CN205317657U - Icteric sclera detector based on colorimetric analysis - Google Patents
Icteric sclera detector based on colorimetric analysis Download PDFInfo
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- CN205317657U CN205317657U CN201521127134.6U CN201521127134U CN205317657U CN 205317657 U CN205317657 U CN 205317657U CN 201521127134 U CN201521127134 U CN 201521127134U CN 205317657 U CN205317657 U CN 205317657U
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Abstract
The utility model relates to an icteric sclera detector based on colorimetric analysis includes: the camera, central processing unit, its and camera connection, lighting system, it includes light and controller, and the light links to each other with the controller, and the controller links to each other with central processing unit, wherein, lighting system's illumination is regional at least and the collection region overlapping of camera, memory hard disk, its and central processing unit data connection, the human -computer interaction system, it includes display screen and physical key, display screen and physical key are connected with central processing unit respectively, the power, it links to each other with central processing unit, wherein, the angle of vision of camera >= 90. The present case has realized the non -contact quantitative measurement to the icteric sclera, helps the doctor to carry out quick examination to having icteric sclera symptom patient, also can provide important reference with the treatment for the doctor carries out further diagnosis simultaneously.
Description
Technical field
This utility model relates to a kind of yellow sclera detecting device, particularly to a kind of yellow sclera detector based on colorimetric analysis.
Background technology
Jaundice is a kind of common symptoms and sign, and it is to cause in serum caused by bilirubin concentration rising due to human body bilirubin metabolism obstacle. Clinical signs is that sclera, mucosa, skin and hetero-organization thereof are dyed to yellow. Because sclera contains more elasticin, there is stronger affinity with bilirubin, therefore first Patients with Jaundice yellow sclera is often noticeable prior to mucosa, skin. When serum total bilirubin concentration is at 17.1-34.2 μm of ol/L, and when naked eyes do not see jaundice, claim latent jaundice or subclinical jaundice; When serum total bilirubin concentration is more than 34.2 μm of ol/L, jaundice can be found by naked eyes clinically, also referred to as clinical jaundice. Common icteric disease has biliary obstruction, hepatitis and some hematopathys. The different changes such as along with the difference of severity extent, jaundice also has lemon yellow, crocus, yellow green, dark yellow.
Jaundice occasioner's feature: 1) first jaundice come across sclera, on hard palate rear portion and soft palate, along with blood mesobilirubin concentration continue increase, just there will be xanthochromia when mucosa xanthochromia becomes apparent from; 2) yellow sclera is continuous print, and nearly corneoscleral junction place xanthochromia is light, and yellow is light, and remote corneoscleral junction place xanthochromia weight, yellow is deep. The accurately detection of yellow sclera can be found the jaundice symptom of patient in time, be conducive to the early screening of icteric disease, diagnosis and treatment.
The at present both at home and abroad clinical inspection to yellow sclera carries out bilirubin detection mainly through biochemical detection methods such as heavy nitrogen, and the method needs blood sampling, has invasive, the shortcoming such as longer relatively costly, consuming time. The bilirubin detection equipment adopting non-invasive optical method is mainly percutaneous bilirubin detector, but can be only applied to the first examination of neonatal jaundice disease. Along with the development of sensing detection Yu photoelectric technology, research and development are widely used in having the contactless yellow sclera detector of jaundice symptom patient and are possibly realized.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is in that, by the improvement to existing yellow sclera detector structure, to obtain the yellow sclera detector based on colorimetric analysis of a kind of contactless high measurement accuracy.
For achieving the above object, this utility model is achieved through the following technical solutions:
A kind of yellow sclera detector based on colorimetric analysis, including:
Photographic head, it is used for gathering eye image;
Central processing unit, it is with described photographic head data cube computation;
Illuminator, it includes illuminating lamp and controller, and described illuminating lamp is connected with described controller, and described controller is connected with described central processing unit; Wherein, the illumination region of described illuminator is at least overlapping with the pickup area of described photographic head;
Storage hard disk, it is with described central processing unit data cube computation;
Man-machine interactive system, it includes display screen and physical button, and described display screen and physical button are connected with described central processing unit respectively;
Power supply, it is connected with described central processing unit;
Wherein, the angle of visual field >=90 ° of described photographic head.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, at least contains a LVDS interface in described central processing unit.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, the color rendering index of described illuminating lamp is more than 90.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, described photographic head includes the camera lens, prism, optical filter, ccd sensor and the circuit board that are sequentially arranged.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, described circuit board at least contains a LVDS interface, described photographic head realizes data cube computation by this LVDS interface and described central processing unit.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, described power supply is rechargeable battery.
Preferably, the described yellow sclera detector based on colorimetric analysis, wherein, described central processing unit is ARM development board or DSP development board.
The beneficial effects of the utility model are: this case achieves the contactless quantitative measurement to yellow sclera, contribute to doctor to having yellow sclera patient with sympotoms and carry out rapid screening, are alternatively doctor simultaneously and further diagnose and treat offer important references.
Accompanying drawing explanation
Fig. 1 is the structural representation of the yellow sclera detector based on colorimetric analysis.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As it is shown in figure 1, the yellow sclera detector based on colorimetric analysis of an embodiment is listed in this case, comprising:
Photographic head, it is used for gathering eye image; This collection is contactless.
Central processing unit, it is with photographic head data cube computation;
Illuminator, it includes illuminating lamp and controller, and illuminating lamp is connected with controller, and controller is connected with central processing unit; Wherein, the illumination region of illuminator is at least overlapping with the pickup area of photographic head, but can cover and more than the pickup area of photographic head;
Storage hard disk, it is with central processing unit data cube computation; The storage hard disk information for being cleared after preserving device powers down. The information preserved includes: the eye image of shooting, the chrominance information etc. in the yellow sclera region that detection obtains.
Man-machine interactive system, it includes display screen and physical button, display screen and physical button and is connected with central processing unit respectively; The display content of display screen includes measuring parameter, detection image, testing result etc.The function of physical button includes starting shooting, shuts down, takes pictures, testing result preservation etc.;
Power supply, it is connected with central processing unit, for powering for whole equipment;
Wherein, the angle of visual field >=90 ° of photographic head, such that it is able to improve the accuracy of detection of yellow sclera.
In the above-described embodiments, at least containing a LVDS interface in central processing unit, LVDS interface is used for transmitting digital signal, to meet the requirement of low-power consumption, low error rate, low crosstalk and Low emissivity.
In the above-described embodiments, the color rendering index of illuminating lamp is more than 90. Illuminator is controlled by central processing unit, for providing illumination when camera collection eyes image. Illuminator requires that the color rendering index of light source is higher than 90, makes camera collection arrive the eye image close to true colors, to ensure the accuracy that sclera colourity is extracted.
In the above-described embodiments, photographic head comprises preferably the camera lens, prism, optical filter, ccd sensor and the circuit board that are sequentially arranged. Circuit board can direct output digit signals.
In the above-described embodiments, circuit board at least containing a LVDS interface, photographic head realizes data cube computation by this LVDS interface and central processing unit.
In the above-described embodiments, power supply is preferably rechargeable battery.
In the above-described embodiments, central processing unit is preferably ARM development board or DSP development board. Central processing unit adopts LVDS interface to receive the digitized eye image of photographic head output, through image processing software analysis, obtains the chrominance information in yellow sclera region, carries out preserving and showing.
The detection method of yellow sclera detector is:
1, patient's binocular images of camera collection is received;
2, eyes inner-con-tour extraction;
3, the detection of eyes central area, detects pupil hot spot point and fills;
4, pupil of both eyes coarse positioning, respectively obtains the coarse position information in pupil of both eyes region;
5, pupil of both eyes region is carried out central point interpretation, respectively obtain pupil of both eyes center position;
6, extracting iris edge with pupil of both eyes central point for the center of circle, beyond iris edge, the region of the pure man ophthalmic profile is eyes sclera region;
7, sclera region is carried out blood vessel noise cutting, respectively obtain eyes yellow sclera region.
8, extract the chrominance information in eyes yellow sclera region respectively, shown by display screen.
Although embodiment of the present utility model is disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (7)
1. the yellow sclera detector based on colorimetric analysis, it is characterised in that including:
Photographic head, it is used for gathering eye image;
Central processing unit, it is with described photographic head data cube computation;
Illuminator, it includes illuminating lamp and controller, and described illuminating lamp is connected with described controller, and described controller is connected with described central processing unit; Wherein, the illumination region of described illuminator is at least overlapping with the pickup area of described photographic head;
Storage hard disk, it is with described central processing unit data cube computation;
Man-machine interactive system, it includes display screen and physical button, and described display screen and physical button are connected with described central processing unit respectively;
Power supply, it is connected with described central processing unit;
Wherein, the angle of visual field >=90 ° of described photographic head.
2. the yellow sclera detector based on colorimetric analysis as claimed in claim 1, it is characterised in that at least contain a LVDS interface in described central processing unit.
3. the yellow sclera detector based on colorimetric analysis as claimed in claim 1, it is characterised in that the color rendering index of described illuminating lamp is more than 90.
4. the yellow sclera detector based on colorimetric analysis as claimed in claim 2, it is characterised in that described photographic head includes the camera lens, prism, optical filter, ccd sensor and the circuit board that are sequentially arranged.
5. the yellow sclera detector based on colorimetric analysis as claimed in claim 4, it is characterised in that at least containing a LVDS interface on described circuit board, described photographic head realizes data cube computation by this LVDS interface and described central processing unit.
6. the yellow sclera detector based on colorimetric analysis as claimed in claim 1, it is characterised in that described power supply is rechargeable battery.
7. the yellow sclera detector based on colorimetric analysis as claimed in claim 1, it is characterised in that described central processing unit is ARM development board or DSP development board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521127134.6U CN205317657U (en) | 2015-12-30 | 2015-12-30 | Icteric sclera detector based on colorimetric analysis |
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| CN201521127134.6U CN205317657U (en) | 2015-12-30 | 2015-12-30 | Icteric sclera detector based on colorimetric analysis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466864A (en) * | 2015-12-30 | 2016-04-06 | 中国科学院苏州生物医学工程技术研究所 | Icteric sclera detector based on colorimetric analysis |
| CN109620149A (en) * | 2018-12-06 | 2019-04-16 | 中国科学院长春光学精密机械与物理研究所 | A kind of portable icteric sclera quantitative detection system |
-
2015
- 2015-12-30 CN CN201521127134.6U patent/CN205317657U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466864A (en) * | 2015-12-30 | 2016-04-06 | 中国科学院苏州生物医学工程技术研究所 | Icteric sclera detector based on colorimetric analysis |
| CN109620149A (en) * | 2018-12-06 | 2019-04-16 | 中国科学院长春光学精密机械与物理研究所 | A kind of portable icteric sclera quantitative detection system |
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