CN208210129U - A kind of near infrared imaging system - Google Patents
A kind of near infrared imaging system Download PDFInfo
- Publication number
- CN208210129U CN208210129U CN201820861860.8U CN201820861860U CN208210129U CN 208210129 U CN208210129 U CN 208210129U CN 201820861860 U CN201820861860 U CN 201820861860U CN 208210129 U CN208210129 U CN 208210129U
- Authority
- CN
- China
- Prior art keywords
- near infrared
- infrared camera
- light
- image
- camera
- 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.)
- Withdrawn - After Issue
Links
- 238000003333 near-infrared imaging Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000002329 infrared spectrum Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Abstract
The utility model discloses a kind of near infrared imaging systems, utilize two near infrared cameras, detect the near infrared spectrum in environment light with distinguishing wave band, the influence of bias light, guarantees the quality and sensitivity of useful near-infrared image when then eliminating near infrared imaging in real time by algorithm.
Description
Technical field
The utility model relates to optical imaging field more particularly to a kind of near infrared imaging systems.
Background technique
In recent years, near infrared imaging is widely used in blood vessel imaging, organ transplant, plastic and reconstructive, Wound care, tumour
Boundary demarcation etc..But due to external environmental light, such as operating lamp, there is also near-infrared spectral coverages, will form near infrared imaging
Ambient noise influences picture quality and sensitivity.For guarantee picture quality, generally required when using near infrared imaging close or
Other light are dimmed, dimming light will affect surgical light, cause inconvenience for surgical procedure and diagnosis.
Currently, there is academic article report using stroboscopic illumination, bias light influence is eliminated by the difference of before and after frames image,
Obtain useful near-infrared image information.But this method has that frame per second is low, and when observed group is woven with movement
When, position can be caused to judge by accident previous frame profile as being that useful signal extracts.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The purpose of this utility model is to provide a kind of near infrared imaging systems, it is intended to which there is presently no schemes to have for solution
Effect solves the problem of that external environmental light forms ambient noise near infrared imaging and influences picture quality and sensitivity.
The technical solution of the utility model is as follows: a kind of near infrared imaging system, wherein including lens, dichroic light splitting
Mirror, the first band pass filter, the first near infrared camera, the second band pass filter, the second near infrared camera, image processing module；
First near infrared camera and the second near infrared camera are connect with image processing module respectively；
Near infrared light is collected and is focused by lens, and dichroic beamsplitter is incident on；Wherein, shortwave part near infrared light penetrates
After dichroic beamsplitter and the first band pass filter, the first near infrared camera is imaged in；Long wavelength part near infrared light is by dichroic
Spectroscope reflection, and the second near infrared camera is imaged in after penetrating the second band pass filter；Wherein, the first near infrared camera and
The imaging picture overmatching of two near infrared cameras, image reach Pixel-level coincidence；First near infrared camera and second close red
The image transmitting of outer camera is to image processing module, the near-infrared image for the bias light that is eliminated after algorithm process.
The near infrared imaging system, wherein the near infrared light chooses the light wave that wavelength is 800 ~ 900nm.
The near infrared imaging system, wherein the wavelength of the first near infrared camera detecting band between 800 ~ 850nm it
Between, the wavelength of the second near infrared camera detecting band is between 850 ~ 900nm.
The utility model has the beneficial effects that the utility model is by providing a kind of near infrared imaging system, it is close using two
Infrared camera detects the near infrared spectrum in environment light, when then eliminating near infrared imaging in real time by algorithm with distinguishing wave band
The influence of bias light guarantees the quality and sensitivity of useful near-infrared image.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of near infrared imaging system in the utility model.
Fig. 2 is the step flow chart of the bias light removing method of near infrared imaging system in the utility model.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
As shown in Figure 1, a kind of near infrared imaging system, including lens 1, dichroic beamsplitter 2, the first band pass filter 3,
First near infrared camera 4, the second band pass filter 5, the second near infrared camera 6, image processing module 7；First near infrared camera 4
It is connect respectively with image processing module 7 with the second near infrared camera 6；
Near infrared light is collected and is focused by lens 1, and dichroic beamsplitter 2 is incident on；Wherein, shortwave part near infrared light is saturating
After crossing dichroic beamsplitter 2 and the first band pass filter 3, the first near infrared camera 4 is imaged in；Long wavelength part near infrared light is by two
It is reflected to color spectroscope 2, and images in the second near infrared camera 6 after penetrating the second band pass filter 5；Wherein, the first near-infrared
The imaging picture overmatching of camera 4 and the second near infrared camera 6, image reach Pixel-level coincidence；First near infrared camera 4
Image transmitting with the second near infrared camera 6 to image processing module 7, the bias light that is eliminated after algorithm process it is close red
Outer image.
Specifically, the effect of first band pass filter 3 and the second band pass filter 5 is mentioned to detecting band
It is pure.Preferably, near infrared band chooses the light wave that wavelength is 800 ~ 900nm, wherein 4 detecting band of the first near infrared camera
Wavelength is between 800 ~ 850nm, and the wavelength of 6 detecting band of the second near infrared camera is between 850 ~ 900nm.
As shown in Fig. 2, a kind of bias light removing method of near infrared imaging system as described above, specifically includes following
Step:
Step S1: near infrared light is collected and is focused by lens 1, is incident on dichroic beamsplitter 2；
Step S2: where after shortwave part near infrared light is through dichroic beamsplitter 2 and the first band pass filter 3, imaging
In the first near infrared camera 4；Long wavelength part near infrared light is reflected by dichroic beamsplitter 2, and through after the second band pass filter 5
Image in the second near infrared camera 6；
The image transmitting of step the S3: the first near infrared camera 4 and the second near infrared camera 6 passes through to image processing module 7
Be eliminated the near-infrared image of bias light after algorithm process.
Wherein, in order to guarantee the effect of image, the imaging picture of first near infrared camera 4 and the second near infrared camera 6
Face has already passed through matching, and image reaches Pixel-level coincidence.
Specifically, photosensitive in order to enable the first near infrared camera 4 and the second near infrared camera 6 to carry out under conditions of equivalent
Imaging, in step s3, image processor 7 is exposed control to the first near infrared camera 4 and the second near infrared camera 6 simultaneously
System.
Specifically, to prevent overexposure from information being caused to lose, in step s3, image processing module 7 can be simultaneously according to first
The image of near infrared camera 4 and the second near infrared camera 6 is exposed calculating respectively, chooses the smaller value in the two as exposure
Setting, while controlling the first near infrared camera 4 and the second near infrared camera 6 and being exposed according to exposure setting.
Specifically, pass through the following near-infrared image for operating the bias light that is eliminated: in advance under simple ambient light illumination
It is imaged, image processing module 7 is obtained corresponding between the first near infrared camera 4 and the second near infrared camera 6 by operation
Brightness multiple proportion；In use, the image of the first near infrared camera 4 subtracts the second near-infrared phase of corresponding bright multiple
The image of machine 6, then take absolute value, the near-infrared image for eliminating bias light can be obtained.It is said especially by following embodiment
It is bright:
For example, before use, taking pictures under operating lamp, for specific pixel, the bias light of the first near infrared camera 4
Brightness value is N1, and the background light level value of the second near infrared camera 6 is N2, and the multiple proportion for acquiring N1 and N2 is: X=N1/
N2；
In the course of surgery, while with the presence of operating lamp and near infrared signal light, at this point, first is close for the pixel
The brightness value of infrared camera 5 is L1, respective background brightness values N1 ', useful near infrared light brightness value F1；Second near infrared camera
7 brightness value is L2, respective background brightness values N2 ', useful near infrared light brightness value F2；Wherein:
L1=N1’+F1;
L2=N2'+F2；
Since operating lamp spectrum is in the constant rate of two cameras, so, multiple proportion is constant, therefore: N1 '-X*N2 '=0
Extract the near infrared signal brightness values of removal background noise interference are as follows:
F = |L1-X*L2|
= |N1’+F1-X*N2’-X*F2|
= |F1-X*F2|。
The technical program utilizes two near infrared cameras (the first near infrared camera 4 and the second near infrared camera 6), distinguishes wave
Near infrared spectrum in section ground detection environment light, the influence of bias light when then eliminating near infrared imaging in real time by algorithm are protected
Demonstrate,prove the quality and sensitivity of useful near-infrared image.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation
In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (3)
1. a kind of near infrared imaging system, which is characterized in that including lens, dichroic beamsplitter, the first band pass filter, first
Near infrared camera, the second band pass filter, the second near infrared camera, image processing module；First near infrared camera and second is closely
Infrared camera is connect with image processing module respectively；
Near infrared light is collected and is focused by lens, and dichroic beamsplitter is incident on；Wherein, shortwave part near infrared light through two to
After color spectroscope and the first band pass filter, the first near infrared camera is imaged in；Long wavelength part near infrared light is divided by dichroic
Mirror reflection, and the second near infrared camera is imaged in after penetrating the second band pass filter；Wherein, the first near infrared camera and second close
The imaging picture overmatching of infrared camera, image reach Pixel-level coincidence；First near infrared camera and the second near-infrared phase
The image transmitting of machine is to image processing module, the near-infrared image for the bias light that is eliminated after algorithm process.
2. near infrared imaging system according to claim 1, which is characterized in that the near infrared light choose wavelength be 800 ~
The light wave of 900nm.
3. near infrared imaging system according to claim 2, which is characterized in that the wave of the first near infrared camera detecting band
Length is between 800 ~ 850nm, and the wavelength of the second near infrared camera detecting band is between 850 ~ 900nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861860.8U CN208210129U (en) | 2018-06-05 | 2018-06-05 | A kind of near infrared imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861860.8U CN208210129U (en) | 2018-06-05 | 2018-06-05 | A kind of near infrared imaging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208210129U true CN208210129U (en) | 2018-12-07 |
Family
ID=64496753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820861860.8U Withdrawn - After Issue CN208210129U (en) | 2018-06-05 | 2018-06-05 | A kind of near infrared imaging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208210129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828770A (en) * | 2018-06-05 | 2018-11-16 | 广东欧谱曼迪科技有限公司 | A kind of bias light removing method and system suitable near infrared imaging |
-
2018
- 2018-06-05 CN CN201820861860.8U patent/CN208210129U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828770A (en) * | 2018-06-05 | 2018-11-16 | 广东欧谱曼迪科技有限公司 | A kind of bias light removing method and system suitable near infrared imaging |
| CN108828770B (en) * | 2018-06-05 | 2024-02-23 | 广东欧谱曼迪科技有限公司 | Background light elimination method and system suitable for near infrared imaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100777428B1 (en) | Image processing device and method | |
| US8118430B2 (en) | Opthalmologic imaging apparatus and opthalmologic imaging method | |
| CN109788207A (en) | Image composition method, device, electronic equipment and readable storage medium storing program for executing | |
| EP3040021A1 (en) | Organ imaging apparatus | |
| CN101399914B (en) | Image capture device and image capture method | |
| CN101937563A (en) | Target detection method and equipment and image acquisition device thereof | |
| CN103379281A (en) | Image processing apparatus and image processing method for performing image synthesis | |
| CN109276231A (en) | A kind of imaging system and imaging method | |
| JP2917953B2 (en) | View point position detection device | |
| CN110365878A (en) | A kind of photographic device and method | |
| US8823863B2 (en) | Image capturing apparatus and control method therefor | |
| EP2962621A1 (en) | Image processing device, endoscope device, image processing method, and image processing program | |
| CN109688317A (en) | A kind of video camera and image generating method | |
| CN105320926B (en) | Fingerprint sensor | |
| JP2017208616A (en) | Image processing apparatus, image processing method, and program | |
| CN208210129U (en) | A kind of near infrared imaging system | |
| CN109756680A (en) | Image composition method, device, electronic equipment and readable storage medium storing program for executing | |
| EP2962622A1 (en) | Image processing device, endoscope device, image processing method, and image processing program | |
| TWM352055U (en) | Image projection and capture apparatus | |
| CN106934349A (en) | Dual camera is imaged and iris capturing identification integration apparatus | |
| CN108828770A (en) | A kind of bias light removing method and system suitable near infrared imaging | |
| JP6476610B2 (en) | Dermoscopy imaging apparatus, control method therefor, and program | |
| CN102655565B (en) | Anti-red-eye portrait shooting system and method | |
| CN104811614A (en) | Camera system, especially for a vehicle, and method for ascertaining image information of a signal source pulsed as a function of time | |
| CN108416281A (en) | A kind of video camera applied to iris recognition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528253 Room 503, Floor 5, Building A, Jingu Zhichuang Industrial Community, No. 2, Yong'an North Road, Dawu Community, Guicheng Street, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: Guangdong Oupu Mandi Technology Co.,Ltd. Address before: 528251 504, block a, Jingu optoelectronics, No.1, Yong'an North Road, Nanhai District, Foshan City, Guangdong Province Patentee before: GUANGDONG OPTOMEDIC TECHNOLOGY CO.,LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20240223 |