CN116982969A - A device and method for rapid detection of scoliosis Cobb angle - Google Patents

Abstract

The invention discloses a scoliosis Cobb angle rapid detection device and method, which includes: an equipment shell group, a Cobb angle profile frame, a tripod imaging group, an electronic control module group, a display, a long table, and a liftable seat; it can be used The movement of the L-shaped table tennis stick across the body captures the top-to-bottom trend of the internal structures of the spine. There is also a camera device with a tripod that can reconstruct the trend of the table tennis ball through computer imaging algorithms to simulate the top-to-bottom trend of the spine; the trajectory of the table tennis ball is obtained through image processing, and the trajectory of the table tennis ball is obtained through the algorithm. Calculate the Cobb angle. The method created by the present invention to use table tennis trajectories to estimate the spine Cobb angle may bring some potential benefits; table tennis trajectories are continuous motion paths and can be repeatedly measured in real-time or non-real-time situations, thereby potentially providing more data. points and more observation opportunities, increasing the accuracy and reliability of estimating the Cobb angle.

Description

Rapid detection device and method for scoliosis Cobb angle

Technical Field

The application relates to the technical field of medical X-ray image processing, in particular to a device and a method for rapidly detecting a scoliosis Cobb angle.

Background

Scoliosis refers to the abnormal lateral curvature of the spine at the coronal plane (i.e., as viewed from the back). Normally, the spine should be straight from front to back, but scoliosis causes the spine to bend to one side to form a C-shape or S-shape. Scoliosis generally develops during childhood and adolescence, particularly in women, but may also occur in adults. In most cases, scoliosis does not cause symptoms or health problems, but in severe cases it can lead to discomfort, body asymmetry and spinal deformities. For screening and diagnosis of scoliosis, the physician will typically perform the following steps:

physical examination: the doctor can observe the posture and the body symmetry of the patient and search for signs of scoliosis, such as shoulder height asymmetry, pelvic tilt and the like;

x-ray examination: spinal X-ray examinations were performed to measure Cobb angle to determine the severity and type of scoliosis.

Magnetic Resonance Imaging (MRI): where detailed knowledge of the spinal structure is required, an MRI examination may be performed to obtain more accurate images. However, the above method has many problems, and the simple visual inspection lacks data accuracy, and other complex detection is not suitable for large-scale screening and has radiation hazard, and basically only can detect scoliosis objects.

There are also many methods for in vitro detection and prediction of Cobb angle in the market, such as in vitro prediction of spine structure by means of ultrasound, infrared, structured light, etc., which is greatly improved compared with the aforementioned visual method, and can achieve a certain effect. Meanwhile, the methods have great defects, at least tens of thousands or even hundreds of thousands of detection instruments and equipment are needed to be purchased, the difficulty of handheld operation is high, professional training is needed, and time and labor are wasted.

Therefore, it is necessary to provide a rapid detection device and method for scoliosis Cobb angle to solve the above technical problems.

Disclosure of Invention

This section is intended to summarize some aspects of embodiments of the application and to briefly introduce some preferred embodiments, which may be simplified or omitted in this section, as well as the description abstract and the title of the application, to avoid obscuring the objects of this section, description abstract and the title of the application, which is not intended to limit the scope of this application.

Therefore, the technical problem to be solved by the present application is that of a method for estimating the angle of the spine Cobb using a table tennis trajectory, without the need to observe the spine using X-rays or other imaging techniques, thereby avoiding radiation exposure and other potential discomfort; second, tracking the motion profile of a table tennis ball using cameras and computer vision algorithms has lower cost than conventional imaging techniques.

In order to solve the technical problems, the application provides the following technical scheme: a scoliosis Cobb angle rapid detection device, comprising: the device comprises a device shell group, a Cobb angle section frame, a tripod imaging group, an electronic control module group, a display, a strip table and a liftable seat; the tripod imaging group is arranged on the Cobb angle section frame, the electronic control module group is connected with the display and the tripod imaging group, the display is arranged on the strip table, and a class lifting seat is arranged beside the strip table;

the Cobb angle section frame comprises: the table tennis ball is fixedly connected with the left side of the cross rod, the bottom end of the cross rod is connected with a plurality of springs, and the springs are connected with the balls;

the tripod imaging group includes: the camera is fixedly connected with the tripod through threads, and a usb interface is arranged on the camera; the camera usb interface is connected with the notebook computer through a data line;

the electronic control module group includes: the device comprises a notebook computer, a 220V-12V transformer, a USB extension socket, an HDMI extension interface, an AC power socket with a switch, a keyboard, a mouse, an AC power socket with a switch and a 220V-19V transformer; the AC power socket with the switch is electrically connected with a 220V-12V transformer, the 220V-12V transformer is electrically connected with a notebook computer, the notebook computer is electrically connected with a keyboard and a mouse, the USB expansion socket is electrically connected with an HDMI expansion interface, and the 220V-19V transformer is electrically connected with a carrying display;

the notebook computer and the display are all placed on the strip table.

As a preferable scheme of the rapid detection device for scoliosis Cobb angle of the present application, the Cobb angle profile frame further includes: the L-shaped table tennis bat is simply held by hand, and the structure of the spine from top to bottom can be obtained by utilizing the movement trend of the L-shaped table tennis bat on the body.

As a preferable scheme of the rapid detection device for scoliosis Cobb angle of the present application, the tripod imaging group further includes: a camera device with a tripod can reconstruct the trend of a table tennis ball through a computer imaging algorithm to simulate the structural trend of a spine.

The application has the beneficial effects that: through the device combination, scoliosis detection can be more convenient, the prediction of a spine structure is finished by utilizing a modern computer technology and an image processing technology, the cobb angle can be calculated by adopting the simplest and most common device, the cobb angle can be estimated and calculated in a very short time, the rigidity requirements of no need of holding by hands, no need of professional training and no need of professional equipment are met, and the estimation of the spine structure and cobb angle calculation can be met by simple equipment and a camera acquisition and image adding algorithm. The device comprises two modules, wherein the first module is a simple handheld L-shaped table tennis stick, and the structure of the spine from top to bottom can be obtained by utilizing the movement trend of the device on the body; the second module is a camera device with a tripod, and the gesture of the table tennis ball can be reconstructed through a computer imaging algorithm to simulate the structural trend of the spine.

In view of the problem that the scoliosis Cobb angle rapid detection device can be further improved when in use, a detection method is provided.

In order to solve the technical problems, the application also provides the following technical scheme: a detection method comprises the rapid detection device for scoliosis Cobb angle, image processing and algorithm.

As a preferred scheme of the detection method, how to obtain the track of the detected table tennis through the image data, the following steps are adopted:

s1: image preprocessing: preprocessing the acquired image to remove noise, adjust contrast, enhance image details and the like;

s2: target detection and tracking: identifying the position of the table tennis ball in the image and tracking the movement of the table tennis ball by using a target detection and tracking algorithm in a computer vision technology;

s3: track reconstruction: during the tracking of the table tennis ball, the collected position information can be used to reconstruct the track of the table tennis ball.

As a preferable scheme of the detection method, how to calculate the Cobb angle according to the table tennis track, the method is as follows:

s1: curve fitting: for the resulting table tennis motion trajectory, an attempt may be made to approximate its motion path using curve fitting techniques;

s2: calculating curvature: the curvature of the ball track is calculated using a fitted curve or mathematical function. Curvature represents the degree of curvature of a curve at a point;

s3: estimating Cobb angle: after finding the most oblique point on the curvature, this angle is obtained as an approximation of the Cobb angle of the scoliosis.

The application has the other beneficial effects that: the scoliosis angle Cobb angle can be accurately determined through the image data and the algorithm, the scoliosis area is further determined, the accuracy of subsequent processing steps is improved, the target detection algorithm can help to position the table tennis in the image, the target tracking algorithm can track the movement of the table tennis between continuous frames, the movement track of the table tennis can be obtained by connecting the continuous positions of the table tennis, and the curvature represents the bending degree of the curve at a certain point. According to the curvature of the table tennis ball, the motion bending condition of the ball can be estimated, manual operation of doctors is not needed in the whole process, automatic, accurate and rapid scoliosis detection is achieved, errors generated by manually measuring a scoliosis angle Cobb angle and requirements of manually determining the scoliosis type on knowledge storage are avoided, and the efficiency and accuracy of scoliosis detection are effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic view of a Cobb angle profile frame of a rapid scoliosis Cobb angle detection device and method according to an embodiment of the present application;

FIG. 2 is a schematic view of a tripod imaging set for a rapid detection apparatus and method for scoliosis Cobb angle according to an embodiment of the present application;

fig. 3 is a schematic diagram of image data and algorithm of a rapid scoliosis Cobb angle detection device and method according to an embodiment of the present application.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.

In the following detailed description of the embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration only, and in which is shown by way of illustration only, and in which the scope of the application is not limited for ease of illustration. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Further still, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1-2, a first embodiment of the present application provides a rapid detection apparatus for scoliosis Cobb angle, including: the device comprises a device shell group, a Cobb angle section frame, a tripod imaging group, an electronic control module group, a display, a strip table and a liftable seat; the tripod imaging group is arranged on the Cobb angle section frame, the electronic control module group is connected with the display and the tripod imaging group, the display is arranged on the strip table, and a class lifting seat is arranged beside the strip table; the Cobb angle section frame comprises: the table tennis ball comprises a cross rod 102, a vertical rod 103, table tennis balls 101, balls 104 and springs 105, wherein the right end of the cross rod 102 is fixedly connected with the top end of the vertical rod 103, the table tennis balls 101 are fixedly connected with the left side of the cross rod 102, the bottom end of the vertical rod 103 is connected with a plurality of the springs 105, and the springs 105 are connected with the balls 104; the tripod 106 imaging group includes: the camera is fixedly connected with the tripod 106 through threads, and a usb interface is arranged on the camera; the camera usb interface is connected with the notebook computer through a data line; the electronic control module group includes: the device comprises a notebook computer, a 220V-12V transformer, a USB extension socket, an HDMI extension interface, an AC power socket with a switch, a keyboard, a mouse, an AC power socket with a switch and a 220V-19V transformer; the AC power socket with the switch is electrically connected with a 220V-12V transformer, the 220V-12V transformer is electrically connected with the notebook computer 105, the notebook computer 105 is electrically connected with a keyboard and a mouse, the USB expansion socket is electrically connected with the HDMI expansion interface, and the 220V-19V transformer is electrically connected with the carrying display; the notebook computer 105 and the display are all placed on the strip table. Specifically, through horizontal pole 102 right-hand member and montant 103 top interconnect, table tennis 101 and the left side of horizontal pole 102 interconnect fixed connection, montant 103 bottom is connected with 3 left and right springs 105, and every spring 105 is connected with ball 104 again. The table tennis 101 track is a continuous motion path that can be repeatedly measured in real-time or non-real-time, potentially providing more data points and more observation opportunities, increasing the accuracy and reliability of estimating Cobb angles. The acquisition device (e.g., camera) for the table tennis track is more flexible and portable than conventional X-ray devices. This makes the method easier to apply in different environments, which may be advantageous especially in areas where medical resources are limited. At the same time, the set of electronic control modules can analyze the received image data, which is a non-invasive screening method that does not require the use of X-rays or other imaging techniques to view the spine, thereby avoiding radiation exposure and other potential discomfort. Second, tracking the motion profile of a table tennis ball using cameras and computer vision algorithms may be less costly than conventional imaging techniques, as such devices are generally more common and readily available. The detection device can be adjusted according to the needs, and is more beneficial to the scoliosis examination of the user. A transverse line is drawn on the upper edge of the upper vertebral body and a transverse line is drawn on the lower edge of the lower vertebral body. A vertical line is made for each of the two transverse lines. The intersection angle of two perpendicular lines is the Cobb angle. For larger lateral bends, the direct intersection angle of the two transverse lines is also equivalent to the Cobb angle. One of the reference criteria for scoliosis severity is the magnitude of the scoliosis angle, commonly referred to as Cobb angle, which is named according to U.S. orthopedic surgeon John Robert Cobb. The most common method for measuring the angle of the scoliosis is the measuring method. After taking the X-ray film, a spine surgeon or an orthologist can tell the patient about the angle measurement, and meanwhile, different corrective intervention schemes are given according to the angle and other factors, so that scoliosis treatment is more timely, scientific, normal and effective. An operator firstly places a tripod and places a camera on the tripod, and an observed person is placed in a target area corresponding to the camera. The operator firstly turns on the switch of the notebook computer, then connects the camera head part to the computer, then turns on the matched software of the computer, and establishes a new personnel file. Then please observe the personnel and stand against the camera, inform the operator to turn on the image data acquisition software of the computer after confirming. Then the operator holds the middle part of the vertical rod of the Cobb angle section bar frame, so that the balls on the springs at the bottom end are contacted with the uppermost part of the vertebral column of the observed person, and the vertebral column is positioned in the middle part of 3 springs. Then, the vertical rod starts to be drawn from top to bottom according to the outline track of the spine.

In summary, the method of estimating the spine Cobb angle using a table tennis trajectory may provide some potential benefits. First, this is a non-invasive screening method that does not require the use of X-ray or other imaging techniques to view the spine, thereby avoiding radiation exposure and other potential discomfort. Second, tracking the motion profile of a table tennis ball using cameras and computer vision algorithms may be less costly than conventional imaging techniques, as such devices are generally more common and readily available.

Example 2

Referring to fig. 3, a second embodiment of the present application, which is different from the previous embodiment, provides a detection method, which includes the rapid detection device for scoliosis Cobb angle according to any of the previous embodiments, and image processing and algorithm; firstly, the track of the detected table tennis ball can be obtained through the image data, and the following steps are adopted: image preprocessing: preprocessing the acquired image to remove noise, adjust contrast, enhance image details and the like; this helps to improve the accuracy and effectiveness of subsequent processing steps by image preprocessing. S2: target detection and tracking: identifying the position of the table tennis ball in the image and tracking the movement of the table tennis ball by using a target detection and tracking algorithm in a computer vision technology; the target detection algorithm may help locate the table tennis ball in the image, while the target tracking algorithm may track the movement of the table tennis ball between successive frames. S3: track reconstruction: during the tracking of the table tennis ball, the collected position information can be used to reconstruct the track of the table tennis ball. Track reconstruction by connecting successive positions of the table tennis ball, the movement track of the table tennis ball can be obtained. From the above image data we can use the table tennis trajectory to directly estimate Cobb angle: the steps for calculating Cobb angle are as follows: s1: curve fitting: for the resulting table tennis motion profile, an attempt may be made to approximate its motion path using curve fitting techniques. And fitting the table tennis track data into a mathematical function or curve through curve fitting, thereby facilitating subsequent analysis. S2: calculating curvature: the curvature of the ball track is calculated using a fitted curve or mathematical function. Curvature represents the degree of curvature of a curve at a point. Based on the curvature of the table tennis ball, the motion curvature of the ball can be estimated. S3: estimating Cobb angle: after finding the most oblique point on the curvature, this angle is obtained as an approximation of the Cobb angle of the scoliosis. The method of estimating the spine Cobb angle using a table tennis trajectory may offer some potential benefits. First, this is a non-invasive screening method that does not require the use of X-ray or other imaging techniques to view the spine, thereby avoiding radiation exposure and other potential discomfort. Second, tracking the motion profile of a table tennis ball using cameras and computer vision algorithms may be less costly than conventional imaging techniques, as such devices are generally more common and readily available.

The curvature can be calculated quickly using the image processing algorithm using the following formula

k＝(y2-y1)/(x2-x1)

Where k is the slope of the curve, y1 and y2 are the ordinate of any two points on the curve, and x1 and 2 are the abscissa of any two points on the curve.

After the maximum slope of the curve is obtained, the angle can be calculated using the following formula

Angle = arctan (slope k) x 180/pi

Where the slope k refers to the maximum slope of the curve calculated previously.

From the above formula, the angle can be calculated

For example, if the maximum slope of the curve is 0.5, then the angle is

Angle = arctan (0.5) x 180/pi

Angle = 26.5650511776

There are also many methods for in vitro detection and prediction of Cobb angle in the market, such as in vitro prediction of spine structure by means of ultrasound, infrared, structured light, etc., which is greatly improved compared with the aforementioned visual method, and can achieve a certain effect. At the same time, these methods have great drawbacks, such as at least thousands or tens of thousands or even hundreds of thousands of instruments and equipment to be purchased, high difficulty in hand-held operation, and time and effort consumption. Therefore, the cobb angle calculation can be completed by using the simplest and most common device by using the modern computer technology and image processing technology to complete the prediction of the spine structure, and is an essential link for scoliosis screening. The method has the characteristics that the spine structure is estimated and the cobb angle is calculated in a very short time, the rigidity requirements of no need of holding, no need of professional training and no need of professional equipment are met, and the estimation of the spine structure and the cobb angle calculation can be met through simple equipment and a camera acquisition and image adding algorithm. Cobb angle of scoliosis is a standard method for measuring scoliosis severity. Cobb angle of scoliosis is a standard method for measuring scoliosis severity. Cobb angle is defined by measuring the angle of spinal curvature in an X-ray or other imaging technique. It is the angle between a vertical line made from the line segment between the most inclined upper cone and the most inclined lower cone and the two line segments of the intersection point.

In conclusion, the track of the table tennis ball can be rebuilt in the tracking process of the table tennis ball by using a target detection and tracking algorithm in a computer vision technology through image data processing and algorithm according to the track of the table tennis ball, so that the movement track of the table tennis ball can be obtained, and the Cobb angle can be estimated according to the track of the table tennis ball.

It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.

Claims (6)

1. A scoliosis Cobb angle rapid detection device, comprising: the device comprises a device shell group, a Cobb angle section frame, a tripod imaging group, an electronic control module group, a display, a strip table and a liftable seat; the tripod imaging group is arranged on the Cobb angle section frame, the electronic control module group is connected with the display and the tripod imaging group, the display is arranged on the strip table, and a liftable seat is arranged beside the strip table;

the Cobb angle section frame comprises: the table tennis ball comprises a cross rod (102), a vertical rod (103), table tennis balls (101), balls (104) and springs (105), wherein the right end of the cross rod (102) is connected with the top end of the vertical rod (103), the table tennis balls (101) are fixedly connected with the left side of the cross rod (102), the bottom end of the vertical rod (103) is connected with a plurality of the springs (105), and the springs (105) are connected with the balls (104);

the tripod imaging group includes: the camera comprises a camera (107), a tripod (106) and a camera usb expansion interface, wherein the camera (107) is fixedly connected with the tripod (106) through threads, and the camera (107) is provided with the usb interface; the camera usb interface is connected with the notebook computer (105) through a data line;

the electronic control module group includes: the notebook computer (105), the 220V-12V transformer, the USB expansion socket, the HDMI expansion interface, the AC power socket with the switch, the keyboard, the mouse, the AC power socket with the switch and the 220V-19V transformer; the AC power socket with the switch is electrically connected with a 220V-12V transformer, the 220V-12V transformer is electrically connected with a notebook computer, the notebook computer is electrically connected with a keyboard and a mouse, the USB expansion socket is electrically connected with an HDMI expansion interface, and the 220V-19V transformer is electrically connected with a carrying display;

the notebook computer and the display are all placed on the strip table.

2. The scoliosis Cobb angle rapid detection device according to claim 1, wherein: the Cobb angle section frame further comprises: the L-shaped table tennis bat is simply held by hand, and the trend of the internal structure of the spine from top to bottom can be obtained by utilizing the trend of the L-shaped table tennis bat moving on the body.

3. The scoliosis Cobb angle rapid detection device according to claim 1, wherein: the tripod imaging group also comprises a camera device with a tripod, and the trend of the table tennis ball can be reconstructed through a computer imaging algorithm to be used for simulating the trend of the structure of the spine from top to bottom.

4. A method of detection, characterized by: a rapid scoliosis Cobb angle detection device, and an image processing and algorithm comprising the device according to any one of claims 1-3.

5. The method of detection according to claim 4, wherein: the track of the detected table tennis ball is obtained through the image data, and the following steps are adopted:

s1: image preprocessing: preprocessing the acquired image to remove noise, adjust contrast, enhance image details and the like;

s2: target detection and tracking: identifying the position of the table tennis ball in the image and tracking the movement of the table tennis ball by using a target detection and tracking algorithm in a computer vision technology;

s3: track reconstruction: during the tracking of the table tennis ball, the collected position information can be used to reconstruct the track of the table tennis ball.

6. The method of detection according to claim 4, wherein: how to calculate the Cobb angle according to the table tennis track is as follows:

s1: curve fitting: for the resulting table tennis motion trajectory, an attempt may be made to approximate its motion path using curve fitting techniques;

s2: calculating curvature: the curvature of the ball track is calculated using a fitted curve or mathematical function. Curvature represents the degree of curvature of a curve at a point;

s3: estimating Cobb angle: after finding the most oblique point on the curvature, this angle is obtained as an approximation of the Cobb angle of the scoliosis.