CN204903413U - Detection device based on polarized light imaging technique - Google Patents
Detection device based on polarized light imaging technique Download PDFInfo
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- CN204903413U CN204903413U CN201520439023.2U CN201520439023U CN204903413U CN 204903413 U CN204903413 U CN 204903413U CN 201520439023 U CN201520439023 U CN 201520439023U CN 204903413 U CN204903413 U CN 204903413U
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Abstract
The utility model relates to an image processing techniques field especially relates to a detection device based on polarized light imaging technique. Including objective table, light source, luminous intensity image device, polarized light imaging Unit, calculating unit, detecting element, foretell detection device based on polarized light imaging technique, wherein, the three predetermined angle of a plurality of predetermined angles, wherein three predetermined angle measure wait to detect the thing surface. Polarized light formation of image and intensity image -forming principle combine together, fuse the multisource image, utilize among polarization image information and the intensity image information complementary information to generate the integration image of a reinforcing, the details that fuses the image than in polarization image and the intensity image any one all stick out, form the new image that has drawn the multisource image of a reinforcing, thereby obtain the description of the relevant scene that single image can't acquire, overcome the limitation that single image exists, the efficiency of wait to detect the detection of thing is improved, detection efficiency's accuracy has been strengthened.
Description
Technical field
The utility model relates to a kind of technical field of image processing, particularly relates to a kind of pick-up unit based on polarized light imaging technique.
Background technology
Dynamic Non-Destruction Measurement and non-damaged data, utilize the characteristics such as the sound of thing to be detected, light, magnetic and electricity, do not destroying under the prerequisites such as the original state of thing to be detected, chemical property, for obtaining the inspection method that physics, the chemical corps intelligences such as content, character or the composition relevant with article matter to be detected adopt, the existing lossless detection method being applied to industrial detection mainly contains mechanical type contact detection method and photo-electric non-contact detection method.Wherein mechanical type contact detection method is measured in the slippage of measured surface by the contact pilotage of instrument, this kind of method needs contact pilotage to carry out comprehensive engagement on the surface of thing to be detected, thus detection speed is slow, and easily scratch thing to be detected surface, cause secondary cut, photo-electric non-contact detection method is now widely used method, by analyzing the two dimensional image feature of testee, can realize quick, non-contact detecting.Existing non-contact detection method mainly adopts light intensity image checking and polarized light image checking, light intensity image checking is by light source irradiation thing to be detected, obtain the radiation intensity information on thing surface to be detected, and according to the flaw of thing to be detected in this radiation intensity information combining image Processing Algorithm detected image.Because thing surface blemish feature to be detected (as cut, surface is uneven, and smoothness is low) is usually more hidden, not easily present in intensity imaging system, this just for later image process brings larger pressure, not only can increase algorithm complexity, can reduce the detection efficiency of system equally.Polarized light image checking is that the target reflecting light by obtaining different polarization direction obtains target polarization information, target polarization parameter information is obtained by carrying out parsing to target polarization information, as degree of polarization, polarization angle etc., carry out Inversion Calculation according to target polarization parameter information and obtain object reconstruction figure, object reconstruction image comprises geometric configuration, surfaceness, texture, the polarization information of the physicochemical properties such as conductance, but there is certain difference in the surface of object reconstruction image and background on some polarization parameter and original image, compare intensity image, polarization parameter image readability is not good, need later stage decipher.
Utility model content
Thing surface blemish to be detected is detected in order to better utilize polarization characteristic, improve detection efficiency, the utility model provides a kind of based on polarized light imaging technique pick-up unit, by intensity imaging combine with technique polarized light imaging technique, intensity image basis utilizes carry out of polarization characteristic to thing surface blemish to be detected strengthen, improve detection efficiency and detection accuracy.
Based on a pick-up unit for polarized light imaging technique, wherein, comprise objective table, in order to place thing to be detected;
Light source, for sending visible light spot with a plurality of predetermined angular, described visible light spot exposes to described thing surface to be detected;
Light intensity imaging device, obtains the intensity information on described thing surface to be detected;
Polarized light image-generating unit, for receiving described visible light spot in the reflection ray on described thing surface to be detected, obtains the original polarization information of described reflection ray;
Computing unit, in order to carry out image co-registration according to described original polarization information, obtains the view data after merging;
Detecting unit, in order to the flaw of thing to be detected according to described view data identification.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described a plurality of predetermined angular is three predetermined angulars, and wherein three predetermined angulars detect described thing surface to be detected.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described computing unit adopts Mallat Wavelet Transformation Algorithm to obtain the view data after merging.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described three predetermined angulars are defined as 0 °, 60 °, 120 ° respectively.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described light source and described polarized light image-generating unit are arranged at described objective table both sides respectively.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, also comprises the first stationary installation, in order to fixing described polarized light image-generating unit.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, also comprises the second stationary installation, in order to fixing described light source.
Compared with prior art, the utility model has the advantages that:
Polarized light imaging and intensity imaging principle combine by the utility model, multi-source image (image that polarized light imaging obtains and the image that intensity imaging obtains) is merged, complementary information in polarization image information and intensity image information is utilized to generate the fused images of a width enhancing, the details of fused images is all more outstanding than a width any in polarization image and intensity image, what form a width enhancing has drawn the new images of multi-source image, in fused images, the contrast of target distinguishing characteristics is far above the contrast of target distinguishing characteristics in intensity image, thus obtain the description of the associated scenario that single image cannot obtain, overcome the limitation existing for single image, improve the detection efficiency of thing to be detected, enhance the accuracy of detection efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the pick-up unit based on polarized light imaging technique.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.
As shown in Figure 1, a kind of pick-up unit based on polarized light imaging technique, wherein, comprises objective table 3, in order to place thing to be detected;
Light source 2, for sending visible light spot to described thing surface to be detected with a plurality of predetermined angular; Further, a plurality of predetermined angular is three predetermined angulars.
Light intensity imaging device, obtains the intensity information on described thing surface to be detected.
Polarized light image-generating unit 1, for receiving described visible light spot in the reflection ray on described thing surface to be detected, obtains the original polarization information of described reflection ray.
Computing unit, in order to carry out image co-registration according to described original polarization information, obtains the view data after merging.
Detecting unit, in order to the flaw of thing to be detected according to described view data identification.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described a plurality of predetermined angular three predetermined angulars, wherein three predetermined angulars detect described thing surface to be detected.
Principle of work of the present utility model is:
Obtain the light intensity parameter on thing surface to be detected in three predetermined angulars by a light intensity imaging device, predetermined angular is defined as α 1, α 2, α 3 respectively; Light intensity parameter comprises I
0(α 1), I
0(α 2), I
0(α 3), wherein, I
0the light intensity parameter on the thing surface to be detected that (α 1) obtains for α 1 polarization direction, I
0the light intensity parameter on the thing surface to be detected that (α 2) obtains for α 2 polarization direction, I
0the light intensity parameter on the thing surface to be detected that (α 3) obtains for α 3 polarization direction; Obtain thing surface image to be detected in three predetermined angulars by a polarized light image-forming detecting system, form the surface image output that three light intensities are different; Computing unit according to the different surface image of three light intensities in conjunction with described light intensity parameter and original polarization acquisition of information fused images; Detecting unit carries out Defect Detection to fused images.
Polarized light imaging and intensity imaging principle combine by the utility model, multi-source image (image that polarized light imaging obtains and the image that intensity imaging obtains) is merged, complementary information in polarization image information and intensity image information is utilized to generate the fused images of a width enhancing, the details of fused images is all more outstanding than a width any in polarization image and intensity image, what form a width enhancing has drawn the new images of multi-source image, in fused images, the contrast of target distinguishing characteristics is far above the contrast of target distinguishing characteristics in intensity image, thus obtain the description of the associated scenario that single image cannot obtain, overcome the limitation existing for single image, improve the detection efficiency of thing to be detected, enhance the accuracy of detection efficiency.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described computing unit adopts Mallat Wavelet Transformation Algorithm to obtain the view data after merging.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described three predetermined angulars are defined as 0 °, 60 °, 120 ° respectively.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, described light source 2 is arranged at described objective table 3 both sides respectively with described polarized light image-generating unit 1.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, also comprises the first stationary installation 11, in order to fixing described polarized light image-generating unit 1.
The above-mentioned pick-up unit based on polarized light imaging technique, wherein, also comprises the second stationary installation 21, in order to fixing described light source 2.
These are only the utility model preferred embodiment; not thereby embodiment of the present utility model and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilization the utility model instructionss and diagramatic content and apparent change obtain in protection domain of the present utility model.
Claims (7)
1. based on a pick-up unit for polarized light imaging technique, it is characterized in that, comprise
Objective table, in order to place thing to be detected;
Light source, for sending visible light spot with a plurality of predetermined angular, described visible light spot exposes to described thing surface to be detected;
Light intensity imaging device, obtains the intensity information on described thing surface to be detected;
Polarized light image-generating unit, for receiving described visible light spot in the reflection ray on described thing surface to be detected, obtains the original polarization information of described reflection ray;
Computing unit, in order to carry out image co-registration according to described original polarization information, obtains the view data after merging;
Detecting unit, in order to the flaw of thing to be detected according to described view data identification.
2. the pick-up unit based on polarized light imaging technique according to claim 1, is characterized in that, described a plurality of predetermined angular is three predetermined angulars, and wherein three predetermined angulars detect described thing surface to be detected.
3. the pick-up unit based on polarized light imaging technique according to claim 1, is characterized in that, described computing unit adopts Mallat Wavelet Transformation Algorithm to obtain the view data after merging.
4. the pick-up unit based on polarized light imaging technique according to claim 2, is characterized in that, described three predetermined angulars are defined as 0 °, 60 °, 120 ° respectively.
5. the pick-up unit based on polarized light imaging technique according to claim 1, is characterized in that, described light source and described polarized light image-generating unit are arranged at described objective table both sides respectively.
6. the pick-up unit based on polarized light imaging technique according to claim 1, is characterized in that, also comprises the first stationary installation, in order to fixing described polarized light image-generating unit.
7. the pick-up unit based on polarized light imaging technique according to claim 1, is characterized in that, also comprises the second stationary installation, in order to fixing described light source.
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| CN201520439023.2U CN204903413U (en) | 2015-06-23 | 2015-06-23 | Detection device based on polarized light imaging technique |
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| CN201520439023.2U CN204903413U (en) | 2015-06-23 | 2015-06-23 | Detection device based on polarized light imaging technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489998A (en) * | 2018-03-22 | 2018-09-04 | 深圳市永光神目科技有限公司 | A kind of scolding tin defect inspection method and device |
| CN110412035A (en) * | 2019-06-13 | 2019-11-05 | 合刃科技（武汉）有限公司 | A kind of high reflecting material surface inspecting method and system |
| CN111328370A (en) * | 2019-04-23 | 2020-06-23 | 合刃科技（深圳）有限公司 | Surface defect detection system and method |
| WO2020132961A1 (en) * | 2018-12-26 | 2020-07-02 | 合刃科技（深圳）有限公司 | Appearance defect inspection method and device |
| CN112666166A (en) * | 2020-12-18 | 2021-04-16 | 宁波谦视智能科技有限公司 | Silicon carbide micro-tube detection device and method |
-
2015
- 2015-06-23 CN CN201520439023.2U patent/CN204903413U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489998A (en) * | 2018-03-22 | 2018-09-04 | 深圳市永光神目科技有限公司 | A kind of scolding tin defect inspection method and device |
| WO2020132961A1 (en) * | 2018-12-26 | 2020-07-02 | 合刃科技（深圳）有限公司 | Appearance defect inspection method and device |
| CN111328370A (en) * | 2019-04-23 | 2020-06-23 | 合刃科技（深圳）有限公司 | Surface defect detection system and method |
| CN111328370B (en) * | 2019-04-23 | 2023-05-02 | 合刃科技（深圳）有限公司 | Surface defect detection system and method |
| CN110412035A (en) * | 2019-06-13 | 2019-11-05 | 合刃科技（武汉）有限公司 | A kind of high reflecting material surface inspecting method and system |
| CN112666166A (en) * | 2020-12-18 | 2021-04-16 | 宁波谦视智能科技有限公司 | Silicon carbide micro-tube detection device and method |
| CN112666166B (en) * | 2020-12-18 | 2024-04-12 | 上海谦视智能科技有限公司 | Silicon carbide microtube detection device and method |
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