotary-type underwater polarization camera according to claim 7, which is characterized in that described control unit (4) further includes
Polarization angle information corresponding to picture and picture is sent to by transmitting terminal optical transmitter and receiver, microcomputer by transmitting terminal optical transmitter and receiver
Host computer.
9. rotary-type underwater polarization camera according to claim 8, which is characterized in that the transmitting terminal optical transmitter and receiver passes through water
Lower optoelectronic composite cable is communicated with host computer.
10. rotary-type underwater polarization camera according to claim 9, which is characterized in that the sealed compartment (1) is mainly by chamber
Body, the drive end bearing bracket for being mounted on cavity front end and the rear end cap for being mounted on cavity rear end composition realize static seal by O-ring, preceding
End cap is equipped with one block of transparent pressure-resistant glass, and rear end cap installs a underwater electrical connector, and the underwater electrical connector is used for sealed compartment
It is internal to realize signal transmission or power transmission with external.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262164.4A CN109905585A (en) | 2019-04-02 | 2019-04-02 | A kind of rotary-type underwater polarization camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262164.4A CN109905585A (en) | 2019-04-02 | 2019-04-02 | A kind of rotary-type underwater polarization camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109905585A true CN109905585A (en) | 2019-06-18 |
Family
ID=66954361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910262164.4A Pending CN109905585A (en) | 2019-04-02 | 2019-04-02 | A kind of rotary-type underwater polarization camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109905585A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111246074A (en) * | 2020-03-30 | 2020-06-05 | Oppo广东移动通信有限公司 | Camera assembly, control method, electronic device and storage medium |
| CN111818251A (en) * | 2020-08-12 | 2020-10-23 | 中国海洋大学 | Rotary polarization range gating camera device |
| CN114324185A (en) * | 2022-01-04 | 2022-04-12 | 浙江大学 | Underwater polarization detection device based on Stokes vector |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070274604A1 (en) * | 2004-02-13 | 2007-11-29 | Yoav Schechner | Enhanced Underwater Imaging |
| CN203827436U (en) * | 2014-03-26 | 2014-09-10 | 河海大学 | Bionic underwater polarization optic information acquisition imaging instrument |
| CN104052967A (en) * | 2014-06-04 | 2014-09-17 | 河海大学 | Intelligent system for acquiring underwater polarization target depth map and method thereof |
| US20150219552A1 (en) * | 2014-02-06 | 2015-08-06 | Panasonic Intellectual Property Management Co., Ltd. | Image processing apparatus |
| CN204948252U (en) * | 2015-09-15 | 2016-01-06 | 河海大学 | The rotary polarization information acquisition device of probe |
| CN105572856A (en) * | 2016-03-04 | 2016-05-11 | 中国人民解放军海军潜艇学院 | Virtual periscope and production method and application thereof |
| CN206378636U (en) * | 2017-01-16 | 2017-08-04 | 浙江大学 | The common light path overall view ring belt optical imaging device of active polarization targets improvement |
| CN107340546A (en) * | 2017-07-24 | 2017-11-10 | 南京信息工程大学 | A kind of undersea detection divides the double CCD real-time polarizations imaging devices in aperture and method |
| CN208424528U (en) * | 2017-12-27 | 2019-01-22 | 大连海事大学 | High definition underwater camera |
| CN109443535A (en) * | 2018-10-30 | 2019-03-08 | 浙江大学 | A kind of underwater microspectrum imaging device and method based on fast illuminated spectrum camera |
| CN209710191U (en) * | 2019-04-02 | 2019-11-29 | 浙江大学 | Rotary-type underwater polarization camera |
-
2019
- 2019-04-02 CN CN201910262164.4A patent/CN109905585A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070274604A1 (en) * | 2004-02-13 | 2007-11-29 | Yoav Schechner | Enhanced Underwater Imaging |
| US20150219552A1 (en) * | 2014-02-06 | 2015-08-06 | Panasonic Intellectual Property Management Co., Ltd. | Image processing apparatus |
| CN203827436U (en) * | 2014-03-26 | 2014-09-10 | 河海大学 | Bionic underwater polarization optic information acquisition imaging instrument |
| CN104052967A (en) * | 2014-06-04 | 2014-09-17 | 河海大学 | Intelligent system for acquiring underwater polarization target depth map and method thereof |
| CN204948252U (en) * | 2015-09-15 | 2016-01-06 | 河海大学 | The rotary polarization information acquisition device of probe |
| CN105572856A (en) * | 2016-03-04 | 2016-05-11 | 中国人民解放军海军潜艇学院 | Virtual periscope and production method and application thereof |
| CN206378636U (en) * | 2017-01-16 | 2017-08-04 | 浙江大学 | The common light path overall view ring belt optical imaging device of active polarization targets improvement |
| CN107340546A (en) * | 2017-07-24 | 2017-11-10 | 南京信息工程大学 | A kind of undersea detection divides the double CCD real-time polarizations imaging devices in aperture and method |
| CN208424528U (en) * | 2017-12-27 | 2019-01-22 | 大连海事大学 | High definition underwater camera |
| CN109443535A (en) * | 2018-10-30 | 2019-03-08 | 浙江大学 | A kind of underwater microspectrum imaging device and method based on fast illuminated spectrum camera |
| CN209710191U (en) * | 2019-04-02 | 2019-11-29 | 浙江大学 | Rotary-type underwater polarization camera |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111246074A (en) * | 2020-03-30 | 2020-06-05 | Oppo广东移动通信有限公司 | Camera assembly, control method, electronic device and storage medium |
| CN111818251A (en) * | 2020-08-12 | 2020-10-23 | 中国海洋大学 | Rotary polarization range gating camera device |
| CN111818251B (en) * | 2020-08-12 | 2021-07-20 | 中国海洋大学 | Rotary polarization range gating camera device |
| CN114324185A (en) * | 2022-01-04 | 2022-04-12 | 浙江大学 | Underwater polarization detection device based on Stokes vector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201672917U (en) | Underwater optical pan-tilt scanning image observation device | |
| CN109905585A (en) | A kind of rotary-type underwater polarization camera | |
| CN100581244C (en) | Underwater video detection device based on the omnidirectional vision | |
| CN209710191U (en) | Rotary-type underwater polarization camera | |
| CN102377918A (en) | Underwater camera | |
| CN101852979A (en) | Panoramic camera | |
| CN113194216A (en) | Voice coil motor, lens module and electronic equipment | |
| CN109632102A (en) | Infrared polarization image measuring device based on rotatory polarization piece | |
| CN103033942A (en) | Optical imaging system and method and aperture diaphragm assembly and aperture element | |
| CN106441109A (en) | Refraction and reflection-type laser-ranging three-dimensional omnidirectional-imaging integrated device | |
| CN106534636A (en) | Rotary scanning imaging system device for linear array CCD (Charge Coupled Device) camera | |
| CN2862069Y (en) | Digital imaging microscope with display screen | |
| JP2562095Y2 (en) | Drip-proof waterproof lens | |
| CN1800903A (en) | Digital photographing microscope with display screen | |
| CN209485965U (en) | A kind of underwater spectral reflectivity in-situ measurement device of binocular imaging formula | |
| CN114302080A (en) | High-performance underwater television | |
| CA1195421A (en) | Electronic cinema camera | |
| CN108087679A (en) | A kind of intelligent sphere machine head | |
| CN210923454U (en) | Underwater real-time polarization imaging system | |
| CN216531542U (en) | Rotating mirror type image acquisition device | |
| WO2015174065A1 (en) | Camera device | |
| CN202602792U (en) | Star-light high-speed ball-type camera | |
| CN113243104A (en) | Lighting device for automatic switching between visible light source and infrared light source | |
| CN206411335U (en) | Panoramic scanning device | |
| KR100379763B1 (en) | Device for recording three dimensional video that can be watched without 3D glasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |