KR100919140B1 - Method for collecting biomechanical data by biomechanical parameter and system for executing the method - Google Patents

Abstract

Disclosed are a biomechanical data collection method for each biomechanical parameter and a system for performing the method. CLAIMS 1. A method of collecting biomechanical data in a vision system using markers, the method comprising: selecting at least one biomechanical parameter; And providing guide information on the attachment of the marker to collect biomechanical data corresponding to the selected biomechanical parameter.

Musculoskeletal disorders, biomechanics, biomechanical parameters, biomechanical data, markers, measurement point guidance, marker attachment guidance, attachment point guidance, missing marker, error guidance

Description

Method for collecting biomechanical data for each biomechanical parameter and system for performing the method {METHOD FOR COLLECTING BIOMECHANICAL DATA BY BIOMECHANICAL PARAMETER AND SYSTEM FOR EXECUTING THE METHOD}

The present invention relates to a biomechanical measurement system, and more particularly, to a method and a system for collecting biomechanical data according to biomechanical biomechanical parameters for collecting biomechanical data necessary for diagnosing musculoskeletal disorders.

In general, in order to diagnose musculoskeletal disorders, a biomechanical parameter that is clinically meaningful by visually confirming the skeletal condition of the human body required for diagnosis using an angulometer and an tractograph. Measure Such a method involves the subjective conception of a person, which is not only inaccurate but also cannot measure dynamic changes.

In addition, biomechanical data can be measured using motion capture equipment, but not in terms of biomechanical parameters. That is, only biomechanical data, which is one point of the elements constituting the biomechanical parameters, is measured. Therefore, it does not have the same clinical meaning as biomechanical parameters. For example, the position of the biomechanical data may be displayed, such as the position of the marker such as the shoulder blade of the left shoulder, the shoulder blade of the right shoulder, etc., rather than being represented by a biomechanical parameter such as the difference between the two shoulder heights. In order to measure biomechanical parameters in this way, there is a problem that it is necessary to know all the anatomical positions of the relevant biomechanical data accurately and to perform various additional tasks such as calculating biomechanical parameters again from the position of the biomechanical data. .

On the other hand, musculoskeletal disorders can be diagnosed using electronic diagnostic devices such as X-rays, magnetic resonance imaging (MRI), tomography (CT). Likewise, these devices cannot obtain diagnostic data that must be obtained in an operational state because they provide only the measured results when the subject is in a static state and cannot measure biomechanical information when the subject is in operation.

In addition, the diagnostic method through gait analysis may include a motion analysis based on a vision system using markers, plantar pressure analysis, and the like. Image information (visual raw data, or technical raw data) acquired through such a version system can be applied to clinical after data processing as biomechanical parameters.

However, although biomechanical analyzes using vision systems take a lot of time, there are no criteria for collecting biomechanical data when diagnosing musculoskeletal system.

The present invention provides system usage criteria and data collection criteria for vision systems to more effectively acquire biomechanical data necessary for the diagnosis of musculoskeletal disorders.

The present invention provides a method for accurately and efficiently collecting biomechanical data for diagnosing musculoskeletal disorders and a system for performing the method.

A method of collecting biomechanical data in a vision system using markers, the method comprising: selecting at least one biomechanical parameter; And providing guide information on the attachment of the marker to collect biomechanical data corresponding to the selected biomechanical parameter.

The present invention provides a system for collecting biomechanical data necessary for diagnosing a musculoskeletal disorder of a subject by using a marker, the system comprising: a measurer interface unit for selecting at least one biomechanical parameter by a measurer; And a control unit providing guide information on the attachment of the marker through the measurer interface to collect biomechanical data corresponding to the selected biomechanical parameter.

The biomechanical data collection method and system for each parameter according to the present invention can more accurately and accurately measure data by providing data collection criteria for biomechanical data necessary for the diagnosis of musculoskeletal disorders.

According to the present invention, it is possible to calculate more accurate biomechanical parameters by acquiring biomechanical data based on data collection criteria, and further provide a reliable diagnostic system.

Hereinafter, a biomechanical data collection method for each biomechanical parameter and a system for performing the method will be described with reference to the accompanying drawings.

In the present invention, a vision system using markers is for diagnosing biomechanical musculoskeletal disorders, and collecting biomechanical data comprehensively or individually to obtain clinically meaningful biomechanical parameters based thereon. Can be.

To this end, the measurer attaches at least one marker to the skeletal region of the subject, orders a predefined reference action such as standing posture, walking and running, and collects biomechanical data through the marker during the reference action. Biomechanical parameters can be calculated with.

The present invention is characterized in providing an attachment criterion and an attachment position guide for a marker to collect biomechanical data according to biomechanical parameters required for the diagnosis of musculoskeletal disorders.

Here, the biomechanical parameters are the degree of flexion of the finger, the degree of flexion of the arm skeleton, the difference in the height of the shoulder, the degree of rotation of the shoulder, the degree of tilting the shoulder, the direction of bending of the spine, the degree of curvature of the spine, the distance between the ear and shoulder Spacing, pelvic front / left / right height differences, pelvic rotation, pelvic hardness, skeletal flexion, angle between the femur and the lower femur, angle of the apex and sole of the medial, angle of the ankle and knee, angle of toe flexion And the like.

Each of the biomechanical parameters may be calculated based on the biomechanical data by collecting biomechanical data necessary to calculate the corresponding parameters.

The biomechanical data may be obtained by the basic operation of the subject, which is performed by attaching the marker to the skeletal region of the subject and tracking the position of the marker. At this time, the attachment position of the marker is determined based on the biomechanical data corresponding to the biomechanical parameter to be calculated by the measurer.

For example, in the case of 'height difference of shoulders' among biomechanical parameters, the biomechanical data corresponding to this means a difference in height between both shoulder blades of the subject. In addition, biomechanical data on the angle between the radiography and the knee joint correspond to both the knee joint and the ankle bone of the subject, and the biomechanical data on the angle between the femur and the lower femur indicate the upper and lower extremities of the femur with respect to the left and right lower extremities. It corresponds to the bottom of the lower femur in the middle.

Therefore, in order to obtain biomechanical data for each biomechanical parameter, it is preferable to attach the marker to the skeletal region and / or the muscle region corresponding to the anatomical position of the subject corresponding to each biomechanical data.

Referring to FIG. 1, a biomechanical data collection method for each biomechanical parameter according to the present invention will be described. 1 is a diagram illustrating the entire process of a biomechanical data collection method according to the present invention in a vision system using a marker.

First, the measurer selects at least one biomechanical parameter necessary for diagnosing the musculoskeletal disorder of the subject (S101).

Here, the measurer may execute a measurer interface screen and select the biomechanical parameter through the executed measurer interface screen.

FIG. 2 is a diagram illustrating an example of a screen of an interface for measuring a biomechanical parameter and a marker attachment position.

As shown in FIG. 2, the meter interface screen may include a biomechanical parameter list 201 that provides a list of the biomechanical parameters listed above. The biomechanical parameter list 201 may include a selection menu for each biomechanical parameter such that one or more biomechanical parameters may be selected by the measurer.

The measurer interface screen may further include a guide menu for guiding a biomechanical data corresponding to a biomechanical parameter selected from the measurer, that is, an attachment position of the marker.

The guide menu includes a marker display area 202 for displaying a marker to be attached to a human body by modeling a predetermined human shape, and a guide phrase 203 for displaying a guide phrase for each attachment position of the marker. It may include.

The measurer interface screen includes a confirmation button 204 for inputting a biomechanical parameter after selecting the biomechanical parameter list 201 and a cancel button 205 for terminating execution of the measurer interface screen. It may further include.

As such, when the measurer selects at least one biomechanical parameter on the biomechanical parameter list 201 and inputs a confirmation button 204, the selection process for the biomechanical parameter is completed.

In FIG. 1, when the selection process of the biomechanical parameter is completed, guide information on the attachment of the marker is provided according to the biomechanical data corresponding to the biomechanical parameter selected from the measurer (S102).

The guide information on the marker attachment may be provided including a marker position to be attached in order to collect the biomechanical data and a guide phrase describing each position.

The biomechanical data is previously defined through a predetermined clinical experiment, and it is preferable to construct a database that stores not only biomechanical data but also marker attachment positions for each biomechanical parameter.

FIG. 3 is a diagram illustrating an example of a measurement interface screen for guiding marker positions with respect to the front, rear, right side, and left side of the subject.

When the measurer selects the biomechanical parameter through the measurer interface screen of FIG. 2 and inputs a confirmation button 204, the measurer interface can be switched to the measurer interface screen as shown in FIG.

As shown in FIG. 3, it is preferable to provide a marker position guide for each surface by dividing a human body shape into front, rear, left side, and right side as shown in FIG. 3.

The meter interface screen includes a biomechanical parameter list 301 selected by the measurer, a marker position guide 302 for the front surface, a marker position guide 303 for the right side, and a marker position guide 304 for the rear surface. And a marker location guide 305 for the left side. The measurer interface screen is configured based on the marker attachment position for each biomechanical parameter stored in the database.

The measurer interface screen further includes a confirmation button 306 for inputting the marker after completing the attachment of the marker and a print button 307 for hard printing the measurer interface screen providing the marker position guide. can do. The apparatus may further include a cancel button 308 for ending execution of the meter interface screen or moving to the previous screen.

The measurer attaches a marker to each skeletal region of the subject by referring to the marker position guides 302, 303, 304, and 305 of the front, back, right side, and left side of the meter interface screen.

Subsequently, when the completion command for the marker attachment process, for example, the measurer inputs the confirmation button 306 after completing the marker attachment (S103), the position verification of the marker attached to the skeleton of the subject is performed. (S104).

The position verification process of the marker may be performed by detecting a position of the marker attached to the skeleton of the subject by using a predetermined photographing means, and then comparing the detected marker position with the marker position provided through the measurement interface screen. Is done.

The position verifying process of the marker may be performed by comparing the marker position detected by the photographing means with the marker position provided through the measurement interface screen, and a missing state in which the marker is not attached or an error state in which the marker position is out of a predetermined range. Judge.

In the position verification process of the marker, the front, rear, right side, and left side of the subject may be classified, and the position verification for the markers attached to each surface may be sequentially performed. Alternatively, the position verification may be performed at the same time on the marker attached to two or all of the front, rear right side, and left side of the subject.

When the missing state or the error state is detected in the process of verifying the position of the marker (S105), a measurer interface screen informing the marker attachment error is provided (S106).

FIG. 4 is a diagram illustrating an example of an interface screen of a measurer for guiding a missing state or an error state of a marker in a process of verifying a position of a marker attached to a subject.

The screen of the operator interface of FIG. 4 includes a position verification display area 401 for displaying a corresponding surface performing a position verification process among front, rear, right side, and left side of the subject, and the missing state among the markers of the corresponding surface. Alternatively, it may include an error location display area 402 indicating the marker 403 in which an error condition is detected.

The measurer interface screen may further include an error message display area 404 for notifying an omission state or an error state for the marker 403 and displaying various guide messages for requesting reattachment to the measurer.

The measurer interface screen may further include a confirmation button 405 for re-requesting a location verification process after the measurer checks a marker in which a missing state or an error state is detected.

When the position verification process for the marker is completed, biomechanical data is collected by detecting all markers attached to the skeleton of the subject, and biomechanical parameters for diagnosing musculoskeletal disorders are calculated based on the biomechanical data ( S107) (S108). The calculated biomechanical parameters may be calculated and displayed in the form of averages, variances (or standard deviations), maximum values, minimum values, etc. for each parameter, and may be displayed on the time axis by calculating dynamic changes. In addition, by displaying the range of normal persons with respect to the calculated biomechanical parameters, it is possible to determine whether the biomechanical parameters are a disease and to guide the treatment (or prescription) method.

A system configuration for performing the biomechanical data collection method for each biomechanical parameter according to the present invention described above will be described. 5 is a diagram illustrating a configuration of a biomechanical data collection system according to the present invention in a vision system using an indicator.

As shown in FIG. 5, a biomechanical data collection system for each biomechanical parameter according to the present invention may include an indicator 502, a measurer interface unit, a photographing unit 503, a storage unit 505, and a controller 506. Can be.

The marker 502 is attached to a skeletal region and / or a muscle region that matches the anatomical position of the subject in order to collect biomechanical data of the subject, and is a reflective marker or a color marker. Can be used. Color markers may also include black and white markers with certain patterns.

The marker 502 is attached to the human body, namely, the skeletal position of the subject such as the hand, arm, shoulder, pelvis, spine, pelvis, leg, foot, etc. in consideration of biomechanical parameters necessary for diagnosing musculoskeletal disorders.

The measurer interface unit may include an input unit 501 for receiving various commands of the measurer and a display unit 504 for displaying a measurer interface screen for providing an attachment position guide to the marker 502.

The measurer interface unit may provide the user graphic interface means by configuring the input unit 501 and the display unit 504 as an integrated touch pad. That is, all menu environments for biomechanical data collection are provided on a graphic screen, and a measurer command can be input by touching a specific position of the graphic screen.

The storage unit 505 includes a database that stores marker attachment position information for each predefined biomechanical parameter.

The photographing unit 503 is for detecting the position of the marker 502 attached to the skeleton of the subject, and may use any one of an infrared camera or a general camera according to the type of the marker 502.

When the marker 502 is a reflective marker, the photographing unit 503 uses an infrared CCD (Charge Coupled Device) camera or an infrared complementary metal oxide semiconductor (CMOS) camera, and the marker 502 is a color marker. It is preferable to use a CCD camera or a general CMOS camera.

The photographing unit 503 determines a method of photographing the marker 502 attached to the subject to be measured according to the installation form.

One of the installation forms of the photographing unit 503 is installed to photograph only one surface of the front, rear, right side, and left side of the subject. According to this configuration, the subject or the photographing unit 503 moves four times in total. While photographing the marker 502 attached to the corresponding surface one by one of the front, rear, right side, left side of the subject.

Another form of the installation portion of the photographing unit 503 is installed so as to simultaneously photograph the two sides of the front, rear, right side, left side of the subject, according to this configuration, the subject or the photographing unit 503 a total of two times While moving, the marker 502 attached to the corresponding surface may be sequentially photographed by two surfaces of the front, rear, right side, and left side of the subject. For example, it corresponds to a form in which the front and the left side, the rear and the right side can be taken simultaneously.

Another form of the installation of the photographing unit 503 is installed so as to simultaneously photograph all of the front, rear, right side, left side of the subject, according to this configuration, the subject or the photographing unit 503 once Simultaneously, the marker 502 attached to all sides of the subject can be photographed by moving only.

The control unit 506 includes process means for collecting biomechanical data and calculating biomechanical parameters required for diagnosing musculoskeletal disorders based on the collected biomechanical data.

The controller 506 provides the meter interface screen under a command of a meter input through the meter interface unit.

In other words, the controller 506 configures a list of biomechanical parameters on the meter interface screen so that a measurer can select biomechanical parameters, and collects biomechanical data corresponding to the biomechanical parameters selected from the measurer. Guide information on the attachment of the marker 502 may be configured on the measurer interface screen.

Here, the controller 506 may configure the meter interface screen by reading the marker attachment position information corresponding to the biomechanical parameter selected by the measurer based on the marker attachment position information for each biomechanical parameter stored in the database.

The controller 506 photographs the position of the marker 502 attached to the skeleton position of the subject through the photographing unit 503, and then captures the photographed marker based on the marker attachment position provided through the operator interface screen. The location of 502 can be verified.

The controller 506 compares the position of the photographed marker 502 with the marker attachment position provided on the measurement interface screen to determine a missing state in which the marker is not attached or an error state in which the marker position is out of a predetermined range. can do.

The controller 506 may output a predetermined error message through the measurer interface screen when the marker of the missing state or the error state is detected during the position verification of the photographed marker 502. In addition to the error message may be indicated by indicating the indicator of the missing or error state.

According to the system configuration of the present invention, the position of the marker, which is a measurement point of biomechanical data for each biomechanical parameter, is provided so that the measurer can attach the marker more easily.

In particular, the present invention may request confirmation of the measurer by performing position verification on the marker attached by the measurer and notifying an error state when the marker is missing or incorrectly attached.

The biomechanical data collection method for each biomechanical parameter according to the present invention may be implemented in the form of program instructions that may be executed by various computer means and may be recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

1 is a diagram illustrating the entire process of a biomechanical data collection method according to the present invention in a vision system using a marker.

FIG. 2 is a diagram illustrating an example of a screen of an interface for measuring a biomechanical parameter and a marker attachment position.

3 is a diagram illustrating an example of a measurement interface screen for guiding marker positions to be attached to the front, rear, right side, and left side of the subject.

FIG. 4 is a diagram illustrating an example of an interface screen of a measurer for guiding a missing state or an error state of a marker in a process of verifying a position of a marker attached to a subject.

5 is a diagram illustrating a configuration of a biomechanical data collection system according to the present invention in a vision system using an indicator.

<Explanation of symbols for main parts of the drawings>

501: input unit

502: marker

503: the shooting unit

504: display unit

505: storage unit

506: control unit

Claims (25)

In the biomechanical data collection method of a vision system using markers, Selecting at least one biomechanical parameter; And, Providing guidance information for attaching the marker to collect biomechanical data corresponding to the selected biomechanical parameter, Selecting the biomechanical parameters, Executing a meter interface screen including a list of biomechanical parameters according to a command of a measurer, and selecting at least one biomechanical parameter from the list of biomechanical parameters through the meter interface screen; Providing guide information for attaching the marker, Determining the marker attachment position for each of the selected biomechanical parameters, and providing a guide menu for guiding the determined marker attachment position through the measurer interface screen, The guide menu, Marker display area for dividing the human body shape into front, rear, left side, right side by using a model of a predetermined human body and displaying a marker on a corresponding portion of the human body shape corresponding to the determined marker attachment position for each surface. And Biomechanical data collection method for each biomechanical parameter comprising a guide phrase display area for displaying a guide phrase for explaining the attachment position of each marker. delete delete The method of claim 1, The biomechanical parameter list, The degree of bending of the finger, the degree of bending of the arm skeleton, the difference in the height of the shoulders, the degree of rotation of the shoulders, the degree of tilting of the shoulders, the degree of curvature of the spine, the degree of curvature of the spine, the distance between the ears and the shoulders Biomechanical parameters of at least one of height difference, degree of rotation of pelvis, degree of pelvic hardness, degree of flexion of lower extremity bone, angle between femur and lower femur, angle of apex and sole of middle bone, angle of ankle and knee joint, degree of flexion of toe Biomechanical data collection method for each biomechanical parameter comprising a. delete delete delete The method of claim 1, Determining the marker attachment position for each biomechanical parameter, Construct a database to store marker attachment positions for each predefined biomechanical parameter, And if the biomechanical parameter is selected, reading the marker attachment position of the parameter from the database. The method of claim 1, Providing guide information for attaching the marker to collect biomechanical data corresponding to the selected biomechanical parameter, Attaching the marker to the skeletal region of the subject by the measurer by referring to the guide menu; Performing the marker position verification attached to the subject under the measurer command when the marker is attached. Biomechanical data collection method for each biomechanical parameter further comprising a. The method of claim 9, Performing the marker position verification attached to the subject, Detecting the position of the attached marker using a predetermined photographing means; Verifying the position of the detected marker based on the marker attachment position provided through the guide menu; Biomechanical data collection method for each biomechanical parameter comprising a. The method of claim 10, Performing the marker position verification attached to the subject, Comparing a marker attachment position provided through the guide menu with a position of the detected marker to determine a missing state in which the marker is not attached or an error state in which the marker position is out of a predetermined range; Biomechanical data collection method for each biomechanical parameter further comprising a. The method of claim 11, Performing the marker position verification attached to the subject, Outputting a predetermined error message when the missing state or error state is detected; Biomechanical data collection method for each biomechanical parameter further comprising a. The method of claim 12, The outputting of the error message may include: Biomechanical data collection method for each biomechanical parameter characterized in that the step of indicating the marker through which the missing or error state is detected along with the error message through the guide menu. The method of claim 10, Detecting the position of the attached marker using a predetermined photographing means, Determining an installation form of the photographing means; Photographing the position of the marker attached to the front, rear, left side, and right side of the subject according to the installation form of the photographing means; Biomechanical data collection method for each biomechanical parameter comprising a. The method of claim 14, The installation form of the photographing means is, The first form is installed to photograph one side of the front, rear, left side, right side of the subject, or the second form is installed to simultaneously shoot two sides of the front, rear, left side, right side, front, rear, Biomechanical data collection method for each biomechanical parameter, characterized in that any one of the third form provided to simultaneously photograph the four sides of the left side, the right side. The method of claim 15, According to the installation form of the photographing means for photographing the position of the marker attached to the front, rear, left side, right side of the subject, In the case where the photographing means is the first type, photographing is sequentially performed on one surface of the front, rear, left side, and right side of the subject, When the photographing means is of the second type, photographing is sequentially performed on two surfaces of the front, rear, left side, and right side of the subject; Simultaneously photographing the entire front, rear, left side, and right side of the subject when the photographing means is of the third form; Biomechanical data collection method for each biomechanical parameter comprising a. A computer-readable recording medium in which a program for executing the method of any one of claims 1, 4, and 8 to 16 is recorded. A system for collecting biomechanical data necessary for diagnosing musculoskeletal disorders of a subject by using a marker, A measurer interface for the measurer to select at least one biomechanical parameter; And, And a controller configured to provide guide information for attaching the marker through the measurer interface to collect biomechanical data corresponding to the selected biomechanical parameter. The control unit, Providing a measurer interface screen including a list of biomechanical parameters through the measurer interface unit, when the measurer selects at least one biomechanical parameter from the list of biomechanical parameters, the marker attachment position is determined according to the selected biomechanical parameters, and then the determined marker is attached. Provide a guide menu for guiding the location through the meter interface screen, The guide menu, Marker display area for dividing the human body shape into front, rear, left side, right side by using a model of a predetermined human body and displaying a marker on a corresponding portion of the human body shape corresponding to the determined marker attachment position for each surface. And Biomechanical parameter-specific biomechanical data collection system comprising a guide phrase display area for displaying a guide phrase for explaining the attachment position of each marker. The method of claim 18, The measurer interface unit, An input unit for receiving the measurer command; Biomechanical parameter-specific biomechanical data collection system comprising a display unit for displaying the guide information for the marker attachment. The method of claim 18, Further comprising a storage unit for storing the marker attachment position for each predefined biomechanical parameter, The control unit, The biomechanical data collection system for each biomechanical parameter, when the biomechanical parameter is selected from the measurer, guide information on the marker attachment is provided based on the marker attachment position of the parameter stored in the storage unit. The method of claim 20, And a photographing unit configured to detect a position of the marker attached to the subject after attaching the marker to the skeletal region of the subject based on the guide information on the marker attachment. The control unit, Biomechanical data collection system for each biomechanical parameter characterized in that for verifying the marker position of the subject detected through the photographing unit based on the marker attachment position for each biomechanical parameter stored in the storage unit. The method of claim 21, The control unit, The detected marker position is compared with the marker attachment position stored in the storage unit to detect a missing state in which the marker is not attached or an error state in which the marker position is out of a predetermined range, and a predetermined error message for the missing state or error state. Biomechanical data collection system for each biomechanical parameter characterized in that it outputs. The method of claim 22, The control unit, And a marker corresponding to the missing state or the error state together with the error message. The method of claim 21, The marker is, A biomechanical parameter-specific biomechanical data collection system comprising using a reflective marker or a color marker. The method of claim 24, The photographing unit, When the marker is a reflection marker, an infrared CCD (Charge Coupled Device) camera or an infrared complementary metal oxide semiconductor (CMOS) camera is used, and when the marker is a color marker, a general CCD camera or a general CMOS camera is used. Biomechanical data collection system for each biomechanical parameter.

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