CN108703745A - Vein developing method based on structure light and vein imaging system - Google Patents
Vein developing method based on structure light and vein imaging system Download PDFInfo
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- CN108703745A CN108703745A CN201810583396.5A CN201810583396A CN108703745A CN 108703745 A CN108703745 A CN 108703745A CN 201810583396 A CN201810583396 A CN 201810583396A CN 108703745 A CN108703745 A CN 108703745A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4887—Locating particular structures in or on the body
- A61B5/489—Blood vessels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
- A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
Abstract
The vein developing method and vein imaging system, method that the invention discloses a kind of based on structure light include：Projection physical location is obtained to target object irradiation infrared stripes figure；Pass through the infrared image of target object described in infrared eye again, wherein the infrared image presents the picture of the vein of the target object；Infrared image is projected to the projected position in the form of visible light by projection arrangement again, wherein infrared image coincides with target object, on the position where the image projection to the vein of the target object of the vein of the target object.Through the above way, the present invention can show the picture of vein, the vein of easy-to-look-up target object in the venous locations of target object, and avoid the common optical axis requirement of projection and filming apparatus in the prior art, assembly difficulty and cost are reduced, image alignment precision is improved.
Description
Technical field
The present invention relates to field of medical device, more particularly to a kind of vein developing method and vein based on structure light
Imaging system.
Background technology
In modern medicine, intravenous medical treatment is very universal, and intravenous injection is directly to be injected directly into liquid medicine
In the blood of patient, the recovery efficiency of patient can be improved, the recovery time of patient is shortened.
But before being injected intravenously, medical staff needs to carry out venipuncture to patient, allows injection head to be inserted into and suffers from
In the vein of person.And the methods of most of identification veins rely primarily on the naked eyes and experience of medical staff at present, but due to
For its vein of different patients in skin surface feature very unobvious, it is difficult identification to lead to medical staff, has be easy to cause puncture and has lost
It loses rate to remain high always, needs to carry out patient multiple venipuncture, increase patient suffering in this way.According to the money of statistics
Material shows：The rate of puncture failure for the first time of average adult's intravenous injection is 30%；The rate of puncture failure for the first time of children intravenous injection is
45%；And it needs to puncture 3 above ratios that could be injected intravenously in children to be 43%；When intravenous injection, it also occur that
" dropped stitch " phenomenon；And have a delicate constitution, the ratio to fall flat in the patient of high fever reaches 45%.
Therefore, it is necessary to the venous systems that a kind of assist personnel searches patient, to reduce patient's puncture failure pain.
It is a kind of wide adopt to be shot using infrared light and convert the image into visible images reprojection to body surface after vein
Method.Since each acquisition target height and position have differences, in infrared vein display, projection and bat
Taking the photograph device will keep coaxial, more difficult to system assembly, increase adjustment and overall cost.
Invention content
The present invention is in view of the above problems, provide a kind of based on structure light vein developing method and vein imaging system, energy
Position where enough veins in target object shows the picture of vein, avoids projection and the coaxial requirement of filming apparatus, drops
The low assembly difficulty and cost of system improves image alignment precision.
In order to solve the above-mentioned technical problem, the present invention is using a technical solution：Two kinds of vein developing methods of offer, one
It plants and includes：Projection arrangement projects infrared stripes with infrared light state to target object, described in the acquisition of thermal camera device
The infrared stripes of target object, to obtain the position of target object；The target object is acquired by infrared eye again
Infrared image, wherein the infrared image presents the vein picture of the target object, to acquisition target vein picture into
Row enhancing is handled；Projection arrangement projects enhancing image to the target object with the state of visible light again and coincides with target object
Position, on the position where the image projection to the vein of the target object of the vein of the target object.
Wherein, after the step of acquiring the infrared stripes image of the target object, the method further includes：It extracts red
The front and back phase of outer striped deformation；By phase before and after the acquisition striped, front and back pixel-shift distance is calculated according to phase difference,
The physical location projected；Again by acquiring the infrared image of target object, to the picture of the vein of the target object into
Row highlights processing, generates strengthened image；The projection arrangement is again to the vein of the target object in the form of visible light
It is presented on the target object to coincide, so that the vein of the target object presented in the infrared image is presented on institute
It states on the position where the vein of target object.
Another kind includes：Projection arrangement is to target object projection structure striations, and camera system is with state free of light filter
To acquire the structural light stripes of the target object, to obtain the position of target object；Again by photographic device with optical filter
The infrared image of target object described in state acquisition, wherein the infrared image presents the vein picture of the target object；
It is coincided position with target object to target object projection in the form of visible light by projection arrangement, the target object
Vein image projection to the vein of the target object where position on.
Wherein, after the step of acquiring the structural light stripes image of the target object, the method further includes：Extraction
The front and back phase of structural light stripes deformation；By phase before and after the acquisition striped, front and back pixel-shift is calculated according to phase difference
Distance, the physical location projected；Again by acquiring the infrared image of target object, to the picture of the vein of the target object
Face carries out highlighting processing, generates strengthened image；The projection arrangement is in the form of visible light to the quiet of the target object
Arteries and veins is presented on the target object and coincides, so that the vein of the target object presented in the infrared image is presented on
On position where the vein of the target object.
Wherein, the infrared image step of the enhancing target object, including：The infrared image is preserved, is identified
The position of image medium sized vein, by with the position of preservation；The gray value of other location of pixels is reduced, vein image position picture is promoted
The gray value of element；By the gray value for promoting pixel, final enhancing image is generated.
In order to solve the above technical problems, to the method 1, one aspect of the present invention is：It provides a kind of quiet
Arteries and veins imaging system, including infrared light supply, infrared eye and projection arrangement；The infrared light supply is used to emit infrared light,
In, the infrared light supply coverage goal object；Infrared eye is used to acquire the infrared image of the target object, wherein
The infrared image presents the vein picture of the target object；Projection arrangement is used in the form of infrared light to the mesh
Object Projection striped is marked, obtains projected position；The infrared image is projected to the target object in the form of visible light again,
In, the projected position of the infrared image coincides with the target object, the target presented in the infrared image
On position where the image projection of the vein of object to the vein of the target object.
Wherein, the processor is specially for obtaining projected position with acquisition infrared image, step is reinforced：Pass through projection
Instrument projects infrared stripes, and the front and back phase value of striped deformation is calculated, project migration position is obtained by phase difference value；Lead to again
It crosses infrared camera and acquires the infrared image, extraction vein image position preserves the position；Will with remove this position with
Exterior pixel gray value reduces, and increases the gray value of extraction venous locations；Image after the promotion gray value is passed through into projection again
Instrument is projected away in the form of visible light.
In order to solve the above technical problems, to the method 2, one aspect of the present invention is：It provides a kind of quiet
Arteries and veins imaging system, including infrared light supply, photographic device and projection arrangement；The infrared light supply is for emitting infrared light, wherein institute
State infrared light supply coverage goal object；Photographic device with the infrared image equipped with target object described in optical filter state acquisition,
In, the infrared image presents the vein picture of the target image；Projection arrangement is used in the form of visible light to described
Target object projected fringe, obtains projected position；The infrared image is projected to the target object in the form of visible light again,
Wherein, the projected position of the infrared image coincides with the target object, the mesh presented in the infrared image
On position where the image projection to the vein of the target object of the vein of mark object.
Wherein, the processor is specially for obtaining projected position with acquisition infrared image, step is reinforced：Pass through projection
Instrument projection structure striations is calculated the front and back phase value of striped deformation, project migration position is obtained by phase difference value；Again
The infrared image is acquired by infrared camera, extraction vein image position preserves the position；It will be to remove this position
Grey scale pixel value reduces in addition, increases the gray value of extraction venous locations；Image after the promotion gray value is passed through into throwing again
Shadow instrument is projected away in the form of visible light.
The beneficial effects of the invention are as follows：The case where being different from the prior art, in embodiments of the present invention, acquisition target are red
Outer striped or structural light stripes, obtain the physical location of projection, then acquire the infrared image of target object, wherein infrared image
The picture for presenting the vein of target object projects infrared image in the form of visible light by projection arrangement to target object,
And the projection of infrared image coincides with target object position, so that the image projection of the vein of target object is to target object
On vein position, the position where being equivalent to the vein in target object shows the picture of vein, and user can be intuitively
Observe the vein position of target object, the vein of easy-to-look-up target object.
Description of the drawings
Fig. 1 is the flow chart of 1 embodiment of vein developing method of the present invention；
Fig. 2 is the flow chart that 1 embodiment of vein developing method of the present invention handles projected position；
Fig. 3 is the flow chart of 2 embodiment of vein developing method of the present invention；
Fig. 4 is the flow chart that 2 embodiment of vein developing method of the present invention handles projected position；
Fig. 5 is the flow chart that vein developing method embodiment of the present invention specifically enhances infrared image；
Fig. 6 is the schematic diagram of vein imaging system embodiment of the present invention；
Fig. 7 is existing coaxial acquisition infrared vein system schematic；
Fig. 8 is coaxial acquisition infrared vein system schematic.
Specific implementation mode
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Such as Fig. 1, vein developing method includes：
Step S1：Infrared light is irradiated to target object；
Four dephased infrared stripes are projected to target object；
The physical location of projection is calculated by the front and back phase of four width infrared stripes deformation；
Step S2：The infrared image of target object is acquired by infrared eye, wherein infrared image presents target
The picture of object；
The amount of the infrared light reflected away by the different biological tissues of target object is different, can pass through and acquire mesh
Mark object brightness and shape recognition go out different biological tissues.
Step S3：Infrared image is projected to target object, wherein infrared figure by projector apparatus in the form of visible light
The projected position of picture is obtained by step S1, it is made to coincide with target object, the image projection of the vein of target object to target
On position where the vein of object；
Infrared light is sightless for user, it is seen that light is visible user, and projector apparatus can not only project
Infrared stripes can also use the form flash infrared image of visible light, then user can be visually seen infrared image, and infrared figure
The projected position of picture is obtained by projecting infrared stripes, so that it is coincided with target object, then the mesh presented in infrared image
The vein of mark object is projected to the vein of target object, is shown equally, significantly just as the entity vein of target object
Improve the resolution of medical staff.
Embodiment 2
Such as Fig. 2 and 5, another embodiment
Step S4：Infrared stripes are projected to target object；
Step S5：By projecting four dephased infrared stripes figures, the front and back image of acquisition infrared stripes deformation.
Step S6：By image before and after the deformation of acquisition, the front and back phase value of deformation is calculated, is calculated by the two phase difference value
Go out the deviation post and projection physical location of projection, the vein institute of image projection to the target object of the vein of target object is in place
It sets.
Step S7：Infrared light is irradiated to target object；
Four dephased structural light stripes figures are projected to target object；
It is projected with the front and back phase of four width structural light stripes of no optical filter state acquisition deformation to calculate by video camera
Physical location；
Step S8：Pass through the infrared image for having optical filter state acquisition target object of photographic device, wherein infrared image
Present the picture of target object；
The amount of the infrared light reflected away by the different biological tissues of target object is different, can pass through and acquire mesh
Mark object brightness and shape recognition go out different biological tissues.
Step S9：Infrared image is projected to target object, wherein infrared figure by projector apparatus in the form of visible light
The projected position of picture is obtained by step S7, it is made to coincide with target object, the image projection of the vein of target object to target
On position where the vein of object；
Infrared light is sightless for user, it is seen that light is visible user, and photographic device not only acquires irradiation
Infrared image on targeted vein can also be used to the structural light stripes of the form flash target object of acquisition visible light, lead to
It crosses projecting apparatus enhanced infrared image is projected on the position that structure light obtains in the form of visible light, then user can be straight
Enhanced infrared image is watched, and the projected position of infrared image is obtained by projection structure striations, makes itself and target
Object coincides, then the vein of the target object presented in infrared image is projected to the vein of target object, just as mesh
The entity vein of mark object is shown equally, substantially increases the resolution of medical staff.
Embodiment 2
Such as Figure 4 and 5, another embodiment
Step S10：To target object projective structure striations；
Step S11：By projecting four dephased structural light stripes figures, the front and back figure of acquisition structural light stripes deformation
Picture.
Step S12：By image before and after the deformation of acquisition, the front and back phase value of deformation is calculated, the two phase difference value is passed through
It calculates the deviation post of projection and projects physical location, where the image projection to the vein of target object of the vein of target object
On position.
Step S13：The infrared image of infrared camera acquisition, the position of identification wherein vein image.
Step S14：The grey scale pixel value in addition to venous locations is reduced, the gray value of venous locations pixel is improved, to
Generate new final strengthened vein image.
Step S15：Strengthened image again by projecting apparatus with the form flash of visible light on the vein of target object,
Projected position is obtained according to front so that infrared image is completely superposed with target object after reinforcement.
The present invention provides vein according to the above method 1 and images system embodiment again.Referring to Fig. 6, vein imaging system
40 include infrared light supply 41, infrared eye 42 and projection arrangement 43.
Infrared light supply 41 is for emitting infrared light, wherein 41 coverage goal pair of infrared light supply that infrared light supply 41 is emitted
As 50.Wherein, infrared light can preferably penetrate the biological tissues such as epidermis and the corium of target object 50, and in the blood in vein
Hemoglobin is also different to the spectral absorption characteristics of infrared light, and therefore, target object 50 reflects away again in absorption
Infrared light contains venous information.
Infrared eye 42 is used to acquire the infrared image of target object 50, wherein infrared image presents target pair
As 50 vein picture.Since the spectral absorption characteristics that each biological tissue of target object 50 absorbs infrared light differ, then
Other biological tissues that infrared image also presents target object 50 other than the vein picture for presenting target object 50 draw
Face.Projection arrangement 43 is by stater 45 by projector on infrared stripes state, as projected target object 50, to be deformed by striped
Front and back phase difference obtains projected position so that infrared image is completely superposed with target object 50.
Processor 44 is stored up for obtaining the collected stripe pattern of 42 institute of infrared eye and infrared image, processor 44
The four spoke lines 51 (not having target) not deformed are deposited, processor 44 obtains deformed four spokes line 52 (having target), leads to
The phase of the extraction projection infrared stripes of formula 1.5 is crossed, formula 1.1 to 1.4 is grating fringe expression formula, and a (x, y) and b (x, y) divide
Not Biao Shi light intensity and body surface reflectivity variation, Φ (x, y) is by the modulated phase value of object height.Formula 2 indicates
The difference of the front and back phase value of striped deformation is extracted, the phase difference value that formula 2 is calculated substitutes into formula 3, to obtain target
Into the position of rear pixel-shift, the physical location that projection arrangement 43 projects is obtained so as to target pair in the form of visible light
As 50 projection infrared images coincide, the vein image projection of the target object 50 presented in infrared image to the mesh
On position where the vein of mark object 50.
I1(x, y)=a (x, y)+b (x, y) cos[Φ(x,y)] (1.1)
I3(x, y)=a (x, y)+b (x, y) cos[Φ(x,y)+π] (1.3)
ΔΦ (x, y)=Φ1-Φ2 (2)
Specifically, the step of processor 44 enhances the infrared image of acquisition, and generation finally enhances image is：By infrared image
It preserves, identifies and extract the position of vein image；Pixel gray value in addition to extracting position is reduced, extraction position is increased
Gray value；By enhanced image transmitting to projection arrangement 43, projection device 43 is again by stater 45 with the shape of visible light
Formula projects enhanced infrared image to target object 50.
Vein imaging system 40 further includes optical filter 46.
As shown in figure 8, coaxially acquisition infrared vein system, infrared light supply 41 irradiate human body the back of the hand 50, reflection light is passed through
Heat mirror 48 is reflected into infrared eye 42, by processor 44, by enhanced picture transfer to projection arrangement 43, projection dress
43 are set in the form of visible light by lens group 47, picture after enhancing is covered on back of people's hand, is found in this way convenient for nurse
The vein of puncture.
In embodiments of the present invention, the infrared image of target object is acquired, wherein infrared image presents target object
The picture of vein become by bar graph by projection arrangement 43 with four dephased bar graphs of infrared light form flash
Phase difference value obtains project migration position before and after shape, to obtain projection physical location；It is again that infrared image is practical according to projection
Position projects infrared image in the form of visible light, coincides with target object, so that the image projection of the vein of target object is extremely
The vein position of target object is equivalent to and shows that the picture of vein, user can be in the vein position of target object
It is visually observed that the vein position of target object, the vein of easy-to-look-up target object are infrared quiet with coaxially acquiring
Vein system system compares, and simplifies the overall structure of system, reduces heat mirror 48 and lens group 47, reduces cost, in structure
It is compacter.
The present invention provides vein according to the above method 2 and images system embodiment again.Referring to Fig. 7, vein imaging system
40 include infrared light supply 41, photographic device 42 and projection arrangement 43.
Infrared light supply 41 is for emitting infrared light, wherein 41 coverage goal pair of infrared light supply that infrared light supply 41 is emitted
As 50.Wherein, infrared light can preferably penetrate the biological tissues such as epidermis and the corium of target object 50, and in the blood in vein
Hemoglobin is also different to the spectral absorption characteristics of infrared light, and therefore, target object 50 reflects away again in absorption
Infrared light contains venous information.
For photographic device 42 by adjustment state device 53, the infrared image for acquiring target object 50 modulates stater 53
Photographic device has the state of optical filter, wherein infrared image presents the vein picture of target object 50.Due to target object 50
Each biological tissue absorb infrared light spectral absorption characteristics differ, then infrared image is in addition to presenting target object 50
Other biological tissue's pictures of target object 50 are also presented except vein picture.Projection arrangement 43 projects mesh with structural light stripes
It marks on object 50, throwing is obtained by the way that stater 53 is adjusted to the front and back phase difference of state acquisition striped deformation free of light filter
Shadow position so that infrared image is completely superposed with target object 50.
Processor 44 is for obtaining 42 collected structural light stripes images of photographic device and infrared image, processor 44
The four spoke lines 51 (not having target) not deformed are stored, processor 44 obtains deformed four spokes line 52 (having target),
The phase of projection infrared stripes is extracted by formula 1.5, formula 1.1 to 1.4 is grating fringe expression formula, a (x, y) and b (x,
Y) variation of light intensity and body surface reflectivity is indicated respectively, and Φ (x, y) is by the modulated phase value of object height.Formula 2
Indicate the difference of the front and back phase value of extraction striped deformation, the phase difference value that formula 2 is calculated substitutes into formula 3, to obtain
Target enters the position of rear pixel-shift, obtains the physical location that projection arrangement 43 projects so as to mesh in the form of visible light
Mark object 50 projects infrared image and coincides, and the vein image projection of the target object 50 presented in infrared image is extremely
On position where the vein of the target object 50.
I1(x, y)=a (x, y)+b (x, y) cos[Φ(x,y)] (1.1)
I3(x, y)=a (x, y)+b (x, y) cos[Φ(x,y)+π] (1.3)
ΔΦ (x, y)=Φ1-Φ2 (2)
Specifically, the step of processor 44 enhances the infrared image of acquisition, and generation finally enhances image is：By infrared image
It preserves, identifies and extract the position of vein image；Pixel gray value in addition to extracting position is reduced, extraction position is increased
Gray value；By enhanced image transmitting to projection arrangement 43, enhanced infrared image is projected in the form of visible light
To target object 50.
Vein imaging system 40 further includes optical filter 46.
As shown in fig. 6, coaxially acquisition infrared vein system, infrared light supply 41 irradiate human body the back of the hand 50, reflection light is passed through
Heat mirror 48 is reflected into infrared eye 42, by processor 44, by enhanced picture transfer to projection arrangement 43, projection dress
43 are set in the form of visible light by lens group 47, picture after enhancing is covered on back of people's hand, is found in this way convenient for nurse
The vein of puncture.
In embodiments of the present invention, the infrared image of target object is acquired, wherein infrared image presents target object
The picture of vein become by bar graph by projection arrangement 43 with four dephased bar graphs of infrared light form flash
Phase difference value obtains project migration position before and after shape, to obtain projection physical location；It is again that infrared image is practical according to projection
Position projects infrared image in the form of visible light, coincides with target object, so that the image projection of the vein of target object is extremely
The vein position of target object is equivalent to and shows that the picture of vein, user can be in the vein position of target object
It is visually observed that the vein position of target object, the vein of easy-to-look-up target object are infrared quiet with coaxially acquiring
Vein system system compares, and simplifies the overall structure of system, reduces heat mirror 48 and lens group 47, reduces cost, in structure
It is compacter.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, and every utilize is said
Equivalent structure or equivalent process transformation made by bright book and accompanying drawing content are applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of vein imaging method based on structure light, which is characterized in that include the following steps：
To target object irradiating structure light image；
The structure light image on the target object is acquired by camera system, measures target location；
Infrared light is irradiated to target object；
The vein infrared image in the target object is acquired by camera system；
According to target location and the vein infrared image taken, by the vein image of the target object in the form of visible light
It is projected on the position where target object.
2. the vein imaging method according to claim 1 based on structure light, which is characterized in that
To target object irradiating structure light image；The structure light image on the object is acquired by camera system, measures mesh
Cursor position, specially：The structure light figure of projection is infrared stripes figure, obtains phase difference according to four-stepped switching policy, then by phase difference
Obtain the deviation post of projection.
3. the vein imaging method according to claim 1 based on structure light, which is characterized in that
To target object irradiating structure light image；The structure light image on the object is acquired by camera system, measures mesh
Cursor position, specially：The structure light figure of projection is that can striations figure be obtained phase difference, then by phase according to four-stepped switching policy
Difference obtains the deviation post of projection.
4. the vein imaging method according to claim 1 based on structure light, which is characterized in that further include：
Enhance the vein infrared image contrast, identifies the vein of the target object shown in the infrared image of enhancing
Picture；
The vein picture of the target object is carried out to highlight processing, generates final enhancing image.
5. the vein imaging method according to claim 4 based on structure light, which is characterized in that further include：
By projection arrangement to the enhancing image that target object projection is described in the form of visible light, and according to projection position
It sets so that the projection and target for enhancing image coincide, so that the target object shown in the final enhancing image
Vein is presented on the vein position of the target object.
6. the vein imaging method according to claim 4 based on structure light, which is characterized in that
Enhance the infrared image step of the target object, including：
The position for identifying image medium sized vein, by with the position of preservation；The gray value of other location of pixels is reduced, vein figure is promoted
The gray value of image position pixel；By the gray value for promoting pixel, final enhancing image is generated.
7. a kind of vein imaging system, including infrared light supply, infrared eye and projection arrangement；It is characterized in that：
The infrared light supply is for emitting infrared light, wherein the infrared light supply coverage goal object；
Infrared eye is for the infrared stripes figure of acquired projections and the infrared image of the target object；
Projection arrangement, for, to the target object projected fringe, being acquired by infrared eye infrared in the form of infrared light
Bar graph obtains projected position；There is throwing when certain angle according to projected position calculating projection arrangement and infrared eye optical axis
Shadow deviation, and compensate, then in the form of visible light the infrared image, the infrared image are projected to the target object
On position where the image projection to the vein of the target object of the vein of the target object of middle presentation.
8. vein imaging system according to claim 7, which is characterized in that the projection arrangement is configured with infrared and visible
Radiant, and configure light source switching mechanism.
9. a kind of vein imaging system, including infrared light supply, it is seen that optical projection device and photographic device, it is characterised in that：
The infrared light supply is for emitting infrared light, wherein the infrared light supply coverage goal object；
It can be seen that optical projection device is used to project visible striations to the target, and taken the photograph to target object projection in the form of visible light
As the vein infrared image for the target object that device is shot；
Photographic device is for the visible light bar graph of acquired projections and the vein infrared image of the target object；
Photographic device acquisition visible light bar graph obtains projected position；Projection arrangement and infrared photography dress are calculated according to projected position
The distortion that optical axis is set when having certain angle, and compensate, then in the form of visible light institute is projected to the target object
State infrared image, the image projection of the vein of the target object presented in the infrared image to the target object it is quiet
On position where arteries and veins.
10. vein imaging system according to claim 9, which is characterized in that the photographic device is configured with infrared and can
Light-exposed smooth colour filter, and configure colour filter switching device.
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| CN201810583396.5A CN108703745A (en) | 2018-06-07 | 2018-06-07 | Vein developing method based on structure light and vein imaging system |
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| CN201810583396.5A CN108703745A (en) | 2018-06-07 | 2018-06-07 | Vein developing method based on structure light and vein imaging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110163178A (en) * | 2019-05-28 | 2019-08-23 | Oppo广东移动通信有限公司 | Image processing method and Related product |
| CN110179439A (en) * | 2019-05-13 | 2019-08-30 | 江苏大学 | A kind of portable hand dorsal vein blood vessel aided positioning system and method |
| KR102176196B1 (en) * | 2019-07-09 | 2020-11-09 | (주)메디센텍 | Real-time detection device and method of superficial vein |
| KR102176200B1 (en) * | 2019-07-09 | 2020-11-09 | (주)메디센텍 | Real-time detection and method of blood flow |
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