Human body three-dimensional scanning equipment

Abstract

The utility model discloses a human body three-dimensional scanning device, which relates to the technical field of three-dimensional scanning, and comprises three structured light scanning assemblies, namely a first structured light scanning assembly, a second structured light scanning assembly and a third structured light scanning assembly, and a supporting assembly, comprising a supporting column and a mounting frame arranged on the top of the front face of the supporting column, a first structured light scanning assembly is arranged on the front face of the supporting column, and the mounting frame is in an inverted-U shape and used for shielding light of an external light source. The second structured light scanning assembly and the third structured light scanning assembly are respectively embedded in the two inclined planes, and the above design realizes high-precision and rapid omnidirectional acquisition of three-dimensional data of a human head through the spatial cooperative layout of the three structured light scanning assemblies and the light shielding design of the inverted concave mounting rack. And complex curved surface blind areas such as head auricular retroauricular and cheekbone can be effectively eliminated.

Description

Technical Field

[0001] This utility model relates to the field of three-dimensional scanning technology, and in particular to a three-dimensional human body scanning device. Background Technology

[0002] Traditional 3D human body scanning equipment often employs a single structured light scanning component or a dual scanning component layout. During the scanning process, multi-angle data acquisition relies on human body rotation or equipment movement. For example, the commonly used pre- and post-operative photo documentation method involves manual photography. Two-dimensional plane photos require the user to sit in front of the camera and take pictures from various fixed directions. Taking a set of pre-operative photos requires multiple angles, such as front, left side, left 45-degree angle, right side, and right 45-degree angle. This requires considerable patient cooperation from the client, which obviously reduces scanning efficiency. Secondly, this design has scanning blind spots, especially in covering complex curved surfaces such as the head and shoulders, where angle limitations can easily lead to missing details or discontinuous point cloud data. Furthermore, the light source of conventional equipment is easily affected by ambient light, requiring use in a dark room or under specific lighting conditions, limiting its application flexibility. Therefore, improvements are needed. Utility Model Content

[0003] The main purpose of this invention is to provide a three-dimensional human body scanning device, which aims to solve the problem of not being able to quickly scan the human head from all angles.

[0004] To achieve the above objectives, this utility model proposes a three-dimensional human body scanning device, which includes:

[0005] Three structured light scanning components, namely the first structured light scanning component, the second structured light scanning component, and the third structured light scanning component;

[0006] The support assembly includes a support column and a mounting bracket disposed on the top front of the support column. The first structured light scanning assembly is disposed on the front of the support column. The mounting bracket is in the shape of an inverted "U" and is used to block external light sources.

[0007] The front of the extended ends of the mounting bracket is provided with inclined surfaces that are inclined along the direction of the support column. The second structured light scanning component and the third structured light scanning component are respectively embedded in the two inclined surfaces. The second structured light scanning component and the third structured light scanning component are symmetrically distributed and are both inclined, so as to scan the left and right sides of the human head respectively.

[0008] Preferably, the vertical height distance between the first structured light scanning component and the ground is L, and the vertical height distance between the second and third structured light scanning components and the ground is M, wherein the value of L is greater than the value of M.

[0009] The height difference between L and M is in the range of 20-25cm.

[0010] Preferably, the first structured light scanning component, the second structured light scanning component, and the third structured light scanning component have the same tilt angle on their respective planes;

[0011] The tilt angle between the first structured light scanning component and its plane ranges from 15 to 20 degrees.

[0012] Preferably, a connecting column is provided at the top of the support column along the front direction, and the mounting frame is suspended at the bottom of the connecting column by a connecting shaft.

[0013] Preferably, a supplementary light is provided at the bottom of the connecting column away from the supporting column.

[0014] Preferably, the structured light scanning component is embedded with a projector, a DSLR camera, and an industrial camera in sequence from top to bottom.

[0015] Preferably, a control unit is provided inside the support column, an indicator screen is provided on the front of the support column, and a touch screen is provided on the back of the support column. The control unit is electrically connected to the projector, SLR camera, industrial camera, fill light, indicator screen and touch screen. The touch screen can adjust the fill light to turn on and off through the control unit.

[0016] Preferably, a support base is provided at the bottom of the support column. The support base is U-shaped, and the protruding ends at both ends of the support base are located below the second structured light scanning component and the third structured light scanning component, respectively.

[0017] The beneficial effects of this utility model are as follows: the human body 3D scanning device achieves high-precision and rapid omnidirectional acquisition of human head 3D data through the spatial collaborative layout of three structured light scanning components and the light-masking design of the inverted U-shaped mounting bracket, effectively eliminating blind spots in complex curved surfaces such as behind the ears and cheekbones, and can meet the needs of multiple scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Label Explanation:

[0023] 1. Structured light scanning component; 11. First structured light scanning component; 12. Second structured light scanning component; 121. Projector; 122. SLR camera; 123. Industrial camera; 13. Third structured light scanning component;

[0024] 2. Support assembly; 21. Support column; 211. Connecting column; 2111. Fill light; 2112. Connecting shaft; 212. Touch screen; 213. Indicator screen; 214. Support base; 22. Mounting bracket; 221. Extended end;

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model proposes a three-dimensional human body scanning device. Please refer to [reference needed]. Figures 1-3 The human body 3D scanning device includes three structured light scanning components 1 and a support component 2. The three structured light scanning components 1 are a first structured light scanning component 11, a second structured light scanning component 12, and a third structured light scanning component 13. The support component 2 includes a support column 21 and a mounting frame 22 set on the top front of the support column 21. The first structured light scanning component 11 is set on the front of the support column 21. The mounting frame 22 is in an inverted "U" shape to block the light from the external ambient light source. The front of the two protruding ends 221 of the mounting frame 22 is provided with inclined surfaces along the direction of the support column 21. The second structured light scanning component 12 and the third structured light scanning component 13 are respectively embedded in the two inclined surfaces. The second structured light scanning component 12 and the third structured light scanning component 13 are symmetrically distributed and are both inclined to scan the left and right sides of the human head, respectively.

[0030] The above design utilizes the spatially coordinated layout of three structured light scanning components 1. Please refer to [reference needed]. Figure 2 Combined with the light-shielding design of the inverted U-shaped mounting bracket 22, it can acquire high-precision and fast omnidirectional three-dimensional data of the human head, effectively eliminating blind spots on complex curved surfaces such as behind the ears and cheekbones.

[0031] In this embodiment, please refer to Figure 1 The first structured light scanning component 11 is at a vertical height distance of L from the ground, and the second structured light scanning component 12 and the third structured light scanning component 13 are at a vertical height distance of M from the ground. The value of L is greater than M, and the height difference between L and M ranges from 20 to 25 cm. This design conforms to the ergonomic principle and achieves blind-spot-free coverage of the frontal area of ​​the face and the triangular area behind the ear and cheekbone. It improves the capture rate of complex curved surface point clouds by the structured light scanning component 1, thereby meeting the requirements of medical-grade facial recognition standards.

[0032] Following the above, in this embodiment, the height difference between L and M is 20cm.

[0033] For further details, please refer to... Figure 2 The first structured light scanning component 11, the second structured light scanning component 12, and the third structured light scanning component 13 are tilted at the same angle on their respective planes. Specifically, the tilt angle between the first structured light scanning component 11 and its plane is in the range of 15-20 degrees. This setting enables the structured light scanning component 1 to scan the face to the maximum extent, and the light projected by the structured light scanning component 1 to evenly cover the face, so that even the lip lines and the shadows behind the ears can be clearly scanned.

[0034] Following the above, in this embodiment, the tilt angle between the first structured light scanning component 11 and its plane is 15 degrees.

[0035] Please refer to Figure 2 Regarding the connection between the mounting frame 22 and the support column 21, in this embodiment, a connecting column 211 is provided on the top of the support column 21 along the front direction, and the mounting frame 22 is suspended at the bottom of the connecting column 211 by a connecting shaft 2112 (not shown). This arrangement ensures that the mounting frame 22 is stably located below the connecting column 211, thereby ensuring that the second structured light scanning component 12 and the third structured light scanning component 13 are stably in the predetermined position without shaking. This arrangement only requires the user to stand at the corresponding position below the mounting frame 22 without rotating, so that the head can be scanned at all angles for modeling.

[0036] Secondly, the mounting bracket 22, by shielding the head to be scanned and the structured light scanning component 1, can reduce the influence of external ambient light on the operation of the structured light scanning component 1, thereby further improving the scanning accuracy.

[0037] In this embodiment, please refer to Figure 2 The structured light scanning component 1 is embedded with a projector 121, a DSLR camera 122 and an industrial camera 123 from top to bottom. A fill light 2111 is provided at the bottom of the connecting column 211 away from the support column 21. When the DSLR camera 122 is used to collect high-definition textures on the head surface for texture display, a bright environment is required. The fill light 2111 is turned on to provide a light source.

[0038] In essence, in the embodiments of this city, please refer to Figures 1-3The support column 21 houses a control unit. An indicator screen 213 is located on the front of the support column 21, and a touch screen 212 is located on the back. The control unit is electrically connected to the projector 121, SLR camera 122, industrial camera 123, fill light 2111, indicator screen 213, and touch screen 212. The touch screen 212, through the control unit, can adjust the fill light 2111 to turn on and off. Specifically, the operator operates the touch screen 212 to make the projector 121 and industrial camera 123 work. 21. High-frequency coded light is projected onto the surface of the head to be scanned, and a photograph of the head surface is acquired at the same time. A model is generated based on the coded light information. During the above process, the supplementary light 2111 is in an off state. When the industrial camera 123 needs to work, the operator turns on the supplementary light 2111 by operating the touch screen 212. As for the setting of the indicator screen 213, the indicator screen 213 is synchronized with the screen 212. The human body to be scanned can move its position according to the image displayed on the indicator screen 213 to find the most suitable position for scanning.

[0039] In this embodiment, a support base 214 is provided at the bottom of the support column 21. The support base 214 is in the shape of a "U". The protruding ends of the support base 214 are located below the second structured light scanning component 12 and the third structured light scanning component 13, respectively. This arrangement is to improve the stability of the entire human body three-dimensional scanning device and avoid accidental injury to the person to be scanned.

[0040] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A human three-dimensional scanning apparatus, characterized by, The human body three-dimensional scanning device comprises: three structured light scanning components, namely a first structured light scanning component, a second structured light scanning component and a third structured light scanning component; a support component comprising a support column and a mounting rack arranged on the top front of the support column, the first structured light scanning component being arranged on the front of the support column, the mounting rack being in the shape of an inverted "concave" character and used for shielding external light; the front of the extended end of each end of the mounting rack is provided with an inclined surface inclined along the direction of the support column, the second structured light scanning component and the third structured light scanning component being respectively embedded in the two inclined surfaces, the second structured light scanning component and the third structured light scanning component being symmetrically distributed and being inclined to be used for scanning the left side and the right side of the head of the human body respectively.

2. The human body three-dimensional scanning device according to claim 1, characterized in that, The height distance of the first structured light scanning component from the ground in the vertical direction is L, the height distance of the second structured light scanning component and the third structured light scanning component from the ground in the vertical direction is M, the value of L being greater than M; The height difference distance range of L and M is 20-25 cm.

3. The human three-dimensional scanning device according to claim 2, characterized in that, The inclination angles of the first structured light scanning component, the second structured light scanning component and the third structured light scanning component on the corresponding planes are consistent. The inclination angle range between the first structured light scanning component and its plane is 15-20 degrees.

4. The human three-dimensional scanning device according to claim 3, characterized in that, The top of the support column is provided with a connecting column in the front direction, the bottom of the connecting column suspending the mounting rack through a connecting shaft.

5. The human three-dimensional scanning device according to claim 4, characterized in that, The end of the connecting column away from the support column is provided with a light supplementing lamp.

6. The human three-dimensional scanning device according to claim 5, characterized in that, The structured light scanning component is sequentially embedded with a projector, a single-lens reflex camera and an industrial camera from top to bottom.

7. The human three-dimensional scanning device according to claim 6, characterized in that, The support column is provided with a control unit inside, an indication screen on the front of the support column and a touch screen on the back of the support column, the control unit being electrically connected with the projector, the single-lens reflex camera, the industrial camera, the light supplementing lamp, the indication screen and the touch screen, the touch screen being capable of adjusting the opening and closing of the light supplementing lamp through the control unit.

8. The apparatus according to claim 1, wherein, The bottom of the support column is provided with a support seat, the support seat being in the shape of a "concave" character, the protruding ends of the two ends of the support seat being respectively located below the second structured light scanning component and the third structured light scanning component.

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