CN103654710A - Image detection device and image detection method - Google Patents
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- CN103654710A CN103654710A CN201210321386.7A CN201210321386A CN103654710A CN 103654710 A CN103654710 A CN 103654710A CN 201210321386 A CN201210321386 A CN 201210321386A CN 103654710 A CN103654710 A CN 103654710A
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Abstract
The invention provides an image detection device and an image detection method which are used for detecting an object to be detected. The image detection device comprises a light source, a light shading cover, a lens module, an image detection unit and a control unit. The light source provides an illumination light beam. The light shading cover is arranged on a transmission path of the illumination light beam and is provided with a transmitting open hole. The illumination light beam passes through the light shading cover through the transmitting open hole. The lens module is arranged on the transmission path of the illumination light beam from the transmitting open hole. The illumination light beam is reflected to be an image light beam by the object to be detected. The lens module is arranged on a transmission path of the image light beam. The image detection unit is arranged on the transmission path of the image light beam from the lens module. The control unit enables the image detection unit and the light shading cover to move according to the detected image skewing state of the image detection unit. The image detection device and the image detection method can be adapted to moving of the objected to be detected, so that the good image capture range and image quality are obtained.
Description
Technical field
The present invention relates to a kind of checkout gear and detection method, relate in particular to a kind of image detection device and image detecting method.
Background technology
In recent years, under the progress that quasiconductor is scientific and technological and processing procedure is with rapid changepl. never-ending changes and improvements, CMOS semiconductor sensor (complementary metal-oxide-semiconductor sensor, CMOS sensor) with charge coupled cell (charge coupled device, CCD) etc. the volume of image sensering device, cost and power consumption reduce, thereby are widely used in such as on hand-held digital camera or the portable products such as camera of smart mobile phone.Yet, because the image sensering device on portable apparatus is often due to slightly the rocking or mobile make image blurringly of user, and then increase the degree of difficulty of user.
And in the application of Medical Instruments, such as in the physiology image capture devices such as retina or optical fundus camera, because the pupil by narrow and small is to aim at retina, even therefore small vibration also can significantly affect the capture scope of optical system, and can cause image blurringly, and then reduce image quality.Thus, often make doctor be difficult to according to wrong capture scope and the fuzzy image judgement state of an illness.In order to obtain image clearly, for doctor, differentiate physiological situation, conventionally image sensering device is arranged on fixedly to tables upper, by medical personnel, with manual type, adjusts after the pupil position that image sensering device aligns sufferer and focus again and take the photograph phase at its retina.Thus, take the amphiblestroid photo in the end of opening one's eyes and can spend the plenty of time, also easily cause the eyes of sufferer more tired simultaneously.Even for the patient who suffers from such as special diseases such as eyeball vibrations, its uncontrollable eyeball or health vibration, thereby make manually to take amphiblestroid difficulty and spended time raising is many, also increase the burden of medical personnel and sufferer.
Summary of the invention
The invention provides a kind of image detection device and image detecting method.
The invention provides a kind of image detection device, its can self-adaptation in the movement of determinand, and reach good capture scope and catch good determinand image.
The invention provides a kind of image detecting method, it can be adapted to the movement of determinand, and reaches good capture scope and catch good determinand image.
One embodiment of the invention provide a kind of image detection device, and in order to detect determinand, image detection device comprises light source, light shade, camera lens module, image detecting element and control unit.Light source provides illuminating bundle.Light shade is configured on the bang path of illuminating bundle, and light shade has printing opacity perforate, and illuminating bundle passes through light shade through printing opacity perforate.Camera lens module is configured on the bang path from the illuminating bundle of printing opacity perforate, and so that illuminating bundle is projected to determinand, determinand is reflected into image beam by illuminating bundle.Camera lens module is configured on the bang path of image beam.Image detecting element is configured on the bang path from the image beam of camera lens module, camera lens module by the image imaging of determinand on image detecting element.Control unit is electrically connected to image detecting element, and according to the shift state of the detected image of image detecting element, image detecting element and light shade is moved.
In one embodiment of this invention, above-mentioned determinand is eyeball, and control unit picks out the pupil image of the eyeball in the detected image of image detecting element, and judge the position of pupil image on image detecting element, and calculate the side-play amount of the position of pupil image, and control unit moves image detecting element and light shade according to the side-play amount of pupil image.
In one embodiment of this invention, above-mentioned control unit first confirms that the position of pupil image, whether at the middle section of image detecting element, if NO, calculates the side-play amount of the position of pupil image.
In one embodiment of this invention, above-mentioned control unit calculates the first corresponding amount of movement of bright dipping shade and the second corresponding amount of movement of image detecting element according to the side-play amount of pupil image, control unit makes light shade move with the first corresponding amount of movement, and after image detecting element is moved with the second corresponding amount of movement, the pupil of illuminating bundle incident eyeball, and the optical fundus of eyeball is at the formed image alignment image detecting element of image detecting element.
In one embodiment of this invention, above-mentioned image detection device also comprises the first actuator and the second actuator.The first actuator is electrically connected to control unit, and control unit orders about light shade by the first actuator and moves.The second actuator is electrically connected to control unit, and control unit orders about image detecting element by the second actuator and moves.
In one embodiment of this invention, above-mentioned camera lens module comprises frontal lens group and spectrophotometric unit.Frontal lens group configuration, on the bang path of the illuminating bundle from printing opacity perforate, and is configured on the bang path from the image beam of determinand.Spectrophotometric unit is configured on the bang path of illuminating bundle and image beam, and spectrophotometric unit makes to be passed to frontal lens group from the illuminating bundle of printing opacity perforate, and makes to be passed to image detecting element from the image beam of determinand.
In one embodiment of this invention, the movement of the movement of above-mentioned image detecting element and light shade is all relatively moving with respect to light source and camera lens module.
The invention provides a kind of image detecting method, in order to detect determinand, this image detecting method comprises the following steps: to provide illuminating bundle.Make illumination light be passed to determinand by the printing opacity perforate of light shade.By the image imaging of determinand on image detecting element.According to the shift state of the image of the determinand on image detecting element, come mobile light shade and image detecting element.
In one embodiment of this invention, above-mentioned determinand is eyeball, and according to the shift state of the image of the eyeball on image detecting element come the step of mobile light shade and image detecting element comprise position on image detecting element of pupil image in the detected image of recognisable image detecting unit, judgement pupil image, calculate pupil image position side-play amount and according to the side-play amount of pupil image, image detecting element and light shade are moved.
In one embodiment of this invention, before the above-mentioned shift state according to the image of the determinand on image detecting element carrys out the step of mobile light shade and image detecting element to be also included in to calculate the side-play amount of position of pupil image, whether the position of first confirming pupil image is at the middle section of image detecting element, if NO, calculate the side-play amount of the position of pupil image.
In one embodiment of this invention, the step that the above-mentioned side-play amount according to pupil image makes image detecting element move with light shade comprises according to the side-play amount of pupil image and calculates the first corresponding amount of movement of image detecting element and the second corresponding amount of movement of light shade and with the first corresponding amount of movement and the second corresponding amount of movement mobile light shade and image detecting element respectively, so that the pupil of illuminating bundle incident eyeball, and make the optical fundus of eyeball at the formed image alignment image detecting element of image detecting element.
In one embodiment of this invention, above-mentioned by the image imaging of determinand the method on image detecting element comprise utilize camera lens module by the image imaging of determinand on image detecting element.And, according to the shift state of the image of the eyeball on image detecting element, come the method for mobile light shade and image detecting element to comprise and make light shade move and image detecting element is moved relative to camera lens module relative to camera lens module.
Based on above-mentioned, in the image detection device and image detecting method of embodiments of the invention, owing to according to the state of the image shift of the detected determinand in image sensing unit, image detecting element and light shade being moved, so image detection device and image detecting method can be adapted to the movement of determinand and obtain good capture scope and image quality.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and shown in coordinating, accompanying drawing is described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the image detection device of one embodiment of the invention;
Fig. 2 is the detailed maps according to light shade in the embodiment of Fig. 1;
Fig. 3 is the flow chart of the image detecting method in one embodiment of the invention;
Fig. 4 is according to carry out the flow chart of the step of mobile light shade and image detecting element in the image detecting method in Fig. 3 embodiment according to the shift state of the image of the determinand on image detecting element;
Fig. 5 is according to make the flow chart of the step that image detecting element and light shade move in Fig. 4 according to the side-play amount of pupil image.
Description of reference numerals:
10: image detection device;
20: determinand;
100: light source;
110: light shade;
111: printing opacity perforate;
120: camera lens module;
122: frontal lens group;
124: spectrophotometric unit;
126: the first rear lens groups;
128: the second rear lens groups;
129: reflector;
130: image detecting element;
131: the first actuators;
132: the second actuators;
140: control unit;
B, B0, B1, B2: image beam;
D1: side-play amount;
J1: the second corresponding amount of movement;
L, L0, L1, L2: illuminating bundle;
M1: the first corresponding amount of movement;
PL: pupil;
R: retina;
200,201,202,1300,1301,1302, F0, F1, F2, P0, P1, P2: position;
S110, S120, S130, S140, S141, S1411, S142, S143, S144, S1421, S1441, S1442, S145: step.
The specific embodiment
Fig. 1 is the schematic diagram of the image detection device of one embodiment of the invention.Fig. 2 is the detailed maps according to light shade in the embodiment of Fig. 1.Please also refer to Fig. 1.In the present embodiment, image detection device 10 is in order to detect determinand 20.In the present embodiment, determinand 20 is for example eyeball, yet in other embodiments, determinand 20 can be the object that any optical system detection that can utilize image detection device 10 arrives.Image detection device 10 comprises light source 100, light shade 110, camera lens module 120, image detecting element 130 and control unit 140.Light source 100 can be visible light source, and illuminating bundle L can be provided.For example, or in other embodiments, light source 100 can be also invisible light source, is the light source that infrared beam is provided.Light shade 110 is configured on the bang path of illuminating bundle L.Please refer to Fig. 1 and Fig. 2, light shade 110 has printing opacity perforate 111 again, and illuminating bundle L passes through light shade 110 through printing opacity perforate 111.In the present embodiment, printing opacity perforate 111 for example can be annular aperture, and illuminating bundle L can form ring-shaped lighting light beam after by this annular aperture.Wherein, ring-shaped lighting light beam can be avoided in optical fundus, producing more concentrated reflected light, and can by pupil PL, illuminate the retina R that is positioned at optical fundus equably, therefore can increase image quality.Yet in other embodiments, printing opacity perforate 111 can have different shapes from shape design according to the type of determinand 20, the present invention is not as limit.
In the present embodiment, camera lens module 120 is configured on the bang path from the illuminating bundle L of printing opacity perforate 111, so that illuminating bundle L is projected to determinand 20.Determinand 20 is reflected into image beam B by illuminating bundle L.Camera lens module 120 is configured on the bang path of image beam B.Wherein, camera lens module 120 can comprise frontal lens group 122 and spectrophotometric unit 124.Frontal lens group 122 is configured on the bang path from the illuminating bundle L of printing opacity perforate 111, and is configured on the bang path from the image beam B of determinand 20.Spectrophotometric unit 124 is configured on the bang path of illuminating bundle L and image beam B.In the present embodiment, spectrophotometric unit 124 is spectroscope (beam splitter), and partial penetration partially reflecting mirror, for example, be semi-penetration semi-reflective mirror.Yet in other embodiments, spectrophotometric unit 124 can be also the beam splitter of polarizing beam splitter (polarizing beam splitter, PBS) or other types.Spectrophotometric unit 124 makes to be passed to frontal lens group 122 from the illuminating bundle L of printing opacity perforate 111, and makes to be passed to image detecting element 130 from the image beam B of determinand 20.
In the present embodiment, camera lens module 120 also comprises the first rear lens group 126, be configured on the bang path of illuminating bundle L, and between printing opacity perforate 111 and spectrophotometric unit 124.In addition, according to actual demand, camera lens module 120 can comprise reflector 129, be configured between the first rear lens group 126 and printing opacity perforate 111, and the illuminating bundle L from printing opacity perforate 111 is reflexed to spectrophotometric unit 124, for example, be to make illuminating bundle L be passed to spectrophotometric unit 124 by the first rear lens group 126.Yet, in other embodiments, in camera lens module 120, also can not be provided with reflector 129, and allow illuminating bundle L from printing opacity perforate 111 towards spectrophotometric unit 124.Or the first rear lens group 126 is configured between reflector 129 and printing opacity perforate 111.Reflector 129 is for example reflecting mirror (mirror) or reflecting prism.
In the present embodiment, camera lens module 120 also comprises the second rear lens group 128, be configured on the bang path of image beam B, and between spectrophotometric unit 124 and image detecting element 130.In addition, each lens group can comprise a slice lens or multi-disc lens, and in Fig. 1, is to take a slice lens as example.Moreover in the present embodiment, spectrophotometric unit 124 reflexes to frontal lens group 122 by least part of illuminating bundle L from printing opacity perforate 111, and penetrates spectrophotometric unit 124 and be passed to image detecting element 130 from least part of image beam B of frontal lens group 122.Yet, in other embodiments, also can be that at least part of illuminating bundle L from printing opacity perforate 111 penetrates spectrophotometric unit 124 and is passed to frontal lens group 122, and spectrophotometric unit 124 reflex to image detecting element 130 by least part of image beam B from frontal lens group 122.
When the pupil PL of eyeball 20 is positioned at position 200, the illuminating bundle L 0 that light source 100 sends can, by being positioned at the light shade 110 of position F 0, transmit and be passed to by frontal lens group 122 optical fundus of eyeball 20 towards eyeball 20 through spectrophotometric unit 124 light splitting.And the image beam B 0 on optical fundus can be imaged on the position 1300 of image sensing unit 130 by frontal lens group 122 again.Image detecting element 130 is configured on the bang path from the image beam B of camera lens module 120, and camera lens module 120 is being positioned at the image imaging of determinand 20 in the image detecting element 130 of position P 0.Wherein, image detecting element 130 for example can be charge coupled cell (Charge Coupled Device, CCD) or CMOS sensing element (Complementary Metal-oxide-semiconductor Sensor, CMOS Sensor), it can detect the image beam B from determinand 20.In the present embodiment, the structure of camera lens module 120 and arrangement mode are only for illustrating, and the present invention is not as limit.
In the present embodiment, control unit 140 is electrically connected to image detecting element 130, and according to the shift state of image detecting element 130 detected images, image detecting element 130 and light shade 110 is moved.Wherein, control unit 140 is for example processor (processer) or control chip.The movement of the movement of image detecting element 130 and light shade 110 all can be relatively moving with respect to light source 100 and camera lens module 120.For example, image detecting element 130 can move with respect to whole image detection device 10 image detection device 10 inside with light shade 110.That is, in the present embodiment, can be by the synergism of image detecting element 130 and control unit 140, when determinand 20 is during in mobile status, the position of control unit 140 capable of regulating image detecting elements 130 and light shade 110 is to adapt to the image beam B of mobile determinand 20, therefore can reduce the impact of the movement of determinand 20 on image, and then obtain correct capture scope and improve image quality.
In the present embodiment, image detection device 130 can also comprise the first actuator 131 and the second actuator 132.The first actuator 131 is electrically connected to control unit 140, and control unit 140 orders about light shade 110 by the first actuator 131 and moves.The second actuator 132 is electrically connected to control unit 140, and control unit 140 orders about image detecting element 130 by the second actuator 132 and moves.In the present embodiment, control unit 140 can pick out the pupil image in the detected image of image detecting element 130, and can judge the position of pupil image on image detecting element 130, and can calculate the side-play amount of the position of pupil image, and control unit 140 can move image detecting element 130 and light shade 110 according to the side-play amount of pupil image.That is, in the present embodiment, can control the position that the first actuator 131 and the second actuator 132 adjustment image detecting elements 130 and light shade 110 move to offset the side-play amount of pupil PL and follow the trail of pupil PL by control unit 140, thus, when camera lens module 120 is focused in optical fundus (as retina R), the image of retina R can be correspondingly imaged on image detecting element 130, and cause only having the image imaging of part retina R compared with not having on parts of images detecting unit 130 because of capture scope mistake, another part image detecting element 130 receives for example, reflected light from the tissue (iris) beyond pupil PL.Thus, just can effectively improve and move the problem that causes capture scope mistake because of eyeball.In addition, due to when eyeball moves, amphiblestroid image also can and then move, and now because image detecting element 130 is also along with the movement of amphiblestroid image is moved, therefore amphiblestroid image for image detecting element 130 close to the state in static.So now, when image detecting element 130 carries out capture, obtained amphiblestroid image does not more have fuzzy problem.
Specifically, in the present embodiment, whether the position that control unit 140 can first be confirmed pupil image is at the middle section of image detecting element 130.If NO, calculate the side-play amount of the position of pupil image.For example, when eyeball 20 is from position 200 while moving to position 201, the side-play amount of the position of pupil image is side-play amount d1, that is pupil image is during from the distance of P0Dao position, position P1, control unit 140 calculates the first corresponding amount of movement M1 of bright dipping shade 110 and the second corresponding amount of movement J1 of image detecting element 130 according to the side-play amount d1 of pupil image.Control unit 140 make light shade 110 move (that is light shade 110 moves to position F1 from position F0) with the first corresponding amount of movement M1 and image detecting element 130 is moved with the second corresponding amount of movement J1 (that is image detecting element 130 is from position 1300 moves to position 1301), illuminating bundle L1 incident eyeball 20, and the optical fundus of eyeball 20 is at the formed image alignment image detecting element 130 of image detecting element 130.Also or, when eyeball 20 moves by 200Dao position 202, position, its pupil image is imaged on P2, and light shade 110 can make illuminating bundle L2 can aim at pupil PL by correspondingly moving to position F 2, and image detecting element 130 can correspondingly move to position 1302 make image beam B2 can alignment image detecting unit 130.Therefore, when pupil PL moves due to health or eye, the illuminating bundle L that light source 100 sends still can aim at pupil PL and Uniform Illumination optical fundus, and the image on optical fundus still can be maintained in image detecting element 130, so image detecting element 130 still can obtain stable eye fundus image clearly.Above-mentioned light shade 110 and the moving direction of image detecting element 130 are only for illustrating, the actual moving direction of light shade 110 and the moving direction of image detecting element 130 can corresponding camera lens module 120 optical texture and different, the present invention is not as limit.
In the image detection device 10 of the present embodiment, because image detecting element 130 and light shade 110 can move with respect to whole image detection device 10, and user can deliberately move whole image detection device 10 and improve capture scope mistake or image blurring problem, therefore the image detection device 10 of the present embodiment can be used as hand-held optical fundus video camera, and hand-held optical fundus camera technique is achieved and meets demand.
Fig. 3 is the flow chart of the image detecting method in one embodiment of the invention.Please refer to Fig. 1, Fig. 2 and Fig. 3, the image detecting method of the present embodiment can be applicable in the image detection device 10 of Fig. 1, but the present invention is not as limit.In the present embodiment, image detecting method comprises the following steps.First, provide illuminating bundle L (step S110), for example, for utilizing light source 100 that illuminating bundle L is provided.Make again illumination light L be passed to determinand (step S120) by the printing opacity perforate 111 of light shade 110, for example, illuminating bundle L is passed to determinand 20 by camera lens module 120.Then, by the image imaging of determinand 20, on image detection Unit 130 (step S130), for example scioptics module 120 is delivered to the image beam B of determinand 20 on image detecting element 130 again.Afterwards, according to the shift state of the image of the determinand 20 on image detecting element 130, come mobile light shade 110 and image detecting element 130 (step S140), for example, according to the image shift amount d1 of determinand 20, come moving images sensing cell 130 and light shade 110.Wherein, the determinand 20 in step S120 for example can be eyeball, and printing opacity perforate 111 can be annular aperture.Specifically, in step S130, the method by the image imaging of determinand 20 on image detecting element 130 can comprise utilize camera lens module 120 by the image imaging of determinand 20 on image detecting element 130.And in step S140, according to the shift state of the image of the determinand 20 on image detecting element 130, come the method for mobile light shade 110 and image detecting element 130 also to comprise and make light shade 110 move and image detecting element 130 is moved relative to camera lens module 120 relative to camera lens module 120.Wherein, the moving direction that light shade 110 moves relative to camera lens module 120 and moving direction that image detecting element 130 moves relative to camera lens module 120 for example be can be in the same way or oppositely, the design of visible mirror head module 120 and determining.Other steps of the How It Works of image sensering device 130 can repeat no more at this with reference to the explanation of above-mentioned image sensering device 10, and the order of above-mentioned steps is that the present invention is not as limit in order to explanation.
Fig. 4 is according to carry out the flow chart of the step of mobile light shade and image detecting element in the image detecting method in Fig. 3 embodiment according to the shift state of the image of the determinand on image detecting element.Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.In the present embodiment, step S140 comprise position (step S 142) on image detecting element 130 of pupil image (step S141) in the detected image of recognisable image detecting unit 130, judgement pupil image, calculate pupil image position side-play amount (step S143) and according to the side-play amount of pupil image, make image detecting element 130 and light shade 110 move (step S144).Specifically, in the present embodiment, can before execution step S142, first judge whether image detecting element 130 can pick out the image (step 1411) of pupil PL.If NO, get back to step S141 and identification again.If yes, carry out step S142 to differentiate the position of pupil image on image detecting element 130.By this, to increase the correctness while catching image.In addition,, before step S140 is also included in the side-play amount of the position of calculating pupil image, first confirm that the position of pupil image, whether at the middle section (step S1421) of image detecting element 130, if NO, calculates the side-play amount of the position of pupil image.If yes, can carry out to optical fundus the seizure (step S145) of image.After catching image, can return step S141 to prepare follow-up shooting.By this, image detecting element 130 can automatically be followed the trail of the position of pupil PL and stably light be imported to optical fundus by pupil PL with light shade 110, to provide optical fundus even and stable lighting source.
More specifically, as Fig. 5 illustrates, step S144 also comprises according to the side-play amount of pupil image and calculates the first corresponding amount of movement M1 of bright dipping shade 110 and the second corresponding amount of movement J1 (step 1441) of image detecting element 130 and with the first corresponding amount of movement M1 and the second corresponding amount of movement J1 mobile light shade 110 and image detecting element 130 respectively, so that the pupil PL of illuminating bundle L incident eyeball, and make the optical fundus of eyeball at the formed image alignment image detecting element 130 of image detecting element 130 (step 1442).Other steps of the How It Works of image sensering device 130 can repeat no more at this with reference to the explanation of above-mentioned image sensering device 10, and the order of above-mentioned steps is that the present invention is not as limit in order to illustrate.
In sum, in the above embodiment of the present invention, utilize control unit to differentiate the image space of the determinand image on image detecting element, if its image space is offset, can for example, by control unit (being processor), calculating the side-play amount of determinand image imaging and need feed back to the corresponding amount of movement of controlling image detecting element and light shade, feed back to again control image detecting element and light shade to change the position of image detecting element and light shade, therefore can make source alignment determinand (being for example eyeball) and make the image alignment image detecting element of determinand.By this, image detection device can automatically adapt to vibration or the movement of determinand, and then reduce its vibration or move the impact on image quality, and can reduce time and the difficulty of detected image, for example, in the application of medical image, automatically the time and the difficulty that detect eyeball pupil position and automatically focus and to catch image, can save medical personnel's manual focus on optical fundus, patient also can detect eye fundus image at any time voluntarily by the image detection device of this automatization, and can save a large amount of medical resources and Waiting time, can obtain good eye fundus image and be further analyzed diagnosis for medical personnel, and then the increase convenience of user and the accuracy of diagnosis.
And, in the image detecting method of the above embodiment of the present invention, owing to reducing the image shift degree of determinand correspondingly to make image detecting element and light shade move according to the state of the image shift of the detected determinand in image sensing unit, so image detecting method can be adapted to the movement of determinand and obtain good capture scope and image quality.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. an image detection device, is characterized in that, in order to detect determinand, this image detection device comprises:
Light source, provides illuminating bundle;
Light shade, is configured on the bang path of this illuminating bundle, and this light shade has printing opacity perforate, and this illuminating bundle passes through this light shade through this printing opacity perforate;
Camera lens module, is configured on the bang path from the illuminating bundle of this printing opacity perforate, and so that this illuminating bundle is projected to this determinand, this determinand is reflected into image beam by this illuminating bundle, and this camera lens module is configured on the bang path of this image beam;
Image detecting element, is configured on the bang path from this image beam of this camera lens module, this camera lens module by the image imaging of this determinand on this image detecting element; And
Control unit, is electrically connected to this image detecting element, and according to the shift state of detected this image of this image detecting element, this image detecting element and this light shade is moved.
2. image detection device according to claim 1, it is characterized in that, this determinand is eyeball, and this control unit picks out the pupil image of this eyeball in detected this image of this image detecting element, and judge the position of this pupil image on this image detecting element, and calculate the side-play amount of this position of this pupil image, and this control unit moves this image detecting element and this light shade according to this side-play amount of this pupil image.
3. image detection device according to claim 2, is characterized in that, this control unit first confirms that this position of this pupil image, whether at the middle section of this image detecting element, if NO, calculates the side-play amount of this position of this pupil image.
4. image detection device according to claim 3, it is characterized in that, this control unit calculates the first corresponding amount of movement of this light shade and the second corresponding amount of movement of this image detecting element according to this side-play amount of this pupil image, this control unit makes this light shade move with this first corresponding amount of movement, and after this image detecting element is moved with this second corresponding amount of movement, the pupil of this this eyeball of illuminating bundle incident, and the optical fundus of this eyeball is at this image detecting element of the formed image alignment of this image detecting element.
5. image detection device according to claim 1, is characterized in that, also comprises:
The first actuator, is electrically connected to this control unit, and this control unit orders about this light shade by this first actuator and moves; And
The second actuator, is electrically connected to this control unit, and this control unit orders about this image detecting element by this second actuator and moves.
6. image detection device according to claim 1, is characterized in that, this camera lens module comprises:
Frontal lens group, is configured on the bang path from this illuminating bundle of this printing opacity perforate, and is configured on the bang path from this image beam of this determinand; And
Spectrophotometric unit, is configured on the bang path of this illuminating bundle and this image beam, and this spectrophotometric unit makes to be passed to this frontal lens group from this illuminating bundle of this printing opacity perforate, and makes to be passed to this image detecting element from this image beam of this determinand.
7. image detection device according to claim 1, is characterized in that, the movement of the movement of this image detecting element and this light shade is all relatively moving with respect to this light source and this camera lens module.
8. an image detecting method, in order to detect determinand, is characterized in that comprising:
Illuminating bundle is provided;
Make this illuminating bundle be passed to this determinand by the printing opacity perforate of light shade;
By the image imaging of this determinand on image detecting element; And
According to the shift state of this image of this determinand on this image detecting element, move this light shade and this image detecting element.
9. image detecting method according to claim 8, is characterized in that, this determinand is eyeball, and comprises according to the step that the shift state of this image of this eyeball on this image detecting element moves this light shade and this image detecting element:
Pupil image in detected this image of this image detecting element of identification;
Judge the position of this pupil image on this image detecting element;
Calculate the side-play amount of this position of this pupil image; And
According to this side-play amount of this pupil image, this image detecting element and this light shade are moved.
10. image detecting method according to claim 9, is characterized in that, the step that moves this light shade and this image detecting element according to the shift state of this image of this determinand on this image detecting element also comprises:
Before the side-play amount of this position of calculating this pupil image, first confirm that this position of this pupil image, whether at the middle section of this image detecting element, if NO, calculates the side-play amount of this position of this pupil image.
11. image detecting methods according to claim 10, is characterized in that, the step that this image detecting element and this light shade is moved according to this side-play amount of this pupil image comprises:
According to this side-play amount of this pupil image, calculate the first corresponding amount of movement of this light shade and the second corresponding amount of movement of this image detecting element; And
With this first corresponding amount of movement, move respectively this light shade and this image detecting element with this second corresponding amount of movement, so that the pupil of this this eyeball of illuminating bundle incident, and make the optical fundus of this eyeball at this image detecting element of the formed image alignment of this image detecting element.
12. image detecting methods according to claim 8, is characterized in that, this determinand is eyeball, and the method on this image detecting element comprises by the image imaging of this determinand:
Utilize camera lens module by this image imaging of this determinand on this image detecting element; And
The method that moves this light shade and this image detecting element according to the shift state of this image of this eyeball on this image detecting element comprises:
This light shade is moved relative to this camera lens module; And
This image detecting element is moved relative to this camera lens module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321386.7A CN103654710B (en) | 2012-09-03 | 2012-09-03 | Image detection device and image detecting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110811542A (en) * | 2018-08-14 | 2020-02-21 | 晋弘科技股份有限公司 | Fundus camera |
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| CN103654710B (en) | 2015-10-28 |
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