CN105049690B - Portable polarization digital camera and its imaging method - Google Patents
Portable polarization digital camera and its imaging method Download PDFInfo
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- CN105049690B CN105049690B CN201510391808.1A CN201510391808A CN105049690B CN 105049690 B CN105049690 B CN 105049690B CN 201510391808 A CN201510391808 A CN 201510391808A CN 105049690 B CN105049690 B CN 105049690B
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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
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
Abstract
The invention discloses a kind of portable polarization digital camera and its imaging method, the portable polarization digital camera includes：Three polarizers and imageing sensor；Three polarizers are pasted in the first area of the passage of the preset wavelength of described image sensor side, second area and the 3rd region so that the first predetermined angle, the second predetermined angle and the 3rd predetermined angle are parallel respectively, the passage of preset wavelength is divided into four regions, polarizer is used to that incident light to be covered and passed through, and obtains the optical signal of different polarization angle；Imageing sensor is used to receive the optical signal of the different polarization angle that three polarizers are obtained, and the optical signal of different polarization angle is converted into electric signal.By pasting multiple polarizers in the passage of specific wavelength, can effectively weaken or eliminate the reflective of nonmetallic surface, improve color saturation, intensify, obtain more wide visual field image, realize finer imaging.
Description
Technical field
The present invention relates to polarize digital camera technology field, and in particular to a kind of portable polarization digital camera and its imaging
Method.
Background technology
At the eighties initial stage, the Airborne digital camera made using CCD device is occurred in that, continued to bring out in coming years
Go out various digital cameras.With the development of CCD device, digital camera is from the airborne digital camera of linear array and face battle array to video format
Airborne digital camera arrive again linear array and face battle array Airborne digital camera system.Typical Airborne digital camera have ADS40, DMC,
UltraCamD etc..
The composition of aviation polarization digital camera mainly includes optical lens, polarizer, optical filter and CCD planar array detectors
Deng.Wherein optical system is main is made up of group after group before bigbore negative lens and double glued positive lens.Preceding group of Main Function
It is the angle for reducing light beam and optical axis, astigmatism and the distortion of system is eliminated as far as possible, is that rear group of focal imaging is prepared；After organize it is right
Light beam is arranged and focused on, main color difference eliminating etc.；Front group and rear group coordinate and elongate rear cut-off distance and constitute image space telecentricity
Optical system.
In consideration of it, how effectively to weaken or eliminate the reflective of nonmetallic surface, color saturation is improved, intensified,
More wide visual field image is obtained, realizes that finer imaging turns into the technical problem for being currently needed for solving.
The content of the invention
For defect of the prior art, the present invention provides a kind of portable polarization digital camera and its imaging method, can
Effectively to weaken or eliminate the reflective of nonmetallic surface, color saturation is improved, intensified, obtain more wide visual field image,
Realize finer imaging.
In a first aspect, the present invention proposes a kind of portable polarization digital camera, including：Three polarizers and image sensing
Device；
Three polarizers are with the first predetermined angle, the second predetermined angle is parallel respectively with the 3rd predetermined angle is pasted on
In the first area of the passage of the preset wavelength of described image sensor side, second area and the 3rd region, the default ripple
Passage long is divided into four regions, and the polarizer is used to that incident light to be covered and passed through, and obtains different polarization angle
Optical signal；
Described image sensor, the optical signal for receiving the different polarization angle that three polarizers are obtained, and will
The optical signal of the different polarization angle is converted to electric signal.
Optionally, first predetermined angle is 0 °, and second predetermined angle is 60 °, and the 3rd predetermined angle is
120°。
Optionally, the polarizer is formed with laminar manner by polarizing coating, inner protection film, pressure-sensitive adhesive layer and outer diaphragm
Composite.
Optionally, described image sensor is the imageing sensor of pel array composition, each in the pel array
Pixel is photodiode, and the quantity of the pixel in the pel array is 105To 107The order of magnitude.
Optionally, the portable polarization digital camera, also includes：Analog-digital converter, imaging lens and fuselage；
The analog-digital converter is located in the fuselage, for receiving the electric signal that described image sensor is converted to,
And the electric signal is converted into data signal by analog signal；
The imaging lens are located in the fuselage, for receiving the data signal that the analog-digital converter is converted to,
And be imaged according to the data signal.
Optionally, described image sensor is matrix CCD.
Second aspect, the present invention proposes a kind of imaging method based on portable polarization digital camera, including：
With the first predetermined angle, the second predetermined angle is parallel respectively with the 3rd predetermined angle is pasted on imageing sensor side
The first area of passage of preset wavelength, three polarizers in second area and the 3rd region incident light is covered and
Through obtaining the optical signal of different polarization angle；
Imageing sensor receives the optical signal of the different polarization angle that three polarizers are obtained, and will be described different inclined
The optical signal of angle of shaking is converted to electric signal.
Optionally, the passage of the preset wavelength is divided into four regions, and first predetermined angle is 0 °, and described second is pre-
If angle is 60 °, the 3rd predetermined angle is 120 °.
Optionally, methods described also includes：
Analog-digital converter receives the electric signal that described image sensor is converted to, and by the electric signal by analog signal
Be converted to data signal；
Imaging lens receive the data signal that the analog-digital converter is obtained, and are imaged according to the data signal.
As shown from the above technical solution, the present invention in the passage of specific wavelength by pasting multiple polarizers, Ke Yiyou
Effect weakens or eliminates the reflective of nonmetallic surface, improves color saturation, intensifys, and obtains more wide visual field image, realizes
Finer imaging.
Brief description of the drawings
A kind of structural representation of portable polarization digital camera that Fig. 1 is provided for one embodiment of the invention；
Fig. 2 is the structural representation of each passage of the imageing sensor of portable polarization digital camera shown in Fig. 1；
Fig. 3 shows for a kind of flow of imaging method based on portable polarization digital camera that one embodiment of the invention is provided
It is intended to.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
Only it is a part of embodiment of the invention, rather than whole embodiments.Based on embodiments of the invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 shows the structural representation of the portable polarization digital camera that one embodiment of the invention is provided, including：Three
Polarizer 11 and imageing sensor 12；
Three polarizers 11 are with the first predetermined angle, the second predetermined angle and the 3rd predetermined angle parallel stickup of difference
It is described pre- in the first area of the passage of the preset wavelength of the side of described image sensor 12, second area and the 3rd region
If the passage of wavelength is divided into four regions, the polarizer 11 is used to that incident light to be covered and passed through, and obtains different polarization
The optical signal of angle；
Described image sensor 12, the optical signal for receiving the different polarization angle that three polarizers 11 are obtained,
And the optical signal of the different polarization angle is converted into electric signal.
In a particular application, the first predetermined angle described in the present embodiment is 0 °, and second predetermined angle is 60 °, described
3rd predetermined angle is 120 °.
In a particular application, the present embodiment described image sensor 12 is the imageing sensor of pel array composition, described
Each pixel in pel array is photodiode, and the quantity of the pixel in the pel array is 105To 107The order of magnitude.I.e.
Described image sensor 12 includes 105To 107The order of magnitude photodiode.
It should be noted that imageing sensor 12 is the core component of camera of the present invention, it will collect diffusing for sample
Signal is changed into electric signal, and its quality determines the image quality of digital camera, although its volume very little, contains tens
Ten thousand or even up to ten million diode --- the photodiodes with photobehavior.Each photodiode is a pixel,
Described image sensor is the pel array that the pixel is constituted, and when there is light to irradiate, photodiode will produce electric charge
Accumulation, the electric charge of accumulation is eventually converted into corresponding pixel data.
Fig. 2 shows the structural representation of each passage of imageing sensor 12, as shown in Fig. 2 each pixel correspondence one
Passage 121, passage is used for storing selection content and the other information in an image file, generally represents color color range in image
Change, such as in gray level image passage performance is from black to white 256 changes of color range.In the present embodiment each
121 points of passage is four subregions, respectively first area 1211, second area 1212, the 3rd region 1213 and the 4th region
1214。
In a particular application, the present embodiment described image sensor 12 can be preferably surface array charge-coupled element
(Charge Coupled Device, abbreviation CCD) sensor.
In a particular application, polarizer 11 described in the present embodiment is by polarizing coating, inner protection film, pressure-sensitive adhesive layer and outer protection
The composite that film is formed with laminar manner.Polarizer 11 described in the present embodiment is integrated in each passage 121 of preset wavelength
On, each passage of preset wavelength is divided into four regions, in first area 1211, the region 1213 of second area 1212 and the 3rd
3 polarizers of different angles (0 °, 60 ° and 120 °) are pasted respectively, polarizer is not pasted in the 4th region 1214, realize jointly
Finer imaging, can obtain the very abundant image information of imaging object.Polarizer 11 to incident light have masking and thoroughly
The function of crossing, can make longitudinal light or a kind of transmission of lateral light, one kind masking.
In a particular application, portable polarization digital camera also includes described in the present embodiment：(A/D is changed analog-digital converter
Device), imaging lens and fuselage；
The analog-digital converter is located in the fuselage, for receiving the electric signal that described image sensor is converted to,
And the electric signal is converted into data signal by analog signal；
The imaging lens are located in the fuselage, for receiving the data signal that the analog-digital converter is converted to,
And be imaged according to the data signal.
Analog-digital converter, imaging lens and fuselage described in the present embodiment is similar with general camera, no longer goes to live in the household of one's in-laws on getting married herein
State.
In the prior art, each region of each passage of general camera is same imaging mode, the present invention by
Integrated polarizing piece realizes 4 different angle snap shots formulas imagings on each passage.
The portable polarization digital camera that the present embodiment is provided, can by pasting different angle polarizers before imaging lens
Effectively to weaken or eliminate the reflective of nonmetallic surface, while color saturation can also be effectively improved, intensify, and
There are three pieces of different angle polarizers to be imaged simultaneously, more wide visual field image can be obtained, realize finer imaging.
Fig. 3 shows a kind of stream of imaging method based on portable polarization digital camera that one embodiment of the invention is provided
Journey schematic diagram, as shown in figure 3, the imaging method based on portable polarization digital camera of the present embodiment is as described below.
301st, with the first predetermined angle, the second predetermined angle is parallel respectively with the 3rd predetermined angle is pasted on imageing sensor
Three polarizers in the first area of the passage of the preset wavelength of side, second area and the 3rd region hide to incident light
Cover and pass through, obtain the optical signal of different polarization angle.
302nd, imageing sensor receives the optical signal of the different polarization angle that three polarizers are obtained, and by described in not
Electric signal is converted to the optical signal of polarization angle.
In a particular application, the passage of preset wavelength described in the present embodiment is divided into four regions, first predetermined angle
It it is 0 °, second predetermined angle is 60 °, the 3rd predetermined angle is 120 °.
In a particular application, the step of the present embodiment methods described also includes not shown in figure 303 and 304：
303rd, analog-digital converter receives the electric signal that described image sensor is converted to, and by the electric signal by simulating
Signal is converted to data signal.
304th, imaging lens receive the data signal that the analog-digital converter is obtained, and are imaged according to the data signal.
The imaging method based on portable polarization digital camera of the present embodiment, based on the portable of embodiment illustrated in fig. 1
Polarization digital camera, can effectively weaken or eliminate the reflective of nonmetallic surface, improve color saturation, intensify, and obtain
More wide visual field image is taken, finer imaging is realized.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from the claims in the present invention and limited
Fixed scope.
Claims (9)
1. a kind of portable polarization digital camera, it is characterised in that including：Three polarizers and imageing sensor；
Three polarizers with the first predetermined angle, the second predetermined angle and the 3rd predetermined angle respectively it is parallel be pasted on it is described
In the first area of the passage of the preset wavelength of imageing sensor side, second area and the 3rd region, in described image sensing
One passage of each pixel correspondence in device, the passage of the preset wavelength is divided into four regions, and the polarizer is used for incidence
Light is covered and is passed through, and obtains the optical signal of different polarization angle；
Described image sensor, the optical signal for receiving the different polarization angle that three polarizers are obtained, and will be described
The optical signal of different polarization angle is converted to electric signal.
2. portable polarization digital camera according to claim 1, it is characterised in that first predetermined angle is 0 °,
Second predetermined angle is 60 °, and the 3rd predetermined angle is 120 °.
3. portable polarization digital camera according to claim 1, it is characterised in that the polarizer be by polarizing coating,
The composite that inner protection film, pressure-sensitive adhesive layer and outer diaphragm are formed with laminar manner.
4. portable polarization digital camera according to claim 1, it is characterised in that described image sensor is pixel battle array
The imageing sensor of composition is arranged, each pixel in the pel array is photodiode, the pixel in the pel array
Quantity be 105To 107The order of magnitude.
5. portable polarization digital camera according to claim 1, it is characterised in that also include：Analog-digital converter, imaging
Camera lens and fuselage；
The analog-digital converter is located in the fuselage, for receiving the electric signal that described image sensor is converted to, and will
The electric signal is converted to data signal by analog signal；
The imaging lens are located in the fuselage, for receiving the data signal that the analog-digital converter is converted to, and root
It is imaged according to the data signal.
6. portable polarization digital camera according to claim 1, it is characterised in that described image sensor is face battle array
Ccd sensor.
7. a kind of imaging method based on portable polarization digital camera, it is characterised in that including：
With the first predetermined angle, the second predetermined angle is parallel respectively with the 3rd predetermined angle is pasted on the pre- of imageing sensor side
If three polarizers in the first area of the passage of wavelength, second area and the 3rd region are covered and thoroughly to incident light
Cross, obtain the optical signal of different polarization angle；
Imageing sensor receives the optical signal of the different polarization angle that three polarizers are obtained, and by the different polarization angle
The optical signal of degree is converted to electric signal；
Wherein, one passage of each pixel correspondence in described image sensor, the passage of the preset wavelength is divided into four areas
Domain.
8. method according to claim 7, it is characterised in that first predetermined angle is 0 °, second preset angle
It is 60 ° to spend, and the 3rd predetermined angle is 120 °.
9. method according to claim 7, it is characterised in that also include：
Analog-digital converter receives the electric signal that described image sensor is converted to, and the electric signal is changed by analog signal
It is data signal；
Imaging lens receive the data signal that the analog-digital converter is obtained, and are imaged according to the data signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391808.1A CN105049690B (en) | 2015-07-06 | 2015-07-06 | Portable polarization digital camera and its imaging method |
| PCT/CN2015/090639 WO2017004898A1 (en) | 2015-07-06 | 2015-09-25 | Portable polarized digital camera and imaging method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510391808.1A CN105049690B (en) | 2015-07-06 | 2015-07-06 | Portable polarization digital camera and its imaging method |
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| CN105049690A CN105049690A (en) | 2015-11-11 |
| CN105049690B true CN105049690B (en) | 2017-06-09 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11399144B2 (en) | 2017-07-12 | 2022-07-26 | Sony Group Corporation | Imaging apparatus, image forming method, and imaging system |
| CN108646651A (en) * | 2018-08-08 | 2018-10-12 | 苏州宝莲灯机器人有限公司 | A kind of machinery equipment control system and its operating method based on colour sequential identification |
| CN109343000B (en) * | 2018-09-17 | 2023-06-20 | 中国电子科技集团公司电子科学研究院 | Indoor visible light imaging positioning system and positioning method |
| CN110087005B (en) * | 2019-04-23 | 2021-07-09 | Oppo广东移动通信有限公司 | Color polarization CIS, image processing method and storage medium |
| CN110505422B (en) * | 2019-08-20 | 2022-01-11 | Oppo广东移动通信有限公司 | CIS and terminal |
| CN110445998B (en) * | 2019-08-30 | 2022-02-25 | Oppo广东移动通信有限公司 | Color polarization CIS, image processing method and storage medium |
| CN110708453A (en) * | 2019-11-12 | 2020-01-17 | Oppo广东移动通信有限公司 | Image sensor, camera module, terminal and imaging method |
| CN110995968B (en) * | 2019-11-25 | 2021-08-20 | Oppo广东移动通信有限公司 | Image sensor, image pickup apparatus, electronic device, and imaging method |
| CN111273453B (en) * | 2020-01-10 | 2022-09-13 | 南京理工大学 | Polarization multiplexing-based large-field-of-view imaging device and method |
| CN111866354B (en) * | 2020-08-10 | 2022-08-19 | 联想(北京)有限公司 | Image processing device and method based on optics and electronic equipment |
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- 2015-09-25 WO PCT/CN2015/090639 patent/WO2017004898A1/en active Application Filing
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| CN1677167A (en) * | 2004-11-16 | 2005-10-05 | 中国科学院安徽光学精密机械研究所 | Three-wire array CCD push-scanning type polarization imaging detection device |
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| CN103472592A (en) * | 2013-09-18 | 2013-12-25 | 北京航空航天大学 | Snapping type high-flux polarization imaging method and polarization imager |
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| CN105049690A (en) | 2015-11-11 |
| WO2017004898A1 (en) | 2017-01-12 |
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