CN109044269A - A kind of reflective lighting system for machine vision - Google Patents
A kind of reflective lighting system for machine vision Download PDFInfo
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- CN109044269A CN109044269A CN201810356289.9A CN201810356289A CN109044269A CN 109044269 A CN109044269 A CN 109044269A CN 201810356289 A CN201810356289 A CN 201810356289A CN 109044269 A CN109044269 A CN 109044269A
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- path adjustment
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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
- A61B5/4854—Diagnosis based on concepts of traditional oriental medicine
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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
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
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- Heart & Thoracic Surgery (AREA)
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention provides a kind of reflective lighting systems for machine vision, comprising: graph data generating means can generate the graph data illuminated required for machine vision；Optical signalling output device, the optical signalling of illumination required for machine vision capable of being exported according to the graph data；Optical path adjustment device can be adjusted the optical path of the optical signalling, so that the optical signalling provides illumination in a desired manner for measurand；The optical path adjustment device includes multiple optical path adjustment units, and the graph data includes graphic element corresponding with each optical path adjustment unit.The present invention can more precisely control the optical path of lighting system, to avoid the appearance of reflective phenomenon and overexposure region, improve the quality of the tongue image of the patient of acquisition, guarantee the correct of subsequent image analysis and diagnosis.
Description
Technical field
The present invention relates to a kind of lighting systems for machine vision, are especially used for tcm diagnosis expert system or auxiliary
The lighting system of diagnostic system.
Background technique
" prestige " that lingual diagnosis belongs in the Chinese medicine four methods of diagnosis is examined, and tcm diagnosis mode is important.Lingual diagnosis only needs the tongue picture of patient,
Without the auxiliary of complex diagnostics instrument, have the characteristics that at low cost, effect is good, interference of traditional lingual diagnosis by external factor,
It cannot be guaranteed that the objectivity of diagnostic result, therefore the automation of TCM tongue diagnosis, the research that objectifies are of great significance.
Machine vision is fast-developing branch of artificial intelligence.In brief, machine vision is exactly to use machine
It measures and judges instead of human eye.NI Vision Builder for Automated Inspection is by machine vision product (i.e. image-pickup device, such as CMOS
And CCD) target will be ingested be converted into picture signal, it sends dedicated image processing system to, obtains the form of target subject
Information is transformed into digitized signal according to the information such as pixel distribution and brightness, color;Picture system carries out these signals each
Operation is planted to extract clarification of objective, and then controls the device action at scene according to the result of differentiation.
Existing image-pickup device can be sent out using lighting systems such as flash lamp, LED when the Image Acquisition for lingual diagnosis
Raw reflective phenomenon is difficult to differentiate between to form the overexposure region of white on tongue picture with the tongue fur region of white.Therefore, originally
Field need it is a kind of for for tongue picture diagnosis NI Vision Builder for Automated Inspection lighting system, can be avoided it is reflective caused by interference,
Improve picture quality.
Summary of the invention
The purpose of the present invention is to provide a kind of lighting systems for the NI Vision Builder for Automated Inspection for the diagnosis of tongue picture, can
Avoid it is reflective caused by interference, improve picture quality.
Technical scheme is as follows.
A kind of lighting system for machine vision, comprising:
Graph data generating means can generate the graph data illuminated required for machine vision；
Optical signalling output device, the optics letter of illumination required for machine vision capable of being exported according to the graph data
Number；
Optical path adjustment device can be adjusted the optical path of the optical signalling, so that the optical signalling is with required
Mode provide illumination for measurand；
It is characterized in that, the optical path adjustment device includes multiple optical path adjustment units, the graph data includes and each light
The corresponding graphic element of road adjustment unit.
Preferably, the optical signalling of the graphic element is output to corresponding optical path tune by the optical signalling output device
On whole unit.
Preferably, the optical path adjustment device includes a bracket, and the multiple optical path adjustment unit is set to the bracket
On, and the optical signalling of corresponding graphic element can be reflected into measurand respectively.
Preferably, the bracket is substantially in a ring.
Preferably, the multiple optical path adjustment unit is distributed generally uniformly on the bracket.
Preferably, the optical path adjustment unit includes plane mirror.
Preferably, the graph data includes a graphic element that can cover whole optical path adjustment units.
Preferably, the graph data includes multiple graphic elements, and each graphic element at least corresponds to a light
Road adjustment unit.
Another aspect provides a kind of tongues as diagnostic device, including control device, image acquiring device, and
The lighting system according to any one of above technical scheme.
Preferably, the optical signalling of the lighting system output is white light.
By above technical scheme, the present invention can more precisely control the optical path of lighting system, to avoid reflective
The appearance of phenomenon and overexposure region improves the quality of the tongue image of the patient of acquisition, guarantee subsequent image analysis and examines
Disconnected is correct.
Detailed description of the invention
Fig. 1 is lighting system structure schematic diagram of the invention.
Fig. 2 is tongue according to the present invention as diagnostic system structural schematic diagram.
Fig. 3 is lingual diagnosis image schematic diagram.
The meaning of each appended drawing reference is as follows in figure:
P optical signalling output device, the face for the patient that F is observed, the tongue for the patient that T is observed, the adjustment of M optical path are single
Member, G bracket.
Specific embodiment
Embodiment 1
As shown in Fig. 1, a kind of lighting system for machine vision is present embodiments provided, comprising:
Graph data generating means can generate the graph data illuminated required for machine vision；
Optical signalling output device, the optics letter of illumination required for machine vision capable of being exported according to the graph data
Number；
Optical path adjustment device can be adjusted the optical path of the optical signalling, so that the optical signalling is with required
Mode provide illumination for measurand；
Wherein, the optical path adjustment device includes multiple optical path adjustment units, and the graph data includes adjusting with each optical path
The corresponding graphic element of unit.
In an optional embodiment, the graph data includes white light graph data and monochromatic light graph data.
Specifically, the optical signalling of the graphic element is output to corresponding optical path tune by the optical signalling output device
On whole unit.
Specifically, the optical path adjustment device includes a bracket, and the multiple optical path adjustment unit is set to the bracket
On, and the optical signalling of corresponding graphic element can be reflected into measurand respectively.
Specifically, the bracket is substantially in a ring.
Specifically, the multiple optical path adjustment unit is distributed generally uniformly on the bracket.
It will be appreciated by those skilled in the art that although the bracket in the present embodiment is substantially in a ring, and the multiple more
A optical path adjustment unit is distributed generally uniformly on the bracket, however the present invention is not limited thereto.Branch in the present invention
Frame can also use any applicable form, regular polygon or ellipse etc..Optical path adjustment unit in the present invention can be with
It is adjusted according to the posture of optical signalling output device, such as less close to the setting of the direction of optical signalling output device
Optical path adjustment unit, and more optical path adjustment units are set in the direction far from optical signalling output device.
Specifically, the optical path adjustment unit includes plane mirror.
In a preferred embodiment, each plane mirror in optical path adjustment device is all disposed in approximately the same plane,
Optical path is adjusted in the same way.
In another optional embodiment, the mirror surface direction of each plane mirror in optical path adjustment device can be according to need
Be adjusted so that the reflection mode of the plane mirror of different location is arranged according to position, with realize adjustment light diverging or
Converge characteristic.
In another optional embodiment, optical path adjustment unit can also include convex mirror and/or concave mirror, with into one
Step is adjusted optical path.
In an optional embodiment, the graph data includes a figure that can cover whole optical path adjustment units
Unit.This embodiment is larger for size, the position precision tolerance of optical path adjustment unit and graphic element, reduces processing
And assembly cost.
In an optional embodiment, the graph data includes multiple graphic elements, and each graphic element is extremely
Correspond to an optical path adjustment unit less.This embodiment can be irradiated to the position except optical path adjustment unit to avoid light
It sets, reduces the influence of veiling glare, improve illuminating effect.
Embodiment 2
As shown in Fig. 2, a kind of tongue is present embodiments provided as diagnostic device, including control device, image acquiring device, and with
Lighting system described in any one of upper embodiment.
Specifically, the optical signalling of the lighting system output is white light.
Before carrying out the diagnosis of tongue picture, generally tongue is calibrated as the lighting system in diagnostic device, the side of calibration
Method includes the following steps.
The step of each optical path adjustment unit is aligned with corresponding graphic element.
Brightness calibration step.
Colour temperature calibration steps.
It specifically, further include to the optical signalling output device before the brightness calibration step, colour temperature calibration steps
The step of preheating.
Specifically, described the step of being directed at each optical path adjustment unit with corresponding graphic element, includes:
The imaging plane of the optical signalling output device is focused on to the working face of the optical path adjustment unit；
The output scaling of the graphic element is adjusted to minimum；
Increase the output scaling of the graphic element step by step and records reality output graphic element size and corresponding optical path
Adjustment unit scale error, until scaling is maximum；
Set the optical signalling output device to the scaling when error minimum.
Specifically, the brightness calibration step includes:
A corresponding graphic element output optical signalling in the optical path adjustment unit is chosen, other graphic elements are closed
Optical signalling；
The brightness value for the optical signalling that the graphic element of selection exports is adjusted to minimum；
Increase the brightness of the optical signalling of the graphic element output step by step and deposits the illumination zone of object being observed and brightness
The graph data generating means are stored up, until the brightness of output optical signalling reaches maximum；
The optical path adjustment unit chosen is replaced, is repeated the above steps.
Specifically, the colour temperature calibration steps colour temperature calibration steps includes:
Standard color comparison card is placed at object being observed；
A corresponding graphic element output optical signalling in the optical path adjustment unit is chosen, other graphic elements are closed
Optical signalling；
The color temperature value for the optical signalling that the graphic element of selection exports is adjusted to minimum；
Increase the color temperature value of the optical signalling of the graphic element output and the illumination zone and color of record standard colorimetric card step by step
Temperature, until the color temperature value of output optical signalling reaches maximum；
The optical path adjustment unit chosen is replaced, is repeated the above steps.
Specifically, the colour temperature calibration steps further comprises:
Calculate the corresponding illumination zone of each optical path adjustment unit and color temperature distribution data；
The illumination zone and color temperature distribution data are stored to the graph data generating means.
Using the present embodiment tongue as the key step of the process of diagnostic device it is as follows.
The tongue for being the patient diagnosed will be needed to be located on diagnostic device, so that tongue is in the illumination model of lighting system
Within enclosing, while being also within the field range of image acquiring device.
According to the form of the tongue of patient and position, the characteristic parameter of graph data is set.
The graph data that illumination required for machine vision is generated using graph data generating means, is output to optical signalling
Output device.
The optics of illumination required for exporting machine vision according to the graph data using optical signalling output device is believed
Number.
It is adjusted using optical path of the optical path adjustment device to the optical signalling, so that the optical signalling is with required
Mode for be tested patient tongue illumination is provided.
The image of tested patient is obtained using image acquiring device.
As shown in figure 3, the image of the tested patient of image acquiring device shooting includes the face of patient.The tongue picture diagnosis
Device further comprises image processing apparatus, and the image of the tongue of patient can be extracted from image, further to execute
Analysis and diagnosis.
The present invention is described in detail above, specific case used herein is to the principle of the present invention and embodiment party
Formula is expounded, and the above description of the embodiment is only used to help understand the method for the present invention and its core ideas.For this
The those skilled in the art in field, according to the thought of the present invention, there will be changes in the specific implementation manner and application range,
In conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of lighting system for machine vision, comprising:
Graph data generating means can generate the graph data illuminated required for machine vision；
Optical signalling output device, the optics letter of illumination required for machine vision capable of being exported according to the graph data
Number；
Optical path adjustment device can be adjusted the optical path of the optical signalling, so that the optical signalling is with required
Mode provide illumination for measurand；
It is characterized in that, the optical path adjustment device includes multiple optical path adjustment units, the graph data includes and each light
The corresponding graphic element of road adjustment unit.
2. lighting system according to claim 1, which is characterized in that the optical signalling output device is by the figure list
The optical signalling of member is output on corresponding optical path adjustment unit.
3. lighting system according to claim 2, which is characterized in that the optical path adjustment device includes a bracket, described
Multiple optical path adjustment units are arranged on the bracket, and can be anti-by the optical signalling of corresponding graphic element respectively
It is mapped to measurand.
4. lighting system according to claim 3, which is characterized in that the bracket is substantially in a ring.
5. lighting system according to claim 4, which is characterized in that the multiple optical path adjustment unit substantially homogeneously divides
Cloth is on the bracket.
6. lighting system according to claim 5, which is characterized in that the optical path adjustment unit includes plane mirror.
7. lighting system according to claim 1 to 6, which is characterized in that the graph data can including one
Cover the graphic element of whole optical path adjustment units.
8. lighting system according to claim 1 to 6, which is characterized in that the graph data includes multiple figures
Shape unit, and each graphic element at least corresponds to an optical path adjustment unit.
9. a kind of tongue is as diagnostic device, including control device, image acquiring device, and according to claim 1 any one of -8
The lighting system.
10. tongue according to claim 9 is as diagnostic device, which is characterized in that the optical signalling of the lighting system output
For white light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810356289.9A CN109044269A (en) | 2018-04-19 | 2018-04-19 | A kind of reflective lighting system for machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810356289.9A CN109044269A (en) | 2018-04-19 | 2018-04-19 | A kind of reflective lighting system for machine vision |
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| CN109044269A true CN109044269A (en) | 2018-12-21 |
Family
ID=64820029
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| CN201810356289.9A Pending CN109044269A (en) | 2018-04-19 | 2018-04-19 | A kind of reflective lighting system for machine vision |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664581A (en) * | 2008-09-05 | 2010-03-10 | 深圳普门科技有限公司 | Method and device for implementing intelligent photonic scanning treatment by using light path regulator |
| CN101999880A (en) * | 2009-09-01 | 2011-04-06 | 上海道生医疗科技有限公司 | Traditional Chinese medicine complexion and tongue manifestation detection device |
| CN105030200A (en) * | 2015-07-24 | 2015-11-11 | 天津大学 | Traditional Chinese medicine tongue body and tongue coating separation method based on green monochromatic source |
-
2018
- 2018-04-19 CN CN201810356289.9A patent/CN109044269A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664581A (en) * | 2008-09-05 | 2010-03-10 | 深圳普门科技有限公司 | Method and device for implementing intelligent photonic scanning treatment by using light path regulator |
| CN101999880A (en) * | 2009-09-01 | 2011-04-06 | 上海道生医疗科技有限公司 | Traditional Chinese medicine complexion and tongue manifestation detection device |
| CN105030200A (en) * | 2015-07-24 | 2015-11-11 | 天津大学 | Traditional Chinese medicine tongue body and tongue coating separation method based on green monochromatic source |
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Application publication date: 20181221 |
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