CN114903408A - Endoscope imaging system with diagnostic imaging - Google Patents
Endoscope imaging system with diagnostic imaging Download PDFInfo
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- CN114903408A CN114903408A CN202210428824.3A CN202210428824A CN114903408A CN 114903408 A CN114903408 A CN 114903408A CN 202210428824 A CN202210428824 A CN 202210428824A CN 114903408 A CN114903408 A CN 114903408A
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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
- A61B1/00043—Operational features of endoscopes provided with output arrangements
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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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- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The invention provides an endoscopic imaging system with diagnostic imaging, which belongs to the technical field of medical instruments and comprises an endoscope, an image processing system and an output device; the image processing system is respectively connected with the endoscope and the output equipment; the endoscope collects a plurality of endoscope images; the image processing system receives the endoscope images and respectively converts the endoscope images into gray level images; respectively comparing the gray value of each pixel point in the gray image with a preset threshold range, and extracting the pixel points of which the gray values do not meet the preset threshold range in each gray image; generating auxiliary diagnosis information according to the pixel points extracted from each gray level image; the output device outputs a diagnostic report containing the auxiliary diagnostic information. The system can automatically generate the auxiliary diagnosis result, so that a clinician can refer to the suggestion of the examining doctor, also can refer to the auxiliary diagnosis result or simultaneously refer to the suggestion of the examining doctor and the auxiliary diagnosis result during diagnosis, and the accuracy of the examination result is improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an endoscope imaging system with diagnostic imaging.
Background
The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software. The endoscope may enter the stomach transorally or through other natural orifices. The physician can use an endoscope to see the lesion which cannot be displayed by X-rays, for example, by means of which the physician can observe an ulcer or a tumor in the stomach, and can thus set up an optimal treatment plan.
Generally, when an examining doctor uses an endoscope, the examining doctor determines the position of a body abnormality based on his or her own medical experience and an image captured through a lens, and stores a screenshot. The clinician knows the condition of the patient by screenshot, so the examination result of the current endoscope is influenced by the experience of the examining physician.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an endoscopic imaging system with diagnostic imaging and a system thereof, which can automatically generate an auxiliary diagnostic result and improve the accuracy of an inspection result.
An endoscopic imaging system with diagnostic imaging comprising an endoscope, an image processing system and an output device; the image processing system is respectively connected with the endoscope and the output equipment;
the endoscope is used for collecting a plurality of endoscope images;
the image processing system is used for receiving the endoscope images and respectively converting the endoscope images into gray level images; respectively comparing the gray value of each pixel point in the gray image with a preset threshold range, and extracting the pixel points of which the gray values do not meet the preset threshold range in each gray image; generating auxiliary diagnosis information according to the pixel points extracted from each gray level image;
the output device is used for outputting a diagnosis report containing auxiliary diagnosis information.
Preferably, the preset threshold range includes an air threshold range and an organ average threshold range.
Preferably, the image processing system is specifically configured to:
marking the pixel points with the gray values meeting the air threshold range or the organ average threshold range as 1, and marking the pixel points with the gray values not meeting the air threshold range or the organ average threshold range as 0 to obtain a binary image;
and extracting pixel points marked as 0 in the binary image.
Preferably, the image processing system is specifically configured to:
respectively establishing a blank image with the same size according to each binary image;
adding pixel points extracted from the same binary image to a blank image, wherein the positions of the pixel points in the blank image are consistent with the positions of the pixel points in the binary image;
extracting a connected region in each blank image;
calculating the sizes of all connected regions in each blank image;
and extracting the sizes of the connected regions in all blank images corresponding to the same region, and defining the maximum value of the sizes of all the connected regions corresponding to the region as the size of the lesion of the region to obtain auxiliary diagnosis information.
Preferably, the output device is further configured to extract endoscopic images corresponding to the size of the lesion for addition to the diagnostic report.
Preferably, the resolution of the camera head in the endoscope is 720P.
Preferably, the image processing system includes a video input port, and a video amplification circuit connected to the video input port.
Preferably, the video amplifying circuit comprises a switching tube 21, a first capacitor 24, a second capacitor 26, a first resistor 22 and a second resistor 25;
wherein the first terminal of the switching tube 21 is connected to the video input port through the series second capacitor 26; the second end of the switching tube 21 is connected to the voltage end through a first resistor 22 in series, and the second end of the switching tube 21 is connected to the reference ground end through a first capacitor 24 and a second resistor 25 in series in sequence; the third end of the switching tube 21 is connected to the reference ground.
Preferably, the video amplifying circuit further includes a third resistor 23 and a fourth resistor 27;
the first terminal of the switching tube 21 is further connected to the voltage terminal through a series third resistor 23, and the first terminal of the switching tube 21 is further connected to the reference ground terminal through a series fourth resistor 27.
According to the technical scheme, the endoscope imaging system with the diagnostic imaging function can automatically generate the auxiliary diagnostic result, so that a clinician can refer to the suggestion of an examining doctor during diagnosis, can also refer to the auxiliary diagnostic result, or can refer to the suggestion of the examining doctor and the auxiliary diagnostic result simultaneously, and the accuracy of the examination result is improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a block diagram of an endoscopic imaging system with diagnostic imaging, provided by an embodiment.
Fig. 2 is a flowchart of a method for extracting a pixel point by the image processing system according to the embodiment.
Fig. 3 is a flowchart of a method for generating auxiliary diagnostic information by an image processing system according to an embodiment.
Fig. 4 is a circuit diagram of a video amplifying circuit according to an embodiment.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Example (b):
an endoscopic imaging system with diagnostic imaging, see fig. 1, comprises an endoscope 1, an image processing system 2 and an output device 3; wherein the image processing system 2 is respectively connected with the endoscope 1 and the output device 3;
the endoscope 1 is used for collecting a plurality of endoscope images;
the image processing system 2 is used for receiving the endoscope images and respectively converting the endoscope images into gray level images; respectively comparing the gray value of each pixel point in the gray image with a preset threshold range, and extracting the pixel points of which the gray values do not meet the preset threshold range in each gray image; generating auxiliary diagnosis information according to the pixel points extracted from each gray level image;
the output device 3 is used for outputting a diagnosis report containing auxiliary diagnosis information.
In the present embodiment, the endoscope 1 of the system can be used in different departments, such as otolaryngology department, gynecology department, and the like. The endoscopic image may be an image of an organ within the human body. The endoscope 1 may collect an endoscopic image when an examining doctor selects the endoscopic image; the endoscope 1 may also acquire endoscope images at regular times after entering the human body.
In the present embodiment, the image processing system 2 mainly performs image processing on the endoscopic image to obtain the lesion position or lesion size in the organ. The image processing system 2 firstly converts the endoscope image into a gray image, then compares the gray value of each pixel point in the gray image with a preset threshold range, and if the gray value meets the preset threshold range, the pixel point is indicated to belong to the air or normal tissues in organs. If the gray value does not meet the preset threshold range, the pixel point is indicated to belong to the tissue with the pathological change in the organ. The image processing system 2, upon identifying the diseased tissue in the organ, generates auxiliary diagnostic information, which may include the organ name of the lesion, the cause of the lesion, the size of the diseased tissue, and so forth.
In this embodiment, the output device 3 may be a display screen and a printer, the display screen may be used by the examining doctor to view the diagnosis report, and the printer may print the diagnosis report.
The endoscope imaging system with the diagnostic imaging function can automatically generate the auxiliary diagnostic result, so that a clinician can refer to the suggestion of an examining doctor, also can refer to the auxiliary diagnostic result or simultaneously refer to the suggestion of the examining doctor and the auxiliary diagnostic result during diagnosis, and the accuracy of the examination result is improved.
Further, in some embodiments, the preset threshold range includes an air threshold range and an organ mean threshold range.
In the present embodiment, the image processing system 2 mainly recognizes the air in the body and normal tissues in the organ at the time of recognizing the endoscopic image. And when the gray value of the pixel point in the gray image meets the air threshold range, the pixel point is indicated to represent the air in the body. When the gray value of the pixel point in the gray image meets the average threshold range of the organs, the pixel point is shown to represent the normal tissues in the organs in vivo.
Further, in some embodiments, referring to fig. 2, the image processing system 2 is specifically configured to:
s11: marking the pixel points with the gray values meeting the air threshold range or the organ average threshold range as 1;
s12: marking the pixel points with the gray values not meeting the air threshold range and the organ average threshold range as 0 to obtain a binary image;
s13: and extracting pixel points marked as 0 in the binary image.
In this embodiment, the image processing system 2 labels the normal pixel point as 1 and labels the abnormal pixel point as 0, so that the abnormal tissue in the organ identified by the image processing system 2 is mainly determined by the abnormal pixel point, and therefore the image processing system 2 extracts the pixel point labeled as 0 in the binarized image for generating the auxiliary diagnostic information.
Further, in some embodiments, referring to fig. 3, the image processing system 2 is specifically configured to:
s21: respectively creating a blank image with the same size according to each binary image;
s22: adding pixel points extracted from the same binary image to a blank image, wherein the positions of the pixel points in the blank image are consistent with the positions of the pixel points in the binary image;
s23: extracting a connected region in each blank image;
s24: calculating the sizes of all connected regions in each blank image;
s25: extracting the sizes of the connected regions in all blank images corresponding to the same region in the human body, and defining the maximum value of the sizes of all the connected regions corresponding to the region as the size of the lesion of the region to obtain auxiliary diagnosis information.
In this embodiment, the image processing system 2 may put the extracted pixel points into the blank image, and obtain the size of the lesion in the region by analyzing all blank images of a certain organ of the human body. For example, assuming that the endoscope 1 collects a plurality of endoscopic images of the stomach, and recognizes the lesion sizes of the plurality of endoscopic images, the lesion size of the stomach is obtained from the maximum value of the lesion sizes of all the endoscopic images. When the size of the endoscope image is identified, the extracted pixel points are added to the blank image, wherein the positions of the pixel points in the blank image are consistent with the positions of the pixel points in the binary image. The image processing system 2 then extracts connected regions in each blank image, and if there are multiple lesion locations in the organ, for example multiple polyps on the organ, each of which will appear as a connected region in the blank image, the image processing system 2 identifies all lesion locations of the organ. Since different lens angles in the endoscope 1 cause different sizes of connected regions representing diseased tissues in the captured endoscopic image, in order to obtain the most accurate size of the diseased tissue, the system defines the maximum value of the sizes of all the connected regions corresponding to a certain organ as the size of the diseased tissue in the region, thereby obtaining auxiliary diagnostic information.
Further, in some embodiments, the output device 3 is also used to extract endoscopic images corresponding to the size of the lesion, and add the endoscopic images to the diagnosis report.
In this embodiment, the output device 3 may further add an endoscopic image corresponding to the size of the lesion in the diagnosis report for the clinician to view. For example, assuming that the endoscopic image corresponding to the stomach includes the endoscopic image a, the endoscopic image B, and the endoscopic image C, and the size of the connected region corresponding to a certain lesion tissue in the endoscopic image 2 is the largest, the output device 3 attaches the endoscopic image 2 to the diagnosis report.
Further, in some embodiments, the resolution of the camera head in the endoscope 1 is 720P.
In the present embodiment, the endoscope 1 takes an image using a high-resolution camera, and improves the resolution of the image.
Further, in some embodiments, the image processing system 2 includes a video input port, and video amplification circuitry coupled to the video input port.
In the present embodiment, the video input port of the image processing system 2 is connected to the output port of the endoscope 1, and the input port of the video amplifier circuit is connected to the video input port of the image processing system 2.
Further, in some embodiments, referring to fig. 4, the video amplification circuit includes a switching tube 21, a first capacitor 24, a second capacitor 26, a first resistor 22, and a second resistor 25;
wherein the first terminal of the switching tube 21 is connected to the video input port through the series second capacitor 26; the second end of the switching tube 21 is connected to the voltage end through a first resistor 22 in series, and the second end of the switching tube 21 is connected to the reference ground end through a first capacitor 24 and a second resistor 25 in series in sequence; the third end of the switching tube 21 is connected to the reference ground.
In this embodiment, the first end of the switching tube 21 may be a base, and if the second end of the switching tube 21 is a collector, the third end thereof is an emitter, and if the second end of the switching tube 21 is an emitter, the third end thereof is a collector. The voltage end of the video amplifying circuit can be direct current, and the direct current can be 5V or 9V. The first resistor 22 may be 220 Ω, and the value of the first resistor 22 cannot be too large, so that the waveform is clipped when the waveform is large, and the bright order cannot be separated. The value of the first resistor 22 cannot be too small, otherwise the waveform distortion is significant.
Further, in some embodiments, the video amplification circuit further includes a third resistor 23 and a fourth resistor 27;
the first terminal of the switching tube 21 is further connected to the voltage terminal through a series third resistor 23, and the first terminal of the switching tube 21 is further connected to the reference ground terminal through a series fourth resistor 27.
In this embodiment, the third resistor 23 and the fourth resistor 27 may be both dc bias resistors, and the third resistor 23 and the fourth resistor 27 should be as small as possible, and at least be in the order of K Ω.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. An endoscopic imaging system with diagnostic imaging comprising an endoscope, an image processing system and an output device; wherein the image processing system is connected with the endoscope and the output device respectively;
the endoscope is used for collecting a plurality of endoscope images;
the image processing system is used for receiving the endoscope images and respectively converting the endoscope images into gray level images; respectively comparing the gray value of each pixel point in the gray image with a preset threshold range, and extracting the pixel points of which the gray values do not meet the preset threshold range in each gray image; generating auxiliary diagnosis information according to the pixel points extracted from each gray image;
the output device is used for outputting a diagnosis report containing the auxiliary diagnosis information.
2. The endoscopic imaging system with diagnostic imaging according to claim 1,
the preset threshold range includes an air threshold range and an organ average threshold range.
3. An endoscopic imaging system with diagnostic imaging as claimed in claim 2, wherein the image processing system is specifically configured to:
marking the pixel points with the gray values meeting the air threshold range or the organ average threshold range as 1, and marking the pixel points with the gray values not meeting the air threshold range and the organ average threshold range as 0 to obtain a binary image;
and extracting pixel points marked as 0 in the binary image.
4. An endoscopic imaging system with diagnostic imaging as in claim 3, wherein the image processing system is specifically configured to:
respectively creating a blank image with the same size according to each binary image;
adding the pixel points extracted from the same binary image to the blank image, wherein the positions of the pixel points in the blank image are consistent with the positions of the pixel points in the binary image;
extracting a connected region in each blank image;
calculating the sizes of all connected regions in each blank image;
and extracting the sizes of the connected regions in all blank images corresponding to the same region, and defining the maximum value of the sizes of all the connected regions corresponding to the region as the size of the lesion of the region to obtain the auxiliary diagnosis information.
5. The endoscopic imaging system with diagnostic imaging according to claim 4, wherein said output device is further configured to extract endoscopic imagery corresponding to said lesion size for addition to said diagnostic report.
6. The endoscopic imaging system with diagnostic imaging according to claim 1,
the resolution of the camera in the endoscope is 720P.
7. An endoscopic imaging system with diagnostic imaging according to claim 1,
the image processing system comprises a video input port and a video amplification circuit connected with the video input port.
8. The endoscopic imaging system with diagnostic imaging according to claim 7,
the video amplifying circuit comprises a light opening tube (21), a first capacitor (24), a second capacitor (26), a first resistor (22) and a second resistor (25);
wherein a first end of the switch tube (21) is connected to the video input port by a series second capacitor (26); the second end of the switch tube (21) is connected to a voltage end through a first resistor (22) in series, and the second end of the switch tube (21) is connected to a reference ground end through a first capacitor (24) and a second resistor (25) in series in sequence; the third end of the switch tube (21) is connected to the reference ground.
9. An endoscopic imaging system with diagnostic imaging according to claim 8 wherein said video amplification circuitry further comprises a third resistor (23) and a fourth resistor (27);
the first end of the switch tube (21) is also connected to the voltage end through a series third resistor (23), and the first end of the switch tube (21) is also connected to the reference ground end through a series fourth resistor (27).
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Cited By (1)
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| CN120078519A (en) * | 2025-02-25 | 2025-06-03 | 贵州医科大学附属医院 | A guidance auxiliary system for minimally invasive thoracoscopic surgery of mediastinal tumors |
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