JP2010273756A - Temporomandibular arthrosis diagnosis support system and apparatus equipped with pain detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temporomandibular arthrosis diagnosis support system equipped with a pain detector and a temporomandibular arthrosis diagnosis support device equipped with the pain detector, which allow the relationship between the trajectory of a mouth opening and closing motion and a position of pain, and the position of maximum pain to be visually understood by combining the result of the trajectory of the mouth opening and closing motion and the result of pain measurement. <P>SOLUTION: The temporomandibular arthrosis diagnosis support system equipped with a pain detector and the temporomandibular arthrosis diagnosis support apparatus equipped with the pain detector are developed by combining: lower anterior tooth motion tracking means for obtaining the whole trajectory of the mouth opening and closing motion; means for combining the pain occurring position and the maximum pain position obtained by a pain measuring device with the whole trajectory of the mouth opening and closing motion, and analyzing and displaying the results; and temporomandibular joint noise analysis means for detecting a frame image in which temporomandibular joint noise in the mouth opening and closing motion is generated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a temporomandibular disorder diagnosis support system and apparatus having a pain detector, in particular, a mandibular and mandibular anterior tooth movement tracking system having a pain detector used for diagnosis of temporomandibular disorders, and a mandibular and mandibular anterior teeth having a pain detector The present invention relates to a club movement tracking device.

Temporomandibular disorder is a disease with three symptoms of “temporomandibular joint noise”, “opening disorder (movement disorder)”, and “pain”.
Today, it is said that patients with temporomandibular disorders tend to increase.
Despite the many patients with temporomandibular disorders, there is no diagnostic device for temporomandibular disorders. However, devices for recording and drawing jaw movements are commercially available, and it is possible to diagnose jaw movements using this device. In this apparatus, a large measurement instrument is attached to a patient, and a patient is directly attached to an anterior jaw of the patient's lower jaw, and measurement is performed from the outside.
Therefore, if a diagnostic device dedicated to temporomandibular disorders that is inexpensive and less burdensome for patients is developed and put on the market, dentists can correctly diagnose temporomandibular disorders and determine the therapeutic effect. become able to do.

In order to diagnose temporomandibular disorders, it is necessary to analyze the following three symptoms.
1. Mandibular movement disorder Opening and closing mouth movements are recorded by photographing the upper and lower jaw front teeth using a camera, the area where the lower jaw front teeth are located is designated as a template, and image matching processing is performed to specify the mandibular front teeth part from the opening to the mouth Measure the movement trajectory, and display the opening degree and the amount of left-right displacement.
2. Temporomandibular joint noise measurement Temporomandibular joint noise is measured using at least one of a stethoscope, a microphone, and a bone conduction microphone, and waveform analysis is performed on the noise.
3. Quantitative evaluation of pain VAS (Visual Analog Scale) method is used.

  Among the above three symptoms, symptom 1 and symptom 2 were previously filed as a patent application for “mandibular anterior tooth movement tracking system, mandibular anterior tooth movement tracking apparatus and temporomandibular joint noise analyzer” (see Japanese Patent Application No. 2008-319959). did.

  The present invention executes a detection method that quantifies the pain of the remaining three symptoms among the above three symptoms, and thereby provides a temporomandibular disorder diagnosis support system and device equipped with a pain detector. The mandibular and mandibular anterior tooth movement tracking system with the device and the mandibular and mandibular anterior tooth movement tracking device with the pain detector ".

Conventionally, pain measurement of the temporomandibular joint has been performed by analog measurement (subjectivity of the patient).
For example, Japanese Patent Laid-Open No. 2005-152222 (Patent Document 1) states that “a display unit that can display a measurement result, and an operation unit that includes an operation member that can be displaced according to the magnitude of pain of the subject. A calculation unit that quantifies the magnitude of pain according to the amount of displacement of the operation member; and a storage unit that stores data for generating symbol images of a plurality of patterns according to the magnitude of pain. The display means quantifies and displays the magnitude of pain in accordance with the amount of displacement of the operation member, and a symbol corresponding to the magnitude of pain generated based on the data stored in the storage means The gist of the pain measuring instrument, which is configured to display images, is easy to understand, objectively displays the magnitude of pain in the subject, and can accurately convey it to others. A pain meter is provided.

However, in the pain measuring instrument of this patent document 1, the magnitude of the pain is divided into 10 equal parts from 0 to 10, and the face scale with the changed facial expression is made to correspond to each, so that the patient can measure the magnitude of the pain. As the patient is remembering the face scale of the previous facial expression in the daily observation of the patient's pain, it is dragged to this face scale. It is difficult to measure accurate pain.

  Japanese Patent Laid-Open No. 2007-130034 (Patent Document 2) discloses a pain measurement device including an electrode worn by a person to be measured and a stimulation current generation unit that generates a stimulation current supplied to the electrode. Based on the stimulation current applied to the person, the pain measured by the person being measured is measured. In this pain measurement apparatus, when the stimulation current gradually increases the current value of the stimulation current from 0, The Aβ fiber is stimulated before the Aδ fiber and the C fiber is not stimulated, and the degree of pain felt by the subject is measured over a wide range by electrical stimulation without pain.

  However, in order to perform painless electrical stimulation, a complicated and expensive stimulation current generator is required, and is therefore not practical.

JP2005-152222 JP2007-130034

  The purpose of the present invention is to visually understand the relationship between the opening / closing movement trajectory and the pain occurrence position and the maximum pain position during the opening / closing movement by combining the opening / closing movement trajectory result and the pain measurement result. Provided is a temporomandibular disorder diagnosis support system and apparatus having a practical pain detector, in particular, a mandibular and mandibular anterior tooth movement tracking system having a pain detector, and a mandibular and mandibular anterior tooth movement tracking apparatus having a pain detector It is something to be done.

  The temporomandibular disorder diagnosis support system and apparatus including the pain detector of the present invention, in particular, the mandibular anterior tooth movement tracking system including the pain detector is disclosed in Japanese Patent Application No. 2008-319959, the mandibular anterior tooth movement tracking system and the present invention. The pain measurement device used in the invention is combined.

That is, the temporomandibular disorder diagnosis support system comprising the pain detector according to claim 1 acquires a trajectory of the opening / closing movement of the subject and includes a pain measuring device, and the data on the acquired all trajectories In addition, the pain occurrence position and the degree of pain of the subject obtained by the pain measuring device are quantitatively measured and analyzed, and can be displayed in an audiovisual manner in synchronization with the opening and closing movement. To do.
A temporomandibular disorder diagnosis support system comprising the pain detector according to claim 2 executes means for acquiring a trajectory of the opening / closing movement of the subject by a temporomandibular joint tracking system.
A temporomandibular disorder diagnosis support system comprising the pain detector according to claim 3 executes the temporomandibular joint movement tracking system by a lower anterior tooth movement tracking system.
A temporomandibular disorder diagnosis support system comprising the pain detector according to claim 4 executes the temporomandibular joint movement tracking system by a mandibular movement tracking system.

A temporomandibular disorder diagnosis support apparatus comprising the pain detector according to claim 5 includes means for acquiring a trajectory of the opening / closing movement of the subject and a pain measuring device, and the data on the acquired entire trajectory And means for quantitatively measuring and analyzing the pain occurrence position and the degree of pain of the subject obtained by the pain measuring instrument and displaying them in an audiovisual manner in synchronization with the opening and closing movement. And
A temporomandibular disorder diagnosis support apparatus comprising the pain detector according to claim 6 executes means for acquiring a trajectory of the opening / closing movement of the subject by a temporomandibular joint tracking apparatus.
In a temporomandibular disorder diagnosis support apparatus including the pain detector according to claim 7, the temporomandibular joint movement tracking apparatus is implemented by a mandibular anterior tooth movement tracking apparatus.
In a temporomandibular disorder diagnosis support apparatus including the pain detector according to claim 8, the temporomandibular joint movement tracking apparatus is implemented by a mandibular movement tracking apparatus.

A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 9, when executing the mandibular anterior tooth movement tracking system, the subject is exposed to the open / close mouth in a state where the upper and lower jaw anterior teeth of the subject are exposed. Make a movement, take a moving image with the camera to open and close the opening and closing movement,
Storing the captured moving image in a recording means of a computer;
The moving image stored in the recording means is converted into a still image for each frame, and from the converted still image, an image in which the upper and lower jaw front teeth are slightly separated is used as a start image from the recording means of the computer. Read out, display on the image display means, mark the region of interest in the anterior part of the lower jaw where you want to check the locus of the start image,
In setting a trajectory template using the start image,
A region of interest (ROI) in a range centered on the marked point is set in advance, and the set region of interest is extracted as a first template,
An image matching process is performed on the next second frame image using the extracted first template,
Store the coordinates of the marked point showing the maximum matching in the second frame image, and perform position measurement,
Cutting out the region of interest in the same range as the first template around the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image;
This is used as a second template, and image matching processing is performed between the second template and the third frame image.
By repeating such processing, template creation and image matching processing are performed until the last still image,
Measure the position of the marked point of the region of interest for all still images,
Obtaining the entire locus of the opening and closing movement from all of the position coordinates of the marked point subjected to image matching processing obtained from each still image,
A pain measuring device is provided, and the pain measuring position of the subject and the degree of pain can be measured and analyzed and displayed by the pain measuring device.

  A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 10 causes the subject to perform an opening and closing movement in a state in which the upper and lower jaw anterior teeth of the subject are exposed. A moving image is captured by a camera, the captured moving image is stored in a recording unit of a computer, the moving image stored in the recording unit is converted into a still image for each frame, and the converted still image Among them, an image with the upper and lower jaw anterior teeth slightly separated is read out from the computer recording means as a start image, displayed on the image display means, and the region of interest in the lower anterior teeth where the locus is to be confirmed is marked in the start image. In setting a trajectory template using the start image, a region of interest (ROI) in a range centered on the marked point is set in advance, and the set region of interest is set. Is extracted as a first template, image matching processing is performed on the next second frame image using the extracted first template, and the second frame image is marked to indicate maximum matching The coordinates of the point are stored and the position is measured, and the region of interest within the same range as the first template is centered on the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image. Cut out and use this as the second template, perform image matching processing with the second template and the third frame image, repeat this processing to perform template creation and image matching processing up to the last still image, The position of the marked point of the region of interest for the still image is measured, and the image matching process obtained from each still image is processed. The entire locus of the opening and closing movement is obtained from all the position coordinates of the registered points, and the pain generation position, the maximum pain position, and the degree of pain are synchronously displayed on the data of the obtained all locus. To be able to.

  A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 11, wherein a region of interest of the anterior mandibular portion for which a trajectory is to be confirmed in the still image is represented by an incision corner that is an adjacent surface of the mandibular central incisor, That is, it is set as one point of the middle point of the lower anterior teeth.

A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 12, wherein the analysis display means displays the type of pain, the range of pain, and the degree of pain with color identification notation, language notation, size notation, level By using notation means such as display and graphic notation, it is possible to display visually using a schematic diagram of the affected area.
The mandibular anterior tooth movement tracking system including the pain detector according to claim 13 uses notation means such as color identification notation, language notation, level notation, graphic notation, and the like as the synchronous display method.

  A mandibular anterior tooth movement tracking system comprising the pain detector of the present invention according to claim 14, a camera that captures a moving image of the opening and closing movement of the subject's upper and lower jaw anterior teeth, and the opening and closing movement of the subject In a computer recording means for storing a sound collection device for collecting temporomandibular joint noise, an A / D converter, a moving image from a camera and sound collection from a sound collection device as A / D converted data, With the subject's upper and lower jaw front teeth exposed, and with the sound collector applied to the subject's temporomandibular joint, the subject is caused to perform opening / closing movement, and a moving image of the opening / closing movement Is recorded by the camera, and the captured moving image is stored in the computer recording means, and at the same time, the temporomandibular joint noise of the subject during the opening / closing movement is sampled, and the computer recording means is passed through the A / D converter. The data is stored in the A sound collecting data in synchronization and stored in the recording means of the computer, characterized in that may sense frame image generated TMJ noise during off opening movement.

The mandibular anterior tooth movement tracking system including the pain detector according to claim 15 can visually display the degree of opening, temporomandibular joint noise, and pain associated with treatment.
The mandibular anterior tooth movement tracking system including the pain detector according to claim 16 further includes guidance display means for guiding and displaying the opening / closing movement of the subject by animation, light, sound, or the like.

A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 17, wherein the opening / closing movement of the opening / closing opening is guided to the subject and the upper / lower jaw anterior teeth of the subject are exposed. And the opening / closing movement is displayed so as to be comparable with a moving image taken by the camera. (Old 9)
A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 18 uses the pain measuring device as a measuring device capable of sensing the strength and / or displacement of a hand grip.
Further, the mandibular anterior tooth movement tracking system comprising the pain detector according to claim 19, wherein the pain measuring device includes a scale indicating the magnitude of pain and an operation member that moves along the scale. This is a sensitive measuring instrument.
Further, in the mandibular anterior tooth movement tracking system comprising the pain detector according to claim 20, the measuring device is pneumatic, hydraulic, piezoelectric, spring, or variable in which a stroke is connected to a sliding terminal. Resistor.

The mandibular anterior tooth movement tracking system comprising the pain detector according to claim 21 is a deadman type switch capable of measuring only the presence or absence of pain.
The mandibular anterior tooth movement tracking system comprising the pain detector according to claim 22 allows a pain range to be specified by a computer input device.
A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 23 enables simultaneous measurement of pain measurement and opening / closing movement.

The mandibular anterior tooth movement tracking system comprising the pain detector according to claim 24 is capable of synthesizing and displaying data by separately measuring pain and opening / closing movements by synchronizing with the guidance display means. To do.
A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 25 captures facial expressions of the subject with a camera that tracks the opening and closing movement of the anterior jaw of the lower jaw, and from a moving image after measuring the opening and closing movement. The degree of pain, the pain occurrence position, and the maximum pain position are quantified, and the degree of pain, the pain occurrence position, and the maximum pain position are input on the opening / closing opening movement trajectory data, and can be synthesized and displayed.

  A mandibular anterior tooth movement tracking device comprising the pain detector according to claim 26 is configured to open and close the subject with the opening and closing of the upper and lower jaw anterior teeth in the state where the subject's upper and lower jaw anterior teeth are exposed. A means for capturing the opening and closing movement as a moving image by a camera; a means for storing the captured moving image in a recording means of a computer; and a moving image stored in the recording means of the computer. Means for converting into a still image for each frame, and means for reading out from the recording means of the computer as a start image an image in which the front and lower jaw front teeth are slightly separated from the converted still image and displaying them on the image display means And a means for marking a region of interest in the anterior part of the lower jaw where the locus is to be confirmed in the displayed start image, and a template of the locus is set using the start image. Is performed by using means for presetting a region of interest (ROI) in a range centered on the marked point, means for extracting the set region of interest as a first template, and the extracted first template. Means for performing image matching processing on the next second frame image, means for measuring the position by storing the coordinates of the marked point showing the maximum matching in the second frame image, Means for cutting out a region of interest in the same range as the first template around the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image, and using this as a second template; A means for performing an image matching process between the second template and the third frame image, and a template creation and an image map by repeating such a process. Means for measuring the position of the marked point of the region of interest for all the still images, and all the position coordinates of the marked point subjected to image matching processing obtained from each still image. And a pain measuring device that quantitatively measures and analyzes and displays pain symptoms of the subject.

  A mandibular anterior tooth movement tracking device comprising the pain detector according to claim 27 causes the subject to perform an opening / closing movement in a state in which the subject's upper and lower jaw anterior teeth are exposed, and to perform the opening / closing movement. Means for capturing a moving image by a camera; means for storing the captured moving image in a recording means of a computer; means for converting the moving image stored in the recording means of the computer into a still image for each frame; Of the converted still image, an image in which the upper and lower jaw anterior teeth are slightly separated is read as a start image from a recording means of a computer and displayed on an image display means; and the displayed start image Of these, the means for marking the region of interest in the anterior part of the lower jaw where the trajectory is to be confirmed, and when setting the trajectory template using the start image, the marked point is centered. A means for presetting a region of interest (ROI) in advance, a means for extracting the set region of interest as a first template, and a second frame image using the extracted first template Means for performing image matching processing, means for storing the coordinates of the marked point showing the maximum matching in the second frame image, and position matching processing of the second frame image. A region of interest in the same range as the first template around the position of the marked point indicating the maximum matching of the obtained image, and using this as a second template; the second template and the third frame image; By means of image matching processing in the above, and by repeating such processing, template creation and image matching processing are performed up to the last still image. Means for measuring the position of the marked point of the region of interest with respect to the stationary image; means for determining the entire locus of the opening and closing movement from all the position coordinates of the marked point subjected to image matching processing obtained from each still image; Means for synchronously displaying the pain occurrence position, the maximum pain position, and the degree of pain on the data of all the obtained trajectories so as to visually identify them.

  The lower jaw front tooth part movement tracking device comprising the pain detector according to claim 28, wherein the region of interest of the lower jaw front tooth part for which a locus is to be confirmed in the still image is a cut edge corner that is an adjacent surface of the lower middle incisor, That is, it is set as one point of the middle point of the lower anterior teeth.

  30. A mandibular anterior tooth movement tracking device comprising the pain detector according to claim 29, and a camera that captures a moving image of a subject's opening and closing movement and a temporomandibular joint noise during the opening and closing movement of the subject. A sound recording device, an A / D converter, and a computer recording means for storing the moving image from the camera and the sound collection from the sound collection device as A / D converted data, and the upper and lower jaws of the subject With the front teeth exposed and the sound collector applied to the subject's temporomandibular joint, the subject is caused to perform the opening and closing movement, and a moving image of the opening and closing movement is taken by the camera. Means for storing the photographed moving image in a recording means of a computer, simultaneously means for collecting the temporomandibular joint noise of the subject during the opening and closing movement, and the A / D converter A means for storing data in the computer recording means, and the temporomandibular joint miscellaneous By synchronizing a still image and voice pickup data of the event stored in the recording means of the computer, and further comprising a means for detecting the frame image generated TMJ noise during off opening movement.

  A mandibular movement tracking system comprising the pain detector according to claim 30 is a mark that serves as a reference point at any position above the upper jaw of the midline passing through the lower nose of the subject when performing the mandibular movement tracking method. And a tracking mark for tracking the mandibular movement is attached to the mental part of the subject, the subject is caused to perform the opening and closing movement, a moving image of each mark by the opening and closing movement is taken by a camera, A captured moving image is stored in a recording unit of a computer, a still image for each frame is extracted from the moving image stored in the recording unit, and left and right from a substantially center point of the tracking mark of the extracted still image. A specified length line is drawn, one point of the drawn line is set as a tracking point, and a matching area is set based on the density distribution curve in the drawn line. Image matching processing is performed on all images based on the reference density distribution curve obtained from the image, and thus the locus of the tracking point is obtained from the initial image as a full locus for the still image of all frames, and pain measurement is performed. A pain meter is provided, and the pain measuring position and the degree of pain of the subject can be quantitatively measured and analyzed and displayed by the pain measuring device.

  A mandibular movement tracking system comprising the pain detector according to claim 31 is provided with a mark as a reference point at an arbitrary position above the upper jaw of the midline passing through the subject's lower nose and A tracking mark for tracking the mandibular movement is attached to the part, and the subject is caused to perform the opening and closing movement, a moving image of each mark by the opening and closing movement is photographed by a camera, and the captured moving image is captured by a computer. A still image for each frame is extracted from the moving image stored in the recording means, and a line having a specified length is drawn to the left and right from the substantially center point of the tracking mark of the extracted still image. Then, a certain point of the drawn line is set as a tracking point, a matching area is set based on the density distribution curve in the drawn line, and a reference density distribution curve obtained from the initial image is set in the setting area. Tread Thus, image matching processing is performed on all images, and the locus of the tracking point is obtained from the initial image as a whole locus with respect to the still image of all frames, and the pain occurrence position is added to the data of the obtained all locus. The maximum pain position and the degree of pain can be synchronously displayed so as to be visually recognized.

  The mandibular movement tracking system including the pain detector according to claim 32 sets an arbitrary position above the upper jaw of the midline passing through the lower nose point of the subject as the lower nose point.

  A mandibular movement tracking device comprising the pain detector according to claim 33 is a reference point provided at an arbitrary position above the upper jaw of the midline passing through the lower nose of the subject in performing the mandibular movement tracking device. And a tracking mark for tracking the mandibular movement provided in the mental part of the subject, a camera for causing the subject to perform opening and closing movements, and shooting a moving image of each mark by the opening and closing movements, , Means for storing a moving image taken by the camera in a recording means of a computer, extracting a still image for each frame from the moving image stored in the recording means, and the tracking mark of the extracted still image A means to draw a line of specified length to the left and right from the approximate center point, and one point of the drawn line as a tracking point, and a matching region is set based on the density distribution curve in the drawn line Means for performing image matching processing on all images based on the reference density distribution curve obtained for the initial image within the set region, and thus, the tracking point trajectory from the initial image is stationary for all frames. A means for obtaining an image as a whole trajectory, and a means for providing a pain measuring device and quantitatively measuring and analyzing the pain occurrence position and the degree of pain of the subject by the pain measuring device. It is characterized by.

  A mandibular movement tracking device comprising the pain detector according to claim 34 is provided with a mark serving as a reference point provided at an arbitrary position above the upper jaw of the median line passing through the lower nose point of the subject and the subject's A tracking mark for tracking the mandibular movement provided in the mental section, a camera for causing the subject to perform the opening and closing movement, and shooting a moving image of each mark by the opening and closing movement, and a video shot by the camera Means for storing the image in the recording means of the computer, and extracting a still image for each frame from the moving image stored in the recording means, and specifying the left and right from the substantially center point of the tracking mark of the extracted still image Means for drawing a line of length, means for setting one point of the drawn line as a tracking point, and further setting a matching area based on a density distribution curve in the drawn line, Means for performing image matching processing on all images based on the reference density distribution curve obtained for the initial image, and thus means for obtaining the tracking point trajectory from the initial image as a full trajectory for all frames of still images And means for synchronously displaying the pain occurrence position, the maximum pain position, and the degree of pain on the data of all the obtained trajectories so as to be visually recognized.

  In the mandibular movement tracking device provided with the pain detector according to claim 35, an arbitrary position above the upper jaw of the midline passing through the subject's lower nose is defined as the lower nose.

  A mandibular movement tracking system comprising the pain detector according to claim 36, the mark serving as a reference point provided at an arbitrary position above the upper jaw of the median line passing through the subject's lower nose and the subject's A tracking mark for tracking the mandibular movement provided in the mental section, a camera that causes the subject to perform opening and closing movements, shooting a moving image of both marks by the opening and closing movement, and during the opening and closing movement of the subject A sound collection device for collecting the temporomandibular joint noise, an A / D converter, and a computer recording means for storing the moving image from the camera and the sound collection from the sound collection device as A / D converted data, With the sound collector applied to the subject's temporomandibular joint, the subject is caused to perform opening / closing movement, a moving image of the opening / closing movement is captured by a camera, and the captured moving image is captured by a computer. The subject is stored in the recording means, and at the same time opening and closing movement The temporomandibular joint noise is sampled, the data is stored in the computer recording means via the A / D converter, the still image at the time of the temporomandibular joint noise occurrence and the collected sound data are synchronized and stored in the computer recording means, and opened and closed A frame image in which temporomandibular joint noise is generated during mouth movement can be detected.

  A mandibular movement tracking device comprising the pain detector according to claim 37 is provided with a mark serving as a reference point provided at an arbitrary position above the upper jaw of the median line passing through the lower nose point of the subject and the subject's A tracking mark for tracking the mandibular movement provided in the mental section, a camera that causes the subject to perform opening and closing movements, shooting a moving image of both marks by the opening and closing movement, and during the opening and closing movement of the subject A sound collection device for collecting the temporomandibular joint noise, an A / D converter, and a computer recording means for storing the moving image from the camera and the sound collection from the sound collection device as A / D converted data A means for causing the subject to perform opening / closing movement with the sound collector applied to the subject's temporomandibular joint, and taking a moving image of the opening / closing movement with a camera, and the captured moving image Means for storing the information in a computer recording means, and at the same time opening and closing Means for collecting the temporomandibular joint noise of the subject during movement; means for storing data in the computer recording means via the A / D converter; and a still image and sound collection data when the temporomandibular joint noise is generated. It further comprises means for synchronizing and storing in a recording means of a computer and detecting a frame image in which temporomandibular joint noise has occurred during opening and closing movements.

In the mandibular movement tracking system including the pain detector according to claim 38, the tracking mark is directly provided at one point of the chin portion of the subject.
In the mandibular movement tracking device including the pain detector according to claim 39, the tracking mark is directly provided at one point of the chin portion of the subject.

A mandibular movement tracking system comprising the pain detector according to claim 40 is configured such that a genital cap is provided on a genital portion of a subject, and the tracking mark is attached on a midline near the tip of the genital cap.
A mandibular movement tracking device comprising the pain detector according to claim 41 is provided with a mental cap in the genital area of the subject, and the tracking mark is attached on the midline near the distal end of the genital cap.

According to the diagnostic information obtained from the quantitative measurement of pain by the mandibular anterior tooth movement tracking device provided with the pain detector of the present invention described above,
1. By simultaneously performing the opening / closing movement and the pain measurement, it is possible to measure the pain generation position and the maximum pain position during the opening / closing movement.
2. By creating a “pain map” representing the type of pain, the range of pain, and the degree of pain, the treatment process can be visually explained to the subject.
3. A change in the degree of pain can be obtained as the treatment progresses, and the treatment progress (treatment status) is accurately explained to the subject by combining the results of the aperture measurement and temporomandibular joint noise (frequency / power) measurement. be able to.
4). The prognosis of temporomandibular disorders can be estimated to some extent from the measurement of the type of pain, pain range, and degree of pain at the first visit.
5). As an application to general dental treatment, instead of the dentist saying "Please raise your hand if it hurts" until now, use this device as a means of informing the doctor of the degree of pain audiovisually Can do.

FIG. 1 is an explanatory view showing a configuration of a mandibular anterior tooth movement tracking system including a pain detector of the present invention. FIG. 2 is a circuit diagram showing a configuration of a mandibular anterior tooth movement tracking device including the pain detector of the present invention. FIG. 3 is an explanatory diagram showing the relationship between the locus of the opening and closing movement and the location where pain occurs. FIG. 4 is an explanatory diagram showing a pain map for displaying a result of pain diagnosis performed by the mandibular anterior tooth movement tracking device including the pain detector of the present invention. FIG. 5 is an explanatory diagram showing an example of observing the progress of treatment using a mandibular anterior tooth movement tracking device equipped with the pain detector of the present invention. FIG. 6 is an explanatory diagram showing a state of animation guidance and VAS method level display for facilitating pain observation by the mandibular anterior tooth movement tracking device equipped with the pain detector of the present invention. FIG. 7 is an explanatory view showing a pain map formed by the mandibular anterior tooth movement tracking device provided with the pain detector of the present invention. FIG. 8 (a) is an explanatory view showing a state of a certain graphic mark provided on the mental part of the subject in the closed state. FIG. 8 (b) is an explanatory view showing a state in which a certain graphic mark provided in the mental part of the subject in the middle of opening is slightly deformed. FIG. 8C is an explanatory diagram showing a state in which a certain graphic mark provided on the chin portion of the subject in the maximum opening state is deformed into an elliptical shape. FIG. 9 is an explanatory diagram showing movement of the opening / closing opening movement obtained by the mandibular movement tracking system with a graphic mark. FIG. 10 is an explanatory diagram showing a state in which the density distribution curve does not change even when a certain graphic mark provided on the mental part of the subject is deformed into an elliptical shape. FIG. 11A is an explanatory diagram showing a state of image tracking. FIG. 11B is also an explanatory diagram showing a state of image tracking. FIG. 12 is an explanatory diagram showing that only a certain figure to be subjected to image matching processing has been extracted. FIG. 13A is an explanatory diagram showing a process of acquiring a movement of a certain figure obtained by the mandibular movement tracking system. FIG. 13B is an explanatory diagram showing a state in which a trace of a certain figure obtained by the mandibular movement tracking system is acquired. FIG. 14 is an explanatory diagram showing locations where the upper jaw reference point and the lower jaw tracking point are installed. FIG. 15 is a perspective view showing a state in which the chin cap is attached to the lower jaw.

As shown in FIG. 1, the mandibular anterior tooth movement tracking device provided with the pain detector of the present invention is provided with an imaging device, for example, a camera 2 obliquely in front of a subject 1, and the camera 2 is connected to a control box 3. The control box 3 is connected with microphones 4 and 5 as sound collection devices for temporomandibular joint noise, a pain measuring device 6, and a display device such as a personal computer 7.
The pain measuring device 6 has a variable pressing type configuration using a variable resistor, but may be a variable pneumatic type, a hydraulic type, a piezoelectric element type, or a spring type.

  As shown in FIG. 2, the control box 3 connects three sets of an amplifier 11, a gain controller 12, and a changeover switch 13 that are connected in series, and is connected to the controller 15 via the A / D converter 14. The controller 15 is connected to the memory 16 and is also connected to the imaging device 2 and the display device 7, and is further connected to the gain controller 12.

  In the mandibular anterior tooth movement tracking device provided with the pain detector of the present invention connected in this way, the trajectory of the opening / closing movement of the subject is acquired using the imaging device 2 as shown in Japanese Patent Application No. 2008-319959. At the same time, the pain generation position and the maximum pain position during the opening / closing movement are measured using the pain measuring device 6, and the pain generation position and the maximum pain position are displayed as shown in FIG.

That is, as shown in FIG. 2, the imaging device 2 supplies an image signal directly to the display device 7, and the display device 7 shows the signal representing the degree of opening in the two stages of FIG. 5. Is amplified by an amplifier 11, passed through a gain controller (Gain control) 12 and a changeover switch 13, and then A / D converted by an A / D converter 14 through a controller 15. The waveform is shaped and displayed as a pain measurement result (see the top row in FIG. 5).
The data A / D converted by the A / D converter 14 is also supplied to the memory 16 and stored therein.
A mandibular anterior tooth movement tracking system including a pain detector is configured by combining the results of the imaging device thus obtained and the results of the pain measuring device.

The pain measuring device 6 is provided with means for outputting an electrical signal generated by a variable resistance or the like. For example, a structure such as a deadman switch or a grip gripping type grip grip is used.
That is, the pain measuring device 6 is a linear slide bar type with a spring that can be operated with one hand, can be operated with one hand, and returns to the 0 position by the spring when the finger is released. A type that can be placed (size that can be placed on the subject's lap and handled with both hands), a linear slide bar, a rotary volume type or a deadman type switch, etc. Can be adopted.

For this pain measurement, instruct the subject to adjust the grip strength according to the pain strength and adjust the grip strength while looking at the scroll bar on the display. Is the degree to which it turns into pain. In other words, give the patient a switch, press it when it hurts, and display on the display of the device how much it hurts with a numerical value and a bar, and change the degree of pain felt by the patient being treated Can be observed. In addition, it is possible to audibly notify the doctor such that an alarm sounds when the patient's pain level exceeds a certain level.
The pain level obtained in this way is shown in the uppermost part of FIG.

In order to collect temporomandibular joint noise, for example, as shown in FIG. 2, bone conduction microphones 4 and 5 are connected to the amplifier 11, the gain controller 12 and the changeover switch 13 connected in series. The temporomandibular joint noise converted into an electrical signal by the bone conduction microphones 4 and 5 is amplified by the amplifier 11 and then A / D converted by the A / D converter 14 after passing through the gain controller 12 and the changeover switch 13. The obtained data is supplied to the controller 15 for waveform shaping, displayed on the display device 7 as a pain measurement result, and recorded and stored in the memory 16.
The temporomandibular joint noise frequency and the degree of temporomandibular joint noise obtained in this way are shown in the lower two stages of FIG.

  For detection of temporomandibular joint noise, in the present invention, the mandibular anterior teeth described in "Mandibular anterior tooth movement tracking system, mandibular anterior tooth movement tracking apparatus and temporomandibular joint noise analysis apparatus" of Japanese Patent Application No. 2008-319959. The frame images with temporomandibular joint noise during opening and closing movements are detected by synchronously storing still image and sound collection data when temporomandibular joint noise is generated, obtained by using the head movement tracking device and temporomandibular joint noise analyzer An embodiment to be described will be described with reference to FIG.

  A mouth opening device (not shown in the present invention) is attached to the oral cavity of the subject 1 and opened, and a moving image of the opening and closing movement by the subject 1 with the upper and lower jaw front teeth exposed is imaged. 2 and the temporomandibular joint noise during the opening / closing movement is sampled by the sound collectors (microphones) 4 and 5, and the moving image from the imaging device 2 and the sound from the sound collectors 4 and 5 are collected. Data obtained by A / D conversion by the A / D converter 14 is stored in the recording means of the computer 7, and a moving image of the opening / closing movement of the subject 1 and temporomandibular joint noise during the opening / closing movement are recorded. When a click sound and a crepitous sound are generated at the same time, the click sound and the peak sound of the crepitous sound are detected and taken as a trigger, and the frame image at that time is stored in the recording means of the computer 7 save.

At the time of analysis, the stored click sound and the frame image at the time of the crepitous sound are read from the recording means of the computer 7, and the coordinates of the marked points of the extracted still image are obtained, thereby obtaining the temporomandibular joint noise in the entire locus of the opening and closing movement. The generation position can be specified.
As a condition for collecting temporomandibular joint noise, it is necessary to keep the period of the opening and closing movement constant.

Hereinafter, the mode at the time of making a temporomandibular disorder diagnosis using the lower jaw front tooth part movement tracking apparatus provided with the pain detector of the present invention will be described.
First, the subject who has complained of pain is interviewed to diagnose the type of pain, ie, spontaneous pain, tenderness, and movement pain.
If it is spontaneous pain, listen to the site of pain, listen to the degree of pain, and then palpate to determine the site and degree of pain.

If it is tenderness, palpation is performed to diagnose the location and extent of tenderness.
Also, if it is movement pain, open and close the mouth and adjust the degree of opening and closing the mandibular anterior teeth of Japanese Patent Application No. 2008-319959 “Mandibular Anterior Tooth Movement Tracking System, Mandibular Anterior Tooth Movement Tracking Device and Jaw Joint Noise Analyzer” Diagnose using a club movement tracking device.

  At this time, if the mouth hardly opens at all, that is, in the case of a closed lock symptom, after the manual reduction (manipulation), therapy with a mouthpiece called a splint so that it can be opened to some extent Then, using the mouth opening device to make the mandibular anterior teeth observable, create the opening and closing mouth locus using the mandibular anterior tooth movement tracking device, and at the same time, the temporomandibular joint comprising the pain detector of the present invention The pain occurrence position and the maximum pain position are detected using the disease diagnosis apparatus, and these positions are described and displayed on the opening / closing locus as shown in FIG.

In order to synchronize the pain and the opening / closing movement, sequential operations are performed in the following order.
1. Using the method of informing the timing using sound and video by animation guidance, LED blinking guidance, etc. as shown in FIG. 6, the subject is made to perform opening and closing movements, and at the same time, pain is confirmed by a pain detector, Data is stored in the personal computer 7.
2. Next, attach the mouth opening device to the subject so that the mandibular anterior part can be seen, and perform the opening and closing movement similar to the previous confirmation of pain, Japanese Patent Application No. 2008-319959 `` Mandibular anterior tooth movement tracking system, Using the mandibular anterior tooth movement tracking device “mandibular anterior tooth movement tracking device and temporomandibular joint noise analysis device”, the opening / closing opening movement locus data is collected and stored in the personal computer 7.
3. Data processing is performed so that the pain data acquired in 1 and the opening and closing movement trajectory data acquired in 2 can be comprehensively determined on the personal computer 7.
4). Further, when confirming the pain during the opening / closing movement of 1 above, the opening degree of the subject is photographed by using the camera 2 of the mandibular anterior tooth movement tracking device, and the opening degree is taken as image (photo) data. It is stored in the personal computer 7 and used as a reference for the subject's own visual treatment process.
Furthermore, by displaying an image of the opening / closing movement of the subject acquired by the camera 2 on the screen of the personal computer 7 as shown in FIG. 6, it can also be used as an image for checking the timing of the opening / closing movement. it can.
In this case, since the subject is not wearing a mouth opening device, the movement trajectory cannot be analyzed, but the subject's mouth opening condition can be stored as an image and used as a reference for treatment progress. it can.
In addition, it goes without saying that the opening / closing movement described above can be performed in accordance with a certain rhythm.

In the mandibular anterior tooth movement tracking system or apparatus provided with the pain detector of the present invention, the region of interest of the anterior mandibular portion for which the trajectory is to be confirmed among the still images is the incisal corner that is the adjacent surface of the mandibular central incisor, that is, the mandibular anterior tooth One point is the midpoint.
In addition, when the lower central incisor is missing, the region of interest is set as the remaining front tooth, and one of them is set.

As a method of expressing pain, the deadman switch that can be handled with one hand is used to express how much pain it is.
There is also a method for expressing pain by sensing pressure by holding a bag containing air (such as a rubber ball that is held by hand to send air during blood pressure measurement) with one hand.
Hold the deadman switch and air-filled bag with one hand and look at the bar displaying the pain on the personal computer screen (the VAS method level display bar 9 of the personal computer 7 in FIG. 6). Then, the subject is made to judge how painful it is so that the amount of pain can be displayed numerically on the screen.
Basically, if you can handle it with one hand while looking at the bar 9 showing the amount of pain on the screen of the personal computer 7 and it becomes 0 when you do not hold it, it is not limited to the above, but in any way There is no problem.
That is, as a pain measuring instrument, a linear slide bar type with a spring that can be operated with one hand, a one that can be operated with one hand, and returns to the 0 position by the spring when released, a type that can be placed on a table Adopting a straight slide bar, rotating volume type, or deadman type switch, etc. (with a size that can be placed on the subject's knee and handled with both hands) be able to.

A “pain map” is created using the pain range and pain degree data obtained as described above.
That is, according to the present invention, as shown in FIG. 4, pain is classified into spontaneous pain, tenderness, and movement pain, and the right (R) and left (L) schematic diagrams of the head (particularly the lower jaw) are shown. The position and degree (size) of the above are displayed in color and numerical values, and the pain occurrence location and the maximum pain location are recorded in the trajectory of the mandibular anterior teeth, and the temporomandibular joint noise occurrence location is also recorded, If a “pain map” is created as a result of pain measurement at every medical examination, the prognosis of temporomandibular disorders can be estimated to some extent. In the figure, the degree of pain is indicated by a number within the pain range.

  In creating such a pain map, a sample in which the type of pain is represented by, for example, a square, a triangle, a circle, or an ellipse on the side of the screen, or colored in the same figure is created. In the center of the screen, drag the mouse to the position that represents the pain in the left and right head side views drawn in advance while dragging with a mouse pointer. It is possible to draw and draw to a location representing, and furthermore, the pain size can be represented numerically in this circle.

  Further, in determining the region of interest (ROI), a graphic notation can be performed by clicking a certain center point. In this case, a range around the center point can be specified by clicking and dragging the center point.

Alternatively, the range of pain can be specified more accurately by connecting a plurality of clicked points with straight lines or curves. In this case, the curve curve and straight line length change by clicking and dragging to some extent, and when you release the click, the change stops and you can express the curve and straight line curve and length. Therefore, the range of pain can be specified more accurately.
By using such a “pain map”, it is possible to visually explain the medical condition and treatment course at that time to the subject.
It is also possible to create a pain map with the notation as shown in FIG.

  In the present invention, the colors of spontaneous pain, tenderness, and movement pain shown in FIG. 4 and FIG. 7 are shown in blue, yellow, and red, for convenience of explanation, blue is upper right slope hatching, and yellow is upper left slope. Hatching and red are represented by horizontal hatching.

  In addition, the degree of pain, opening degree, noise frequency, and degree of temporomandibular joint noise obtained by the above-described mandibular anterior tooth movement tracking device including the pain detector of the present invention described above are examined several times (in this case, six times) from the initial examination. FIG. 5 shows a follow-up observation example observed until time.

Next, another embodiment of the present invention will be described with reference to FIGS.
In this embodiment, the movement of the lower jaw of the subject is tracked, and a mark having a certain shape as a reference point is provided at the lower nose point of the subject, and a mark having a certain shape as a tracking figure is provided at the mental point. Each opening / closing opening movement is performed, the opening / closing opening movement is photographed as a moving image by a camera, and an image matching process is performed on the photographed moving image.

  That is, as shown in FIG. 10, if a line having a specified length is drawn to the left and right from a substantially central point of a mark in one image, and the horizontal axis is “section” and the vertical axis is “density”, the density in that line is A distribution curve can be shown. A matching area is set based on the density distribution curve, and matching processing is performed on all the images in the set area based on the reference density distribution curve obtained from the initial image, and the density distribution curve is tracked. To display the trajectory.

  As shown in FIG. 8 (a), a figure, which is a “donut-shaped mark” in this example, is attached to one point of the subject's chin portion in the closed state as a tracking figure, and the opening / closing movement is performed. Make it.

  In the middle of the opening, as shown in FIG. 8 (b), as the amount of opening increases, the tracking figure approaches the oval shape of the donut shape, and at the maximum opening, as shown in FIG. 8 (c), It becomes completely elliptical.

  In this example, when only the density distribution curve in the line drawn by the donut-shaped mark of the tracking figure to be subjected to image matching processing is extracted and tracked, the movement of the opening / closing opening movement is as shown in FIG. become.

This density distribution curve can be matched because it does not change even if the donut shape looks like an ellipse.
This is because, as shown in FIG. 10, the density distribution curves are the same regardless of whether the tracking figure has a donut shape, such as a circle or an ellipse.

Thus, in order to obtain the movement of the tracking figure as shown in FIG. 9, as shown in FIG. 11 (a), the image center (near) of the donut-shaped figure mark is pointed (clicked), and FIG. As shown in b), a line (that is, a reference line) is drawn from the pointed point by the length specified on the left and right.
In this example, the density distribution curve of the drawn line is used as a reference.
In addition, the position where the reference line is drawn does not necessarily have to be the center position as long as it is inside the donut shape (a place where the pattern of the figure can be confirmed).

  The opening and closing movement is photographed as a moving image by a camera, and image matching processing is performed on the photographed moving image.

Therefore, a matching area is set as shown in FIG. In the setting, an area in which the figure moves is specified, and image matching processing is performed on the reference density distribution curve obtained from the initial image in the area.
In this way, what designates the X axis and the Y axis from the initial figure to the movement of the figure is displayed in FIG. Therefore, the locus is shown in FIG.
Further, in the setting of the image matching area of the seal, in the drawing, the part attached to the genital point is set as the image matching area, but the area including the nose point can also be set as the image matching area.

Further, the width of movement of the locus (pixel or distance mm) is also displayed in FIG.
In the previous example, the matching of the lower anterior teeth portion was two-dimensional matching, whereas in the present embodiment, the lower jaw matching was one-dimensional matching. Therefore, by performing the matching in one dimension, the time can be significantly shortened compared with the matching in two dimensions.

  In this embodiment, the reference point is the lower nose point. However, as shown in FIG. 14, the reference point may be any point as long as it is above the upper jaw on the midline passing through the lower nose point.

Next, a modification of the second embodiment will be described with reference to FIG.
In this example, a cap that is shaped to cover the chin portion of the lower jaw of the subject, ie, the genital cap 17 is provided. A locus similar to that of the second embodiment can be obtained by attaching a seal to the genre cap 17 and tracking the seal in the same manner as described for the second embodiment.
As shown in FIG. 15, the mental cap 17 is provided so as to fit into the mental portion of the lower jaw of the subject and temporarily adhere or adhere.
In this way, by attaching the mental cap of this example, it is possible to acquire accurate trajectory data that is not affected by the movement of skin or muscle.

  Adhesion or fixing means to the mandible of the chin cap is done by applying an adhesive or by attaching a belt or string made of a stretchable material like a mask to the chin cap and supporting it with the ear . Furthermore, a fixing device can be provided at both ends of the fixing means, and the fixing device can be supported by being inserted into an ear hole like a stethoscope. In short, any shape may be used as long as the cap is not displaced from the lower jaw when the opening / closing movement is performed.

  As described above, according to the present invention, by performing pain measurement quantitatively, a “pain map” representing the type of pain, the range of pain, and the degree of pain can be used for visual explanation to the subject. It is possible to observe the change in pain level (pain map change) as the treatment progresses, so that the treatment progress (treatment status) can be explained accurately, and the prognosis of temporomandibular disorders Can be estimated to some extent.

  The present invention can also be applied to frequency analyzers and FA (Factory Automation) equipment inspection devices.

1 Subject 2 Imaging equipment (camera)
3 Control Box 4 Microphone 5 Microphone 6 Pain Measuring Instrument 7 Personal Computer 9 VAS Method Level Display Bar 11 Amplifier 12 Gain Controller 13 Changeover Switch 14 A / D Converter 15 Controller 16 Memory 17 Memory Cap

Claims (41)

  A trajectory of the opening / closing movement of the subject is acquired, and a pain measuring device is provided, and the pain occurrence position and the degree of pain of the subject obtained by the pain measuring device are added to the data of the acquired all trajectories. A system for assisting diagnosis of temporomandibular disorders comprising a pain detector, characterized in that it can be measured and analyzed quantitatively and displayed in an audiovisual manner in synchronization with the opening and closing movement.   2. The temporomandibular disorder diagnosis support system having a pain detector according to claim 1, wherein the means for acquiring the trajectory of the opening / closing movement of the subject is executed by a temporomandibular joint tracking system.   The temporomandibular joint movement tracking system according to claim 2, wherein the temporomandibular joint movement tracking system is executed by a lower jaw front tooth movement tracking system.   The temporomandibular joint tracking support system according to claim 2, wherein the temporomandibular joint tracking system is executed by a mandibular movement tracking system.   A means for acquiring a trajectory of the opening / closing movement of the subject and a pain measuring device, and the pain occurrence position and pain of the subject obtained by the pain measuring device on the acquired data of all the trajectories A device for diagnosing temporomandibular disorders comprising a pain detector, characterized in that it comprises a means capable of quantitatively measuring and analyzing the degree of visual recognition in synchronism with the opening / closing movement.   6. The temporomandibular disorder diagnosis support apparatus having a pain detector according to claim 5, wherein the means for acquiring a trajectory of the opening / closing movement of the subject is executed by a temporomandibular joint tracking apparatus.   The temporomandibular joint movement tracking device is implemented by a mandibular anterior tooth movement tracking device, and a temporomandibular disorder diagnosis support apparatus having a pain detector according to claim 6.   The temporomandibular joint tracking apparatus according to claim 6, wherein the temporomandibular joint tracking apparatus is implemented by a mandibular movement tracking apparatus. In performing the mandibular anterior tooth movement tracking method,
In a state where the subject's upper and lower jaw front teeth are exposed, the subject is caused to perform opening and closing movement, and the opening and closing movement is photographed by a camera,
Storing the captured moving image in a recording means of a computer;
The moving image stored in the recording means is converted into a still image for each frame, and from the converted still image, an image in which the upper and lower jaw front teeth are slightly separated is used as a start image from the recording means of the computer. Read out, display on the image display means, mark the region of interest in the anterior part of the lower jaw where you want to check the locus of the start image,
In setting the template of the trajectory using the start image,
A region of interest (ROI) in a range centered on the marked point is set in advance, and the set region of interest is extracted as a first template,
An image matching process is performed on the next second frame image using the extracted first template,
Store the coordinates of the marked point showing the maximum matching in the second frame image, and perform position measurement,
Cutting out the region of interest in the same range as the first template around the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image;
This is used as a second template, and image matching processing is performed between the second template and the third frame image.
By repeating such processing, template creation and image matching processing are performed until the last still image,
Measure the position of the marked point of the region of interest for all still images,
Obtaining the entire locus of the opening and closing movement from all of the position coordinates of the marked point subjected to image matching processing obtained from each still image,
Mandibular anterior tooth movement tracking provided with a pain detector characterized in that a pain measuring device is provided, and the pain measuring position and degree of pain of the subject can be quantitatively measured and analyzed and displayed by the pain measuring device system. In a state where the subject's upper and lower jaw front teeth are exposed, the subject is caused to perform opening and closing movement, and the opening and closing movement is photographed by a camera,
Storing the captured moving image in a recording means of a computer;
The moving image stored in the recording means is converted into a still image for each frame, and from the converted still image, an image in which the upper and lower jaw front teeth are slightly separated is used as a start image from the recording means of the computer. Read out, display on the image display means, mark the region of interest in the anterior part of the lower jaw where you want to check the locus of the start image,
In setting a trajectory template using the start image, a region of interest (ROI) in a range centered on the marked point is set in advance, and the set region of interest is extracted as a first template,
An image matching process is performed on the next second frame image using the extracted first template,
Store the coordinates of the marked point showing the maximum matching in the second frame image, and perform position measurement,
Cutting out the region of interest in the same range as the first template around the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image;
This is used as a second template, and image matching processing is performed between the second template and the third frame image.
By repeating such processing, template creation and image matching processing are performed until the last still image,
Measure the position of the marked point of the region of interest for all still images,
Obtaining the entire locus of the opening and closing movement from all the position coordinates of the marked point subjected to image matching processing obtained from each still image,
The pain detector according to claim 9, wherein the pain occurrence position, the maximum pain position, and the degree of pain can be synchronously displayed on the data of all the obtained trajectories so as to be visually recognized. Mandibular anterior tooth tracking system.   The region of interest of the lower anterior tooth portion of which the locus is to be confirmed in the still image is set as a point at the corner of the incision that is the adjacent surface of the lower central incisor, that is, the middle point of the lower anterior tooth portion of the mandible. A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 10.   The analysis display method uses notation means such as color identification notation, language notation, size notation, level indication, graphic notation, etc. for pain type, pain range, pain degree, and a schematic diagram of the affected area. The mandibular anterior tooth movement tracking system comprising the pain detector according to claim 9, wherein the system can be displayed visually.   The mandibular anterior tooth movement tracking system having a pain detector according to claim 10, wherein the synchronous display method uses notation means such as color identification notation, language notation, level indication, graphic notation.   From a camera that captures a moving image of the opening and closing movement of the subject's upper and lower jaw front teeth, a sound collection device that collects temporomandibular joint noise during the opening and closing movement of the subject, an A / D converter, and a camera Recording means of a computer for storing the moving image and the sound collection from the sound collection device as A / D converted data, the state where the upper and lower jaw front teeth of the subject are exposed, and the sound collection device In a state where it is applied to the subject's temporomandibular joint, the subject is caused to perform an opening / closing movement, a moving image of the opening / closing movement is captured by a camera, and the captured moving image is stored in a computer recording means Simultaneously, the temporomandibular joint noise of the subject during the opening / closing movement is sampled, and the data is stored in the computer recording means via the A / D converter. Is stored in the computer's recording means in synchronization with the opening and closing movement. Mandibular anterior motion tracking system including a pain detector according to any one of claims 9 to 13, characterized in that may sense frame image generated joints noise.   15. An anterior jaw with a pain detector according to any one of claims 9 to 12 and claim 14, wherein the degree of opening, temporomandibular joint noise, and pain associated with treatment can be visually displayed. Club movement tracking system.   The lower jaw having the pain detector according to any one of claims 9 to 15, further comprising guidance display means for guiding and displaying the opening / closing movement of the subject by animation, light, sound, or the like. Anterior tooth movement tracking system.   Comparing the guidance display of the opening and closing movement with a moving image obtained by photographing the opening and closing movement with the camera by allowing the subject to perform the opening and closing movement with the subject's upper and lower jaw front teeth exposed. 17. A mandibular anterior tooth movement tracking system comprising the pain detector according to claim 9.   18. The mandibular anterior tooth movement tracking comprising the pain detector according to any one of claims 9 to 17, wherein the pain measuring device is a measuring device capable of sensing a hand grip strength and / or displacement. system.   18. The measuring device according to claim 9, wherein the pain measuring device is a measuring device capable of sensing a distance shift including a scale indicating the magnitude of pain and an operation member that moves along the scale. A mandibular anterior tooth movement tracking system comprising the pain detector according to any one of the above.   The pain detector according to claim 18 or 19, wherein the measuring device is a pneumatic type, a hydraulic type, a piezoelectric element type, a spring type, or a variable resistor whose stroke is linked to a sliding terminal. Mandibular anterior tooth movement tracking system.   The mandibular anterior tooth movement tracking system comprising the pain detector according to any one of claims 9 to 17, wherein the pain measuring device is a deadman type switch capable of measuring only the presence or absence of pain.   14. The mandibular anterior tooth movement tracking system comprising the pain detector according to claim 9, wherein a range of pain can be specified by a computer input device.   23. A mandibular anterior tooth movement tracking system comprising a pain detector according to any one of claims 9 to 22, wherein pain measurement and opening / closing movement can be measured simultaneously.   24. The pain measurement and the opening / closing movement are separately measured by using the guidance display means to synchronize, and the combined display of the data is enabled. Mandibular anterior tooth movement tracking system with pain detector.   In the state where the subject's upper and lower jaw front teeth are exposed, the subject is allowed to perform opening and closing movements, and the opening and closing movements are also captured by capturing the facial expression of the subject with a camera that has photographed the opening and closing movements with a camera. The measurer quantifies the degree of pain, the pain occurrence position, and the maximum pain position from the facial expression of the moving image reproduced after measurement, and inputs the degree of pain, the pain occurrence position, and the maximum pain position on the opening and closing movement trajectory data. 25. A mandibular anterior tooth movement tracking system comprising the pain detector according to any one of claims 9 to 24. In implementing the mandibular anterior tooth movement tracking device,
With the subject's upper and lower jaw front teeth exposed, means for causing the subject to perform an opening / closing movement and photographing the opening / closing movement as a moving image by a camera; and Means for storing in the recording means, means for converting the moving image stored in the recording means of the computer into a still image for each frame, and of the converted still image, the upper and lower jaw front teeth are slightly separated Means for reading out the state image from the recording means of the computer as a start image and displaying it on the image display means; means for marking a region of interest in the anterior part of the lower jaw where the locus is to be confirmed in the displayed start image; and the start In setting a trajectory template using an image, means for setting a region of interest (ROI) in a range centered on the marked point in advance, Means for extracting the region of interest as a first template, means for performing an image matching process on the next second frame image using the extracted first template, and a maximum of the second frame image Means for measuring the position by storing the coordinates of the marked point indicating matching, and a first centered on the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image Means for cutting out a region of interest in the same range as the template and using this as a second template; means for performing image matching processing between the second template and the third frame image; and template creation by repeating such processing Means for performing image matching processing up to the last still image and measuring the position of the marked point of the region of interest for all still images; Means for obtaining the entire locus of the opening and closing movement from all the position coordinates of the marked point obtained by image matching processing obtained from each still image, and pain measurement for quantitatively measuring and displaying the pain occurrence symptoms of the subject A device for tracking the movement of the anterior part of the lower jaw with a pain detector.   With the subject's upper and lower jaw front teeth exposed, means for causing the subject to perform an opening / closing movement and photographing the opening / closing movement as a moving image by a camera; and Means for storing in the recording means, means for converting the moving image stored in the recording means of the computer into a still image for each frame, and of the converted still image, the upper and lower jaw front teeth are slightly separated Means for reading out the state image from the recording means of the computer as a start image and displaying it on the image display means; means for marking a region of interest in the anterior part of the lower jaw where the locus is to be confirmed in the displayed start image; and the start In setting a trajectory template using an image, means for setting a region of interest (ROI) in a range centered on the marked point in advance, Means for extracting the region of interest as a first template, means for performing an image matching process on the next second frame image using the extracted first template, and a maximum of the second frame image Means for measuring the position by storing the coordinates of the marked point indicating matching, and a first centered on the position of the marked point indicating the maximum matching of the image subjected to image matching processing of the second frame image Means for cutting out a region of interest in the same range as the template and using this as a second template; means for performing image matching processing between the second template and the third frame image; and template creation by repeating such processing Means for performing image matching processing up to the last still image and measuring the position of the marked point of the region of interest for all still images; Means for obtaining the entire locus of the opening and closing movement from all of the position coordinates of the marked point subjected to image matching processing obtained from each still image, and the pain occurrence position, the maximum pain position on the data of the obtained all locus, 27. The mandibular anterior tooth movement tracking device comprising the pain detector according to claim 26, further comprising means for synchronously displaying the degree of pain so as to be visually recognized.   27. The region of interest of the lower anterior tooth portion of which the locus is to be confirmed in the still image is set as a point at the incisal corner that is the adjacent surface of the lower central incisor, that is, the middle point of the lower anterior tooth portion. A mandibular anterior tooth movement tracking device comprising the pain detector according to claim 27.   Camera that captures moving image of subject's opening and closing movement, sound collector that collects temporomandibular joint noise during opening and closing movement of subject, A / D converter, moving image and sampling from camera And a computer recording means for storing the sound collected from the sound device as A / D converted data, the state where the upper and lower jaw front teeth of the subject are exposed, and the sound collecting device for the subject's jaw Means for causing the subject to perform opening / closing movement in a state of being applied to the joint, and capturing a moving image of the opening / closing movement with a camera; and means for storing the captured moving image in a recording means of a computer; And means for simultaneously recording the subject's temporomandibular joint noise during opening and closing movements, means for storing data in the computer recording means via the A / D converter, and a still image when the temporomandibular joint noise occurs And recording data synchronized with computer recording means 29. A mandibular anterior portion comprising the pain detector according to any one of claims 26 to 28, further comprising means for detecting a frame image in which temporomandibular joint noise is generated during opening and closing movements. Movement tracking device. In executing the mandibular movement tracking method,
At the arbitrary point above the upper jaw of the midline passing through the subject's nose point, a mark serving as a reference point is attached, and a tracking mark for tracking the mandibular movement is attached to the subject's mental part,
Have the subject perform opening and closing movements, take a moving image of each mark by the opening and closing movements with a camera,
Storing the captured moving image in a recording means of a computer;
A still image for each frame is extracted from the moving image stored in the recording means, and a line having a specified length is drawn to the left and right from the substantially center point of the tracking mark of the extracted still image,
One point of the drawn line is set as a tracking point, and a matching region is set based on the density distribution curve in the drawn line.
Applying image matching processing to all images based on the reference density distribution curve obtained in the initial image within the set area,
Thus, the trajectory of the tracking point is obtained from the initial image as a full trajectory for the still image of all frames, and
A mandibular movement tracking system comprising a pain detector, characterized in that a pain measuring device is provided and the pain measuring position and the degree of pain of the subject can be quantitatively measured and analyzed and displayed by the pain measuring device. At the arbitrary point above the upper jaw of the midline passing through the subject's nose point, a mark serving as a reference point is attached, and a tracking mark for tracking the mandibular movement is attached to the subject's mental part,
Have the subject perform opening and closing movements, take a moving image of each mark by the opening and closing movements with a camera,
Storing the captured moving image in a recording means of a computer;
A still image for each frame is extracted from the moving image stored in the recording means, and a line having a specified length is drawn to the left and right from the substantially center point of the tracking mark of the extracted still image,
One point of the drawn line is set as a tracking point, and a matching region is set based on the density distribution curve in the drawn line.
Applying image matching processing to all images based on the reference density distribution curve obtained in the initial image within the set area,
Thus, the trajectory of the tracking point is obtained from the initial image as a full trajectory for the still image of all frames, and
The pain detector according to claim 30, wherein the pain generation position, the maximum pain position, and the degree of pain can be synchronously displayed on the data of all the obtained trajectories so as to be visually recognized. Mandibular movement tracking system.   32. Mandibular movement tracking with a pain detector according to claim 30 or 31, wherein an arbitrary position above the upper jaw of the median line passing through the lower nose point of the subject is the lower nose point. system. In implementing the mandibular movement tracking device,
A mark serving as a reference point provided at an arbitrary position above the upper jaw of the midline passing through the subject's nose point, and a tracking mark for tracking the mandibular movement provided in the subject's mental part,
A camera that causes the subject to perform an opening and closing movement, and shoots a moving image of each mark by the opening and closing movement;
Means for storing a moving image photographed by the camera in a recording means of a computer;
Means for extracting a still image for each frame from the moving image stored in the recording means, and drawing a line of a specified length to the left and right from the substantially center point of the tracking mark of the extracted still image;
Means for setting one region of the drawn line as a tracking point and further setting a matching region based on a density distribution curve in the drawn line;
Means for performing image matching processing on all images based on the reference density distribution curve obtained in the initial image within the set region;
Thus, means for obtaining the tracking point trajectory from the initial image as a full trajectory for all frame still images;
Mandibular movement provided with a pain detector, characterized by comprising a pain measuring device and means for quantitatively measuring and analyzing and displaying the pain occurrence position of the subject and the degree of pain by the pain measuring device Tracking device. A mark serving as a reference point provided at an arbitrary position above the upper jaw of the midline passing through the subject's nose point, and a tracking mark for tracking the mandibular movement provided in the subject's mental part,
A camera that causes the subject to perform an opening and closing movement, and shoots a moving image of each mark by the opening and closing movement;
Means for storing a moving image photographed by the camera in a recording means of a computer;
Means for extracting a still image for each frame from the moving image stored in the recording means, and drawing a line of a specified length to the left and right from the substantially center point of the tracking mark of the extracted still image;
Means for setting one region of the drawn line as a tracking point and further setting a matching region based on a density distribution curve in the drawn line;
Means for performing image matching processing on all images based on the reference density distribution curve obtained in the initial image within the set region;
Thus, means for obtaining the tracking point trajectory from the initial image as a full trajectory for all frame still images;
34. The pain detector according to claim 33, further comprising means for synchronously displaying the pain occurrence position, the maximum pain position, and the degree of pain on the data of all the obtained trajectories so as to be visually recognized. Mandibular movement tracking device.   The tracking of the lower jaw with the pain detector according to claim 33 or 34, wherein an arbitrary position above the upper jaw of the median line passing through the lower nose of the subject is the lower nose. apparatus.   A mark serving as a reference point provided at an arbitrary position above the upper jaw of the midline passing through the subject's nose point, a tracking mark for tracking the mandibular movement provided in the chin portion of the subject, and the subject Which makes the person perform opening / closing movement, and which captures a moving image of both marks by the opening / closing movement, a sound collector which collects temporomandibular joint noise during the opening / closing movement of the subject, and an A / D converter And a computer recording means for storing the moving image from the camera and the sound collection from the sound collection device as A / D converted data, with the sound collection device applied to the temporomandibular joint of the subject, The subject is caused to perform the opening / closing movement, the moving image of the opening / closing movement is photographed by the camera, the photographed moving image is stored in the recording means of the computer, and the subject during the opening / closing movement simultaneously. Of temporomandibular joint noise and computer recording through A / D converter The data can be stored in a stage, the still image at the time of the temporomandibular joint noise generation and the sound collection data can be synchronized and stored in the computer recording means, and the frame image in which the temporomandibular joint noise has occurred during the opening and closing movement can be detected 32. A mandibular movement tracking system comprising the pain detector according to any one of claims 30 and 31.   A mark serving as a reference point provided at an arbitrary position above the upper jaw of the midline passing through the subject's nose point, a tracking mark for tracking the mandibular movement provided in the chin portion of the subject, and the subject Which makes the person perform opening / closing movement, and which captures a moving image of both marks by the opening / closing movement, a sound collector which collects temporomandibular joint noise during the opening / closing movement of the subject, and an A / D converter And a computer recording means for storing the moving image from the camera and the sound collection from the sound collection device as A / D converted data, and the sound collection device in a state where the sound collection device is applied to the temporomandibular joint of the subject. Means for causing the subject to perform opening / closing movement, means for taking a moving image of the opening / closing opening movement with a camera, means for storing the photographed moving image in a recording means of a computer, and opening / closing movement simultaneously Means for collecting the temporomandibular joint noise of the subject at the time, and the A / D A means for storing data in a computer recording means via a barter, a still image at the time of occurrence of the temporomandibular joint noise, and a sound collection data are stored in the recording means of the computer in synchronism to generate temporomandibular joint noise during opening and closing movements 35. A mandibular movement tracking device comprising the pain detector according to any one of claims 33 to 34, further comprising means for detecting the frame image.   37. A mandibular movement tracking system comprising a pain detector according to any one of claims 30, 31 and 36, wherein the tracking mark is provided directly at one point of a genital area of a subject.   38. A mandibular movement tracking device comprising a pain detector according to any one of claims 33, 34 and 37, wherein the tracking mark is provided directly at one point of a genital area of a subject.   The pain detector according to any one of claims 30, 31, and 36, wherein a mental cap is provided in a mental part of a subject, and the tracking mark is attached in the vicinity of a distal end portion of the mental cap. Mandibular movement tracking system provided.   The pain detector according to any one of claims 33, 34, and 37, wherein a mental cap is provided in a mental portion of a subject, and the tracking mark is attached in the vicinity of a distal end portion of the mental cap. Mandibular movement tracking device provided.

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