CN103654710B - Image detection device and image detecting method - Google Patents
Image detection device and image detecting method Download PDFInfo
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- CN103654710B CN103654710B CN201210321386.7A CN201210321386A CN103654710B CN 103654710 B CN103654710 B CN 103654710B CN 201210321386 A CN201210321386 A CN 201210321386A CN 103654710 B CN103654710 B CN 103654710B
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Abstract
The invention provides a kind of image detection device and image detecting method, 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.The bang path that light shade is configured in illuminating bundle has printing opacity perforate.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.Illuminating bundle is reflected into image beam by determinand.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.The shift state of the image of control unit detected by image detecting element makes image detecting element and light shade move.Image detection device and image detecting method can be adapted to the movement of determinand and obtain good capture scope and image quality.
Description
Technical field
The present invention relates to a kind of checkout gear and detection method, particularly relate to a kind of image detection device and image detecting method.
Background technology
In recent years, under the progress that semiconductor technologies and processing procedure make rapid progress, CMOS semiconductor sensor (complementary metal-oxide-semiconductor sensor, CMOS sensor) and charge coupled cell (charge coupled device, etc. CCD) volume of image sensering device, cost and power consumption reduce, and are thus widely used in such as on the portable product such as handheld digital camera or the camera of smart mobile phone.But, because the image sensering device on portable apparatus often makes image blurring due to the weak vibrations of user or movement, and then increase the degree of difficulty of user.
And in the application of Medical Instruments, such as in the physiologic images trap settings such as retina or optical fundus camera, owing to passing through narrow and small pupil to aim at retina, even therefore small vibration also significantly can affect the capture scope of optical system, and can cause image blurring, and then reduce image quality.Thus, doctor is often made to be difficult to judge the state of an illness according to the capture scope of mistake and fuzzy image.Physiological situation is differentiated for doctor in order to obtain image clearly, usually image sensering device is arranged on fixing tables, adjusts image sensering device to manually by medical personnel and focus again after aligning the pupil position of sufferer and carry out taking the photograph phase at its retina.Thus, the shooting one amphiblestroid photo in the end of opening one's eyes can spend the plenty of time, also easily causes the eyes of sufferer more tired simultaneously.Even for the patient suffering from the special diseases such as such as eyeball vibration, its uncontrollable eyeball or health vibration, thus make manually take amphiblestroid difficulty and spended time raising is many, also the burden of increase 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, illuminating bundle is reflected into image beam by determinand.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, and the image of determinand is imaged on image detecting element by camera lens module.Control unit is electrically connected to image detecting element, and the shift state of image detected by image detecting element makes image detecting element and light shade move.
In one embodiment of this invention, above-mentioned determinand is eyeball, and control unit picks out the pupil image of the eyeball in the image detected by 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 makes image detecting element and light shade move 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 is whether at the middle section of image detecting element, if NO, then 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 the incident eyeball of illuminating bundle, and the image alignment image detecting element that the optical fundus of eyeball is formed at image detecting element.
In one embodiment of this invention, above-mentioned image detection device also comprises the first actuator and the second actuator.First actuator is electrically connected to control unit, and control unit orders about light shade by the first actuator and moves.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 the illuminating bundle from printing opacity perforate be passed to frontal lens group, and makes the image beam from determinand be passed to image detecting element.
In one embodiment of this invention, the movement of above-mentioned image detecting element and the movement of light shade are all the relative movement relative 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.Illumination light is made to be passed to determinand by the printing opacity perforate of light shade.The image of determinand is imaged on image detecting element.Light shade and image detecting element is moved according to the shift state of the image of the determinand on image detecting element.
In one embodiment of this invention, above-mentioned determinand is eyeball, and pupil image in comprising detected by recognisable image detecting unit image according to the step that the shift state of the image of the eyeball on image detecting element moves light shade and image detecting element, judges the position of pupil image on image detecting element, calculate the side-play amount of the position of pupil image and according to the side-play amount of pupil image, image detecting element and light shade moved.
In one embodiment of this invention, before the step that the shift state of the above-mentioned image according to the determinand on image detecting element moves light shade and image detecting element is also included in the side-play amount of the position calculating pupil image, first confirm that the position of pupil image is whether at the middle section of image detecting element, if NO, then the side-play amount of the position of pupil image is calculated.
In one embodiment of this invention, the above-mentioned side-play amount according to pupil image makes image detecting element and the step of light shade movement comprise to calculate the first corresponding amount of movement of image detecting element according to the side-play amount of pupil image to move light shade and image detecting element respectively with the second corresponding amount of movement of light shade and with the first corresponding amount of movement and the second corresponding amount of movement, to make the pupil of the incident eyeball of illuminating bundle, and make the image alignment image detecting element that the optical fundus of eyeball is formed at image detecting element.
In one embodiment of this invention, the above-mentioned method be imaged on image detecting element of the image by determinand comprises and utilizes camera lens module to be imaged on image detecting element by the image of determinand.Further, the method moving light shade and image detecting element according to the shift state of the image of the eyeball on image detecting element comprises makes light shade move relative to camera lens module and image detecting element is moved relative to camera lens module.
Based on above-mentioned, in the image detection device and image detecting method of embodiments of the invention, state due to the image shift of the determinand detected by image sensing unit makes image detecting element and light shade move, and therefore 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 of light shade in the embodiment according to Fig. 1;
Fig. 3 is the flow chart of the image detecting method in one embodiment of the invention;
Fig. 4 is the flow chart according to the step moving 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 the flow chart of the step making image detecting element and the movement of light shade according to the side-play amount according to pupil image in Fig. 4.
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.
Detailed description of the invention
Fig. 1 is the schematic diagram of the image detection device of one embodiment of the invention.Fig. 2 is the detailed maps of light shade in the embodiment according to 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 such as eyeball, but in other embodiments, determinand 20 can be any object that the optical system detection of image detection device 10 can be utilized to arrive.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 can provide illuminating bundle L.Such as, or in other embodiments, light source 100 also can be invisible light source, is the light source providing infrared beam.Light shade 110 is configured on the bang path of illuminating bundle L.Please refer to Fig. 1 and Fig. 2 again, light shade 110 has printing opacity perforate 111, and illuminating bundle L passes through light shade 110 through printing opacity perforate 111.In the present embodiment, printing opacity perforate 111 such as can be annular aperture, and illuminating bundle L is by forming ring-shaped lighting light beam after this annular aperture.Wherein, ring-shaped lighting light beam can be avoided producing the reflected light comparatively concentrated in optical fundus, and can illuminate uniformly across pupil PL the retina R being positioned at optical fundus, therefore can increase image quality.But in other embodiments, printing opacity perforate 111 can have different shapes according to the type of determinand 20 from profile design, and 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.Illuminating bundle L is reflected into image beam B by determinand 20.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), i.e. partial penetration partially reflecting mirror is such as semi-penetration semi-reflective mirror.But in other embodiments, spectrophotometric unit 124 also can be the beam splitter of polarizing beam splitter (polarizingbeam 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 the image beam B from determinand 20 be passed to image detecting element 130.
In the present embodiment, camera lens module 120 also comprises the first rear lens group 126, is configured on the bang path of illuminating bundle L, and between printing opacity perforate 111 and spectrophotometric unit 124.In addition, according to the demand of reality, 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, be such as make illuminating bundle L be passed to spectrophotometric unit 124 by the first rear lens group 126.But, 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 such as reflecting mirror (mirror) or reflecting prism.
In the present embodiment, camera lens module 120 also comprises the second rear lens group 128, is 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 is for a slice lens in FIG.Moreover in the present embodiment, at least part of illuminating bundle L from printing opacity perforate 111 is reflexed to frontal lens group 122 by spectrophotometric unit 124, and penetrate spectrophotometric unit 124 from least part of image beam B of frontal lens group 122 and be passed to image detecting element 130.But, in other embodiments, also can be penetrate spectrophotometric unit 124 from least part of illuminating bundle L of printing opacity perforate 111 and be passed to frontal lens group 122, and at least part of image beam B from frontal lens group 122 be reflexed to image detecting element 130 by spectrophotometric unit 124.
When the pupil PL of eyeball 20 is positioned at position 200, the illuminating bundle L 0 that light source 100 sends, by being positioned at the light shade 110 of position F 0, being transmitted towards eyeball 20 through spectrophotometric unit 124 light splitting and is passed to the optical fundus of eyeball 20 by frontal lens group 122.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 the image of determinand 20 is imaged on the image detecting element 130 being positioned at position P 0 by camera lens module 120.Wherein, image detecting element 130 such as can be charge coupled cell (Charge Coupled Device, or CMOS sensing element (ComplementaryMetal-oxide-semiconductor Sensor CCD), 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, the present invention is not as limit.
In the present embodiment, control unit 140 is electrically connected to image detecting element 130, and the shift state of image detected by image detecting element 130 makes image detecting element 130 and light shade 110 move.Wherein, control unit 140 is such as processor (processer) or control chip.The movement of image detecting element 130 and the movement of light shade 110 all can be relative to the relative movement of light source 100 with camera lens module 120.For example, image detecting element 130 and light shade 110 can move relative to whole image detection device 10 image detection device 10 inside.That is, in the present embodiment, by the synergism of image detecting element 130 and control unit 140, when determinand 20 is in mobile status, the position of control unit 140 adjustable image detecting element 130 and light shade 110 is to adapt to the image beam B of the determinand 20 of movement, therefore can reduce the impact of movement on image of determinand 20, and then obtain correct capture scope and improve image quality.
In the present embodiment, image detection device 130 also can comprise the first actuator 131 and the second actuator 132.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.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 image detected by image detecting element 130, and the position of pupil image on image detecting element 130 can be judged, and can calculate the side-play amount of the position of pupil image, and control unit 140 can make image detecting element 130 and light shade 110 move according to the side-play amount of pupil image.That is, in the present embodiment, control the first actuator 131 and the second actuator 132 by control unit 140 to adjust image detecting element 130 and light shade 110 and move to offset the side-play amount of pupil PL and follow the trail of the position of pupil PL, thus, when camera lens module 120 is focused when optical fundus (as retina R), the image of retina R can be correspondingly imaged on image detecting element 130, and more do not have and cause only having the image of part retina R to be imaged on parts of images detecting unit 130 because of capture scope mistake, another part image detecting element 130 then receives the reflected light of the tissue (such as iris) beyond from pupil PL.Thus, just can effectively improve because eyeball moves the problem causing capture scope mistake.In addition, due to when eyeball moves, amphiblestroid image also can and then movement, and now because image detecting element 130 also moves along with the movement of amphiblestroid image, therefore amphiblestroid image for image detecting element 130 close to being in static state.So now when image detecting element 130 carries out capture, acquired amphiblestroid image does not more have fuzzy problem.
Specifically, in the present embodiment, control unit 140 first can confirm that the position of pupil image is whether at the middle section of image detecting element 130.If NO, then the side-play amount of the position of pupil image is calculated.For example, when eyeball 20 moves to position 201 from position 200, the side-play amount of the position of pupil image is side-play amount d1, that is pupil image from position P0 to the distance of position P1 time, 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 makes 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 afterwards (that is image detecting element 130 moves to position 1301 afterwards from position 1300) with the second corresponding amount of movement J1, the incident eyeball 20 of illuminating bundle L1, and the image alignment image detecting element 130 that the optical fundus of eyeball 20 is formed at image detecting element 130.Also or, when eyeball 20 to move by position 200 to position 202, its pupil image is imaged on P2, and light shade 110 makes illuminating bundle L2 can aim at pupil PL by correspondingly moving to position F 2, and image detecting element 130 correspondingly can move to position 1302 and makes 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, and therefore 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 may correspond to the optical texture of camera lens module 120 and different, and 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 relative to whole image detection device 10, and user deliberately can move whole image detection device 10 to improve capture scope mistake or image blurring problem, therefore the image detection device 10 of the present embodiment can be used as hand-held fundus angiography instrument, and makes hand-held fundus angiography technology be achieved and meet 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), such as, for utilizing light source 100 to provide illuminating bundle L.Make illumination light L be passed to determinand (step S120) by the printing opacity perforate 111 of light shade 110 again, such as, illuminating bundle L is passed to determinand 20 by camera lens module 120.Then, the image of determinand 20 is imaged on image and detects (step S130) on Unit 130, such as the image beam B of determinand 20 is delivered on image detecting element 130 by scioptics module 120 again.Afterwards, move light shade 110 and image detecting element 130 (step S140) according to the shift state of the image of the determinand 20 on image detecting element 130, such as, move image sensing unit 130 and light shade 110 according to the image shift amount d1 of determinand 20.Wherein, the determinand 20 in step S120 such as can be eyeball, and printing opacity perforate 111 can be annular aperture.Specifically, in step s 130, which, by the image of determinand 20, the method be imaged on image detecting element 130 can comprise and utilizes camera lens module 120 to be imaged on image detecting element 130 by the image of determinand 20.And in step S140, the method moving light shade 110 and image detecting element 130 according to the shift state of the image of the determinand 20 on image detecting element 130 can also comprise makes light shade 110 move relative to camera lens module 120 and make image detecting element 130 move relative to camera lens module 120.Wherein, light shade 110 relative to camera lens module 120 movement moving direction and image detecting element 130 such as to be can be in the same way or oppositely relative to the moving direction of camera lens module 120 movement, the design of visible mirror head module 120 and determining.Other steps of the How It Works of image sensering device 130 can refer to the explanation of above-mentioned image sensering device 10, then repeat no more at this, and the order of above-mentioned steps is that the present invention is not as limit in order to illustrate.
Fig. 4 is the flow chart according to the step moving 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, the pupil image (step S141) during step S140 comprises detected by recognisable image detecting unit 130 image, judge the position of pupil image on image detecting element 130 (step S 142), calculate the side-play amount (step S143) of the position of pupil image and according to the side-play amount of pupil image, image detecting element 130 and light shade 110 are moved (step S144).Specifically, in the present embodiment, can first judge whether image detecting element 130 can pick out the image (step 1411) of pupil PL before execution step S142.If NO, then step S141 is got back to and identification again.If yes, then step S142 is carried out to differentiate the position of pupil image on image detecting element 130.By this, to increase correctness when catching image.In addition, before step S140 is also included in the side-play amount of the position calculating pupil image, first confirm that the position of pupil image is whether at the middle section (step S1421) of image detecting element 130, if NO, then calculates the side-play amount of the position of pupil image.If yes, then the seizure (step S145) of image can be carried out to optical fundus.After seizure image, step S141 can be returned to prepare follow-up shooting.By this, image detecting element 130 and light shade 110 automatically can be followed the trail of the position of pupil PL and stably light be imported optical fundus by pupil PL, with the lighting source providing optical fundus even and stable.
More specifically, show as shown graphically in fig 5, step S144 also comprises and calculates the first corresponding amount of movement M1 of bright dipping shade 110 according to the side-play amount of pupil image and move light shade 110 and image detecting element 130 respectively with 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, to make the pupil PL of the incident eyeball of illuminating bundle L, and make the image alignment image detecting element 130 (step 1442) that the optical fundus of eyeball is formed at image detecting element 130.Other steps of the How It Works of image sensering device 130 can refer to the explanation of above-mentioned image sensering device 10, then repeat no more at this, 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, control unit is utilized to differentiate the image space of the determinand image on image detecting element, if its image space offsets, then calculate the side-play amount of determinand image imaging by control unit (being such as processor) and the corresponding amount of movement controlling image detecting element and light shade need be fed back to, feed back to again and control image detecting element and light shade to change the position of image detecting element and light shade, therefore can make source alignment determinand (such as eyeball) and make the image alignment image detecting element of determinand.By this, image detection device automatically can adapt to vibration or the movement of determinand, and then reduce its vibration or the mobile impact on image quality, and time and the difficulty of detected image can be reduced, such as in the application of medical image, automatic detection eyeball pupil position and auto-focusing on optical fundus to catch time and the difficulty that image can save medical personnel's manual focus, patient also detects eye fundus image at any time voluntarily by the image detection device of this automatization, and a large amount of medical resource and Waiting time can be saved can obtain good eye fundus image for medical personnel and be further analyzed diagnosis, and then increase the convenience of user and the accuracy of diagnosis.
And, in the image detecting method of the above embodiment of the present invention, because the state of the image shift of the determinand detected by image sensing unit moves correspondingly to make image detecting element and light shade and reduces the image shift degree of determinand, therefore image detecting method can be adapted to the movement of determinand and obtain good capture scope and image quality.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments 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 illuminating bundle is reflected into image beam by this determinand, 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, and the image of this determinand is imaged on this image detecting element by this camera lens module; And
Control unit, is electrically connected to this image detecting element, and according to the shift state of the image of this determinand and the middle section 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 this image detected by 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 the middle section of this image detecting element, and this control unit makes this image detecting element and this light shade move according to this side-play amount of this pupil image.
3. image detection device according to claim 2, it is characterized in that, this control unit first confirms that this position of this pupil image is whether at the middle section of this image detecting element, if NO, then calculates the side-play amount of this position of this pupil image and the middle section of this image detecting element.
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 position of this pupil image and this side-play amount of the middle section of this image detecting element, 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 illuminating bundle this eyeball incident, and this image detecting element of image alignment that the optical fundus of this eyeball is formed at this image detecting element.
5. image detection device according to claim 1, is characterized in that, also comprises:
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
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 this image beam from this determinand be passed to this image detecting element.
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 the relative movement relative 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;
This illuminating bundle is made to be passed to this determinand by the printing opacity perforate of light shade;
The image of this determinand is imaged on image detecting element; And
Shift state according to this image of the middle section on this image detecting element and this determinand moves 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 this image detected by 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
This side-play amount according to the middle section on this position of this pupil image and this image detecting element makes this image detecting element and this light shade move.
10. image detecting method according to claim 9, is characterized in that, the step moving 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 calculating this pupil image, first confirm that this position of this pupil image is whether at the middle section of this image detecting element, if NO, then the side-play amount of the middle section on this position of this pupil image and this image detecting element is calculated.
11. image detecting methods according to claim 10, is characterized in that, according to this side-play amount of this pupil image, the step of this image detecting element and this light shade movement are comprised:
The first corresponding amount of movement of this light shade and the second corresponding amount of movement of this image detecting element is calculated according to this position of this pupil image and this side-play amount of the middle section on this image detecting element; And
With this first corresponding amount of movement and this second corresponding amount of movement this light shade mobile and this image detecting element respectively, to make the pupil of this illuminating bundle this eyeball incident, and make this image detecting element of image alignment that the optical fundus of this eyeball is formed at this image detecting element.
12. image detecting methods according to claim 8, is characterized in that, this determinand is eyeball, and the method that the image of this determinand is imaged on this image detecting element is comprised:
Camera lens module is utilized to be imaged on this image detecting element by this image of this determinand; And
The method moving this light shade and this image detecting element according to the shift state of this image of the middle section on this image detecting element and this eyeball 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210321386.7A CN103654710B (en) | 2012-09-03 | 2012-09-03 | Image detection device and image detecting method |
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