CN205181290U - Light field formula capsule endoscope camera with focus on function after shooing - Google Patents
Light field formula capsule endoscope camera with focus on function after shooing Download PDFInfo
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- CN205181290U CN205181290U CN201520036796.6U CN201520036796U CN205181290U CN 205181290 U CN205181290 U CN 205181290U CN 201520036796 U CN201520036796 U CN 201520036796U CN 205181290 U CN205181290 U CN 205181290U
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Abstract
The utility model provides a medical treatment is with light field formula capsule endoscope camera that focuses on after can shooing again. Imaging system comprises primary mirror piece, micro mirror piece array and corresponding photoelectric sensor, and the image of arbitrary local focus can be carried out in the formation. Can repeatedly set up ordinaryly in such capsule camera and light field technique imaging system, only to blurred image retreatment in order to reduce the work load that focuses on again.
Description
Technical field
Light field formula medical diagnosis capsule endoscope imaging technique
Background technology
Capsule endoscope camera is a kind of miniature digital camera, and external volume is generally between one to two centimetres, and shape is capsule particle shape.After camera is swallowed by patient, be used for carrying out digestive tract imaging contrast.The in vivo imaging technology, as a result of non-invasive painless, is in recent years, the international medical detection diagnosis led base a technological breakthrough, is the future 20 years one of the fastest growing high-tech medical diagnosis and treatment technology.Its market scale possesses the annual sales amount potential of 10,000,000,000 dollars.Its structure, in patent document (US5604531,1997; CN1427692A, 2003) be described later in detail in.In a word, the formation of this camera mainly comprises transparent shell, optical imaging system, LED illumination light source, transmitting set, micro cell electric power system.The image information that capsule cameras obtains is broadcast by built-in wireless transmitter, is received the imaging of equipment real-time reception outward by patient body.After capsule cameras enters digestive tract, gastrointestinal tissue is relied on to wriggle, from up to down one-way trip.About more than four to eight hours of the holdup time in body.Take more than 50,000 photos therebetween, the conversion of machine software arranges as calculated, and the image series of generation can be consulted for doctor and be used as the foundation of diagnosis pathological changes.The video signal obtained is deposited by external after instant wireless broadcasting, also can be temporary in camera internal (patent US8472795B2,2013).Capsule cameras can built-in frequency modulator change signal broadcast frequency, also can built-in wireless reception module and possess distant control function.
Due to be subject to can swallowable capsule volume extreme restriction, capsule endoscope camera generally adopts the optical glass of single fixed focal length as main lens.Image-forming range in digestive tract inside is generally take centimetre length as unit of account.Under this ultra-short range object distance condition, the field depth of imaging is compressed by large scale, and the single image definition thus finally obtained definitely does not ensure.The focusing range of optimized image also improves the design difficulty that its definition is miniature imaging device always.Multiple lens group that general camera generally adopts and and corresponding automatic focus Light Electronic Control System, because volume is excessive, the method that there is no under current technical conditions is applied to capsule endoscope camera.Although capsule endoscope camera is looked to external transmission several ten thousand image photographs in physical examination in once, really valuable only have crucial tens.If these tens Zhao Pian No have accurate focusing, camera by rear just can not reimaging.Unless repeated one or many radiography, then can make up without effective method.In a word, uncontrollable auto-focusing and one-time imaging can not be retaken, and are the innate system design defect of capsule endoscope camera.
The object of the invention is to provide a new lens design scheme to improving the image quality of capsule endoscope camera, the contrast examination of patient body digested road can disposablely be completed.
Summary of the invention
Light-field camera is novel digital camera (patent US8724014,2014) popular in recent years.Except the intensity measuring light except the same with traditional camera and color, it can also measure the direction of light movement in certain given time.Use optical field imaging technology can parse one group of local clear photograph from a fuzzy image.
Present invention utilizes this feature of light field technology, by loading one group of micromirror array in miniature endoscope camera, the overall 3 d light fields of taken the photograph digestive tract local depending on face being remake, and then improves the four-dimensional imaging quality of capsule endoscope camera.Feature of the present invention takes the lead in the world proposing one at present stage practicable lens design prioritization scheme, improves any local definition of capsular endoscope camera image.The micromirror array loaded does not increase the volume of original capsule endoscope camera, thus can not increase swallowing and draining burden of patient.As the computer software programs of post processing of image, can be obtained by commercial sources.In addition, can repeat to arrange in microencapsulation endoscope camera two independently one common with a light field formula imaging system, obtain two groups of relevant images.So only when the photographic fog of crux, its relevant light field photograph is completely refocused and produces local image clearly, to save a large amount of human resources.
Accompanying drawing explanation
Fig. 1 is light field technology imaging schematic diagram;
Fig. 2 is capsule endoscope camera structure figure;
Fig. 3 is light field formula capsule endoscope camera structure figure;
Fig. 4 is that capsule endoscope camera possesses the light field formula and common imaging system structure chart that repeat to arrange;
Fig. 5 is that capsule endoscope camera possesses the light field formula and common imaging system structure chart that repeat to arrange;
Below in conjunction with drawings and Examples, the present invention is done into an explanation.
Fig. 1 is light field technology imaging schematic diagram.Extraneous light, after optical lens refraction, comes together near fixed-focus.And incident ray is refracted to photoelectric sensor by micromirror array again that be built in herein.Through this process, the intensity of incident ray and incident angle are resolved again.Each micro lens is recorded to a special angle component of incident beam.The micro lens of all arrays will be reduced into original incident illumination total amount after each component set.Photoelectric sensor thereby is achieved the 4D field information (2D light intensity and 2D angular) of incident ray, adds the incident illumination Xin breath amount received.
Fig. 2 is capsule endoscope camera structure figure.Incident ray by optical lens (10) focal imaging in photoelectric sensor (30).Internal illumination light source (40), image memory system (50), wireless transmitting system (60), electric power system (70).
Fig. 3 is light field formula capsule endoscope camera structure figure.Optical lens (10) micromirror array (20), photoelectric sensor (30), internal illumination light source (40), image memory system (50), wireless transmitting system (60), electric power system (70).
Fig. 4 is that capsule endoscope camera possesses the light field formula and common imaging system structure chart that repeat to arrange.Optical lens (10), micromirror array (20), photoelectric sensor (30), internal illumination light source (40), image memory system (50), wireless transmitting system (60), electric power system (70).
Fig. 5 is that capsule endoscope camera possesses the light field formula and common imaging system structure chart that repeat to arrange.Optical lens (10), micromirror array (20), photoelectric sensor (30), internal illumination light source (40), image memory system (50), wireless transmitting system (60), electric power system (70).
Detailed description of the invention
A practical example according to the present invention is the light field formula capsule endoscope camera that establishment one has again focusing function.As shown in Figure 3, this capsule cameras has LED illumination light source (40), optical glass (10), micromirror array (20), photoelectric sensing is clamored (30), image memory system (50), radio video transmitter (60), electric power system (70).Here optical glass (10) is single eyeglass of fixed focal length.At least one group of micromirror array (20) is inserted in primary mirror sheet (10) and photoelectric sensing is clamored between (30).Their relative distance each other presets.Micromirror array is generally positioned at main lens focus place.The contained micro mirror density of micromirror array (30) is higher, and its resolution is also better.Photoelectric sensing is clamored (30) by the optical signal of acceptance converts electrical picture signal temporary (50) to and broadcasts out external by transmitter (60).
As shown in Figure 3, the incident ray in camera through optical glass (10) focus on converge after, then Tong Over mono-group of micromirror array (20) again reflect scattering after by photoelectric sensing clamor (30) reception.With the picture signal that this obtains, contain the information of object light field, the intensity of such as light beam, color and direction of illumination.Then resolve and software processing through image computation model, the overall 3 d light fields of subject is remake, and surrounding scene is by reduction true to nature.Take pictures in last handling process at this, the light information focused on before and after principal plane is again resolved and is integrated, thus generated the clear pictures of one group of any local from front to back.In fact this be equal to the field depth adding fixed lens, or be equal to the focal length value changing camera lens, makes that fixed focal length is single-lens becomes zoom lens.Compared to general capsule cameras, key structural feature of the present invention is in extremely limited volume, be loaded with one group of micromirror array (20), capsule cameras the is possessed so-called function then focused on of first taking pictures.In addition, picture signal can radio play (60) immediately, also temporarily can leave camera internal (50) in, after treating that camera is excreted, then recycle.
According to this kind of Novel camera that the present invention builds, can be used for observing tube chamber and body cavity in body.The image obtained contains the field information of subject.Even if first image is clear not, after completing radiography program, the image that obtains can carry out reprocessing by machine as calculated, thus parses the photo of the clear focusing of local arbitrarily.In addition, light field formula capsule cameras is applicable to half-light and high velocity environment, and this is fabulous being suitable for for the imaging difficulty that this camera is causing through always walking to raise speed during gastric pouch.
Another practical example according to the present invention is the light field formula capsule endoscope camera again with focusing function of an establishment built-in Dual imaging systems.As shown in Figure 4, this camera is built-in with common with light field formula Dual imaging systems.Common imaging eyeglass (10) and light field formula imaging lens set (20) are positioned at same one end of camera, and close parallel is connected and shares same group of photoelectric sensor (30).Image incoming light, at the different local locations of photoelectric sensor (30), produces one group of image be associated.Relevant image procossing and visual techniques, have detailed introduction in patent documentation (US8724868B2,2014).Built-in two imaging systems in same portion capsule endoscope camera are as back-up system by light field formula imaging system.Only when key images is smudgy, just again can focus on by light field technology, parse local photograph clearly.So only need carry out reprocessing to a limited number of broad image thus save a large amount of human resourcess.The advantage of this design is that the volume of camera and hardware configuration can remain unchanged substantially.Because the resolution of normal image is a little more than the resolution of light field formula image, put in system this pair, normal image is decided to be preferentially checks.
Another practical example according to the present invention is the light field formula capsule endoscope camera again with focusing function of an establishment built-in Dual imaging systems.As shown in Figure 5, the imaging system of this camera is by two independently System's composition.Light field formula system (20) is positioned at one end of camera, and conventional system is positioned at the other end.Two systems independently produce relevant image.Lump-sum analysis degree due to light field formula image depends on quantity and the quality of micro mirror head group, and for the photoelectric sensor of same quality, its resolution is a little less than the resolution of normal image.So independently imaging system, makes light field image system that higher-quality photoelectric sensor can be selected to improve its resolution.
The present invention is using capsular endoscope camera as embodiment, but this invention is not limited to this system, can be applied to any digital imaging device.
Claims (3)
1. there is the light field formula capsule endoscope camera of focusing function again after taking pictures, it is characterized in that: imaging system is by primary mirror sheet, and micromirror array and corresponding photoelectric sensor are formed, and generate the image that can carry out any local focal.
2. there is the light field formula capsule endoscope camera of focusing function again after taking pictures, it is characterized in that: light field formula imaging system and the imaging of common imaging system independence.
3. there is the light field formula capsule endoscope camera of focusing function again after taking pictures, it is characterized in that: light field formula imaging system and common imaging system share same photoelectric sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520036796.6U CN205181290U (en) | 2015-01-14 | 2015-01-14 | Light field formula capsule endoscope camera with focus on function after shooing |
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| CN201520036796.6U CN205181290U (en) | 2015-01-14 | 2015-01-14 | Light field formula capsule endoscope camera with focus on function after shooing |
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| CN205181290U true CN205181290U (en) | 2016-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308729A (en) * | 2016-10-13 | 2017-01-11 | 成都英赛景泰光电技术有限公司 | Imaging method and device for endoscope as well as capsule type medical equipment |
| CN110944566A (en) * | 2017-05-19 | 2020-03-31 | 奥林巴斯株式会社 | 3D endoscope apparatus and 3D image processing apparatus |
| US11051680B1 (en) | 2019-12-11 | 2021-07-06 | Industrial Technology Research Institute | Endoscope stereo imaging device |
-
2015
- 2015-01-14 CN CN201520036796.6U patent/CN205181290U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308729A (en) * | 2016-10-13 | 2017-01-11 | 成都英赛景泰光电技术有限公司 | Imaging method and device for endoscope as well as capsule type medical equipment |
| CN106308729B (en) * | 2016-10-13 | 2017-11-24 | 成都英赛景泰光电技术有限公司 | Imaging method, device and capsule medical apparatus for endoscope |
| CN110944566A (en) * | 2017-05-19 | 2020-03-31 | 奥林巴斯株式会社 | 3D endoscope apparatus and 3D image processing apparatus |
| CN110944566B (en) * | 2017-05-19 | 2021-12-21 | 奥林巴斯株式会社 | 3D endoscope apparatus and 3D image processing apparatus |
| US11051680B1 (en) | 2019-12-11 | 2021-07-06 | Industrial Technology Research Institute | Endoscope stereo imaging device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20190114 |