CN208766403U - 3-dimensional image acquisition device - Google Patents
3-dimensional image acquisition device Download PDFInfo
- Publication number
- CN208766403U CN208766403U CN201821520430.6U CN201821520430U CN208766403U CN 208766403 U CN208766403 U CN 208766403U CN 201821520430 U CN201821520430 U CN 201821520430U CN 208766403 U CN208766403 U CN 208766403U
- Authority
- CN
- China
- Prior art keywords
- camera lens
- luminous element
- beam splitter
- measured object
- dimensional image
- 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.)
- Active
Links
Abstract
The utility model provides a kind of 3-dimensional image acquisition device, including controlling processing unit, camera lens, quarter wave plate, polarizing beam splitter, polarizing film, it lattice luminous element and picks up as device, camera lens, it picks up as device, the center of polarizing beam splitter and quarter wave plate is located in same horizontal line, polarizing beam splitter is set to camera lens and picks up as between device, quarter wave plate is set between polarizing beam splitter and camera lens, lattice luminous element and polarizing film are set to the side of polarizing beam splitter, the light source of lattice luminous element is through polarizing film, it is radiated on measured object and reflects after polarizing beam splitter and quarter wave plate, the reflected light of measured object is through lens imaging in picking up as on device, it controls processing unit and changes the distance between camera lens and measured object, and paroxysm optical element in control point is opened and closed, lattice luminous element open and-shut mode under different distance is obtained to pick up as generating on device Image.The utility model structure is simple, and 3-dimensional image is precisely formed in the image of control processing unit process points paroxysm optical element different conditions, and imaging effect is good.
Description
Technical field
The utility model relates to a kind of imaging device more particularly to a kind of 3-dimensional image acquisition device.
Background technique
The mankind are the biologies with solid space sense organ, when eyes look at a measured object, are had between eyes angled
Parallax, this parallax signals can be sent to brain, and in the visual processes district's groups synthesized image of brain, being formed has level and the depth of field
Single image, and then make us class generate three-dimensional space three-dimensional sense, and with science and technology being showing improvement or progress day by day, 3-dimensional image is after height
Development trend after clear image, existing 3-dimensional image acquisition device are usually to utilize different acquisition device at different angles
Multiple images are shot, then are synthesized to obtain 3-dimensional image, or configure two independent camera lenses on the ontology of acquisition device,
And average distance between being approximately equal to the mankind two is set by the distance between camera lens, the right and left eyes of simulated human are whereby to obtain three
Image is tieed up, structure is complicated for above-mentioned 3-dimensional image acquisition device, and operation difficulty is big and expensive.
Therefore need a kind of at low cost, structure simple and the three-dimensional good 3-dimensional image acquisition device of measured object imaging effect.
Utility model content
The purpose of this utility model is to provide a kind of at low cost, structure, simple and three-dimensional measured object imaging effect is good
3-dimensional image acquisition device.
To achieve the goals above, the utility model provides a kind of 3-dimensional image acquisition device, including control processing unit,
It camera lens, quarter wave plate, polarizing beam splitter, polarizing film, lattice luminous element and picks up as device, the camera lens is picked up as device, polarization point
The center of light device and quarter wave plate is located in same horizontal line, and the polarizing beam splitter is set to the camera lens and picks up picture with described
Between device, the quarter wave plate is set between the polarizing beam splitter and camera lens, and the lattice luminous element and polarizing film are set
It is placed in the side of the polarizing beam splitter, the lattice luminous element issues light source, and the light source is successively through polarizing film, polarization point
Be radiated on measured object and reflect after light device and quarter wave plate, the reflected light reflected through the measured object by the camera lens at
As picking up in described as on device, it is mobile to change between the camera lens and measured object that the control processing unit controls the camera lens
Distance f1, the control processing unit control the opening and closing of the lattice luminous element, and obtain the institute under the different distance f1
Lattice luminous element is stated to open or close under state in the image picked up as generating on device and processing.
Compared with prior art, the light source of the lattice luminous element of the utility model forms single wavelength after polarizing film
Light is forming circularly polarized light by polarizing beam splitter and quarter wave plate, is being radiated on measured object and is more clear, so that at control
The 3-dimensional image that device is capable of more accurate acquisition measured object is managed, after each light source point exposes to measured object in lattice luminous element
Reflection, for the reflected light of measured object by lens imaging in picking up in picture device, control processing unit control camera lens is mobile and changes camera lens
The opening and closing of the distance between measured object f1 and control point paroxysm optical element, to obtain the point paroxysm at different distance f1
Image when image and lattice luminous element when optical element is opened are closed, under lattice luminous element open state
The image arrived is irradiation figure, and the image obtained under lattice luminous element closed state is Background, control processing dress
After setting the irradiation figure and Background that receive n different distance f1, to irradiation figure and Background corresponding to each distance f1
It is handled to obtain the corresponding dot matrix irradiation figure of each distance f1, then is irradiated in figure by control processing unit from each dot matrix
Find out distance f1 corresponding to the highest contrast of each light source point, then corresponding to the highest contrast by each light source point away from
Depth map is formed from f1, three-dimensional data relevant to measured object can be obtained correspondingly to constitute 3-dimensional image, the utility model is straight
It connected a camera lens and obtains 3-dimensional image, and synthesized three again without in different angle shooting measured object without using a plurality of lenses
Image is tieed up, structure is simple, advantage of lower cost, and 3-dimensional image, 3-dimensional image generated can be precisely formed by depth map
It is more nearly true measured object, imaging effect is good.
Preferably, the control processing unit includes control unit, processing unit and display unit, described control unit
It controls the camera lens movement and the opening and closing of lattice luminous element, the processing unit obtains the image picked up as generating on device
And handle, the display unit shows the image picked up as generating on device.
Preferably, the 3-dimensional image acquisition device of the utility model further includes the aperture for being same as adjusting luminous flux, the light
Circle is set between the quarter wave plate and camera lens, and the center of the aperture and the center of camera lens are located in same horizontal line.
Preferably, the 3-dimensional image acquisition device meetsWherein f1 is the measured object and the mirror
Distance between head, f2 are that the camera lens is picked up with described as the distance between device, and f is the focal length of the camera lens.
Preferably, the lattice luminous element includes lamp plate and several are evenly spaced in the LED light on the lamp plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the 3-dimensional image acquisition device of the utility model.
Fig. 2 is the structural schematic diagram of the lattice luminous element of the utility model.
Fig. 3 is the flow chart of the 3-dimensional image acquisition device of the utility model.
Specific embodiment
In order to have the understanding being more clear to the technical characteristics of the utility model, purpose and effect, it is detailed first to compare attached drawing
Illustrate specific embodiment of the present utility model.
Referring to FIG. 1, the utility model provides a kind of 3-dimensional image acquisition device 100, including control processing unit 101,
It camera lens 102, quarter wave plate 103, polarizing beam splitter 104, polarizing film 105, lattice luminous element 106 and picks up as device 107, specifically
Ground, camera lens 102, quarter wave plate 103, polarizing beam splitter 104 and is picked up as the center of device 107 is located in same horizontal line, wherein partially
Vibration optical splitter 104 is set to camera lens 102 and picks up as between device 107, quarter wave plate 103 is set to polarizing beam splitter 104 and camera lens
Between 102, and lattice luminous element 106 and polarizing film 105 are set to the side of polarizing beam splitter 104；Polarizing beam splitter 104 is
Common optical device, 104 English of polarizing beam splitter: polarization beam splitte, referred to as: PBS, polarization spectro
Incident non-polarized light can be divided into the vertical line polarisation of two beams by device 104, and wherein P polarisation passes through completely, and S polarisation is with 45 degree of angles
It is reflected, exit direction and P light are at an angle of 90 degrees, and polarization splitting prism is formed by a pair of of high-precision right-angle prism gluing, wherein one
It is coated with polarization spectro deielectric-coating on the bevel edge of a prism, therefore the utility model is picked up as device 107 is located at polarizing beam splitter 104
P polarization direction, lattice luminous element 106 are located at the S polarization direction of polarizing beam splitter 104 so that pick up as device 107 with it is lattice luminous
Element 106 is located at the adjacent two sides of polarizing beam splitter 104, that is, picks up as device 107 and the perpendicular setting of lattice luminous element 106；
Polarizing film 105 is set between lattice luminous element 106 and polarizing beam splitter 104, and lattice luminous element 106 issues light when opening
Source, the light source is successively radiated on measured object 10 after polarizing film 105, polarizing beam splitter 104 and quarter wave plate 103, described
Light source is imaged in by camera lens 102 by the reflected light for reflecting, and reflecting through measured object 10 after being radiated on measured object 10 and picks up picture
On device 107, control processing unit 101 can control camera lens 102 mobile to change the distance between camera lens 102 and measured object 10 f1,
Also can control the open and close of lattice luminous element 106, and obtain the lattice luminous element 106 under different distance f1 open or
The image as generating on device 107 is picked up under closed state and image is handled.
Specifically, control processing unit 101 is mobile so that the distance between camera lens 102 and measured object 10 are by camera lens 102
F1=f11, controls 101 opening point paroxysm optical element 106 of processing unit, the light source of lattice luminous element 106 through polarizing film 105,
It is radiated on measured object 10 after polarizing beam splitter 104 and quarter wave plate 103, the reflected light of measured object 10 (measured object 10 herein
Reflected light includes the light source of natural light and lattice luminous element 106) ten are imaged in as on devices 107 through camera lens 102, image at this time
For irradiation figure, control processing unit 101 obtains irradiation figure and stores, and control processing unit 101 closes lattice luminous element 106,
It is now in (i.e. measured object only under natural light) under natural conditions, the reflected light (reflection of measured object 10 herein of measured object 10
Light is natural light) ten are imaged in as on device 107, image is Background, the control acquisition back of processing unit 101 at this time through camera lens 102
Scape figure simultaneously stores, and irradiation figure is subtracted Background by control processing unit 101 reprocessing irradiation figure and Background, i.e., will irradiation
Position and brightness are partially removed with completely the same in Background in figure, to obtain each light on lattice luminous element 106
The contrast image of source point, the image are dot matrix irradiation figure.Above step is repeated, the dot matrix obtained under multiple and different distance f1 shines
Figure is penetrated, and dot matrix irradiation figure is stored to carry out subsequent processing.
Wherein, control processing unit 101 includes control unit 101a, processing unit 101b and display unit 101c, control
The movement of unit 101a control camera lens 102 and the opening and closing of lattice luminous element 106 processed, processing unit 101b acquisition are picked up as device 107
The image of upper generation and processing are picked up as the image generated of device 107 is stored in processing unit 101b, and display unit 101c is shown
The image as generating on device 107 is picked up, display unit 101c can also show that image obtains three after processing unit 101b processing
Tie up image.
With continued reference to FIG. 1, in order to more accurately obtain 3-dimensional image, 3-dimensional image acquisition device 100 further includes being used for
The aperture 108 of luminous flux is adjusted, aperture 108 is set between quarter wave plate 103 and camera lens 102 and the center of aperture 108 and camera lens
102 center is located in same horizontal line, and the horizontal line is consistent with the primary optical axis of camera lens 102.
With continued reference to FIG. 1,3-dimensional image acquisition device 100 meetsF1 is measured object 10 and camera lens 102
The distance between, f2 is camera lens 102 and picks up as the distance between device 107 that f is the focal length of camera lens 102, wherein camera lens 102
Focal length f it is known that camera lens 102 and pick up as the distance between device 107 f2 is fixed and numerical value it is known that according toCan acquire away from
From f1.
Referring to FIG. 2, lattice luminous element 106 includes lamp plate 106a and several are evenly spaced on lamp plate 106a
LED light 106b, each LED light 106b are then a light source point, issue institute jointly by all LED light 106b on lamp plate 106a
Light source is stated, certainly, other common lattice luminous elements can be can be replaced into according to use demand.
According to physics of photography, when camera lens 102 is correctly focused, measured object 10 is incident upon ten as on device 107 through camera lens 102
The contrast of image be it is highest, wherein contrast refers to brightness difference or contrast, and when to focus on an object flat for light beam
When face, the contrast of luminous point be also it is highest, i.e., on the certain point that light beam focuses on measured object 10 and camera lens 102 is again poly- simultaneously
It is burnt in this regard when, pick up the contrast highest as the luminous point on device 107, can be by imaging in ten as every on device 107
The highest contrast that each light source point is radiated on measured object 10 is found in one irradiation figure, then finds institute according to highest contrast
Corresponding focal length obtains the three-dimensional data of measured object, and the 3-dimensional image of measured object is obtained according to three-dimensional data, according to principles above
And Fig. 1 and Fig. 3 is combined, specifically, the operating method that 3-dimensional image acquisition device 100 obtains 3-dimensional image is as follows, first to tested
Object 10 is generally focused, and the distance between camera lens 102 and measured object 10 are f1=f1 ' at this time, and f1 ' is set as average coke
Away from the basis of f1=f1 ', lattice luminous element 106 being closed, measured object 10 images in ten as in devices 107, image is base
Quasi- image, control processing unit 101 obtain average focal length and benchmark image and store, and control processing unit 101 controls camera lens
The distance between the 102 mobile camera lenses 102 made and measured object 10 f1=f11, wherein the mirror after control processing unit 101 controls
The distance between first 102 and measured object 10 f1, which are smaller than average focal length, can also be greater than average focal length, in f1=f11, at control
101 opening point paroxysm optical element 106 of device is managed, the light source of lattice luminous element 106 is exposed on measured object 10 and reflected, and is tested
Object 10 images in ten as (generating irradiation figure) on device 107 through camera lens 102, and the control acquisition of processing unit 101 images in ten as device 107
On irradiation figure and store；Control processing unit 101 closes lattice luminous element 106, and measured object 10 is imaged in through camera lens 102 again
It picks up as (generating Background) on device 107, the control acquisition of processing unit 101 images in ten as the Background on device 107 and storage, then
Irradiation figure is subtracted into Background and obtains the dot matrix irradiation figure at distance f11, at this point, control processing unit 101 stores the dot matrix
Irradiation figure, dot matrix irradiate the image with each light source point on lattice luminous element 106 on figure, the dot matrix at distance f11
The light source point contrast irradiated on figure is different, repeats above step, and the n-1 dot matrix obtained under distance f1=f12 ... f1n shine
Figure is penetrated, n dot matrix irradiation figures are compared again for control processing unit 101, find out a certain light source point of lattice luminous element 106
Contrast at which distance f1 is maximum, this distance f1 is the focal length of the light source point, finds the focal length of each light source point, often
Focal length corresponding to one light source point collectively forms the depth map of measured object, and focal length corresponding to each light source point subtracts average coke again
Away from the three-dimensional data of measured object is obtained, be adjusted according to the three-dimensional data of measured object and benchmark image can accurately obtain it is tested
The 3-dimensional image of object.100 structure of 3-dimensional image acquisition device of the utility model is simple, directly using camera lens 102 via
It controls the control of processing unit 101 and obtains 3-dimensional image, all images are handled by control processing unit 101, and are located
The three-dimensional data of measured object 10 can be obtained after reason and can accurately obtain the 3-dimensional image of measured object 10 according to three-dimensional data.
Preferably, the 3-dimensional image acquisition device 100 of the utility model can be applied to the general three-dimensional data of reading face, read three
Dimension stereo object makees 3D printing, identification plane and solid by object and auto-focusing projection arrangement (such as projector), but not
It is limited to this.
The foregoing is merely the utility model institute preferred embodiments, and the right model of the utility model cannot be limited with this
It encloses.In the conception range of the utility model, corresponding variation can be reasonably made.Therefore, the protection model of the utility model
Claims should be subject to by enclosing.
Claims (5)
1. a kind of 3-dimensional image acquisition device, which is characterized in that including controlling processing unit, camera lens, quarter wave plate, polarization spectro
It device, polarizing film, lattice luminous element and picks up as device, the camera lens picks up the center as device, polarizing beam splitter and quarter wave plate
In same horizontal line, the polarizing beam splitter is set to the camera lens and described picks up the quarter wave plate setting as between device
Between the polarizing beam splitter and camera lens, the lattice luminous element and polarizing film are set to the one of the polarizing beam splitter
Side, the lattice luminous element issue light source, and the light source successively irradiates after polarizing film, polarizing beam splitter and quarter wave plate
It on measured object and reflects, the reflected light reflected through the measured object is picked up on picture device by the lens imaging in described, described
It is mobile to change the distance between the camera lens and measured object f1, the control processing dress that control processing unit controls the camera lens
The opening and closing for controlling the lattice luminous element is set, and obtains the lattice luminous element under the different distance f1 and opens or close
In the image picked up as being generated on device and processing under closed state.
2. 3-dimensional image acquisition device as described in claim 1, which is characterized in that the control processing unit includes that control is single
Member, processing unit and display unit, described control unit control the camera lens movement and the opening and closing of lattice luminous element, institute
It states processing unit and obtains the image picked up as generating on device and processing, the display unit shows the figure picked up as generating on device
Picture.
3. 3-dimensional image acquisition device as described in claim 1, which is characterized in that further include the light for being same as adjusting luminous flux
Circle, the aperture is set between the quarter wave plate and camera lens, and the center of the aperture and the center of camera lens are located at same water
On horizontal line.
4. 3-dimensional image acquisition device as described in claim 1, which is characterized in that the 3-dimensional image acquisition device meetsWherein f1 be the measured object and the camera lens the distance between, f2 is the camera lens and described picks up as device
The distance between, f is the focal length of the camera lens.
5. 3-dimensional image acquisition device as described in claim 1, which is characterized in that the lattice luminous element include lamp plate with
And several are evenly spaced in the LED light on the lamp plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821520430.6U CN208766403U (en) | 2018-09-17 | 2018-09-17 | 3-dimensional image acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821520430.6U CN208766403U (en) | 2018-09-17 | 2018-09-17 | 3-dimensional image acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208766403U true CN208766403U (en) | 2019-04-19 |
Family
ID=66135915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821520430.6U Active CN208766403U (en) | 2018-09-17 | 2018-09-17 | 3-dimensional image acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208766403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220368868A1 (en) * | 2021-05-14 | 2022-11-17 | Panasonic Intellectual Property Management Co., Ltd. | Projection display apparatus |
-
2018
- 2018-09-17 CN CN201821520430.6U patent/CN208766403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220368868A1 (en) * | 2021-05-14 | 2022-11-17 | Panasonic Intellectual Property Management Co., Ltd. | Projection display apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5167279B2 (en) | Method and apparatus for quantitative three-dimensional imaging | |
| US10571668B2 (en) | Catadioptric projector systems, devices, and methods | |
| JP6409006B2 (en) | Plenoptic imaging device | |
| KR20190133229A (en) | Skew Mirror Secondary Imaging | |
| EP3480648B1 (en) | Adaptive three-dimensional imaging system | |
| JP2010526481A (en) | Single lens 3D imaging device using a diaphragm aperture mask encoded with polarization combined with a sensor sensitive to polarization | |
| US9900579B2 (en) | Depth-sensing camera device having a shared emitter and imager lens and associated systems and methods | |
| CN109683299A (en) | A kind of high-resolution micro imaging system of polychrome multi-angle illumination | |
| US10503251B2 (en) | Display system and display method | |
| EP3756161B1 (en) | Method and system for calibrating a plenoptic camera system | |
| CN109946681A (en) | A kind of TOF fast calibration device and method | |
| CN208766403U (en) | 3-dimensional image acquisition device | |
| CN108206944A (en) | Evaluate the method and system of the projection clarity of the diverging light formula speckle projector | |
| CN110553585A (en) | 3D information acquisition device based on optical array | |
| CN208765705U (en) | Optical distance measurement apparatus | |
| CN103412461B (en) | 3D imaging system based on light splitting piece | |
| CN106791335B (en) | A kind of compact big visual field optical field acquisition system and its analysis optimization method | |
| CN208766402U (en) | Optical 3-dimensional image forming apparatus | |
| CN208691443U (en) | 3-dimensional image acquisition device based on array light source | |
| CN104834102B (en) | Optical system capable of changing single camera into stereo camera and method thereof | |
| Tagawa et al. | 8-D reflectance field for computational photography | |
| CN106352984A (en) | Spectrum polarization image projection device and projection method thereof | |
| CN110196232B (en) | Confocal imaging device and confocal imaging method | |
| GB2468138A (en) | Stereoscopic imaging apparatus and adaptor for single lens camera | |
| TW202117385A (en) | Tof camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |