CN104257378B - Volumetric blood flow pulse imaging system - Google Patents
Volumetric blood flow pulse imaging system Download PDFInfo
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- CN104257378B CN104257378B CN201410440383.4A CN201410440383A CN104257378B CN 104257378 B CN104257378 B CN 104257378B CN 201410440383 A CN201410440383 A CN 201410440383A CN 104257378 B CN104257378 B CN 104257378B
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- light source
- photographic device
- blood flow
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- 230000017531 blood circulation Effects 0.000 title claims abstract description 34
- 238000003384 imaging method Methods 0.000 title claims abstract description 32
- 238000005286 illumination Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 6
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000036772 blood pressure Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
-
- 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
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0242—Operational features adapted to measure environmental factors, e.g. temperature, pollution
Abstract
A kind of volumetric blood flow pulse imaging system,Including processor device,Photographic device and self-adapting illumination device,The self-adapting illumination device and the photographic device are electrically connected with the processor device,The photographic device is treated detection position and is imaged,And the image data of acquisition is transmitted to the processor device,The processor device receives described image data,And analyzing processing is carried out to described image data to obtain the operating brightness when photographic device is imaged,When an operating brightness reference brightness value preset less than the processor device,The processor device generates a compensation brightness according to the reference brightness value and the difference of the operating brightness,And the compensation brightness is fed back into the self-adapting illumination device,The self-adapting illumination device adjusts brightness of illumination according to the compensation brightness,So that the operating brightness of the photographic device matches with the reference brightness value.
Description
Technical field
The present invention relates to medical imaging field more particularly to a kind of volumetric blood flow pulse imaging systems.
Background technology
Physiologic information detection is to assess one of the important method of physiological health, thus work out quick, accurate physiology letter
Breath detection method has great importance.It is imaged using volumetric blood flow pulse and carries out the research direction that physiologic information detection is current
One of, principle is the influence to transmission and the reflection of light according to blood constituent in blood vessel and volume change, by obtaining epidermis
Skin volumetric blood flow pulse image, by signal processing with extraction, to obtain corresponding physiologic information, such as pulse frequency, Hemodynamic environment
Degree, blood pressure etc..
Camera is not when be imaged by common camera, and be imaged since volumetric blood flow pulse is imaged
It needs to enter in body body, and continuous imaging in real time can be carried out, life is detected by this continuous contactless mode
Information is managed, physiologic information detection can be made to become more convenient.Therefore, volumetric blood flow pulse imaging technique is for movement
The promotion and popularization of medical treatment have important practical significance.
However, the existing volumetric blood flow pulse imaging system using common camera imaging carries out physiologic information detection
Accuracy rate depends on the light intensity of environment, and in the case that environmental light intensity is moderate, the signal-to-noise ratio variation of volumetric blood flow pulse imaging is not
Obviously, thus higher Detection accuracy can be obtained；But when environmental light intensity is too strong or too weak, the mistake of detection can be caused
Rate increases, and cannot meet a wide range of, multi-environment requirement.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of volumetric blood flow pulse imaging system, pass through design
One self-adapting illumination device realizes the purpose of automatic compensation environment illumination intensity, improves volumetric blood flow pulse imaging system and exist
Detection accuracy in the case that light intensity is weaker or light intensity is unstable.
The present invention provides a kind of volumetric blood flow pulse imaging system, including processor device, photographic device and adaptive photograph
Bright device, the self-adapting illumination device and the photographic device are electrically connected with the processor device, the photographic device
It treats detection position to be imaged, and the image data of acquisition is transmitted to the processor device, the processor device connects
Described image data are received, and it is bright with work when obtaining the photographic device imaging to carry out analyzing processing to described image data
Degree, when an operating brightness reference brightness value preset less than the processor device, the processor device is according to institute
The difference for stating reference brightness value and the operating brightness generates a compensation brightness, and the compensation brightness is fed back to described adaptive
Lighting device, the self-adapting illumination device adjusts brightness of illumination according to the compensation brightness, so that the work of the photographic device
Make brightness with the reference brightness value to match.
Wherein, the self-adapting illumination device includes fixing piece and several light sources, and several peaces are provided on the fixing piece
Hole is filled, the light source is installed in the mounting hole.
Wherein, the fixing piece is in circular ring shape, and several mounting holes are arranged in circular ring shape, to which the light source surrounds one
A circle, to ensure uniform irradiation.
Wherein, the self-adapting illumination device further includes driving device, and the driving device is set in the fixing piece,
And it is electrically connected with the light source and the processor device, the compensation that the driving device is sent according to the processor device
Brightness generates the driving current being adapted to the compensation brightness, to drive the light source to send out the brightness of adaptation.
Wherein, the photographic device is set to the center for the circle that the light source surrounds.
Wherein, the mounting hole is arranged in square, rectangle or triangle, to which the light source surrounds a square, square
Shape or triangle, the photographic device are set to the center of square, rectangle or triangle that the light source surrounds.
Wherein, the light source is the half of incandescent lamp or semiconductor light-emitting-diode or different wave length with specific wavelength
The combination of conductor light emitting diode.
Wherein, a default signal-to-noise ratio is arranged in the processor device, and the reference brightness value generates for the photographic device
Brightness of image data when meeting default signal-to-noise ratio.
Wherein, the photographic device is CMOS, NMOS or CCD.
Wherein, when the operating brightness is more than or equal to the reference brightness value, the processor device does not generate described
Compensation brightness, and then the self-adapting illumination device does not start.
Volumetric blood flow pulse imaging system provided in an embodiment of the present invention is adjusted by the way that a self-adapting illumination device is added
Save the brightness when photographic device imaging so that the photographic device is imaged under a preferable brightness of illumination, to change
It is accurate physiologic information detection of the volumetric blood flow pulse imaging system in the case where light intensity is insufficient or light intensity is unstable has been apt to
Property, it ensure that the accuracy rate of physiologic information detection.In addition, volumetric blood flow pulse imaging system provided by the invention has operation letter
Just, the advantages that at low cost, meets the requirement under different external environments.
Description of the drawings
In order to illustrate more clearly of technical scheme of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the module diagram of volumetric blood flow pulse imaging system provided in an embodiment of the present invention.
Fig. 2 is the mounting structure schematic diagram of the photographic device and the self-adapting illumination device.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of volumetric blood flow pulse imaging system 100, it is to be detected for obtaining
The volumetric blood flow pulse image at position (such as skin), and by the way that the volumetric blood flow pulse image is analyzed and extracted, with
Corresponding physiologic information is obtained, e.g., the physiologic informations such as pulse frequency, blood flow velocity, blood pressure.
The volumetric blood flow pulse imaging system 100 includes processor device 10, photographic device 20 and adaptive illumination dress
Set 30, the photographic device 20 and the self-adapting illumination device 30 are electrically connected with the processor device 10, it is described from
Adaptating lighting device 30 has different brightness of illumination, and the brightness of illumination can be controlled by the processor device 10
It adjusts.The photographic device 20 is imaged the position to be detected, and will image data that imaging obtains be transmitted to it is described
Processor device 10, the processor device 10 receive described image data, and by being carried out at image to described image data
Reason obtains the operating brightness (i.e. the brightness of external environment) when the photographic device 20 is imaged with analysis in turn；The processor dress
Set a 10 default reference brightness values, when the operating brightness is less than the reference brightness value, 10 basis of the processor device
The difference of the operating brightness and the reference brightness value generates a compensation brightness (when the operating brightness is more than or equal to the reference
When brightness value, the self-adapting illumination device 30 does not start then), and the compensation brightness is fed back into the adaptive illumination and is filled
30 are set, the self-adapting illumination device 30 sends out the light of respective strengths according to the compensation brightness automatically, so that the camera shooting fills
20 operating brightness is set close or equal to the reference brightness value (the i.e. operating brightness and the reference brightness of the photographic device 20
Value matches), to which the photographic device 20 carries out volumetric blood flow pulse imaging under the lighting condition of reference brightness value, improve
The accuracy of physiologic information testing result.
In embodiments of the present invention, the processor device 10 can be computer or SCM system, with the camera shooting
Device 20 and the self-adapting illumination device 30 are electrically connected, and image data for receiving the acquisition of the photographic device 20 and
The signal that the compensation brightness is fed back to the self-adapting illumination device 30, it is bright with the illumination for adjusting the self-adapting illumination device 30
Degree.Specifically, the processor device 10 carries out image procossing by the image data transmitted to the photographic device 20 and divides
Analysis, and then obtain the 20 real-time operating brightness of photographic device, and according to preset reference brightness value with work in real time it is bright
Luminance difference between degree generates the compensation brightness.It should be noted that when the real-time operating brightness is higher than the reference
When brightness value, the processor device 30 does not generate the compensation brightness.
Wherein, the reference brightness value can obtain by the following method：The photographic device 20 is obtained in different brightness
Irradiate the image data of environment；The processor device 10 calculates the institute under the irradiation environment of different brightness of the photographic device 20
The signal-to-noise ratio of the image data of acquisition；And brightness when meeting default signal-to-noise ratio is set as referring to by the processor device 10
Brightness value.
Also referring to Fig. 2, in embodiments of the present invention, the self-adapting illumination device 30 includes fixing piece 31 and multiple
Light source 32, the fixing piece 31 can be in circular ring shape, and offering several mounting holes for fixing the light source 32 thereon, (figure is not
Mark).Wherein, several mounting holes can be arranged in circular ring shape, to which the light source 32 forms a circle, the photographic device
20 are set to the centre of the self-adapting illumination device 30, that is, are located substantially at the center for the circle that the light source 32 surrounds.
Preferably, several mounting holes are equally spaced opened on the fixing piece 31, and it is arranged in annular shape, the photographic device
20 are set to the centre of the self-adapting illumination device 30, that is, are located substantially at the centre bit for the circle that the multiple light source 32 surrounds
It sets, to ensure that the position to be detected can be by 32 uniform irradiation of the light source, to obtain preferably illumination and imaging effect.
It is understood that in other embodiments of the invention, the fixing piece 31 may be alternatively provided as other shapes, such as
Rectangle, square, triangle, other polygons or irregular shape are can be set to, the mounting hole can be also arranged in
Rectangle, square, triangle, arbitrary polygon or other irregular shapes, the photographic device 20 are set to the light
The center of rectangle, square, triangle, arbitrary polygon or other irregular shapes that source 32 surrounds, as long as protecting
Demonstrate,proving the detection site can be by the structure design of 32 uniform irradiation of light source of the self-adapting illumination device 30 in the present invention
Protection domain within, details are not described herein.
In embodiments of the present invention, the self-adapting illumination device 30 further includes driving device 33, the driving device 33
It is electrically connected with the processor device 10 and the multiple light sources 32.The driving device 33 is mountable to the fixing piece
It inside 31, and is electrically connected with each light source 32, to provide driving current to each light source 32, and then adjusts each light source 32
Brightness of illumination.The processor device 10 feeds back the compensation brightness, 33 basis of the driving device to the driving device 33
The compensation brightness generates the driving current of adaptation, and drives the light source 32 to send out and be adapted to brightness of illumination with the driving current
Light, to make the photographic device 20 operating brightness be close or equal to the reference brightness value.
It should be noted that in embodiments of the present invention, the light source 32 can select according to the actual needs inhomogeneity
The light source of type can be such as incandescent lamp, or be semiconductor light-emitting-diode (the Light Emitting with specific wavelength
Diode, LED) or LED light with different wave length combination.Wherein, the wavelength of the LED light can be waited for according to described
The physiological characteristic and form of detection position are selected, and the present invention is not specifically limited this.
It should be noted that in embodiments of the present invention, the photographic device 20 can be but be not limited to：Charged Couple member
Part (Charge-coupled Device, CCD), complementary metal oxide semiconductor (Complementary Metal Oxide
Semiconductor, CMOS) or N-type metal-oxide semiconductor (MOS) (N Mental Oxide Semiconductor, NMOS),
Its image-forming principle can be electronic imaging, optical imagery or imaging fiber etc..
Also referring to Fig. 1 and Fig. 2, before use, the processor device 10 is by calculating the photographic device 20 not
It is labeled as reference brightness value with the signal-to-noise ratio of the image data obtained under brightness, and by the brightness for meeting the default signal-to-noise ratio,
And preserve the reference brightness value.In use, the photographic device 20 is directed at the position to be detected, such as the skin of human body
Position, at this point, the adaptive lighting system 30 is closed, the photographic device 20 is in natural light (or indoor lamp
Light) irradiation condition under, the band detection position is shot, and image data is transmitted to the processor device 10,
The processor device 10 according to described image data calculate obtain current operating brightness (i.e. under current environment natural light or
The brightness of person's indoor light).Wherein, the acquisition of the operating brightness can be that sampled point is calculated by taking scene center point,
It can also be calculated using taking multiple spot to do sampled point in the scene.Then, the processor device 10 judges that the work is bright
Whether degree is less than the reference brightness value, if so, the processor device 10 is bright according to the operating brightness and the reference
The difference of angle value, and one compensation brightness of calculating generation (when the operating brightness is more than or equal to the reference brightness value, then the processing
Device device 10 does not generate compensation brightness), and the compensation brightness is transmitted to the adaptive lighting system 30.It is described adaptive
The driving device 33 of lighting system 30 generates the driving current being adapted to the compensation brightness according to the compensation brightness, described
Driving current drives the light source 32 to emit beam, so that the operating brightness of the photographic device 20 is close or equal to the reference
Brightness value.At this point, the photographic device 20 is imaged the position to be detected under the lighting condition of reference brightness value, obtain
The image data of the volumetric blood flow pulse image is taken, and using the processor device 10 to the volumetric blood flow pulse image
Carry out signal processing and extraction, you can the physiologic information at the position to be detected, such as pulse frequency, blood flow velocity, blood pressure are obtained, from
And realize physiological detection.Due to the photographic device 20 in imaging under the reference brightness value, hereby it is ensured that physiology letter
Cease the accuracy of testing result.
In conclusion volumetric blood flow pulse imaging system 100 provided in an embodiment of the present invention, adaptive by being added one
Lighting device 30 adjusts the brightness when photographic device 20 is imaged so that the photographic device 20 is in a preferable brightness of illumination
Under be imaged, so as to improve the volumetric blood flow pulse imaging system 100 in the situation that light intensity is insufficient or light intensity is unstable
Under physiologic information detection accuracy, ensure that physiologic information detection accuracy rate.In addition, volumetric blood flow arteries and veins provided by the invention
Imaging system of fighting 100 has many advantages, such as easy to operate, at low cost, requirement of the satisfaction under different external environments.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of volumetric blood flow pulse imaging system, the volumetric blood flow pulse image for obtaining position to be detected, and by right
The volumetric blood flow pulse image is analyzed and is extracted, to obtain corresponding physiologic information, the volumetric blood flow pulse imaging
System includes processor device and photographic device, which is characterized in that the volumetric blood flow pulse imaging system further includes adaptive
Lighting device, the self-adapting illumination device and the photographic device are electrically connected with the processor device, described adaptive
Lighting device includes fixing piece, several light sources and driving device, and the driving device is set in the fixing piece, and with it is described
Light source and the processor device are electrically connected, and the compensation brightness that the driving device is sent according to the processor device is raw
At the driving current being adapted to the compensation brightness, to drive the light source to send out the brightness of adaptation；The photographic device is treated
Detection position is imaged, and the image data of acquisition is transmitted to the processor device, and the processor device receives institute
Image data is stated, and to the progress analyzing processing of described image data to obtain the operating brightness when photographic device is imaged, when
When the operating brightness is less than a processor device preset reference brightness value, the processor device is according to the reference
The difference of brightness value and the operating brightness generates a compensation brightness, and the compensation brightness is fed back to the adaptive illumination and is filled
It sets, the self-adapting illumination device adjusts brightness of illumination according to the compensation brightness, so that the operating brightness of the photographic device
Match with the reference brightness value, wherein the acquisition of the operating brightness is that sampled point is counted by taking scene center point
It calculates；The reference brightness value obtains by the following method：The photographic device obtains the image in the irradiation environment of different brightness
Data；The processor device calculates the letter for the image data that the photographic device is obtained under the irradiation environment of different brightness
It makes an uproar and compares, the processor device sets brightness when meeting default signal-to-noise ratio to the reference brightness value, wherein is described default
Signal-to-noise ratio is arranged by the processor device, and the reference brightness value meets default for the image data that the photographic device generates
Brightness when signal-to-noise ratio.
2. system according to claim 1, which is characterized in that be provided with several mounting holes, the light on the fixing piece
Source is installed in the mounting hole.
3. system according to claim 2, which is characterized in that the fixing piece is in circular ring shape, several mounting hole rows
Circular ring shape is arranged into, to which the light source forms a circle, to ensure uniform irradiation.
4. system according to claim 3, which is characterized in that the photographic device is set to the circle that the light source surrounds
Center.
5. system according to claim 2, which is characterized in that the mounting hole is arranged in square, rectangle or triangle,
To which the light source surrounds a square, rectangle or triangle, the photographic device be set to the square that the light source surrounds,
The center of rectangle or triangle.
6. system according to claim 3, which is characterized in that the light source is incandescent lamp or the light source is with spy
Semiconductor light-emitting-diode or the light source that standing wave is grown are the combination of the semiconductor light-emitting-diode of different wave length.
7. system according to claim 1, which is characterized in that the photographic device is CMOS, NMOS or CCD.
8. system according to claim 1, which is characterized in that when the operating brightness is more than or equal to the reference brightness value
When, the processor device does not generate the compensation brightness, and then the self-adapting illumination device does not start.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410440383.4A CN104257378B (en) | 2014-09-01 | 2014-09-01 | Volumetric blood flow pulse imaging system |
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| CN201410440383.4A CN104257378B (en) | 2014-09-01 | 2014-09-01 | Volumetric blood flow pulse imaging system |
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| CN104257378A CN104257378A (en) | 2015-01-07 |
| CN104257378B true CN104257378B (en) | 2018-11-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10722127B2 (en) | 2015-03-13 | 2020-07-28 | Koninklijke Philips N.V. | Photoplethysmography device |
| CN107222687B (en) * | 2016-03-21 | 2020-12-18 | 联想(北京)有限公司 | Electronic device, control method and control device thereof |
| CN107260155A (en) * | 2016-04-07 | 2017-10-20 | 动心医电股份有限公司 | Detect the method and its device of velocity of blood flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791345A (en) * | 1993-09-03 | 1998-08-11 | Toa Medical Electronics Co., Ltd. | Non-invasive blood analyzer |
| CN101380225A (en) * | 2007-09-04 | 2009-03-11 | 北京大学 | Method and device for collecting blood-vessel image under near infrared light |
| CN102458215A (en) * | 2009-06-10 | 2012-05-16 | 奥林巴斯医疗株式会社 | Capsule type endoscope device |
| CN103106399A (en) * | 2013-01-28 | 2013-05-15 | 天津理工大学 | Intelligent dorsal hand vein image collecting device |
| CN102370452B (en) * | 2011-10-13 | 2014-04-30 | 深圳市理邦精密仪器股份有限公司 | Method and device for automatically adjusting brightness of light source of electronic colposcope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070027362A1 (en) * | 2005-07-27 | 2007-02-01 | Olympus Medical Systems Corp. | Infrared observation system |
| CN202801583U (en) * | 2012-06-29 | 2013-03-20 | 西双版纳大渡云海生物科技发展有限公司 | Non-contact physiologic parameter monitoring system |
-
2014
- 2014-09-01 CN CN201410440383.4A patent/CN104257378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791345A (en) * | 1993-09-03 | 1998-08-11 | Toa Medical Electronics Co., Ltd. | Non-invasive blood analyzer |
| CN101380225A (en) * | 2007-09-04 | 2009-03-11 | 北京大学 | Method and device for collecting blood-vessel image under near infrared light |
| CN102458215A (en) * | 2009-06-10 | 2012-05-16 | 奥林巴斯医疗株式会社 | Capsule type endoscope device |
| CN102370452B (en) * | 2011-10-13 | 2014-04-30 | 深圳市理邦精密仪器股份有限公司 | Method and device for automatically adjusting brightness of light source of electronic colposcope |
| CN103106399A (en) * | 2013-01-28 | 2013-05-15 | 天津理工大学 | Intelligent dorsal hand vein image collecting device |
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