Tooth image acquisition device and acquisition method

Abstract

The invention discloses a tooth image acquisition device and method, and the device comprises a base frame and an acquisition structure, the acquisition structure comprises a plurality of acquisition units, and the plurality of acquisition units are installed on the base frame at different angles; the acquisition ends of the plurality of acquisition units at different angles are suitable for facing an oral cavity to be acquired so as to acquire tooth image information at different angles. According to the structure, multi-angle shooting can be realized, a user can complete comprehensive tooth image acquisition in a short time, and the detection efficiency is remarkably improved. The to-be-detected oral cavity is located at the opening position of the collection interface, and compared with the prior art needing to stretch into the oral cavity for collection, the non-contact design not only improves the user experience, but also effectively reduces the sanitation problem caused by contact, provides safety guarantee for large-scale use, is suitable for the scene of multi-user use, and improves the user experience. Therefore, the cost of tooth health monitoring is reduced, and the popularity rate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oral health monitoring, and in particular to a tooth image acquisition device and acquisition method. Background Art

[0002] As people's living standards improve, dental health issues are receiving more and more attention. Data show that the rate of dental caries among children and adolescents is increasing year by year with the improvement of dietary standards. Therefore, regular dental health checks are particularly important.

[0003] In current technology, fluorescence technology can be used to achieve image acquisition through a combination of light detectors, fiber optic bristles and LED lights. Users can transfer data to smartphones through USB interfaces and use APP to obtain real-time images to provide data support for caries detection and treatment. Alternatively, deep blue light and white light LED lighting units can be set up to detect lesions through camera devices and lighting units.

[0004] When it is necessary to capture images of the interior of the oral cavity, the tooth acquisition device needs to be manually inserted into the oral cavity for image acquisition. However, current equipment can only capture partial tooth images at a time and cannot fully present the tooth images of the entire oral cavity, which reduces convenience and acquisition efficiency. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that when it is necessary to collect images of the inside of the oral cavity, the tooth collection device needs to be manually inserted into the oral cavity for image collection. However, the current equipment can only collect partial tooth images at a time and cannot fully present the tooth images of the entire oral cavity, which reduces the convenience and collection efficiency.

[0006] To this end, the present invention provides a tooth image acquisition device, comprising:

[0007] Scaffolding;

[0008] A collection structure, the collection structure comprising a plurality of collection units, wherein the plurality of collection units are mounted on the base frame at different angles;

[0009] Among them, the collection ends of the collection units at several different angles are all suitable for facing the oral cavity to be collected to collect tooth image information at different angles.

[0010] Optionally, the above-mentioned base frame is provided with a collection space which is open to one side, and the oral cavity to be collected is placed at the opening of the collection space;

[0011] The acquisition unit comprises:

[0012] A first collection unit, wherein the first collection unit is installed in the collection space;

[0013] A second collection unit and a third collection unit, wherein the second collection unit and the third collection unit are symmetrically installed at the top and bottom of the collection space;

[0014] Wherein, the collecting ends of the first collecting unit, the second collecting unit and the third collecting unit are all facing the opening of the collecting space.

[0015] Optionally, the above-mentioned base frame includes a first mounting plate, a second mounting plate and a third mounting plate, the first mounting plate is vertically arranged, the second mounting plate is mounted on the top end of the first mounting plate; the third mounting plate is mounted on the bottom end of the first mounting plate;

[0016] The first acquisition unit includes:

[0017] a first imaging camera fixing panel, the first imaging camera fixing panel being connected to the first mounting plate;

[0018] a first imaging camera, wherein the first imaging camera is mounted on the first imaging camera fixing panel;

[0019] A first light board, wherein the first light board is fixed on the first imaging camera, a first through hole is provided on the first light board, a collecting end of the first imaging camera passes through the first through hole and extends into a collecting space, and a light-emitting surface of the first light board faces an opening of the collecting space.

[0020] Optionally, the second acquisition unit includes:

[0021] a second imaging camera fixing panel, wherein the second imaging camera fixing panel is connected to the second mounting plate;

[0022] A second imaging camera, wherein the second imaging camera is mounted on the second imaging camera fixing panel; the second imaging camera has an inclined state that gradually approaches the axis of the first imaging camera from the first mounting plate to the acquisition space opening;

[0023] A second light board, wherein the second light board is arranged on the second imaging camera, a second through hole is opened on the second light board, the collecting end of the second imaging camera passes through the second through hole and extends into the collecting space, and the light-emitting surface of the second light board faces the opening of the collecting space.

[0024] Optionally, the third acquisition unit includes:

[0025] a third imaging camera fixing panel, wherein the third imaging camera fixing panel is connected to the third mounting plate;

[0026] A third imaging camera, the third imaging camera being mounted on the third imaging camera fixing panel; the third imaging camera being in an inclined state gradually approaching the axis of the first imaging camera in a direction from the first mounting plate to the acquisition space opening;

[0027] A third light board, wherein the third light board is arranged on the third imaging camera, a third through hole is opened on the third light board, a collecting end of the third imaging camera passes through the third through hole and extends into a collecting space, and a light-emitting surface of the third light board faces the opening of the collecting space.

[0028] Optionally, the second imaging camera fixing panel is rotatably arranged on the second mounting plate;

[0029] The third imaging camera fixing panel is rotatably disposed on the third mounting plate.

[0030] Optionally, the above-mentioned dental image acquisition device further includes a light blocking frame, and the light blocking frame is used to limit the light emitted by the first light board, the second light board and the third light board within the acquisition space.

[0031] Optionally, the above-mentioned dental image acquisition device further includes a control module and a display interaction module; the control module and the display interaction module are both fixed on the base frame;

[0032] The control module is connected to the display interaction module signal, and the control module is connected to the acquisition structure signal.

[0033] A method for acquiring dental images comprises the following steps: placing a mouth to be acquired at an opening position of an acquisition space; closing the mouth to be acquired, and acquiring a frontal image of the mouth to be acquired by a first imaging camera; opening the mouth to be acquired, and acquiring images of the mandibular and maxillary occlusal surfaces in the mouth by a second imaging camera and a third imaging camera, respectively.

[0034] Optionally, the above step of "the mouth to be collected is closed, and the first imaging camera collects the front view image of the mouth to be collected; the mouth to be collected is opened, and the second imaging camera and the third imaging camera collect the images of the mandibular and maxillary occlusal surfaces in the mouth respectively" specifically includes the following sub-steps:

[0035] When the oral cavity is closed, the first light board emits white light to illuminate the front of the teeth, and the first imaging camera collects the front direct image. Then, the first light board emits blue-violet light to illuminate the front of the teeth, and the first imaging camera collects the front fluorescent image.

[0036] To be collected, the oral cavity is opened, the second lamp plate and the third lamp plate both emit white light to irradiate on the teeth of the mandible and upper jaw respectively. The second imaging camera collects intuitive images of the mandible teeth, the third imaging camera collects intuitive images of the maxillary teeth, and then the second lamp plate and the third lamp plate both emit blue and purple light to irradiate on the teeth of the mandible and upper jaw respectively. The second imaging camera collects fluorescent images of the mandible teeth, and the third imaging camera collects fluorescent images of the maxillary teeth.

[0037] The technical solution provided by the present invention has the following advantages:

[0038] 1. The dental image acquisition device provided by the present invention comprises: a base frame and an acquisition structure, wherein the acquisition structure comprises a plurality of acquisition units, and the plurality of acquisition units are mounted on the base frame at different angles; the acquisition ends of the plurality of acquisition units at different angles are all suitable for facing the oral cavity to be acquired so as to acquire dental image information at different angles.

[0039] This structure can realize multi-angle shooting, and users can complete comprehensive tooth image acquisition in a short time, significantly improving detection efficiency. Moreover, the oral cavity to be tested is located at the opening position of the collection interface. Compared with the existing technology that needs to be extended into the oral cavity for collection, this non-contact design not only improves the user experience, but also effectively reduces the hygiene problems caused by contact, and provides safety guarantees for large-scale use. It is suitable for scenarios where multiple people are used, such as communities, schools, etc., reducing the cost of dental health monitoring and increasing the popularity rate.

[0040] 2. The fixed mechanical structure of the second imaging camera and the third imaging camera provided by the present invention adopt a rotatable rotation shaft design, and the adjustment range is ±10 degrees to adapt to the oral structure differences of different individuals. This design allows the camera to adjust flexibly at different angles, ensuring a complete picture of the teeth can be captured. This flexibility is particularly important in practical applications, because each subject's oral morphology and structure are different, which can meet the needs of different users, thereby improving the accuracy and reliability of the detection.

[0041] 3. The tooth image acquisition device provided by the present invention further comprises a light blocking frame; specifically, the light blocking frame includes four light blocking plates, namely the first light blocking plate, the second light blocking plate, the third light blocking plate and the fourth light blocking plate; the first light blocking plate is a horizontal plate, installed in the acquisition space, and installed between the first lamp plate and the second lamp plate, for limiting the light angle of the first lamp plate; the second light blocking plate is also a horizontal plate, installed in the acquisition space, and installed horizontally between the first lamp plate and the third lamp Between the plates, it is used to limit the light angle of the first lamp plate; the third light blocking plate and the fourth light blocking plate are symmetrically fixed on both sides of the acquisition space, and the upper side of the third light blocking plate and the fourth light blocking plate are fixed on the second mounting plate; the lower side of the third light blocking plate and the fourth light blocking plate are fixed on the third mounting plate; the rear side of the third light blocking plate and the fourth light blocking plate are fixed on the first mounting plate, and the third light blocking plate and the fourth light blocking plate are used to isolate the sides of the acquisition space, and prevent the light emitted by the lamp plate from leaking from the side. The light blocking frame is used to limit the light emitted by the first light board, the second light board and the third light board within the collection space, leaving only an opening on the side away from the first mounting plate for light emission, thereby improving the utilization rate of the light source.

[0042] 4. The dental image acquisition method provided by the present invention, firstly using a white light source to capture the dental image, then switch to the blue-violet light source through the control processing module, and continue to perform subsequent shooting. This light source transformation mechanism not only enhances the imaging effect, but also provides richer data support for comprehensive analysis of tooth status. Blue-violet light can effectively stimulate potential lesions on the surface of teeth and provide doctors with clearer detection basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 It is a schematic diagram of the overall structure of the tooth image acquisition device provided in the present invention;

[0045] Figure 2 It is a structural schematic diagram of the assembly of the base frame, the collection structure and the light shielding frame provided in the present invention;

[0046] Figure 3 It is a structural schematic diagram of the collection structure and the base frame provided in the present invention;

[0047] Figure 4 A rear axle side view of the collection structure and the base frame provided in the present invention;

[0048] Figure 5This is a schematic diagram of the first collecting unit, the second collecting unit and the third collecting unit provided in the present invention collecting data of the oral cavity in a closed state;

[0049] Figure 6 A schematic diagram of the first collecting unit, the second collecting unit and the third collecting unit provided in the present invention collecting data of the oral cavity in an open state;

[0050] Description of reference numerals:

[0051] 1-base frame; 11-first mounting plate; 12-second mounting plate; 13-third mounting plate;

[0052] 2-acquisition structure; 21-first acquisition unit; 211-first imaging camera fixing panel; 212-first imaging camera; 213-first light board; 22-second acquisition unit; 221-second imaging camera fixing panel; 222-second imaging camera; 223-second light board; 23-third acquisition unit; 231-third imaging camera fixing panel; 232-third imaging camera; 233-third light board; 24-acquisition space;

[0053] 3-light blocking frame; 31-first light blocking plate; 32-second light blocking plate; 33-third light blocking plate; 34-fourth light blocking plate;

[0054] 4 – Rotating shaft;

[0055] 51 - imaging sensor; 52 - filter; 53 - lens;

[0056] 6 – rack;

[0057] 7-Show interactive module. DETAILED DESCRIPTION

[0058] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the direction or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the direction or position relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the invention. Furthermore, the terms "first" and "second" are for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] Example 1

[0063] This embodiment provides a tooth image acquisition device, such as Figures 1 to 4 As shown, it includes: a base frame 1, a collection structure 2, a control module and a display interaction module 7.

[0064] The acquisition structure 2 is fixed on the base frame 1 as a whole, and includes a plurality of acquisition units. In this embodiment, three acquisition units constitute the main body of the acquisition structure 2. The three acquisition units are installed on the base frame 1 at different angles, and the acquisition ends of the three acquisition units are all facing the oral cavity to be collected to collect tooth image information at different angles.

[0065] In this embodiment, the three acquisition units are the first acquisition unit 21, the second acquisition unit 22 and the third acquisition unit 23. Figures 2 to 4 As shown, the first collection unit 21, the second collection unit 22 and the third collection unit 23 form a U-shaped structure with the opening facing forward. The first collection unit 21, the second collection unit 22 and the third collection unit 23 enclose a collection space 24, and the oral cavity to be collected is located in the collection space 24 away from the opening of the first collection unit 21.

[0066] like Figure 3 and Figure 4 As shown, the base frame 1 includes a first mounting plate 11, a second mounting plate 12 and a third mounting plate 13, the first mounting plate 11 is vertically arranged, the second mounting plate 12 is installed at the top of the first mounting plate 11, the second mounting plate 12 is a horizontal section close to the first mounting plate 11, and a part away from the first mounting plate 11 is a bent section bent upward in the first direction from the first mounting plate 11 to the acquisition space 24 opening; the third mounting plate 13 is installed at the bottom end of the first mounting plate 11, and a part away from the first mounting plate 11 is a bent section bent section bent in the first direction from the first mounting plate 11 to the acquisition space 24 opening; the third mounting plate 13 is installed at the bottom end of the first mounting plate 11, and a part away from the first mounting plate 11 is a bent section bent in the first direction from the first mounting plate 11 to the acquisition space 24 opening.

[0067] like Figure 3 and Figure 4 As shown, the first acquisition unit 21 includes a first imaging camera fixing panel 211 , a first imaging camera 212 , and a first lamp panel 213 . The first imaging camera fixing panel 211 is fixed on the first mounting plate 11, the first imaging camera 212 is fixed on the first imaging camera fixing panel 211, and a first through hole is opened in the middle of the first lamp plate 213. The acquisition end of the first imaging camera 212 extends into the acquisition space 24 through the first through hole, and the first lamp plate 213 is fixed on the first imaging camera 212; a number of LED lamps are provided on the first lamp plate 213, and several LED lamps are fixed around the first through hole to fix the first lamp plate 213 near the front side of the opening of the acquisition space 24, and the light emitting end of the first lamp plate 213 faces the opening of the acquisition space 24 to irradiate the oral to be detected. The acquisition end of the first imaging camera 212 is horizontal to face the acquisition oral cavity.

[0068] like Figure 3 and Figure 4 As shown, the second acquisition unit 22 is disposed at the upper end of the first mounting plate 11 , the second acquisition unit 22 includes: a second imaging camera fixing panel 221 , a second imaging camera 222 and a second lamp plate 223 , a through hole is opened on the inclined portion of the second mounting plate 12 , and the second imaging camera fixing panel 221 is rotatably mounted on the upper surface of the inclined portion of the second mounting plate 12 away from the edge of the first mounting plate 11 through the rotation shaft 4 ; the second imaging camera 222 is fixed on the second imaging camera fixing panel 221 , and in the first direction, the second imaging camera 222 is inclined toward the opening of the acquisition space 24 below. A second through hole is provided in the middle position of the second lamp plate 223. The central axis of the second through hole is perpendicular to one side of the second lamp plate 223 toward the oral cavity to be detected. The acquisition end of the second imaging camera 222 passes through the second through hole and extends into the acquisition space 24. The second lamp plate 223 is fixed to the second imaging camera 222. Several LED lights are provided on the second lamp board 223, and several LED lights are arranged around the second through-hole on the lower side of the second mounting plate 12. The LED lights can emit white or blue-violet light, and several LED lights are suitable to emit light towards the oral cavity to be detected. The illumination angles of several LED lamps are the same as those of the second imaging camera 222 . Preferably, in a normal state, the irradiation angle of the LED lamp is tilted downward by 45° from the acquisition angle of the second imaging camera 222 . Through the above arrangement, the second imaging camera fixing panel 221 can be flipped up and down as the rotation center of the axis of the rotation shaft 4 to drive the second lamp plate 223 and the second imaging camera 222 to adjust the acquisition irradiation angle of both, and the adjustment range is ±10°.

[0069] like Figure 3 and Figure 4As shown, the third acquisition unit 23 is arranged at the lower end of the first mounting plate 11 , the third acquisition unit 23 includes: a third imaging camera fixing panel 231 , a third imaging camera 232 , and a third lamp plate 233 , a through hole is opened on the inclined portion of the third mounting plate 13 , and the third imaging camera fixing panel 231 is rotatably mounted on the upper surface of the inclined portion of the third mounting plate 13 away from the edge of the first mounting plate 11 through the rotation shaft 4 ; the third imaging camera 232 is fixed on the third imaging camera fixing panel 231 , and in the first direction, the second imaging camera 222 is inclined upward to the opening facing the acquisition space 24 . A third through hole is provided in the middle position of the third lamp plate 233. The central axis of the third through hole is perpendicular to one side of the third lamp plate 233 toward the oral cavity to be detected. The acquisition end of the third imaging camera 232 passes through the third through hole and extends into the acquisition space 24. The third lamp plate 233 is fixed to the third imaging camera 232. Several LED lights are provided on the third lamp board 233, and several LED lights are arranged on the upper side of the third mounting plate 13 around the third through-hole. The LED lights can emit white or blue-violet light, and several LED lights are suitable to emit light towards the oral cavity to be detected. The illumination angles of several LED lamps are the same as those of the third imaging camera 232 . Preferably, in a normal state, the irradiation angle of the LED lamp is tilted downward by 45° from the acquisition angle of the third imaging camera 232. Through the above arrangement, the third imaging camera fixing panel 231 can be flipped up and down as the rotation center of the axis of the rotation shaft 4 to drive the third lamp plate 233 and the third imaging camera 232 to adjust the acquisition irradiation angle of both, and the adjustment range is ±10°.

[0070] like Figures 2 to 4As shown, the first imaging camera 212 is placed inside the device, the first imaging camera 212 is fixed inside the device, and is at a 90° angle with the subject's mouth, focusing on the acquisition of the frontal image of the teeth; while the second imaging camera 222 and the third imaging camera 232 are located outside the device, and the initial angle is set to 45 degrees from the horizontal line, so as to facilitate the capture of images of the upper and lower jaw occlusal surfaces respectively. The three cameras are accurately positioned through fixed structural parts to ensure that the cameras do not block each other, achieving efficient and convenient multi-angle shooting. Moreover, the oral cavity to be tested is located at the opening position of the collection interface. Compared with the existing technology that needs to be extended into the oral cavity for collection, this non-contact design not only improves the user experience, but also effectively reduces the hygiene problems caused by contact, and provides safety guarantees for large-scale use. It is suitable for scenarios where multiple people are used, such as communities, schools, etc., reducing the cost of dental health monitoring and increasing the popularity rate. The fixed mechanical structures of the second imaging camera 222 and the third imaging camera 232 adopt a rotatable rotary shaft 4 design, with an adjustment range of ±10 degrees to adapt to the oral structure differences of different individuals. This design allows the camera to adjust flexibly at different angles, ensuring a complete picture of the teeth can be captured. This flexibility is particularly important in practical applications, because the oral morphology and structure of each subject are different, and it can meet the needs of different users, thereby improving the accuracy and reliability of detection.

[0071] Specifically, the imaging camera adopts a high-performance RGB camera. The first imaging camera 212, the second imaging camera 222 and the third imaging camera 232 have the same structure, and each includes three parts: an imaging sensor 51, a camera interface and a lens 53. The imaging sensor 51 type may include one or more of a CCD camera and a CMOS camera, and its target surface size includes but is not limited to one or more of 1 inch, 2 / 3 inch, 1 / 2 inch, 1 / 3 inch, 1 / 4 inch, and 1 / 5 inch; the camera interface includes but is not limited to one or more of a C interface, a CS interface, a T interface, a M12 interface, and a M42 interface; the focal length of the camera lens 53 includes but is not limited to one or more of 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm, and the aperture size of the lens 53 includes one or more of F3-F11. This flexible configuration allows the system to adapt to the needs of different users and achieve high-quality dental imaging. A filter 52 is installed between the imaging sensor 51 and the lens 53 . The filter 52 is a long-wave pass filter 52 , which is specially used to filter out the blue-violet light and other reflected and scattered light emitted by the light source module so that the excitation light formed by the blue-violet light irradiation to the teeth can smoothly enter the camera imaging sensor 51 for fluorescence imaging; and the filter 52 will not hinder the imaging effect of the white light image, ensuring the image clarity under the two light sources.

[0072] The first lamp plate 213, the second lamp plate 223 and the third lamp plate 233 can emit two types of light sources: white light and blue-violet light with a wavelength of about 405 nm. White light is mainly used for fill light to ensure that the teeth image is clearer and more realistic; blue-violet light with a wavelength of about 405nm is used as excitation light, which can be absorbed by the plaque on the teeth and stimulated fluorescence. This design allows users to effectively identify lesions on the surface of the teeth and improve the accuracy of image analysis.

[0073] By setting up three imaging cameras and three light panels, three oral images at different angles are collected respectively, which improves the imaging quality, improves the collection efficiency, effectively shortens the shooting time, and facilitates users to quickly complete the inspection. In addition, all imaging camera lenses 53 have a large depth of field, which can prevent the tooth image from blurring, thereby ensuring the consistency of imaging quality.

[0074] The first imaging camera 212 is configured with a telephoto lens 53 during the acquisition process to reduce the shooting range and ensure that the details of the teeth can be clearly captured.

[0075] The tooth image acquisition device further includes a light blocking frame 3; specifically, the light blocking frame 3 includes four light blocking plates, namely the first light blocking plate 31, the second light blocking plate 32, the third light blocking plate 33 and the fourth light blocking plate 34; the first light blocking plate 31 is a horizontal plate, installed in the acquisition space 24, and installed between the first lamp plate 213 and the second lamp plate 223, for limiting the light angle of the first lamp plate 213; the second light blocking plate 32 is also a horizontal plate, installed in the acquisition space 24, and installed horizontally between the first lamp plate 213 and the third lamp plate 233, It is used to limit the light angle of the first lamp plate 213; the third light blocking plate 33 and the fourth light blocking plate 34 are symmetrically fixed on both sides of the acquisition space 24, and the upper side of the third light blocking plate 33 and the fourth light blocking plate 34 are fixed on the second mounting plate 12; the lower side of the third light blocking plate 33 and the fourth light blocking plate 34 are fixed on the third mounting plate 13; the rear side of the third light blocking plate 33 and the fourth light blocking plate 34 are fixed on the first mounting plate 11, and the third light blocking plate 33 and the fourth light blocking plate 34 are used to isolate the sides of the acquisition space 24 to prevent the light emitted from the lamp plate from leaking from the side. The light blocking frame 3 is used to limit the light emitted by the first lamp plate 213, the second lamp plate 223, and the third lamp plate 233 to the acquisition space 24, leaving only one side away from the first mounting plate 11 with an opening to emit light, thereby improving the utilization rate of the light source.

[0076] The third light baffle 33, the fourth light baffle 34, the first mounting plate 11, the second mounting plate 12 and the third mounting plate 13 are connected and fixed to each other by bolts or screws to form a mounting frame, and both sides of the first light baffle 31 and the second light baffle 32 are fixed to the third light baffle 33 and the fourth light baffle by bolts or screws.

[0077] The tooth image acquisition device further includes a control module and a display interaction module 7; the control module and the display interaction module 7 are both fixed on the base frame 1, the control module is connected to the signal of the display interaction module 7, and the control module is connected to the signal of the acquisition structure 2. Specifically, the control module is designed as a development motherboard equipped with Android, Windows or Linux operating systems. The development motherboard is electrically connected to the display interaction module 7, the lamp board and the imaging camera through wires. The control module is responsible for preview and control of the imaging camera, control of light sources, data processing and transmission, and can flexibly adapt to different application scenarios and realize efficient data acquisition. The display interaction module 7 is electrically connected to the control module through a wire, including two parts: image display and control interaction; the image display uses one or more of a liquid crystal display, an LED display, an OLED display, and a serial display, which can preview the real-time state during the shooting process; the control interaction is touched by the touch display, and the control processing module converts the touch command into control instructions to realize the control of the imaging camera and the lamp board. The control module controls the first lamp panel 213, the second lamp panel 223, and the third lamp panel 233 through the light source control module. The circuit board of the light source control module includes: a microcontroller chip, a communication transmission interface and a light source interface. The light source interface is electrically connected to the first light board 213, the second light board 223 and the third light board 233 through wires, and the program is burned to the microcontroller chip through the USB interface. The development mainboard transmits instructions to the microcontroller chip through the communication transmission interface to control the switch and brightness of the light source module.

[0078] The dental image acquisition device further comprises a frame 6 , and a control module, a display interaction module 7 and an acquisition structure 2 are all mounted on a base frame 1 .

[0079] Example 2

[0080] This embodiment provides a method for collecting tooth images. Figure 5 As shown, when it is necessary to collect the teeth of the oral to be collected, the first oral to be collected is closed, the upper jaw and the lower jaw are clenched and then moved to the opening of the acquisition space 24. The control module controls the LED light on the first lamp plate 213 to be opened to emit white light directly from the oral to be collected. The control module controls the first imaging camera 212 to collect the frontal viewing image of the oral to be collected. Then the control module controls the LED light on the first lamp plate 213 to be switched to blue-violet light, and the control module controls the first imaging camera 212 to collect fluorescence imaging formed by the blue-violet light irradiating the teeth through the filter 52.

[0081] Then, if Figure 6As shown, the oral cavity to be collected is opened, and the upper jaw and the lower jaw are as far away as possible, and the angles of the second acquisition unit 22 and the third acquisition unit 23 are adjusted so that both face the lower jaw or the upper jaw. The control module controls the LED lights on the second lamp plate 223 and the third lamp plate 233 to be turned on simultaneously to emit white light to direct oral cavity to be collected. The control module controls the second imaging camera 222 to acquire an intuitive image of the jaw teeth, and the third imaging camera 232 to acquire an intuitive image of the maxillary teeth. Then the control module controls the LED lights on the second lamp plate 223 and the third lamp plate 233 to switch to blue-violet light, and the control module controls the first imaging camera 212 to transmit the filter 52 to collect fluorescence imaging formed by the blue-violet light irradiating the teeth.

[0082] It should be additionally noted that the second light board 223 and the second imaging camera 222 may be used to capture images of the lower jaw alone, or the third light board 233 and the third imaging camera 232 may be used to capture images of the upper jaw alone.

[0083] Through the above acquisition method, the tooth image is first captured using a white light source, and then the control processing module switches to a blue-violet light source to continue the subsequent shooting. This light source conversion mechanism not only enhances the imaging effect, but also provides richer data support for comprehensive analysis of tooth status. Blue-violet light can effectively stimulate potential lesions on the tooth surface, providing doctors with clearer detection basis.

[0084] In summary, the tooth image acquisition device in Example 1 and the tooth image acquisition method in Example 2 significantly improves the efficiency and quality of tooth image acquisition and meets the diverse needs of modern oral health detection. Its convenient self-service design, precise imaging capabilities and flexible mechanical structure enable users to easily complete dental examinations at any time and place, thereby promoting the popularization and development of oral health management.

[0085] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A tooth image acquisition device, characterized in that: include: Base frame (1); A collection structure (2), the collection structure (2) comprising a plurality of collection units, the plurality of collection units being mounted on the base frame (1) at different angles; Among them, the collection ends of the collection units at several different angles are all suitable for facing the oral cavity to be collected to collect tooth image information at different angles.

2. The dental image acquisition device according to claim 1, characterized in that: The base frame (1) is provided with a collection space (24) which is open toward one side, and the oral cavity to be collected is placed at the opening of the collection space (24); The acquisition unit comprises: A first collection unit (21), the first collection unit (21) being installed in the collection space (24); A second collection unit (22) and a third collection unit (23), wherein the second collection unit (22) and the third collection unit (23) are symmetrically installed at the top and bottom of the collection space (24); Wherein, the collection ends of the first collection unit (21), the second collection unit (22) and the third collection unit (23) are all facing the opening of the collection space (24).

3. The dental image acquisition device according to claim 2, characterized in that: The base frame (1) comprises a first mounting plate (11), a second mounting plate (12) and a third mounting plate (13); the first mounting plate (11) is arranged vertically, the second mounting plate (12) is mounted on the top end of the first mounting plate (11); and the third mounting plate (13) is mounted on the bottom end of the first mounting plate (11); The first acquisition unit (21) comprises: A first imaging camera fixing panel (211), the first imaging camera fixing panel (211) being connected to the first mounting plate (11); A first imaging camera (212), wherein the first imaging camera (212) is mounted on the first imaging camera fixing panel (211); A first light board (213), the first light board (213) is fixed on the first imaging camera (212), a first through hole is provided on the first light board (213), a collection end of the first imaging camera (212) passes through the first through hole and extends into the collection space (24), and a light-emitting surface of the first light board (213) faces the opening of the collection space (24).

4. The dental image acquisition device according to claim 3, characterized in that: The second acquisition unit (22) comprises: A second imaging camera fixing panel (221), wherein the second imaging camera fixing panel (221) is connected to the second mounting plate (12); a second imaging camera (222), the second imaging camera (222) being mounted on the second imaging camera fixing panel (221); the second imaging camera (222) being in an inclined state gradually approaching the axis of the first imaging camera (212) in a direction from the first mounting plate (11) to the opening of the acquisition space (24); A second light board (223), the second light board (223) is arranged on the second imaging camera (222), a second through hole is opened on the second light board (223), a collection end of the second imaging camera (222) passes through the second through hole and extends into the collection space (24), and a light-emitting surface of the second light board (223) faces the opening of the collection space (24).

5. The dental image acquisition device according to claim 4, characterized in that: The third acquisition unit (23) comprises: A third imaging camera fixing panel (231), the third imaging camera fixing panel (231) being connected to the third mounting plate (13); a third imaging camera (232), the third imaging camera (232) being mounted on the third imaging camera fixing panel (231); the third imaging camera (232) being in an inclined state gradually approaching the axis of the first imaging camera (212) in a direction from the first mounting plate (11) to the opening of the acquisition space (24); A third light board (233), the third light board (233) being arranged on the third imaging camera (232), the third light board (233) being provided with a third through hole, the collection end of the third imaging camera (232) passing through the third through hole and extending into the collection space (24), the light emitting surface of the third light board (233) facing the opening of the collection space (24).

6. The dental image acquisition device according to claim 5, characterized in that: The second imaging camera fixing panel (221) is rotatably arranged on the second mounting plate (12); The third imaging camera fixing panel (231) is rotatably arranged on the third mounting plate (13).

7. The dental image acquisition device according to claim 5, characterized in that: The dental image acquisition device further comprises a light blocking frame (3), and the light blocking frame (3) is used to confine the light emitted by the first light board (213), the second light board (223) and the third light board (233) within the acquisition space (24).

8. The dental image acquisition device according to claim 1, characterized in that: The dental image acquisition device further comprises a control module and a display interaction module (7); the control module and the display interaction module (7) are both fixed on the base frame (1); The control module is connected to the display interaction module (7) by signal, and the control module is connected to the acquisition structure (2) by signal.

9. A method for collecting tooth images, characterized in that: The following steps are involved: Placing the oral cavity to be collected at the opening of the collection space (24); The oral cavity to be collected is closed, and the first imaging camera (212) collects a frontal image of the oral cavity to be collected; When the mouth is open, the second imaging camera (222) and the third imaging camera (232) respectively capture images of the mandibular and maxillary occlusal surfaces in the oral cavity.

10. The method for collecting dental images according to claim 9, characterized in that: Step: "The oral cavity to be collected is closed, and the first imaging camera (212) collects a frontal image of the oral cavity to be collected; The process of collecting images of the mandibular and maxillary occlusal surfaces in the oral cavity with the oral cavity opened and the second imaging camera (222) and the third imaging camera (232) respectively includes the following sub-steps: When the oral cavity is closed and the image is to be collected, the first light panel (213) emits white light to illuminate the front of the teeth, and the first imaging camera (212) collects a front direct image. Then, the first light panel (213) emits blue-violet light to illuminate the front of the teeth, and the first imaging camera (212) collects a front fluorescent image. When the oral cavity is opened for collection, the second light board (223) and the third light board (233) both emit white light to illuminate the teeth of the mandible and the maxilla respectively, the second imaging camera (222) collects the direct image of the mandibular teeth, and the third imaging camera (232) collects the direct image of the maxillary teeth, then the second light board (223) and the third light board (233) both emit blue-violet light to illuminate the teeth of the mandible and the maxilla respectively, the second imaging camera (222) collects the fluorescent image of the mandibular teeth, and the third imaging camera (232) collects the fluorescent image of the maxillary teeth.

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