CN102499617A - Endoscope brightness automatic regulation device and regulation control method thereof - Google Patents
Endoscope brightness automatic regulation device and regulation control method thereof Download PDFInfo
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- CN102499617A CN102499617A CN2011103204219A CN201110320421A CN102499617A CN 102499617 A CN102499617 A CN 102499617A CN 2011103204219 A CN2011103204219 A CN 2011103204219A CN 201110320421 A CN201110320421 A CN 201110320421A CN 102499617 A CN102499617 A CN 102499617A
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Abstract
The invention relates to an endoscope brightness automatic regulation device, which comprises an image processing module, a light path baffle plate and a baffle plate driving motor, wherein the input end of the image processing module is connected with the output end of an endoscope, the output end of the image processing module is connected with the input end of the baffle plate driving motor, the light path baffle plate is arranged in the light path, and a bearing of the baffle plate driving motor is connected with a transmission shaft of the light path baffle plate and drives a baffle plate to move in the light path for regulating the brightness of cold light sources received by a light source incidence opening of the endoscope. The invention also relates to a method for realizing the automatic regulation control of the endoscope brightness on the basis of the device. When the endoscope brightness automatic regulation device and the regulation control method are adopted, the baffle plate driving motor is controlled to regulate the baffle plate on the basis of analysis of the endoscope output image brightness, so the cold light source brightness received by the endoscope is changed, and the optimum imaging effect of the endoscope is ensured. The endoscope brightness automatic regulation device has a simple structure, the regulation control method of the endoscope brightness automatic regulation device is simple and convenient, and the application range is wider.
Description
Technical field
The present invention relates to the endoscopic technique field, particularly the endoscope control device technical field specifically is meant a kind of endoscope brightness self-checking device and adjustment control method thereof.
Background technology
Endoscope is a kind of medical apparatus and instruments commonly used, is widely used in the various Minimally Invasive Surgerys.Common endoscope is made up of cephalic par, bending section, main flexible tube, operating portion, micro photo electric bonder (can comprise CCD and CMOS, these all are suitable for), image output interface and leaded light plug.Wherein cephalic par comprises miniature protruding object lens, image transmission optical fibre top, passes the light optical fiber connector, and miniature protruding object lens are arranged at the front end of cephalic par, are used to receive the reflected light from body surface; Bending section is the stage casing mechanical connecting element of cephalic par and main flexible tube, and the rear end of cephalic par is connected with the front end of bending section, and the rear end of bending section is connected with the front end of main flexible tube, and the image transmission optical fibre rear end in the main flexible tube is connected with the input port of micro photo electric bonder; The micro photo electric bonder is miniature charge-coupled image sensor, and the output port of micro photo electric bonder is connected with the image output interface; Biography light optical fiber rear end in the main flexible tube is connected with leaded light plug optical output port.Leaded light plug light input end mouth is sent into the cold light source light beam and is passed light optical fiber; Through passing light optical fiber the cold light source beam Propagation is observed object or visual field to the cephalic par illumination; The reflected light that is observed object images on the end face of image transmission optical fibre after getting miniature protruding object lens and converge through cephalic par, passes through image transmission optical fibre and spreads out of; After amplifying through miniature protruding eyepiece again; Project on the target surface of photoelectrical coupler through opto-electronic conversion, be transformed into the image pixel sequence signal of telecommunication to optical signal, picture signal is transferred to signal processor through image pick-up card through the image output interface.Main flexible tube also comprises an adjusting endoscope head end and spies on the fine steel wire of angle except parcel image transmission optical fibre and biography light optical fiber, and the front end of fine steel wire and the front end robot of cephalic par are fastening, and the rear end of fine steel wire is connected with the adjusting knob of operating portion.This type of endoscope can control through operating portion easily, produces imaging effect preferably.
But also there is significant disadvantages in this type of endoscope, crosses when strong when the light that sends of cold light source, will cause to be observed object or the visual field is bright excessively, and the endoscopic imaging effect is relatively poor, and vice versa.Therefore, need in operation process, the light intensity of cold light source be regulated, to obtain optimal imaging effect.But endoscope's leaded light plug light input end mouth gets into the light intensity of the cold light source that passes light optical fiber and can't regulate at the operating portion of endoscope, and through regulating comparatively trouble in the cold light source place, has increased the complexity of the operation that utilizes endoscope.So need device and method that a kind of convenience regulates endoscope's brightness exactly in the prior art badly to improve the endoscopic imaging effect, make its use more convenient.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art; Provide a kind of can be based on the imaging effect of endoscope, the light intensity that cold light source is got into endoscope automatically adjusts, thus it is bright or dark excessively to avoid endoscope's brightness to cross; Effectively guarantee the imaging effect of endoscope; And simple in structure, application mode is easy, and the scope of application is endoscope's brightness self-checking device and adjustment control method thereof comparatively widely.
In order to realize above-mentioned purpose, endoscope of the present invention brightness self-checking device has following formation:
The light source entrance port of described endoscope is communicated with a cold light source through a light path; Described endoscope brightness self-checking device comprises image processing module, light path blocking plate and barrier driving motor; The picture signal input of described image processing module connects the image signal output end of described endoscope; The control signal output ends of described image processing module connects the signal input part of described barrier driving motor; Described light path blocking plate is arranged in the described light path; The bearing of described barrier driving motor connects the power transmission shaft of described light path blocking plate, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
In this endoscope's brightness self-checking device; Described image processing module comprises image acquisition units, information process unit and control unit; The input of described image acquisition units connects the image signal output end of described endoscope; The outfan of described image acquisition units connects the input of described information process unit; The outfan of described information process unit connects the input of described control unit, and the control signal output ends of described control unit connects the signal input part of described barrier driving motor.
In this endoscope's brightness self-checking device; Described information process unit comprises that the colour cast syndrome unit, gamma correction subelement and the control instruction that are linked in sequence generate subelement; The unitary input of described colour cast syndrome connects the outfan of described image acquisition units, and the outfan of described control instruction generation subelement connects the input of described control unit.
The present invention also provides a kind of and realizes the method that endoscope's brightness is regulated control automatically based on described device, and this method may further comprise the steps:
(1) described image processing module obtains picture signal from described endoscope;
(2) described image processing module is analyzed the brightness of endoscope according to described picture signal, and according to analysis result to described barrier driving motor output motor control signal;
(3) described barrier driving motor changes its running status according to described motor control signal, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
This realization endoscope brightness is regulated in the method for control automatically; Described image processing module comprises image acquisition units, information process unit and control unit; The input of described image acquisition units connects the image signal output end of described endoscope; The outfan of described image acquisition units connects the input of described information process unit; The outfan of described information process unit connects the input of described control unit; The control signal output ends of described control unit connects the signal input part of described barrier driving motor, described image processing module analyze the brightness of endoscope according to described picture signal and according to analysis result to described barrier driving motor output motor control signal, may further comprise the steps:
(21) described image acquisition units obtains picture signal from described endoscope, and described picture signal is sent to described information process unit;
(22) described information process unit is handled the image that is obtained, and generates the Electric Machine Control instruction according to result;
(23) described information process unit is sent to described control unit with described Electric Machine Control instruction;
(24) described control unit instructs to described barrier driving motor output motor control signal according to described Electric Machine Control.
This realization endoscope brightness is regulated in the method for control automatically; Described information process unit comprises that the colour cast syndrome unit, gamma correction subelement and the control instruction that are linked in sequence generate subelement; The unitary input of described colour cast syndrome connects the outfan of described image acquisition units; The outfan of described control instruction generation subelement connects the input of described control unit; Described information process unit is handled the image that is obtained and is generated the Electric Machine Control instruction according to result, may further comprise the steps:
(31) described colour cast syndrome unit carries out colour cast to described image and proofreaies and correct, and the image after colour cast proofreaied and correct is sent to described gamma correction subelement;
(32) described gamma correction subelement carries out gamma correction to described image, and the image behind the gamma correction is sent to described control instruction generation subelement;
(33) described control instruction generation subelement judges whether the brightness of the image that is obtained surpasses preset value;
(34) described control instruction generates subelement and generates the Electric Machine Control instruction according to judged result.
This realization endoscope brightness is regulated in the method for control automatically, and described control instruction generates subelement and judges that whether the brightness of the image that is obtained surpasses preset value, may further comprise the steps:
(41) described control instruction generates the subelement subregion and extracts image information;
(42) described control instruction generates subelement and obtains the key area marginal information;
(43) described control instruction generates subelement and extracts the secondary average of image information and key area marginal information and the brightness estimated value that standard deviation obtains this image according to the subregion that is obtained;
(44) described control instruction generation subelement compares described image light brightness estimated value and preset value, whether surpasses preset value with the brightness of judging the image that is obtained.
Adopted endoscope's brightness self-checking device of this invention; It comprises image processing module, light path blocking plate and barrier driving motor; The picture signal input of described image processing module connects the image signal output end of described endoscope; The control signal output ends of described image processing module connects the signal input part of described barrier driving motor; Described light path blocking plate is arranged in the described light path, and the bearing of described barrier driving motor connects the power transmission shaft of described light path blocking plate, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.Thereby can judge the brightness of endoscope based on the image of analyzing endoscope's output, and,, guarantee that there is best imaging effect in endoscope to change the cold light source brightness that endoscope receives according to judged result control barrier driving motor controllable register.And endoscope of the present invention brightness self-checking device and adjustment control method thereof are simple in structure, and application mode is easy, and the scope of application is comparatively extensive.
Description of drawings
Fig. 1 is the structural representation of endoscope of the present invention brightness self-checking device.
Fig. 2 is the flow chart of the automatic adjustment control method of endoscope's brightness of the present invention.
The specific embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
In one embodiment, the light source entrance port of endoscope is communicated with a cold light source through a light path.Endoscope of the present invention brightness self-checking device; As shown in Figure 1; Comprise image processing module, light path blocking plate and barrier driving motor; The picture signal input of described image processing module connects the image signal output end of described endoscope, and the control signal output ends of described image processing module connects the signal input part of described barrier driving motor, and described light path blocking plate is arranged in the described light path; The bearing of described barrier driving motor connects the power transmission shaft of described light path blocking plate, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
Adopt the self-checking device of this embodiment to realize the automatic adjustment control method of endoscope's brightness, as shown in Figure 2, may further comprise the steps:
(1) described image processing module obtains picture signal from described endoscope;
(2) described image processing module is analyzed the brightness of endoscope according to described picture signal, and according to analysis result to described barrier driving motor output motor control signal;
(3) described barrier driving motor changes its running status according to described motor control signal, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
In a kind of more preferably embodiment; As shown in Figure 1; Described image processing module comprises image acquisition units, information process unit and control unit; The input of described image acquisition units connects the image signal output end of described endoscope; The outfan of described image acquisition units connects the input of described information process unit, and the outfan of described information process unit connects the input of described control unit, and the control signal output ends of described control unit connects the signal input part of described barrier driving motor.
Realize in the automatic adjustment control method of endoscope's brightness at the self-checking device that adopts this embodiment; Described image processing module analyze the brightness of endoscope according to described picture signal and according to analysis result to described barrier driving motor output motor control signal, may further comprise the steps:
(21) described image acquisition units obtains picture signal from described endoscope, and described picture signal is sent to described information process unit;
(22) described information process unit is handled the image that is obtained, and generates the Electric Machine Control instruction according to result;
(23) described information process unit is sent to described control unit with described Electric Machine Control instruction;
(24) described control unit instructs to described barrier driving motor output motor control signal according to described Electric Machine Control.
In further preferred embodiment; Described information process unit comprises that the colour cast syndrome unit, gamma correction subelement and the control instruction that are linked in sequence generate subelement; The unitary input of described colour cast syndrome connects the outfan of described image acquisition units, and the outfan of described control instruction generation subelement connects the input of described control unit.
Realize in the automatic adjustment control method of endoscope's brightness that at the self-checking device that adopts this embodiment described information process unit is handled the image that is obtained and generated the Electric Machine Control instruction according to result, may further comprise the steps:
(31) described colour cast syndrome unit carries out colour cast to described image and proofreaies and correct, and the image after colour cast proofreaied and correct is sent to described gamma correction subelement;
(32) described gamma correction subelement carries out gamma correction to described image, and the image behind the gamma correction is sent to described control instruction generation subelement;
(33) described control instruction generation subelement judges whether the brightness of the image that is obtained surpasses preset value;
(34) described control instruction generates subelement and generates the Electric Machine Control instruction according to judged result.
In a kind of preferred embodiment, this realization endoscope brightness is regulated the control instruction described in the method for control automatically and is generated subelement and judge that whether the brightness of the image that is obtained surpasses preset value, specifically may further comprise the steps:
(41) described control instruction generates the subelement subregion and extracts image information;
(42) described control instruction generates subelement and obtains the key area marginal information;
(43) described control instruction generates subelement and extracts the secondary average of image information and key area marginal information and the brightness estimated value that standard deviation obtains this image according to the subregion that is obtained;
(44) described control instruction generation subelement compares described image light brightness estimated value and preset value, whether surpasses preset value with the brightness of judging the image that is obtained.
In an application of the invention, the self-checking device of endoscope of the present invention brightness comprises: endoscope, image pick-up card, signal processor, controller, motor, baffle plate and cold light source.Wherein, The image output interface of endoscope is connected with the input interface of image pick-up card; The output interface of image pick-up card is connected with the input interface of signal processor; The output interface of signal processor is connected with the input interface of controller, and the output interface of controller is connected with the control signal input interface of motor, and the bearing of motor is connected with the turning cylinder of baffle plate; The flapper arm of baffle plate can cover the part light path between cold light source and the endoscope, and motor, baffle plate are the transmission gear for electric motor that is made up of mechanical connection.The light that cold light source sends is injected endoscope, and endoscope is transformed into picture signal with optical signal, and sends picture signal to signal processor through image pick-up card through its image output interface; After signal processor receives the picture signal that image pick-up card transmits and handles, the image of real-time collection carried out colour cast is proofreaied and correct, brightness of image is proofreaied and correct, and motor is rotated the output control instruction send controller to; Controller is according to the signal processor control instruction that receives; Change rotation direction, speed and the angle of motor; The light intensity that the feasible baffle plate of being controlled is covered in light path produces corresponding the variation, and endoscope connects the light intensity that receives from cold light source, makes brightness obtain optimization and regulates.
In the self-checking device of this endoscope's brightness, said signal processor comprises: input interface, signal processing module and output interface; Wherein: the input interface input port receives the data image signal from image pick-up card output, and the input interface output port is connected with the input port of signal processing module; The output port of signal processing module is connected with the input port of output interface; The output port of output interface is connected with the input interface of controller.And said signal processing module is handled the picture signal that receives; Realize the continuous acquisition image through circulation; The extraction image processing data that rezones obtains ROI (region of interest) marginal information then, and draws the assessed value of entire image light intensity through the method for asking secondary average, standard deviation; Through the size of movement images assessed value and setting value, the output control instruction of regulating the motor rotation is exported to controller.
Adopted endoscope's brightness self-checking device of this invention; It comprises image processing module, light path blocking plate and barrier driving motor; The picture signal input of described image processing module connects the image signal output end of described endoscope; The control signal output ends of described image processing module connects the signal input part of described barrier driving motor; Described light path blocking plate is arranged in the described light path, and the bearing of described barrier driving motor connects the power transmission shaft of described light path blocking plate, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.Thereby can judge the brightness of endoscope based on the image of analyzing endoscope's output, and,, guarantee that there is best imaging effect in endoscope to change the cold light source brightness that endoscope receives according to judged result control barrier driving motor controllable register.And endoscope of the present invention brightness self-checking device and adjustment control method thereof are simple in structure, and application mode is easy, and the scope of application is comparatively extensive.
In this description, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (7)
1. endoscope's brightness self-checking device; The light source entrance port of described endoscope is communicated with a cold light source through a light path; It is characterized in that; Described endoscope brightness self-checking device comprises image processing module, light path blocking plate and barrier driving motor; The picture signal input of described image processing module connects the image signal output end of described endoscope, and the control signal output ends of described image processing module connects the signal input part of described barrier driving motor, and described light path blocking plate is arranged in the described light path; The bearing of described barrier driving motor connects the power transmission shaft of described light path blocking plate, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
2. endoscope according to claim 1 brightness self-checking device; It is characterized in that; Described image processing module comprises image acquisition units, information process unit and control unit; The input of described image acquisition units connects the image signal output end of described endoscope; The outfan of described image acquisition units connects the input of described information process unit, and the outfan of described information process unit connects the input of described control unit, and the control signal output ends of described control unit connects the signal input part of described barrier driving motor.
3. endoscope according to claim 2 brightness self-checking device; It is characterized in that; Described information process unit comprises that the colour cast syndrome unit, gamma correction subelement and the control instruction that are linked in sequence generate subelement; The unitary input of described colour cast syndrome connects the outfan of described image acquisition units, and the outfan of described control instruction generation subelement connects the input of described control unit.
4. realize the method that endoscope's brightness is regulated control automatically based on the described device of claim 1 for one kind, it is characterized in that described method may further comprise the steps:
(1) described image processing module obtains picture signal from described endoscope;
(2) described image processing module is analyzed the brightness of endoscope according to described picture signal, and according to analysis result to described barrier driving motor output motor control signal;
(3) described barrier driving motor changes its running status according to described motor control signal, and drives the mobile cold light source brightness that receives with the light source entrance port of regulating described endoscope in light path of described baffle plate.
5. the method that realizes that endoscope's brightness is regulated control automatically according to claim 4; It is characterized in that; Described image processing module comprises image acquisition units, information process unit and control unit; The input of described image acquisition units connects the image signal output end of described endoscope; The outfan of described image acquisition units connects the input of described information process unit, and the outfan of described information process unit connects the input of described control unit, and the control signal output ends of described control unit connects the signal input part of described barrier driving motor; Described image processing module analyze the brightness of endoscope according to described picture signal and according to analysis result to described barrier driving motor output motor control signal, may further comprise the steps:
(21) described image acquisition units obtains picture signal from described endoscope, and described picture signal is sent to described information process unit;
(22) described information process unit is handled the image that is obtained, and generates the Electric Machine Control instruction according to result;
(23) described information process unit is sent to described control unit with described Electric Machine Control instruction;
(24) described control unit instructs to described barrier driving motor output motor control signal according to described Electric Machine Control.
6. the method that realizes that endoscope's brightness is regulated control automatically according to claim 5; It is characterized in that; Described information process unit comprises that the colour cast syndrome unit, gamma correction subelement and the control instruction that are linked in sequence generate subelement; The unitary input of described colour cast syndrome connects the outfan of described image acquisition units; The outfan of described control instruction generation subelement connects the input of described control unit, and described information process unit is handled the image that is obtained and generated the Electric Machine Control instruction according to result, may further comprise the steps:
(31) described colour cast syndrome unit carries out colour cast to described image and proofreaies and correct, and the image after colour cast proofreaied and correct is sent to described gamma correction subelement;
(32) described gamma correction subelement carries out gamma correction to described image, and the image behind the gamma correction is sent to described control instruction generation subelement;
(33) described control instruction generation subelement judges whether the brightness of the image that is obtained surpasses preset value;
(34) described control instruction generates subelement and generates the Electric Machine Control instruction according to judged result.
7. the method that realizes that endoscope's brightness is regulated control automatically according to claim 6 is characterized in that, described control instruction generates subelement and judges that whether the brightness of the image that is obtained surpasses preset value, may further comprise the steps:
(41) described control instruction generates the subelement subregion and extracts image information;
(42) described control instruction generates subelement and obtains the key area marginal information;
(43) described control instruction generates subelement and extracts the secondary average of image information and key area marginal information and the brightness estimated value that standard deviation obtains this image according to the subregion that is obtained;
(44) described control instruction generation subelement compares described image light brightness estimated value and preset value, whether surpasses preset value with the brightness of judging the image that is obtained.
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| CN2011103204219A CN102499617A (en) | 2011-10-20 | 2011-10-20 | Endoscope brightness automatic regulation device and regulation control method thereof |
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| CN106419807A (en) * | 2016-10-30 | 2017-02-22 | 苏州市克拉思科文化传播有限公司 | Intelligent medical endoscope |
| CN108289596A (en) * | 2015-09-30 | 2018-07-17 | 通用医疗公司 | System and method for the optical imaging apparatus actively controlled |
| US11147503B2 (en) | 2015-09-30 | 2021-10-19 | The General Hospital Corporation | Systems and methods for an actively controlled optical imaging device |
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Application publication date: 20120620 |