CN107913052A - A kind of endoscope and its image processing method of detectable Minimally Invasive Surgery blutpunkte - Google Patents
A kind of endoscope and its image processing method of detectable Minimally Invasive Surgery blutpunkte Download PDFInfo
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- CN107913052A CN107913052A CN201711428026.6A CN201711428026A CN107913052A CN 107913052 A CN107913052 A CN 107913052A CN 201711428026 A CN201711428026 A CN 201711428026A CN 107913052 A CN107913052 A CN 107913052A
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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
- A61B1/00002—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
-
- 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
Abstract
The present invention relates to a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte, including metal cannula optic probe module, light input module, narrow linewidth light source module, high frame per second CCD/COMS modules, signal processing and drive module, display module, light input module is provided with metal cannula optic probe Modular surface, light input module is connected by fiber optic bundle with narrow linewidth light source module, metal cannula probe module is connected by optics adapter with high frame per second CCD/COMS modules, high frame per second CCD/COMS modules are connected by connection cables with signal processing with drive module, signal processing is connected with drive module with display module.The present invention is using narrow linewidth light source irradiation imaging region, the light image signal that metal cannula optic probe exports is converted into electrical picture signal using high frame per second CCD/COMS modules, DFT transform is carried out to the electrical picture signal by signal processing and drive module, the fast area image spectrum component of blood flowing speed is high, by being coloured to image by spectrum distribution, the blutpunkte band of position is embodied.
Description
Technical field
The present invention relates to minimally invasive medical instrument field, more particularly to a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte
And its image processing method.
Background technology
Medical endoscope is long-standing, it even can trace back to B.C. 460~375 years earliest, at that time by ancient Greek
A kind of rectum diagnostor has been invented by the medical team of name doctor Hippocrates leaders, today with the endoscope used in our very
It is similar.It is developed so far, the minimal invasive techniques using endoscopic system as core have been widely used for department of general surgery, gynemetrics, outside chest
The multiple fields such as section, almost all of traditional surgery can be completed by endoscope micro-wound.
The defect that currently employed endoscopic system still remained during Minimally Invasive Surgery is：When endoscope enters master
When body body cavity carries out related surgical operation, in surgical procedure, surgical procedure may produce the cell tissue of human body destruction, or
Person destroys important institutional framework, forms wound, produces operative hemorrhage.Since existing endoscopic system uses broadband visible ray
Imaging region is irradiated, in-vivo tissue organ surface can only be imaged, and it is imaged that output frame rate is low, can not be to quickly flowing
Blood is identified, it is difficult to correctly find blutpunkte, therefore can not carry out hemostasis processing to the wound of patient in time.Lighter
Being smoothed out for operation can be influenced, it is serious or even can constitute a threat to the life of patient.
The solution to this problem is mainly with the career experience of the doctor in charge and the subjective feeling of patient now
To judge, very big parameter thus is brought to treatment, because the assurance to state of an illness inaccuracy, is brought to operation very big
It is dangerous.Therefore, when carrying out Minimally Invasive Surgery using endoscopic system, how to identify exactly blutpunkte at patient's wound with
And it whether there is the problem of blutpunkte is current urgent need to resolve after the completion of operation.
The content of the invention
Present invention aims at a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte is provided, irradiated using narrow linewidth light source
Imaging region, electricity is converted to using high frame per second CCD/COMS modules by the light image signal that metal cannula optic probe module exports
Picture signal, signal processing carry out spectral transformation processing to each pixel of electrical picture signal with drive module, obtain image
Frequency spectrum profile, and coloring treatment is carried out by frequency height to the frequency spectrum profile of image, image procossing is completed, embodies blutpunkte
The band of position.
To achieve these goals, the present invention provides following technical scheme：
A kind of endoscope of detectable Minimally Invasive Surgery blutpunkte of present invention offer, including metal cannula optic probe module,
Light input module, narrow linewidth light source module, high frame per second CCD/COMS modules, signal processing and drive module, display module, metal
Light input module is provided with intubation optic probe Modular surface, light input module is connected by fiber optic bundle and narrow linewidth light source module
Connect, metal cannula optic probe module is connected by optics adapter with high frame per second CCD/COMS modules, high frame per second CCD/COMS
Module is connected by connection cables with signal processing with drive module, and signal processing is connected with drive module with display module；
Wherein, metal cannula optic probe module built-in optical lens combination imaging output optical image signal, high frame per second
Optical image signal is converted to electrical picture signal by CCD/COMS modules, and signal processing is with drive module to electrical image
Each pixel of signal carries out spectral transformation processing, obtains the frequency spectrum profile of image, to frequency spectrum profile by frequency height into
Row coloring treatment, completes image procossing, exports to display module and show.
Before endoscopic imaging shows image, image is handled, a kind of endoscopic imaging is provided for this
Processing method, specific image processing step are as follows：
101st, launch flashlight using the narrow linewidth light source module of endoscope, metal cannula light is entered by light input module
Learn probe module, and uniform irradiation imaging position；
102nd, imaging position is imaged based on endoscope metal cannula optic probe mould optical lens system in the block
Obtain optical imagery；
103rd, the optical picture for being detected metal cannula optic probe module based on the high frame per second CCD/COMS modules of endoscope
As signal is converted to electrical picture signal, wherein, image more than high frame per second CCD/COMS modules exportable 1,000 frame per second；
104th, each pixel of electrical picture signal is carried out at spectral transformation based on endoscope signal processing and drive module
Reason, obtains the frequency spectrum profile of image, and image output processing module then carries out coloring treatment to frequency spectrum profile by frequency height,
Complete image procossing.
Compared with prior art, the present invention has the following advantages：
A kind of endoscope of detectable Minimally Invasive Surgery blutpunkte of the present invention, irradiates imaging region using narrow linewidth light source,
Using the high frame per second CCD/COMS modules of exportable thousand frames images above per second by metal cannula optic probe module output light figure
As signal is converted to electrical picture signal, spectral transformation is carried out to each pixel of electrical picture signal by signal processing and drive module
Processing, obtains the frequency spectrum profile of image, carries out coloring treatment by frequency height to frequency spectrum profile, completes image procossing, body
The existing blutpunkte band of position, display speed is fast, precision is high, the doctor in charge is intuitive to see blutpunkte position, to disease
Feelings do further assurance.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the endoscope example structure schematic diagram of the present invention；
Fig. 2 is the endoscopic imaging Processing Example flow chart of the present invention.
Embodiment
The embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte, including metal cannula light
Learn probe module 1, light input module 2, narrow linewidth light source module 3, high frame per second CCD/COMS modules 5, signal processing and driving mould
Block 7, display module 8, are provided with light input module 2 on the surface of metal cannula optic probe module 1, light input module 2 passes through
Fiber optic bundle is connected with narrow linewidth light source module 3, and the rear end of metal cannula optic probe module 1 passes through optics adapter 4 and high frame
Rate CCD/COMS modules 5 connect, and high frame per second CCD/COMS modules 5 are connected by connection cables 6 and signal processing and drive module 7
Connect, signal processing is connected with drive module 7 with display module 8.
Metal cannula optic probe (metal cannula optic probe module) appearance is made of stainless steel.Can have in its front end
One inclined section, it is convenient that injected organism tissue situation is preferably observed in Minimally Invasive Surgery.Contain an optical lens inside it
Microscope group (optical imaging system), it is to carry out optical imagery to detected part that it, which is acted on,.Passage is left in its tube wall, for being laid with light
Fine beam.A light input end (light input module) is connected with its side, the purpose is to provide the light source of irradiation imaging region.
Narrow linewidth light source module provides the laser of narrowband output of certain power, its frequency is f.It is input to by light input end
Metal cannula optic probe module, is transmitted by the optical fiber of metal cannula optic probe module tube wall, and imaging region is carried out
Irradiation.When flashlight is irradiated to detected part, in-vivo tissue will produce random scatter to it.The portion being radiated in fluid flow blood
Light splitting, there is Motion Particles in blood because in, the frequency of its scattering light to beIt is radiated at static human body
Structural part light, it is still f that it, which scatters the frequency of light,；Because radiation source is narrow linewidth light source, there is extraordinary coherence, lead
These scattering light are caused to produce optical heterodyne effect, the frequency of its optical heterodyne signal isWherein, f
It is that the light velocity, ν in vacuum is blood flow velocity for light source frequency, c.The frequency response of the heterodyne signal size of blood flow velocity.Light
Heterodyne signal is imaged by photosurface of the metal cannula optic probe module in high frame per second CCD/COMS modules, and is converted to
Electrical picture signal.Wherein, the laser wavelength range harmless to biology is 600-1200nm, and the wavelength of the laser of the present embodiment is
780nm。
The optical image signal that metal cannula optic probe module exports is converted into electrograph by high frame per second CCD/COMS modules
As signal, display is handled picture signal and is exported to facilitate.Specifically, high frame per second CCD/COMS modules output figure per second
As more than 1,000 frames.The present embodiment uses the reason for high frame per second CCD/COMS modules to be to gather each pixel enough numbers
According to, exported with obtaining high-precision Spectrum Conversion, and CCD/COMS modules used in traditional endoscope usually only tens
Frame, then can not realize this function.
Signal processing includes CCD/CMOS drive circuit modules, image spectrum conversion module, image with drive module and exports
Processing module and power management module, CCD/CMOS drive circuit modules are connected with drive module with high frame per second CCD/COMS modules
Realize the conversion of photoelectric image signal, image spectrum conversion module carries out at Spectrum Conversion each pixel of electrical picture signal
Reason, obtains the frequency spectrum profile of image, and image output processing module then carries out coloring treatment to frequency spectrum profile by frequency height,
Obtain effect image and export effect image to display module.If in surgical procedure, because certain reason causes field of operation
Domain produces blutpunkte, since blutpunkte blood flowing speed is by apparently higher than the blood flow velocity at other positions, by public affairs above
Formula understands that blood flow velocity is faster so that it is bigger to scatter the optical frequency offset of light, is embodied as picture signal and is transformed into frequency domain sky
Between after frequency dramatically increase.As a result of the CCD/CMOS of high frame per second, output image per second is more than thousand frames, each pixel
Then possess thousands of a data, DFT transform is carried out to this group of data, then the frequency spectrum of each pixel is obtained, with the pixel
Peak frequency obtains the frequency spectrum profile of image as pixel frequency representative.Again to the frequency spectrum profile by frequency height
Color processing, i.e., carry out colour switching according to frequency height, realizes the mapping to color space, final to obtain the higher color of frequency more
Deep output effect image.
Display module shows the effect image of output, when the effect image somewhere color chin-deep (example of display
Such as it is peony), and its elsewhere color is shallower, then can be determined that has blutpunkte in saturate region.
When being operated, (main body body inserted into the patient after the doctor in charge sterilizes metal cannula optic probe module
Chamber), if blutpunkte is not present in vivo, it can be seen that shallower, continuous, the uniform picture of color on display (display module)
Face；If in vivo there are blutpunkte, over the display it can be seen that some field color is in dark color, and with other regions
Color is significantly different, at this time, so that it may blutpunkte is promptly found by the darker regions marked in display, so as to suffering from
Person's wound carries out emergent management.
Before using above-mentioned endoscopic imaging display effect image, image handled, provide one for this
Kind endoscopic imaging processing method, specific image processing step is as follows, referring to Fig. 2：
Step 101, the narrow linewidth light source module transmitting flashlight using endoscope, are inserted by light input module into metal
Lightpipe optics probe module, and uniform irradiation imaging position；
Step 102, based on endoscope metal cannula optic probe mould optical lens system in the block to imaging position carry out
Imaging obtains optical imagery；
Step 103, the light for being detected metal cannula optic probe module based on the high frame per second CCD/COMS modules of endoscope
Learn picture signal and be converted to electrical picture signal；Wherein, image more than high frame per second CCD/COMS modules exportable thousand frame per second；
Step 104, based on endoscope signal processing and drive module carry out spectrum change to each pixel of electrical picture signal
Processing is changed, obtains the frequency spectrum profile of image, image output processing module is then coloured frequency spectrum profile by frequency height
Processing, completes image procossing.
Endoscope signal processing analyzes frequency spectrum profile with drive module, the higher expression blood flowing speed of frequency
It is faster, and coloured according to frequency height, frequency spectrum profile is mapped to color space, i.e. image shows frequency and gets over Gao Yan
Color is deeper, then obtains embodying the effect image of blutpunkte position, and then effect image is exported；Display module (display) is shown
Effect image, doctor can judge blutpunkte position, and then searched in the region of the sign according to the distribution of color of effect image
To blutpunkte position, the timely processing to patient's wound is realized.
It should be appreciated that the above embodiment of the present invention and example, are in order at description and interpretation purpose, not thereby limit this hair
Bright scope.The scope of the present invention is defined by claim, rather than by above-described embodiment and example definition.
Claims (7)
1. a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte, it is characterised in that including metal cannula optic probe module, light
Input module, narrow linewidth light source module, high frame per second CCD/COMS modules, signal processing and drive module, display module, the gold
Belong to and be provided with light input module on intubation optic probe Modular surface, the smooth input module passes through fiber optic bundle and narrow linewidth light source
Module connects, and the metal cannula optic probe module is connected by optics adapter with high frame per second CCD/COMS modules, described
High frame per second CCD/COMS modules are connected by connection cables with signal processing with drive module, the signal processing and drive module
It is connected with display module；
Wherein, the metal cannula optic probe module built-in optical imaging system images output optical image signal, the height
Optical image signal is converted to electrical picture signal by frame per second CCD/COMS modules, and the signal processing is with drive module to electrical image
Signal carries out Spectrum Conversion and obtains the frequency spectrum profile of image, and carries out coloring treatment to electrical picture signal according to frequency height,
Output to display module is shown.
A kind of 2. endoscope of detectable Minimally Invasive Surgery blutpunkte according to claim 1, it is characterised in that the narrow linewidth
Light source module provides the laser output of certain wavelength and power, to be irradiated on injected organism tissue, because of injected organism tissue random scatter
Produce optical heterodyne phenomenon, the speed of the frequency representative blood flow velocity of its optical heterodyne signal.
A kind of 3. endoscope of detectable Minimally Invasive Surgery blutpunkte according to claim 2, it is characterised in that the flowing blood
Liquid scatters light frequencyThe optical heterodyne signal frequency produced by random scatter isWherein, f be light source frequency, c be that the light velocity, ν in vacuum is blood flow velocity.
A kind of 4. endoscope of detectable Minimally Invasive Surgery blutpunkte according to claim 1, it is characterised in that the high frame per second
Electrical picture signals more than CCD/COMS modules 1,000 frames of output per second.
5. a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte according to claim 1, it is characterised in that at the signal
Reason includes CCD/CMOS drive circuit modules, image spectrum conversion module, image output processing module and power supply with drive module
Module, CCD/CMOS drive circuit modules are connected with high frame per second CCD/COMS modules to drive high frame per second CCD/COMS modules to realize
The conversion of photoelectric image signal, image spectrum conversion module carry out spectral transformation processing to each pixel of electrical picture signal, obtain
To the frequency spectrum profile of image, image output processing module is then carried out at coloring the frequency spectrum profile of image by frequency height
Reason, obtains effect image and exports effect image to display module.
A kind of 6. endoscope of detectable Minimally Invasive Surgery blutpunkte according to claim 5, it is characterised in that described image frequency
Spectral transformation module carries out DFT transform to obtain the frequency spectrum profile of image to each pixel of electrical image.
7. a kind of endoscope of detectable Minimally Invasive Surgery blutpunkte a kind of as described in any one of claim 1-6 claim into
As processing method, it is characterised in that before endoscopic imaging shows image, image is handled, specific imaging
Image processing step is as follows：
101st, launch flashlight using the narrow linewidth light source module of endoscope, visited by light input module into metal cannula optics
Head module, and uniformly irradiation imaging position；
102nd, imaging position is imaged to obtain based on endoscope metal cannula optic probe mould optical imaging system in the block
Optical imagery；
103rd, the optical image signal for being exported metal cannula optic probe module based on the high frame per second CCD/COMS modules of endoscope
Electrical picture signal is converted to, wherein, image more than high frame per second CCD/COMS modules exportable 1,000 frame per second；
104th, spectral transformation processing is carried out to each pixel of electrical picture signal based on endoscope signal processing and drive module, obtained
To the frequency spectrum profile of image, image output processing module is then carried out at coloring the frequency spectrum profile of image by frequency height
Reason, completes image procossing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428026.6A CN107913052A (en) | 2017-12-26 | 2017-12-26 | A kind of endoscope and its image processing method of detectable Minimally Invasive Surgery blutpunkte |
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| CN201711428026.6A CN107913052A (en) | 2017-12-26 | 2017-12-26 | A kind of endoscope and its image processing method of detectable Minimally Invasive Surgery blutpunkte |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103717118A (en) * | 2012-03-30 | 2014-04-09 | 奥林巴斯医疗株式会社 | Endoscopic device |
| CN105574861A (en) * | 2015-12-14 | 2016-05-11 | 上海交通大学 | Unmarked blood stream imaging method and system |
-
2017
- 2017-12-26 CN CN201711428026.6A patent/CN107913052A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103717118A (en) * | 2012-03-30 | 2014-04-09 | 奥林巴斯医疗株式会社 | Endoscopic device |
| CN105574861A (en) * | 2015-12-14 | 2016-05-11 | 上海交通大学 | Unmarked blood stream imaging method and system |
Non-Patent Citations (2)
| Title |
|---|
| 李田泽: "《传感器技术设计与应用》", 31 May 2015 * |
| 钱蕴秋: "《超声诊断学》", 31 January 2008 * |
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Application publication date: 20180417 |