CN112998633B - Control method for light output of endoscope and endoscope system - Google Patents
Control method for light output of endoscope and endoscope system Download PDFInfo
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- CN112998633B CN112998633B CN202110232790.6A CN202110232790A CN112998633B CN 112998633 B CN112998633 B CN 112998633B CN 202110232790 A CN202110232790 A CN 202110232790A CN 112998633 B CN112998633 B CN 112998633B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0655—Control therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention discloses a method for controlling the light output of an endoscope and an endoscope system, wherein the method for controlling the light output of the endoscope comprises the following steps: 1) acquiring light output quantity change coefficients of the mirror body in different motion states; 2) comparing the current image acquired by the mirror body with a preset image to obtain an initial light output quantity variable quantity; 3) acquiring the motion state of the mirror body, and applying the light output quantity change coefficient in the motion state to the initial light output quantity change quantity to obtain the final light output quantity change quantity; 4) and the light source outputs the final light output quantity according to the final light output quantity variation. The control method of the endoscope light output quantity of the invention combines the light output quantity variable quantity and the motion state by applying the light output quantity variable coefficient to the initial light output quantity variable quantity, so that the current image brightness can be more quickly close to the target brightness.
Description
Technical Field
The present invention relates to the field of endoscopes, and in particular, to a method for controlling the amount of light output from an endoscope and an endoscope system.
Background
In the prior art, an endoscope acquires images of a scene through an imaging assembly at the head end of a lens body, calculates whether the brightness of each frame of image is consistent with the preset image brightness, and changes the light output quantity of an endoscope light source if the brightness of each frame of image is inconsistent with the preset image brightness, so that the aim of keeping the image brightness stable is fulfilled.
However, this adjustment method is limited by the output frame rate of the imaging component at the head end of the mirror body, and when the mirror body moves rapidly or moves rapidly along with the cavity, the stability of the image brightness is not good, which results in that the image brightness is dim and bright, which affects the observation of the key image information, and is also not friendly to human eyes.
Those skilled in the art are therefore working to develop an endoscopic system with stable imaging brightness.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an endoscope system with stable imaging brightness.
In order to achieve the above object, the present invention provides a method for controlling an amount of light output from an endoscope, comprising the steps of:
1) acquiring light output quantity change coefficients of the mirror body in different motion states;
2) comparing the current image acquired by the mirror body with a preset image to obtain an initial light output quantity variable quantity;
3) acquiring the motion state of the mirror body, and applying the light output quantity change coefficient in the motion state to the initial light output quantity change quantity to obtain the final light output quantity change quantity;
4) and the light source outputs the final light output quantity according to the final light output quantity variation.
In order to obtain the initial light output amount variation, in step 2), the brightness of the current image acquired by the mirror body is calculated, and the brightness difference value is obtained after the brightness of the current image is compared with the brightness of a preset image, so that the initial light output amount variation is obtained according to the brightness difference value.
Preferably, the movement state of the mirror body comprises a mirror entering state, a mirror holding state, a non-zero state and a mirror withdrawing state;
when the mirror body is in a mirror entering state or a non-zero state, the light output quantity change coefficient acts on the initial light output quantity change quantity, and the amplitude of light output quantity reduction is restrained;
when the mirror body is in a mirror holding state, after the light output quantity variation coefficient acts on the initial light output quantity variation, the constant proportional relation between the light output quantity variation and the image brightness is kept;
when the mirror body is in a mirror-withdrawing state, the light-emitting quantity change coefficient acts on the light-emitting quantity change quantity, and then the light-emitting quantity increase amplitude is enlarged.
The control method of the endoscope light output quantity of the invention combines the light output quantity variable quantity and the motion state by applying the light output quantity variable coefficient to the initial light output quantity variable quantity, so that the current image brightness can be more quickly close to the target brightness.
The invention also provides an endoscope system, which comprises a mirror body, wherein the head end of the mirror body is provided with an imaging assembly, the rear end of the mirror body is provided with a light source, the imaging assembly is provided with a motion state monitoring module, the mirror body is provided with a light source light output quantity control module, and the light source light output quantity control module is electrically connected with the motion state monitoring module and is used for controlling the light output quantity of the light source.
Preferably, the light source light output amount control module includes:
the initial light output quantity acquiring unit is used for comparing the current image acquired by the mirror body with a preset image to obtain an initial light output quantity variable quantity;
the final light output quantity obtaining unit is used for collecting the information of the motion state monitoring module so as to obtain the motion state of the mirror body, and applying a light output quantity change coefficient in the motion state to the initial light output quantity change quantity so as to obtain a final light output quantity change quantity;
and a light output unit for making the light source output the final light output according to the final light output variation.
Preferably, the rate of the information of the motion state monitoring module collected by the final light output quantity obtaining unit is several times of the image collection frame rate of the imaging assembly.
Preferably, the motion state monitoring module is a three-axis accelerometer.
In order to monitor the motion state of the mirror body in real time, the X axis of the three-axis accelerometer is coincident with the axis of the mirror body.
The invention has the beneficial effects that: the endoscope system can realize real-time monitoring of the motion state of the endoscope body, and can change the light output quantity of the endoscope light source more quickly so as to keep the stability of the image brightness.
Drawings
Fig. 1 is a flowchart of a method for controlling the amount of light output from an endoscope according to an embodiment of the present invention.
FIG. 2 is a schematic view of the structure of the scope of the endoscope system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a frame of a light output control module of a light source in an endoscope system according to an embodiment of the present invention.
FIG. 4 is a control flow diagram of an endoscopic system in accordance with an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, a flowchart of a method for controlling an amount of light emitted from an endoscope, the method comprising:
s1, acquiring the light output quantity change coefficient of the mirror body in different motion states.
And S2, comparing the current image acquired by the mirror body with a preset image to obtain the initial light output amount variation.
Specifically, the brightness of the current image acquired by the mirror body is calculated, the brightness of the current image is compared with the brightness of a preset image to obtain a brightness difference value, and the initial light output quantity variation is obtained according to the brightness difference value.
S3, acquiring the movement state of the mirror body, and applying the light output amount variation coefficient in the movement state to the initial light output amount variation to obtain the final light output amount variation.
And S4, making the light source output the final light output quantity according to the final light output quantity variation.
The moving state of the mirror body comprises a mirror entering state, a mirror holding state, a non-zero state and a mirror withdrawing state.
When the acquired mirror body motion state information is in a mirror entering state or a non-zero state, the light output quantity change coefficient acts on the initial light output quantity change quantity, and then the amplitude of light output quantity reduction is restrained.
When the acquired mirror body motion state information is in a mirror holding state, the light output quantity variation coefficient acts on the initial light output quantity variation, and then the light output quantity variation is kept in a constant proportional relation with the image brightness.
When the acquired lens motion state information is in a lens withdrawing state, the light output quantity change coefficient acts on the initial light output quantity change quantity, and then the light output quantity increase amplitude is enlarged.
As shown in fig. 2 and fig. 3, the method for controlling the light output amount of the endoscope can be implemented by an endoscope system, which includes a scope 10, an imaging module 20 is disposed at a head end of the scope 10, a light source is disposed at a rear end of the scope 10, a motion state monitoring module 30 is disposed on the imaging module 20, a light source light output amount control module 40 is disposed on the scope 10, and the light source light output amount control module 40 is electrically connected to the motion state monitoring module 30 and is used for controlling the light output amount of the light source.
The motion state monitoring module 30 is a component capable of monitoring the motion state of the endoscope, in this embodiment, the motion state monitoring module 30 is a three-axis accelerometer, and an X-axis of the three-axis accelerometer coincides with an axis of the endoscope 10.
The light source light output amount control module 40 includes:
an initial light-emitting amount obtaining unit 41, configured to compare the current image obtained by the mirror body 10 with a preset image to obtain an initial light-emitting amount variation.
A final light output amount obtaining unit 42, configured to collect information of the motion state monitoring module 30 to obtain a motion state of the mirror body 10, and apply a light output amount variation coefficient in the motion state to the initial light output amount variation to obtain a final light output amount variation;
and a light output unit 43 for causing the light source to output a final light output amount according to the final light output amount variation.
As shown in fig. 4, on one hand, the light source light output amount control module calculates the brightness of the current image obtained by the mirror body, and compares the brightness of the current image with the preset image brightness to obtain a brightness difference value, so as to obtain the variation of the initial light output amount according to the brightness difference value. Meanwhile, the light source light output quantity control module collects parameters of the accelerometer at a rate which is several times of the image collection frame rate of the imaging assembly, carries out motion trend fitting on three-axis parameters of the accelerometer to obtain the motion state of the mirror body, obtains a light output quantity change coefficient according to different motion states, then acts the light output quantity change coefficient on the initial light output quantity change quantity to obtain a final light output quantity change quantity, and further obtains final light output quantities in different states.
In the lens entering state, the lens body head end approaches the cavity wall, the image brightness is accelerated to brighten, the light source light output quantity control module generates a light output quantity change coefficient in the lens entering state according to an acceleration parameter in the lens entering state, the light output quantity change coefficient in the lens entering state is applied to an initial light output quantity change amount in the lens entering state, and the light output quantity reduction amplitude is restrained so as to ensure that the image brightness cannot suddenly darken.
The head end of the lens body needs to be observed for a long time in the state of holding the lens, and the brightness of the image is not changed greatly. The light source light output quantity control module generates an initial light output quantity change coefficient in the mirror holding state according to the acceleration parameter in the mirror holding state, applies the light output quantity change coefficient in the mirror holding state to the light output quantity change amount in the mirror holding state, keeps the constant proportional relation of the light output quantity change amount along with the image brightness, and maintains stable image brightness.
The lens body head end can approach the cavity wall under the condition of angle beating in the non-zero state, the light source light output quantity control module generates a light output quantity change coefficient in the non-zero state according to an acceleration parameter in the non-zero state, the light output quantity change coefficient in the non-zero state is applied to an initial light output quantity variable quantity in the non-zero state, and the amplitude of light output quantity reduction is restrained so as to ensure that the image brightness cannot become dark suddenly.
In the mirror withdrawing state, the head end of the mirror body can be accelerated to be far away from the wall of the cavity, the light source light output quantity control module generates a light output quantity change coefficient in the mirror withdrawing state according to an acceleration parameter in the mirror withdrawing state, the light output quantity change coefficient in the mirror withdrawing state is applied to an initial light output quantity change amount in the mirror withdrawing state, the amplitude of light output quantity increase is enlarged, and therefore the fact that the brightness of an image cannot suddenly brighten is guaranteed.
The movement state of the mirror body is monitored in real time through the accelerometer, the movement state measured by the accelerometer is analyzed, the light output quantity change coefficient under different movement states is obtained, the light output quantity is accurately controlled, and the problem of image brightness flickering caused by rapid movement of the mirror body is solved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A method for controlling the light output of an endoscope is characterized by comprising the following steps:
1) acquiring light output quantity change coefficients of the mirror body in different motion states;
2) comparing a current image acquired by the mirror body with a preset image to obtain an initial light output amount variable quantity;
3) obtaining the movement state of the lens body, and respectively obtaining the final light output amount variation according to the movement state, wherein,
when the movement state of the mirror body is in a mirror entering state or a non-zero state, the light output quantity change coefficient acts on the initial light output quantity change quantity, and then the amplitude of light output quantity reduction is restrained;
when the movement state of the mirror body is the mirror holding state, after the light output quantity variation coefficient acts on the initial light output quantity variation, the constant proportional relation between the light output quantity variation and the image brightness is kept;
when the moving state of the mirror body is a mirror withdrawing state, the light output quantity change coefficient acts on the light output quantity change quantity, and then the light output quantity increase amplitude is enlarged;
4) and the light source outputs the final light output quantity according to the final light output quantity variation.
2. The method for controlling the amount of light output from an endoscope according to claim 1, comprising: in the step 2), the brightness of the current image acquired by the mirror body is calculated, the brightness of the current image is compared with the brightness of a preset image to obtain a brightness difference value, and the brightness difference value is used for obtaining the initial light output quantity variation.
3. An endoscope system for performing the method of controlling the quantity of light output from an endoscope according to claim 1, comprising a scope body (10), wherein an imaging component (20) is disposed at the head end of the scope body (10), and a light source is disposed at the rear end of the scope body (10), characterized in that: the imaging component (20) is provided with a motion state monitoring module (30), the mirror body (10) is provided with a light source light output quantity control module (40), and the light source light output quantity control module (40) is electrically connected with the motion state monitoring module (30) and used for controlling the light output quantity of the light source.
4. An endoscope system according to claim 3 and wherein said light source output light control module (40) comprises:
an initial light output quantity obtaining unit (41) for comparing the current image obtained by the mirror body (10) with a preset image to obtain an initial light output quantity variation;
the final light output quantity acquisition unit (42) is used for acquiring the information of the motion state monitoring module (30) so as to acquire the motion state of the mirror body (10), and applying the light output quantity change coefficient in the motion state to the initial light output quantity change quantity so as to obtain the final light output quantity change quantity;
and a light output unit (43) for making the light source output the final light output according to the final light output variable quantity.
5. The endoscopic system of claim 4 wherein: the rate of the final light output quantity acquisition unit (42) for acquiring the information of the motion state monitoring module (30) is multiple times of the image acquisition frame rate of the imaging assembly (20).
6. The endoscopic system of claim 3 wherein: the motion state monitoring module (30) is a three-axis accelerometer.
7. The endoscopic system of claim 6 wherein: the X axis of the three-axis accelerometer is coincident with the axis of the mirror body (10).
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| CN202210961075.0A CN115299859A (en) | 2021-03-03 | 2021-03-03 | Endoscope system |
| CN202110232790.6A CN112998633B (en) | 2021-03-03 | 2021-03-03 | Control method for light output of endoscope and endoscope system |
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| CN202110232790.6A CN112998633B (en) | 2021-03-03 | 2021-03-03 | Control method for light output of endoscope and endoscope system |
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| JP2767105B2 (en) * | 1987-12-26 | 1998-06-18 | 旭光学工業株式会社 | Endoscope light source device |
| JP2710336B2 (en) * | 1988-04-14 | 1998-02-10 | オリンパス光学工業株式会社 | Light source device for endoscope |
| JP3128068B2 (en) * | 1988-10-27 | 2001-01-29 | オリンパス光学工業株式会社 | Signal processing device |
| US6425858B1 (en) * | 1999-03-19 | 2002-07-30 | Fuji Photo Optical Co., Ltd. | Electronic endoscope apparatus having magnification changing function |
| JP2001154085A (en) * | 1999-11-25 | 2001-06-08 | Olympus Optical Co Ltd | Endoscopic device |
| EP1752083A4 (en) * | 2004-05-24 | 2013-10-16 | Olympus Corp | Light source device for endoscope |
| JP4873949B2 (en) * | 2005-12-26 | 2012-02-08 | Ｈｏｙａ株式会社 | Electronic endoscope device |
| JP5269532B2 (en) * | 2008-09-22 | 2013-08-21 | オリンパスメディカルシステムズ株式会社 | Capsule medical device |
| CN103764061B (en) * | 2011-06-27 | 2017-03-08 | 内布拉斯加大学评议会 | Tracing system and Computer Aided Surgery method that instrument carries |
| CN102641109B (en) * | 2011-07-08 | 2014-08-27 | 上海交通大学 | Method for intelligently adjusting endoscope illuminance |
| JP6153414B2 (en) * | 2013-08-06 | 2017-06-28 | オリンパス株式会社 | Insertion system and method for adjusting shape detection characteristics of shape sensor |
| JP2016540417A (en) * | 2013-10-18 | 2016-12-22 | ザ ライト・コ インコーポレイテッド | Image capture control method and apparatus |
| CN103690137B (en) * | 2014-01-07 | 2015-05-20 | 深圳开立生物医疗科技股份有限公司 | Endoscope light source brightness automatic adjusting method and device |
| US20150244949A1 (en) * | 2014-02-21 | 2015-08-27 | Rajiv Laroia | Illumination methods and apparatus |
| CN103860129B (en) * | 2014-03-19 | 2015-01-07 | 深圳市开立科技有限公司 | Method and device for automatically adjusting endoscope light source brightness |
| CN107105982B (en) * | 2015-10-30 | 2019-05-21 | 奥林巴斯株式会社 | Control method for the control device of endoscopic system, endoscopic system and endoscopic system |
| CN107065170B (en) * | 2017-05-12 | 2019-07-05 | 重庆金山医疗器械有限公司 | Fujinon electronic video endoscope light source optical path control system |
| CN108650473B (en) * | 2018-05-28 | 2020-07-28 | 重庆金山医疗器械有限公司 | Method and system for automatically adjusting brightness of endoscope L ED lamp |
| JP6967493B2 (en) * | 2018-08-16 | 2021-11-17 | 富士フイルム株式会社 | Endoscope control device, endoscope device, endoscope state identification method, endoscope state identification program |
| CN110233671A (en) * | 2019-07-25 | 2019-09-13 | 重庆金山医疗技术研究院有限公司 | Optical communication structure and electronic endoscope system |
| CN111000522A (en) * | 2019-12-18 | 2020-04-14 | 重庆金山医疗技术研究院有限公司 | Endoscope and shooting method thereof |
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Effective date of registration: 20210824 Address after: 401120 1-1, 2-1, 3-1, building 5, No. 18, Cuiping Lane 2, Huixing street, Yubei District, Chongqing Applicant after: Chongqing Jinshan Medical Technology Research Institute Co.,Ltd. Address before: 401120 1 office buildings, Jinshan International Industrial City, 18 of Nei sang Road, Hui Xing street, Yubei District, Chongqing. Applicant before: CHONGQING JINSHAN MEDICAL APPLIANCE Co.,Ltd. |
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