CN209915926U - Oral cavity panoramic image shooting device - Google Patents
Oral cavity panoramic image shooting device Download PDFInfo
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- CN209915926U CN209915926U CN201920347667.7U CN201920347667U CN209915926U CN 209915926 U CN209915926 U CN 209915926U CN 201920347667 U CN201920347667 U CN 201920347667U CN 209915926 U CN209915926 U CN 209915926U
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Abstract
The utility model relates to an oral panoramic image shooting device, which comprises a shooting handle and a shooting head component, wherein the shooting head component can be rotatably arranged at one end of the shooting handle, the shooting head component comprises shooting cameras which are orthogonally arranged, the shooting cameras are groove-shaped, a camera module is arranged in the bottom end of the shooting cameras, and the groove ends of the shooting cameras are all arranged towards the inner side of a right-angle included angle; the oral cavity panoramic image shooting device that provides among the above-mentioned technical scheme, simple structure, convenient to use, it utilizes and is the orthogonal relation between tooth labial surface and the occlusal surface, adopts the camera that the quadrature was arranged, can shoot tooth labial surface and occlusal surface simultaneously to utilize the camera to inject the image distance when shooing, guaranteed that shooting angle and distance are unchangeable, reduced the degree of freedom that the camera removed, improved the image acquisition quality greatly.
Description
Technical Field
The utility model relates to an oral cavity endoscope technical field, concretely relates to oral cavity panoramic image shoots device.
Background
The oral endoscope is a common instrument used in oral examination, can snap the internal environment in the oral cavity, makes clear judgment, and marks the state of an illness of a patient so as to improve the cure and treatment efficiency of the illness. The general oral cavity panoramic image needs to shoot the pictures of two occlusal surfaces and two labial surfaces about, and some current oral cavity endoscope products almost all are simple single camera module products, and appearance structure is similar to the toothbrush, adopts ready-made camera module, relies on user manual control camera's shooting angle and distance to carry out random shooting completely, and the shooting efficiency is extremely low, gathers four shooting faces and need to carry out the quartic shooting respectively. And the internal environment of the oral cavity is relatively complicated, and it is extremely difficult to control the shooting distance and the shooting angle of the camera completely by the manual operation of the user, the shooting of the special pictures for dentistry usually needs a plurality of medical staff to operate, if the user controls the camera to carry out random shooting, the shooting quality randomness is relatively high, and a reliable image which can be used for oral cavity diagnosis cannot be formed. Therefore, it is necessary to design a new technical solution to comprehensively solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oral cavity panoramic image shoots device, its simple structure, convenient to use can effectively solve current oral cavity endoscope and shoot the distance and shoot the angle at random, easily leads to the unreliable, unable problem that is used for the oral cavity preliminary diagnosis of picture quality.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides an oral cavity panoramic image shoots device, is including shooting handle and camera subassembly, the rotatable one end that sets up at the shooting handle of camera subassembly, camera subassembly includes the shooting camera that the quadrature was arranged, the shooting camera is the recess shape, is provided with the camera module in the bottom of shooting camera, and the notch end of shooting camera all sets up towards the inboard of right angle contained angle.
The further scheme is that the diameter of the notch end of the camera is larger than that of the bottom end of the camera.
The shooting head assembly is connected with the shooting handle through a pin and a torsion spring, a connecting groove is formed in the connecting end of the shooting head assembly and the shooting handle, a connecting hole is formed in the connecting end of the shooting handle and the shooting head assembly, and the pin penetrates through the connecting hole and is arranged in the connecting groove; the torsion spring is arranged in the connecting groove, one end of the torsion spring is connected with the shooting handle, and the other end of the torsion spring is connected with the shooting head component.
The camera module is a multi-channel camera module, the focal length of a lens of the camera module is 0.9 ~ 1.2.2 mm, the F number is 3.5 ~ 4.5.5, and the diagonal angle of view is 90 ~ 100 degrees.
According to a further scheme, the number of the shooting cameras is four, the four shooting cameras are located in the same plane, two shooting cameras located on the upper side are arranged in an orthogonal mode, and two shooting cameras located on the lower side are arranged in an orthogonal mode.
The oral cavity panoramic image shooting device is provided among the above-mentioned technical scheme, utilize and be the orthogonal relation between tooth labial surface and the occlusal surface, and the nature of mutual noninterference when two upper and lower faces are shot, adopt the camera that the quadrature was arranged, shoot tooth labial surface and occlusal surface simultaneously, and utilize the camera to inject the image distance when shooing, guaranteed that shooting angle and distance are unchangeable, reduced the degree of freedom that the camera removed, reduce rocking of camera, improved image acquisition quality greatly.
Drawings
Fig. 1 is a schematic structural view of an oral panoramic image photographing device 1 according to the present invention;
fig. 2 is a schematic structural view of an oral panoramic image photographing device of the present invention in embodiment 2;
fig. 3 is a schematic view of a two-way orthogonal simultaneous acquisition structure according to embodiment 1 of the present invention;
fig. 4 is a schematic diagram of a four-way orthogonal simultaneous acquisition structure according to embodiment 2 of the present invention;
FIG. 5 is an exploded view of the connection structure of the camera module and the camera handle of the present invention;
fig. 6 is a schematic diagram of a multi-channel integrated wide-angle macro camera module.
In the figure: 1. a shooting handle; 11. connecting holes; 2. a camera head assembly; 21. shooting a camera; 22. a camera module; 23. connecting grooves; 3. a tooth; 4. a pin; 5. a torsion spring.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
Example 1
An oral panoramic image shooting device is shown in figure 1 and comprises a shooting handle 1 and a shooting head assembly 2, wherein the shooting head assembly 2 is rotatably arranged at one end of the shooting handle 1, the shooting head assembly 2 comprises shooting heads 21 which are orthogonally arranged, the shooting heads 21 are groove-shaped, a camera module 22 is arranged in the bottom end of the shooting heads 21, and the notch ends of the shooting heads 21 are all arranged towards the inner side of a right-angle included angle; and the diameter of the notch end of the camera 21 is larger than that of the bottom end of the camera 21. Wherein the size of taking a picture the camera size and the formation of image frame phase-match of camera module, the degree of depth of taking a picture the camera is promptly and shoots the object distance. In the shooting process, only need to compress tightly hard the camera on the tooth surface can guarantee that shooting angle and distance remain unchanged, like this has injectd the image distance when shooing promptly, utilize the structure that multiaspect quadrature was shot simultaneously, the camera of shooing the occlusal surface has utilized tooth 3's labial surface to carry on spacingly, the camera of shooing the labial surface has utilized tooth 3's occlusal surface to carry on spacingly, the degree of freedom that the camera removed when having reduced to shoot, the rocking of camera when having reduced to shoot greatly, the angle is rotated, the appearance of non-ideal condition such as out of focus.
As shown in fig. 5, the camera head assembly 2 is connected with the camera handle 1 through a pin 4 and a torsion spring 5 so that the camera head assembly can freely rotate within +/-45 degrees, a connecting groove 23 is arranged at the connecting end of the camera head assembly 2 and the camera handle 1, a connecting hole 11 is arranged at the connecting end of the camera handle 1 and the camera head assembly 2, and the pin 4 passes through the connecting hole 11 and is arranged in the connecting groove 23; the torsion spring 5 is arranged in the connecting groove 23, one end of the torsion spring 5 is connected with the shooting handle 1, and the other end of the torsion spring 5 is connected with the shooting head component 2; the torsion spring is arranged in the connecting groove, and when the shooting handle rotates, the torsion spring is driven to correspondingly twist, the torsion spring deforms, and the generated elastic force tends to pull the handle back to the original position (centering force).
The camera 21 of clapping in this embodiment is provided with two, and two camera 21 quadrature arrangements of clapping, camera module 22 is multichannel camera module, and the camera adopts wide-angle macro lens, and the camera focal length is 0.9mm, and the F number is 3.5, and diagonal angle of view is 90 degrees. As shown in fig. 3, two camera modules are arranged in the shooting camera according to the positions shown in fig. 3, and the camera modules are connected with the processing circuit through the flexible circuit board and arranged in the handle. As shown in fig. 6, the camera module is an integrated camera module, and integrates an LED light supplement device to adapt to the shooting environment in the oral cavity, and the camera adopts a wide-angle macro lens, and is specially customized by matching with a CMOS sensor of which the size is less than or equal to 1/6 inches (1/9 inches is selected in this embodiment). Two camera modules share one group of signal flat cables, so that signal wiring is facilitated, and the structural design is more compact. Because the miniaturized short-focus wide-angle lens is adopted, the length, the width and the height of the single volume of the camera module do not exceed 5mm (the single volume is 3.5 x 3.5mm in the embodiment), and the flexible circuit board and the high-speed miniature connector are adopted for signal connection between the lens and the main control chip. The maximum field angle can reach 110 degrees, and the nearest shooting distance is 5 mm.
A shooting method of the oral panoramic image shooting device comprises the following steps:
s1, plugging an oral panoramic image shooting device into the leftmost/right side of an oral cavity, opening an APP matched with a camera module to observe a real-time image, and preferably seeing the innermost teeth;
s2, adjusting the relative position of the oral panoramic image shooting device and the teeth to enable the two shooting cameras to respectively press the upper tooth surfaces for shooting, and observing a real-time picture in the APP to enable the occlusal surface and the labial surface of the teeth to be opposite to the cameras and to be in the center of the picture;
s3, uniformly and slowly dragging the shooting handle from left/right to right/left to acquire an image, continuously moving the shooting handle, changing the dragging action into a pushing action after the shooting position crosses the door tooth position, and continuously pushing the shooting handle from left/right to right/left to shoot;
s4, when the rightmost/left teeth appear in the picture, finishing shooting;
s5, waiting for the APP to push out a panoramic image, judging whether the upper tooth surface is successfully shot or not according to the panoramic image, uploading shot data for further processing if the upper tooth surface is successfully shot, repeating the step S1 ~ S4, and shooting and collecting images of the lower tooth surface, otherwise, repeating the step S1 ~ S4, and re-shooting and collecting images of the upper tooth surface;
and S5, after the upper tooth surface is successfully shot, waiting for the APP to push out the panoramic image of the lower tooth surface, judging whether the lower tooth surface is successfully shot according to the panoramic image, uploading shot data for further processing if the lower tooth surface is successfully shot, otherwise, repeating the step S1 ~ S4, and re-shooting the lower tooth surface to acquire images.
Example 2
An oral panoramic image shooting device is shown in fig. 2 and comprises a shooting handle 1 and a shooting head assembly 2, wherein the shooting head assembly 2 is rotatably arranged at one end of the shooting handle 1, the shooting head assembly 2 comprises shooting heads 21 which are orthogonally arranged, the shooting heads 21 are groove-shaped, a camera module 22 is arranged in the bottom end of the shooting heads 21, and the notch ends of the shooting heads 21 are all arranged towards the inner side of a right-angle included angle; the diameter of the notch end of the camera 21 is larger than that of the bottom end of the camera 21; wherein the size of taking a picture of camera 21 and camera module 22's formation of image width of cloth phase-match, the degree of depth of taking a picture of camera is promptly for shooting the object distance, at the shooting in-process, only need compress tightly the camera hard and can guarantee that shooting angle and distance remain unchanged on the tooth surface, the image distance when having injectd the shooting like this promptly, utilize the structure that multiaspect quadrature was shot simultaneously, the camera of shooting occlusal surface utilizes tooth 3's labial surface to carry on spacingly, the camera of shooting labial surface has utilized tooth 3's occlusal surface to carry on spacingly, the degree of freedom that the camera removed when having reduced the shooting, rocking of camera when having reduced the shooting greatly, the angle is rotated, the appearance of non-ideal circumstances such as out of focus.
As shown in fig. 5, the camera head assembly 2 is connected with the camera handle 1 through a pin 4 and a torsion spring 5 so that the camera head assembly can freely rotate within +/-45 degrees, a connecting groove 23 is arranged at the connecting end of the camera head assembly 2 and the camera handle 1, a connecting hole 11 is arranged at the connecting end of the camera handle 1 and the camera head assembly 2, and the pin 4 passes through the connecting hole 11 and is arranged in the connecting groove 23; the torsion spring 5 is arranged in the connecting groove 23, one end of the torsion spring 5 is connected with the shooting handle 1, and the other end of the torsion spring 5 is connected with the shooting head component 2.
Because the internal environment of the oral cavity is complex, the tooth distribution presents a special dental arch curve, in order to ensure that the shooting angle is always vertical to the occlusal surface and the labial surface of the tooth, the camera part can rotate according to the dental arch curve on the surface of the tooth in a self-adaptive manner in the shooting moving process; adopt the jump ring structure in this embodiment to couple together camera subassembly and shooting handle for the camera subassembly can free rotation for shooting handle, has certain power of going back again. Therefore, when the camera component moves on the surface of the tooth, a rebounding moment always exists to ensure that the opening end of the camera is tightly attached to the surface of the tooth, and the optical axis of the camera can be always vertical to the surface of the tooth to be shot.
In the embodiment, four cameras are arranged, the four cameras are positioned in the same plane, two cameras positioned on the upper side are orthogonally arranged, and two cameras positioned on the lower side are orthogonally arranged; the camera module is the multichannel camera module, and its camera adopts wide angle macro lens, and the camera focal length is 1.04mm, and the F number is 4, and diagonal angle of vision is 100 degrees. As shown in fig. 4, four camera modules are arranged in the shooting camera according to the positions shown in fig. 4, and the camera modules are connected with the processing circuit through the flexible circuit board and arranged in the handle. As shown in fig. 6, the camera module is an integrated camera module, and integrates an LED light supplement device to adapt to the shooting environment in the oral cavity, and the camera adopts a wide-angle macro lens, and is specially customized by matching with a CMOS sensor of which the size is less than or equal to 1/6 inches (1/9 inches is selected in this embodiment). Two camera modules share one group of signal flat cables, so that signal wiring is facilitated, and the structural design is more compact. Because the miniaturized short-focus wide-angle lens is adopted, the length, the width and the height of the single volume of the camera module do not exceed 5mm (the single volume is 3.5 x 3.5mm in the embodiment), and the flexible circuit board and the high-speed miniature connector are adopted for signal connection between the lens and the main control chip. The maximum field angle can reach 110 degrees, and the nearest shooting distance is 5 mm.
Because the relative position of four faces in the oral cavity is fixed, and the labial surface and the occlusal surface are in an orthogonal relation, the simultaneous shooting cannot be influenced mutually, namely, the image of one face cannot enter the visual field of another camera, and the upper face and the lower face cannot interfere with each other when shooting. Between two cameras of quadrature of each other, the light path is kept apart to in guaranteeing that the light filling LED light of every camera module place from can not penetrate all the other cameras directly, occlusal surface about the four-way camera quadrature is arranged to the adoption in this embodiment and shoots simultaneously and lip surface about, compares in the shooting mode of current product, and collection efficiency can improve 4 times.
A shooting method of the oral panoramic image shooting device comprises the following steps:
s1, plugging an oral panoramic image shooting device into the leftmost/right side of an oral cavity, opening an APP matched with a camera module to observe a real-time image, and preferably seeing the innermost teeth;
s2, adjusting the relative positions of the oral panoramic image shooting device and the teeth, enabling the four cameras to respectively compress and shoot tooth surfaces, observing a real-time picture in the APP, and enabling the occlusal surface and the labial surface of the teeth to be opposite to the cameras and to be in the center of the picture;
s3, uniformly and slowly dragging the shooting handle from left/right to right/left to acquire an image, continuously moving the shooting handle, changing the dragging action into a pushing action after the shooting position crosses the door tooth position, and continuously pushing the shooting handle from left/right to right/left to shoot;
s4, when the rightmost/left teeth appear in the picture, finishing shooting;
s5, waiting for the APP to push out the panoramic image, judging whether the shooting is successful according to the panoramic image, if so, uploading the shot data for further processing, and otherwise, repeating the step S1 ~ S4.
And (4) supplementary notes: the size of the camera in example 2 is explained with reference to the formula:
firstly, calculating the minimum shot object distance, namely the distance between the open end of the camera and the camera; the minimum shooting object distance can be determined through theoretical calculation, optical path simulation and combination of actual requirements of rear-end image processing.
Set the image distance as
At an object distance of
The focusing position is at a distance from the lens
Focal length of lens is
Lens assemblyNumber (F-number) labelThe algorithm allows the diameter of the image circle of confusion to be
The length of the long side of CMOS is(ii) a According to the splicing requirement, the width of the camera view field is
. The aim of the calculation is to obtain the minimum object distance, i.e.
And minimum.
According to the object-image relationship, it can be obtained that:
（1）
combining the formulas (1) to (3) to obtain
The minimum value of (d) is:
（4）
according to the shot object distance, the size of the shot picture can be obtained by combining the parameters of the camera module, and the actual size of the camera is determined according to the size of the shot picture. When the minimum object distance is obtainedAngle of view of
Then the opening end of the shooting camera has the size and width of
。
To be provided with，，
The width of one tooth;
minimum image distance
Minimum object distance。
The above detailed description of the embodiments of the present invention has been provided with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make several equivalent transformations and substitutions without departing from the principles of the present invention after learning the contents of the present invention.
Claims (6)
1. The utility model provides an oral cavity panoramic image shooting device, is including shooing handle (1) and camera subassembly (2), camera subassembly (2) rotatable setting is in the one end of shooing handle (1), its characterized in that: camera subassembly (2) are including taking a photograph camera (21) that the quadrature was arranged, it is recess shape to take a photograph camera (21), is provided with camera module (22) in the bottom of taking a photograph camera (21), and the notch end of camera (21) all sets up towards the inboard of right angle contained angle.
2. The oral cavity panoramic image photographing apparatus according to claim 1, wherein: the diameter of the notch end of the shooting camera (21) is larger than that of the bottom end of the shooting camera (21).
3. The oral cavity panoramic image photographing apparatus according to claim 1, wherein: the camera component (2) is connected with the camera handle (1) through a pin (4) and a torsion spring (5), a connecting groove (23) is formed in the connecting end of the camera component (2) and the camera handle (1), a connecting hole (11) is formed in the connecting end of the camera handle (1) and the camera component (2), and the pin (4) penetrates through the connecting hole (11) and is arranged in the connecting groove (23); the torsion spring (5) is arranged in the connecting groove (23), one end of the torsion spring (5) is connected with the shooting handle (1), and the other end of the torsion spring is connected with the shooting head component (2).
4. The oral cavity panoramic image shooting device of claim 1, wherein the camera module (22) is a multi-channel camera module (22), the focal length of the lens of the camera module is 0.9 ~ 1.2.2 mm, the F number is 3.5 ~ 4.5.5, and the diagonal angle of view is 90 ~ 100 degrees.
5. The oral cavity panoramic image photographing apparatus according to claim 1, wherein: the two shooting cameras (21) are arranged, and the two shooting cameras (21) are arranged orthogonally.
6. The oral cavity panoramic image photographing apparatus according to claim 1, wherein: the four shooting cameras (21) are arranged in the same plane, the two shooting cameras (21) on the upper side are arranged in an orthogonal mode, and the two shooting cameras (21) on the lower side are arranged in an orthogonal mode.
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| CN201920347667.7U CN209915926U (en) | 2019-03-19 | 2019-03-19 | Oral cavity panoramic image shooting device |
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| CN201920347667.7U CN209915926U (en) | 2019-03-19 | 2019-03-19 | Oral cavity panoramic image shooting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109805886A (en) * | 2019-03-19 | 2019-05-28 | 南京齿贝犀科技有限公司 | A kind of oral cavity panorama image shooting apparatus and its image pickup method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109805886A (en) * | 2019-03-19 | 2019-05-28 | 南京齿贝犀科技有限公司 | A kind of oral cavity panorama image shooting apparatus and its image pickup method |
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